font: squash commit into main

Squashed commit of the following:

commit a53942249c
Author: A.M. Rowsell <amr@frzn.dev>
Date:   Thu Apr 9 23:59:13 2026 -0400

    font: extensive tweaks, looks much better

commit 64205e137c
Author: A.M. Rowsell <amr@frzn.dev>
Date:   Thu Apr 9 12:13:00 2026 -0400

    font: fully implemented font changes to UI, size/spacing need tweaking

commit 901f063696
Author: A.M. Rowsell <amr@frzn.dev>
Date:   Wed Apr 8 09:36:03 2026 -0400

    font: tweak sizes of stats

commit 20f8c71fdf
Author: A.M. Rowsell <amr@frzn.dev>
Date:   Wed Apr 8 09:28:22 2026 -0400

    render: implement experimental font change, needs work

build.zig

@@ -25,6 +25,7 @@ pub fn build(b: *std.Build) void {
         "src/main.c",
         "src/map.c",
         "src/player.c",
+        "src/movement.c",
         "src/render.c",
         "src/rng.c",
         "src/settings.c",

docs/README.md

@@ -1,11 +1,13 @@
 # Rogged
 
-Turn-based roguelike dungeon crawler, built in C99 and with a dash of Zig to
-serve as a learning opportunity. Rogged is basically a classic roguelike where
-you descend through floors of a procedurally generated dungeon, fighting
-enemies, managing inventory, and trying to reach the bottom alive.
+Turn-based, infinite roguelike dungeon crawler built with C99 and with a dash of
+Zig. Meant to serve primarily, but not exclusively, as a learning opportunity.
+Rogged is basically a classic roguelike where you descend through floors of a
+procedurally generated dungeon, fighting enemies, managing inventory, and trying
+to reach the bottom alive or die chasing a highscore!
 
-A non-exhaustive list of its (current) features:
+The game itself, be it the code or mechanics, is _heavily_ in development. For
+now, a non-exhaustive list of its (current) features are as follows:
 
 - Turn-based combat with damage variance, critical hits, dodge, and block
   mechanics
@@ -18,33 +20,27 @@ A non-exhaustive list of its (current) features:
 - Procedural audio via raylib
 - ASCII-inspired tile rendering, with HP bars and floating damage text
 
-**Controls:**
-
-| Key           | Action                              |
-| ------------- | ----------------------------------- |
-| WASD / Arrows | Move or attack                      |
-| G             | Pick up item                        |
-| I             | Open inventory                      |
-| U             | Use a potion                        |
-| E             | Equip item from inventory           |
-| D             | Drop item                           |
-| Y / N         | Confirm / decline descending stairs |
-| R             | Restart (on game over)              |
-| Q             | Quit                                |
+There are still some features lacking polish, or lacking _any_ kind of attention
+to be viable. For a semi-complete list of things that need to be done, see the
+[future plans section](#future-plans).
 
 ## Build Instructions
 
-Rogged is built with C99 and Zig. Besides `raylib` and `pkg-config` you will
-need a C compiler and basic Zig tooling. For now, we use C99 and Zig 0.15.2.
-Those might change in the future.
-
-Additionally you will need `clang-format` and `just` for the developer workflow
-if you plan to contribute.
+Rogged is built on a relatively simple stack. It uses C99 for the main game
+logic, and Zig for the combat library. Besides `raylib` and `pkg-config`, you
+only need the core Zig tooling. For now the required Zig version is 0.15.2, but
+this might change in the future. Additionally, you will need `clang-format` and
+`just` for common development tasks in the case you plan to contribute. For
+building, Zig is enough.
 
 ### Using Nix (Recommended)
 
-The recommended developer tooling is [Nix](https://nixos.org). This provides a
-pure, reproducible devshell across all machines.
+The _recommended_ way of developing this project is using
+[Nix](https://nixos.org) and relying on devshells for pure, reproducible
+developer environment across all machines.
+
+If you are a [Direnv](https://direnv.net) user, you may simply run
+`direnv allow` or you may use `nix develop` to enter the default shell.
 
 ```sh
 # Enter the development shell
@@ -56,6 +52,9 @@ $ just dev
 
 ### Manual Build
 
+If you are allergic to good tooling and would rather use your system Zig, you
+may simply invoke `zig build` after acquiring Zig 0.15.2.
+
 ```sh
 # Full build
 $ zig build
@@ -67,6 +66,8 @@ $ zig build run
 $ just dev
 ```
 
+The Justfile provides commands that work across both methods.
+
 ### Task Runner Commands
 
 There's a `Justfile` designed to make common tasks somewhat easier. For now,
@@ -84,10 +85,14 @@ If the project gets more complicated, new tasks might be added.
 
 ## Future Plans
 
-The game is currently **playable end-to-end** but it lacks _serious_ polish to
-claim its place as a fun roguelike. Some of the features I'd like to introduce,
-in no particular order, are as follows:
+The game is currently **playable end-to-end**, but it lacks a fair bit of polish
+to claim its place as a fun, engaging roguelike you can just boot up and play.
+Some of the features that are planned for the future, in no particular order,
+are as follows:
 
+- [ ] **Better enemy AI** - The current AI is very simple.
+- [ ] **Fog of War** - Instead of loading the entire map, let the player
+      discover the rooms
 - [ ] **Save / Load system** - Persist and restore game state between sessions
 - [ ] **More enemy variety** - Additional enemy types with unique abilities
 - [ ] **More item variety** - Rings, wands, scrolls, and cursed items
@@ -100,8 +105,9 @@ in no particular order, are as follows:
 - [ ] **UI polish** - Better message log history, item descriptions, death
       screen
 
-In addition, it might be interesting to allow customizing the "world state" by
-as scripting API. Though, that is for much later.
+Later down the line it might be an interesting choice to provide a scripting
+API, likely with Lua, to allow customizing the game state and events. Though,
+that is for much later.
 
 ## Attributions
 
@@ -118,4 +124,6 @@ Additionally, _huge_ thanks to [Raylib] for how easy it made graphics and audio.
 This was perhaps my best experience in developing a graphical application, and
 CERTAINLY the most ergonomic when it comes to writing a game.
 
+---
+
 _I got rogged :/_

src/common.h

@@ -4,6 +4,10 @@
 #include "settings.h"
 #include <raylib.h>
 
+typedef struct {
+  int x, y;
+} Vec2;
+
 // Tile types
 typedef enum { TILE_WALL, TILE_FLOOR, TILE_STAIRS } TileType;
 
@@ -30,6 +34,8 @@ typedef struct {
   TileType tiles[MAP_HEIGHT][MAP_WIDTH];
   Room rooms[MAX_ROOMS];
   int room_count;
+  unsigned char visible[MAP_HEIGHT][MAP_WIDTH];
+  unsigned char remembered[MAP_HEIGHT][MAP_WIDTH];
 } Map;
 
 // Dungeon
@@ -57,7 +63,7 @@ typedef struct {
 
 // Player
 typedef struct {
-  int x, y;
+  Vec2 position;
   int hp, max_hp;
   int attack;
   int defense;
@@ -83,7 +89,7 @@ typedef enum { ENEMY_GOBLIN, ENEMY_SKELETON, ENEMY_ORC } EnemyType;
 
 // Enemy
 typedef struct {
-  int x, y;
+  Vec2 position;
   int hp;
   int max_hp;
   int attack;
@@ -98,6 +104,11 @@ typedef struct {
   int status_chance;
   int crit_chance;  // crit chance percentage (0-100)
   int crit_mult;    // crit damage multiplier percentage (e.g. 150 = 1.5x)
+  // vision
+  int vision_range;
+  int alert;         // 1 = aware of player, searching
+  int last_known_x;  // last position where enemy saw player
+  int last_known_y;
   // status effects
   StatusEffect effects[MAX_EFFECTS];
   int effect_count;
@@ -162,6 +173,8 @@ typedef struct {
   int potions_used;
   int floors_reached;
   int final_score;
+  // Seed for this run
+  unsigned int run_seed;
 } GameState;
 
 

src/enemy.c

@@ -2,7 +2,9 @@
 #include "combat.h"
 #include "common.h"
 #include "map.h"
+#include "movement.h"
 #include "rng.h"
+#include "settings.h"
 #include <string.h>
 
 // Forward declaration
@@ -29,7 +31,7 @@ void enemy_spawn(Enemy enemies[], int *count, Map *map, Player *p, int floor) {
     get_random_floor_tile(map, &ex, &ey, 50);
 
     // Don't spawn on player position
-    if (ex == p->x && ey == p->y) {
+    if (ex == p->position.x && ey == p->position.y) {
       continue;
     }
 
@@ -41,8 +43,8 @@ void enemy_spawn(Enemy enemies[], int *count, Map *map, Player *p, int floor) {
     // Create enemy
     Enemy e;
     memset(&e, 0, sizeof(Enemy));
-    e.x = ex;
-    e.y = ey;
+    e.position.x = ex;
+    e.position.y = ey;
     e.alive = 1;
     e.type = rng_int(ENEMY_GOBLIN, max_type);
     e.effect_count = 0;
@@ -68,6 +70,7 @@ void enemy_spawn(Enemy enemies[], int *count, Map *map, Player *p, int floor) {
       e.resistance[DMG_PIERCE] = 0;
       e.resistance[DMG_FIRE] = -25;
       e.resistance[DMG_POISON] = 50;
+      e.vision_range = 7;
       break;
     case ENEMY_SKELETON:
       e.max_hp = ENEMY_BASE_HP + floor + 2;
@@ -85,6 +88,7 @@ void enemy_spawn(Enemy enemies[], int *count, Map *map, Player *p, int floor) {
       e.resistance[DMG_PIERCE] = 50;
       e.resistance[DMG_FIRE] = 25;
       e.resistance[DMG_POISON] = 75;
+      e.vision_range = 6;
       break;
     case ENEMY_ORC:
       e.max_hp = ENEMY_BASE_HP + floor + 4;
@@ -102,6 +106,7 @@ void enemy_spawn(Enemy enemies[], int *count, Map *map, Player *p, int floor) {
       e.resistance[DMG_PIERCE] = -25;
       e.resistance[DMG_FIRE] = 0;
       e.resistance[DMG_POISON] = 0;
+      e.vision_range = 5;
       break;
     default:
       e.max_hp = ENEMY_BASE_HP;
@@ -115,6 +120,7 @@ void enemy_spawn(Enemy enemies[], int *count, Map *map, Player *p, int floor) {
       e.crit_chance = ENEMY_CRIT_CHANCE;
       e.crit_mult = ENEMY_CRIT_MULT;
       memset(e.resistance, 0, sizeof(e.resistance));
+      e.vision_range = ENEMY_VIEW_RANGE;
       break;
     }
     e.cooldown = e.speed;
@@ -127,58 +133,129 @@ void enemy_spawn(Enemy enemies[], int *count, Map *map, Player *p, int floor) {
 // Check if position has an enemy
 int is_enemy_at(const Enemy *enemies, int count, int x, int y) {
   for (int i = 0; i < count; i++) {
-    if (enemies[i].alive && enemies[i].x == x && enemies[i].y == y) {
+    if (enemies[i].alive && enemies[i].position.x == x && enemies[i].position.y == y) {
       return 1;
     }
   }
   return 0;
 }
 
-// Check if enemy can see player (adjacent)
-static int can_see_player(Enemy *e, Player *p) {
-  int dx = p->x - e->x;
-  int dy = p->y - e->y;
-  return (dx >= -1 && dx <= 1 && dy >= -1 && dy <= 1);
+// Check if enemy can see player (within view range and line of sight)
+static int can_see_player(Enemy *e, Player *p, Map *map) {
+  return can_see_entity(map, e->position.x, e->position.y, p->position.x, p->position.y, e->vision_range);
 }
 
-// Check if position is occupied by player
-static int is_player_at(Player *p, int x, int y) {
-  return (p->x == x && p->y == y);
-}
 
 // Move enemy toward player
 static void enemy_move_toward_player(Enemy *e, Player *p, Map *map, Enemy *all_enemies, int enemy_count) {
   int dx = 0, dy = 0;
 
-  if (p->x > e->x)
+  if (p->position.x > e->position.x)
     dx = 1;
-  else if (p->x < e->x)
+  else if (p->position.x < e->position.x)
     dx = -1;
 
-  if (p->y > e->y)
+  if (p->position.y > e->position.y)
     dy = 1;
-  else if (p->y < e->y)
+  else if (p->position.y < e->position.y)
     dy = -1;
 
-  // Try horizontal first, then vertical
-  int new_x = e->x + dx;
-  int new_y = e->y;
+  Vec2 dir = {dx, 0};
+  if (dx != 0) {
+    MoveResult r = try_move_entity(&e->position, dir, map, p, all_enemies, enemy_count, false);
+    if (r == MOVE_RESULT_MOVED)
+      return;
+  }
 
-  if (dx != 0 && is_floor(map, new_x, new_y) && !is_enemy_at(all_enemies, enemy_count, new_x, new_y) &&
-      !is_player_at(p, new_x, new_y)) {
-    e->x = new_x;
+  dir.x = 0;
+  dir.y = dy;
+  if (dy != 0) {
+    try_move_entity(&e->position, dir, map, p, all_enemies, enemy_count, false);
+  }
+}
+
+// Move enemy in a random direction (patrol)
+static void enemy_patrol(Enemy *e, Map *map, Enemy *all_enemies, int enemy_count) {
+  if (rng_int(0, 100) > ENEMY_PATROL_MOVE_CHANCE)
+    return;
+
+  int dx = rng_int(-1, 1);
+  int dy = rng_int(-1, 1);
+
+  if (dx == 0 && dy == 0)
+    return;
+
+  int new_x = e->position.x + dx;
+  int new_y = e->position.y + dy;
+
+  if (is_floor(map, new_x, new_y) && !is_enemy_at(all_enemies, enemy_count, new_x, new_y)) {
+    e->position.x = new_x;
+    e->position.y = new_y;
+  }
+}
+
+// Move enemy toward last known player position
+static void enemy_move_to_last_known(Enemy *e, Map *map, Enemy *all_enemies, int enemy_count) {
+  int dx = 0, dy = 0;
+
+  if (e->last_known_x > e->position.x)
+    dx = 1;
+  else if (e->last_known_x < e->position.x)
+    dx = -1;
+
+  if (e->last_known_y > e->position.y)
+    dy = 1;
+  else if (e->last_known_y < e->position.y)
+    dy = -1;
+
+  int new_x = e->position.x + dx;
+  int new_y = e->position.y;
+
+  if (dx != 0 && is_floor(map, new_x, new_y) && !is_enemy_at(all_enemies, enemy_count, new_x, new_y)) {
+    e->position.x = new_x;
   } else if (dy != 0) {
-    new_x = e->x;
-    new_y = e->y + dy;
-    if (is_floor(map, new_x, new_y) && !is_enemy_at(all_enemies, enemy_count, new_x, new_y) &&
-        !is_player_at(p, new_x, new_y)) {
-      e->x = new_x;
-      e->y = new_y;
+    new_x = e->position.x;
+    new_y = e->position.y + dy;
+    if (is_floor(map, new_x, new_y) && !is_enemy_at(all_enemies, enemy_count, new_x, new_y)) {
+      e->position.x = new_x;
+      e->position.y = new_y;
+    }
+  }
+
+  if (e->position.x == e->last_known_x && e->position.y == e->last_known_y)
+    e->alert = 0;
+}
+
+// Check if position is within alert radius of another enemy
+static int is_nearby_enemy(const Enemy *enemies, int count, int x, int y, int radius) {
+  for (int i = 0; i < count; i++) {
+    if (!enemies[i].alive)
+      continue;
+    int dx = enemies[i].position.x - x;
+    int dy = enemies[i].position.y - y;
+    if (dx * dx + dy * dy <= radius * radius)
+      return 1;
+  }
+  return 0;
+}
+
+// Propagate alert to nearby enemies
+static void propagate_alert(Enemy *trigger_enemy, Enemy *all_enemies, int enemy_count) {
+  for (int i = 0; i < enemy_count; i++) {
+    Enemy *e = &all_enemies[i];
+    if (!e->alive || e == trigger_enemy)
+      continue;
+    if (e->alert)
+      continue;
+    if (is_nearby_enemy(all_enemies, enemy_count, e->position.x, e->position.y, 5)) {
+      e->alert = 1;
+      e->last_known_x = trigger_enemy->last_known_x;
+      e->last_known_y = trigger_enemy->last_known_y;
     }
   }
 }
 
-// Perform a single action for an enemy (attack if adjacent, otherwise move)
+// Perform a single action for an enemy (attack if visible, otherwise patrol or search)
 void enemy_act(Enemy *e, Player *p, Map *map, Enemy *all_enemies, int enemy_count) {
   if (!e->alive)
     return;
@@ -187,14 +264,37 @@ void enemy_act(Enemy *e, Player *p, Map *map, Enemy *all_enemies, int enemy_coun
   if (combat_has_effect(e->effects, e->effect_count, EFFECT_STUN))
     return;
 
-  // Check if adjacent to player - attack
-  if (can_see_player(e, p)) {
+  int can_see = can_see_player(e, p, map);
+
+  // If we can see the player, update alert state and last known position
+  if (can_see) {
+    e->alert = 1;
+    e->last_known_x = p->position.x;
+    e->last_known_y = p->position.y;
+  }
+
+  // Attack if adjacent to player
+  if (can_see && can_see_entity(map, e->position.x, e->position.y, p->position.x, p->position.y, 1)) {
     combat_enemy_attack(e, p);
+    propagate_alert(e, all_enemies, enemy_count);
     return;
   }
 
-  // Otherwise, move toward player
-  enemy_move_toward_player(e, p, map, all_enemies, enemy_count);
+  // Move toward player if visible
+  if (can_see) {
+    enemy_move_toward_player(e, p, map, all_enemies, enemy_count);
+    propagate_alert(e, all_enemies, enemy_count);
+    return;
+  }
+
+  // If alert but can't see player, move toward last known position
+  if (e->alert) {
+    enemy_move_to_last_known(e, map, all_enemies, enemy_count);
+    return;
+  }
+
+  // Not alert - patrol randomly
+  enemy_patrol(e, map, all_enemies, enemy_count);
 }
 
 void enemy_update_all(Enemy enemies[], int count, Player *p, Map *map) {

src/main.c

@@ -4,14 +4,18 @@
 #include "enemy.h"
 #include "items.h"
 #include "map.h"
+#include "movement.h"
 #include "player.h"
 #include "raylib.h"
 #include "render.h"
 #include "rng.h"
 #include "settings.h"
+#include <ctype.h>
 #include <stddef.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
+#include <time.h>
 
 // Add message to action log
 static void add_log(GameState *gs, const char *msg) {
@@ -101,11 +105,14 @@ static void update_effects(GameState *gs) {
 
 // Initialize a new floor
 static void init_floor(GameState *gs, int floor_num) {
+  // Seed RNG with run seed combined with floor number for deterministic generation
+  rng_seed(gs->run_seed + floor_num * 54321);
+
   // Generate dungeon
   dungeon_generate(&gs->dungeon, &gs->map, floor_num);
 
   // Seed rng for this floor's content
-  rng_seed(floor_num * 54321);
+  rng_seed(gs->run_seed + floor_num * 98765);
 
   // Find spawn position
   int start_x, start_y;
@@ -117,11 +124,14 @@ static void init_floor(GameState *gs, int floor_num) {
     gs->floors_reached = 1;
   } else {
     // Move player to new floor position
-    gs->player.x = start_x;
-    gs->player.y = start_y;
+    gs->player.position.x = start_x;
+    gs->player.position.y = start_y;
   }
   gs->player.floor = floor_num;
 
+  // Calculate initial visibility
+  calculate_visibility(&gs->map, gs->player.position.x, gs->player.position.y);
+
   // Spawn enemies
   enemy_spawn(gs->enemies, &gs->enemy_count, &gs->map, &gs->player, floor_num);
 
@@ -137,7 +147,8 @@ static void tick_all_effects(GameState *gs) {
   // Player effects
   int player_effect_dmg = combat_tick_effects(&gs->player);
   if (player_effect_dmg > 0) {
-    spawn_floating_text(gs, gs->player.x * TILE_SIZE + 8, gs->player.y * TILE_SIZE, player_effect_dmg, 0);
+    spawn_floating_text(gs, gs->player.position.x * TILE_SIZE + 8, gs->player.position.y * TILE_SIZE, player_effect_dmg,
+                        0);
     gs->screen_shake = SHAKE_EFFECT_DURATION;
   }
 
@@ -155,7 +166,7 @@ static void tick_all_effects(GameState *gs) {
       continue;
     int enemy_effect_dmg = combat_tick_enemy_effects(e);
     if (enemy_effect_dmg > 0) {
-      spawn_floating_text(gs, e->x * TILE_SIZE + 8, e->y * TILE_SIZE, enemy_effect_dmg, 0);
+      spawn_floating_text(gs, e->position.x * TILE_SIZE + 8, e->position.y * TILE_SIZE, enemy_effect_dmg, 0);
     }
     if (!e->alive) {
       add_log(gs, "Enemy died from effects!");
@@ -173,7 +184,7 @@ static void post_action(GameState *gs, Enemy *attacked_enemy) {
     return;
 
   // Check if stepped on stairs
-  if (gs->map.tiles[gs->player.y][gs->player.x] == TILE_STAIRS) {
+  if (gs->map.tiles[gs->player.position.y][gs->player.position.x] == TILE_STAIRS) {
     gs->awaiting_descend = 1;
     gs->last_message = "Descend to next floor? (Y/N)";
     gs->message_timer = 120;
@@ -182,8 +193,8 @@ static void post_action(GameState *gs, Enemy *attacked_enemy) {
 
   // combat feedback - player attacked an enemy this turn
   if (attacked_enemy != NULL) {
-    int ex = attacked_enemy->x * TILE_SIZE + 8;
-    int ey = attacked_enemy->y * TILE_SIZE;
+    int ex = attacked_enemy->position.x * TILE_SIZE + 8;
+    int ey = attacked_enemy->position.y * TILE_SIZE;
 
     if (combat_was_dodged()) {
       spawn_floating_label(gs, ex, ey, LABEL_DODGE, EFFECT_NONE);
@@ -215,6 +226,9 @@ static void post_action(GameState *gs, Enemy *attacked_enemy) {
     }
   }
 
+  // Update visibility based on player's new position
+  calculate_visibility(&gs->map, gs->player.position.x, gs->player.position.y);
+
   // Enemy turns - uses speed/cooldown system
   enemy_update_all(gs->enemies, gs->enemy_count, &gs->player, &gs->map);
 
@@ -224,8 +238,8 @@ static void post_action(GameState *gs, Enemy *attacked_enemy) {
     gs->screen_shake = SHAKE_PLAYER_DAMAGE_DURATION;
     gs->damage_taken += combat_get_last_damage();
     gs->times_hit++;
-    spawn_floating_text(gs, gs->player.x * TILE_SIZE + 8, gs->player.y * TILE_SIZE, combat_get_last_damage(),
-                        combat_was_critical());
+    spawn_floating_text(gs, gs->player.position.x * TILE_SIZE + 8, gs->player.position.y * TILE_SIZE,
+                        combat_get_last_damage(), combat_was_critical());
   }
 
   // Set message and check game over
@@ -246,6 +260,7 @@ static int handle_stun_turn(GameState *gs) {
   if (gs->game_over)
     return 1;
   enemy_update_all(gs->enemies, gs->enemy_count, &gs->player, &gs->map);
+  calculate_visibility(&gs->map, gs->player.position.x, gs->player.position.y);
   if (gs->player.hp <= 0)
     gs->game_over = 1;
   gs->last_message = "You are stunned!";
@@ -388,7 +403,7 @@ static int handle_movement_input(GameState *gs) {
 
   // Check for manual item pickup (G key)
   if (IsKeyPressed(KEY_G)) {
-    Item *item = get_item_at_floor(gs->items, gs->item_count, gs->player.x, gs->player.y);
+    Item *item = get_item_at_floor(gs->items, gs->item_count, gs->player.position.x, gs->player.position.y);
     if (item != NULL) {
       if (player_pickup(&gs->player, item)) {
         gs->items_collected++;
@@ -417,38 +432,45 @@ static int handle_movement_input(GameState *gs) {
     }
   }
 
-  // Movement: use IsKeyDown for held-key repeat
-  int dx = 0, dy = 0;
-  if (IsKeyDown(KEY_W) || IsKeyDown(KEY_UP))
-    dy = -1;
-  else if (IsKeyDown(KEY_S) || IsKeyDown(KEY_DOWN))
-    dy = 1;
-  else if (IsKeyDown(KEY_A) || IsKeyDown(KEY_LEFT))
-    dx = -1;
-  else if (IsKeyDown(KEY_D) || IsKeyDown(KEY_RIGHT))
-    dx = 1;
 
-  if (dx == 0 && dy == 0)
+  Vec2 direction = {0, 0};
+  if (IsKeyDown(KEY_W) || IsKeyDown(KEY_UP))
+    direction.y = -1;
+  else if (IsKeyDown(KEY_S) || IsKeyDown(KEY_DOWN))
+    direction.y = 1;
+  else if (IsKeyDown(KEY_A) || IsKeyDown(KEY_LEFT))
+    direction.x = -1;
+  else if (IsKeyDown(KEY_D) || IsKeyDown(KEY_RIGHT))
+    direction.x = 1;
+
+  if (direction.x == 0 && direction.y == 0)
     return 0;
 
   // Reset combat event before player acts
   combat_reset_event();
 
-  int new_x = gs->player.x + dx;
-  int new_y = gs->player.y + dy;
+
+  int new_x = gs->player.position.x + direction.x;
+  int new_y = gs->player.position.y + direction.y;
+
+  Enemy *target = NULL;
   int action = 0;
 
-  // Attack enemy at target tile, or move into it
-  Enemy *target = player_find_enemy_at(gs->enemies, gs->enemy_count, new_x, new_y);
-  if (target != NULL) {
-    player_attack(&gs->player, target);
+  MoveResult result =
+      try_move_entity(&gs->player.position, direction, &gs->map, &gs->player, gs->enemies, gs->enemy_count, true);
+  if (result == MOVE_RESULT_MOVED) {
+    player_on_move(&gs->player);
     action = 1;
-  } else {
-    action = player_move(&gs->player, dx, dy, &gs->map);
+  } else if (result == MOVE_RESULT_BLOCKED_ENEMY) {
+    target = player_find_enemy_at(gs->enemies, gs->enemy_count, new_x, new_y);
+    if (target != NULL) {
+      player_attack(&gs->player, target);
+      action = 1;
+    }
   }
 
   if (action)
-    post_action(gs, target);  // target is NULL on move, enemy ptr on attack
+    post_action(gs, target);
 
   return action;
 }
@@ -462,7 +484,13 @@ static int handle_input(GameState *gs) {
   // Check for restart (works during game over)
   if (IsKeyPressed(KEY_R) && gs->game_over) {
     memset(gs, 0, sizeof(GameState));
+    // Generate a new random seed for the new run
+    gs->run_seed = (unsigned int)time(NULL);
     init_floor(gs, 1);
+    // Update window title with new seed
+    char title[128];
+    snprintf(title, sizeof(title), "Roguelike - Seed: %u", gs->run_seed);
+    SetWindowTitle(title);
     return 0;
   }
 
@@ -492,12 +520,19 @@ void load_audio_assets(GameState *gs) {
 }
 
 // Main game loop
-static void game_loop(void) {
+static void game_loop(unsigned int run_seed) {
   GameState gs;
   memset(&gs, 0, sizeof(GameState));
+<<<<<<< HEAD
+  gs.run_seed = run_seed;
+=======
+  // load external assets
+  // sound
+>>>>>>> acdbc9c (font: squash commit into main)
   load_audio_assets(&gs);
+  // font
+  Font fontTTF = LoadFontEx("./assets/fonts/Tomorrow_Night.ttf", 24, NULL, 0);
   // Initialize first floor
-  rng_seed(12345);
   init_floor(&gs, 1);
 
   // Disable esc to exit
@@ -517,10 +552,16 @@ static void game_loop(void) {
         break;
       if (IsKeyPressed(KEY_R)) {
         memset(&gs, 0, sizeof(GameState));
+        // Generate a new random seed for the new run
+        gs.run_seed = (unsigned int)time(NULL);
         gs.game_over = 0;
         gs.game_won = 0;
         load_audio_assets(&gs);
         init_floor(&gs, 1);
+        // Update window title with new seed
+        char title[128];
+        snprintf(title, sizeof(title), "Roguelike - Seed: %u", gs.run_seed);
+        SetWindowTitle(title);
       }
     }
 
@@ -541,28 +582,31 @@ static void game_loop(void) {
     cam.offset = (Vector2){(float)gs.shake_x, (float)gs.shake_y};
     BeginMode2D(cam);
     render_map(&gs.map);
-    render_items(gs.items, gs.item_count);
-    render_enemies(gs.enemies, gs.enemy_count);
+    render_items(gs.items, gs.item_count, gs.map.visible);
+    render_enemies(gs.enemies, gs.enemy_count, gs.map.visible);
     render_player(&gs.player);
     EndMode2D();
 
     // Floating texts follow world shake
     render_floating_texts(gs.floating_texts, gs.floating_count, gs.shake_x, gs.shake_y);
-    render_ui(&gs.player);
+    render_ui(&gs.player, &fontTTF);
 
     // Draw action log
-    render_action_log(gs.action_log, gs.log_count, gs.log_head);
+    render_action_log(gs.action_log, gs.log_count, gs.log_head, &fontTTF);
 
     // Draw inventory overlay if active
     if (gs.show_inventory) {
-      render_inventory_overlay(&gs.player, gs.inv_selected);
+      render_inventory_overlay(&gs.player, gs.inv_selected, &fontTTF);
     }
 
     // Draw message if any
     if (gs.last_message != NULL && gs.message_timer > 0) {
-      render_message(gs.last_message);
+      render_message(gs.last_message, &fontTTF);
     }
 
+    // Draw persistent seed display in top right
+    render_seed_display(gs.run_seed);
+
     // Draw game over screen
     if (gs.game_over) {
       // Compute final score
@@ -573,7 +617,7 @@ static void game_loop(void) {
       }
       render_end_screen(gs.game_won, gs.total_kills, gs.items_collected, gs.damage_dealt, gs.damage_taken,
                         gs.crits_landed, gs.times_hit, gs.potions_used, gs.floors_reached, gs.turn_count,
-                        gs.final_score);
+                        gs.final_score, gs.run_seed, &fontTTF);
     }
 
     EndDrawing();
@@ -583,17 +627,67 @@ static void game_loop(void) {
   }
 }
 
-int main(void) {
+// Check if a string is a valid unsigned integer
+static int is_valid_uint(const char *str) {
+  if (str == NULL || *str == '\0')
+    return 0;
+  // Check for optional leading +
+  if (*str == '+')
+    str++;
+  // Must have at least one digit
+  if (*str == '\0')
+    return 0;
+  // All characters must be digits
+  for (const char *p = str; *p != '\0'; p++) {
+    if (!isdigit((unsigned char)*p))
+      return 0;
+  }
+  return 1;
+}
+
+int main(int argc, char **argv) {
+  // Parse command-line arguments
+  unsigned int run_seed = 0;
+  int seed_provided = 0;
+
+  for (int i = 1; i < argc; i++) {
+    if (strcmp(argv[i], "--seed") == 0) {
+      if (i + 1 >= argc) {
+        fprintf(stderr, "Error: --seed requires a value\n");
+        fprintf(stderr, "Usage: %s [--seed <number>]\n", argv[0]);
+        return 1;
+      }
+      const char *seed_str = argv[i + 1];
+      if (!is_valid_uint(seed_str)) {
+        fprintf(stderr, "Error: Invalid seed value: %s\n", seed_str);
+        fprintf(stderr, "Seed must be a non-negative integer\n");
+        return 1;
+      }
+      run_seed = (unsigned int)strtoul(seed_str, NULL, 10);
+      seed_provided = 1;
+      i++;  // Skip the value
+    }
+  }
+
+  // If no seed provided, generate random seed from time
+  if (!seed_provided) {
+    run_seed = (unsigned int)time(NULL);
+  }
+
+  printf("Starting game with seed: %u\n", run_seed);
+
   // Initialize audio
   audio_init();
   // Initialize random number generator
   SetRandomSeed(88435);
-  // Initialize window
-  InitWindow(SCREEN_WIDTH, SCREEN_HEIGHT + 60, "Roguelike");
+  // Initialize window with seed in title
+  char title[128];
+  snprintf(title, sizeof(title), "Roguelike - Seed: %u", run_seed);
+  InitWindow(SCREEN_WIDTH, SCREEN_HEIGHT + 60, title);
   SetTargetFPS(60);
 
   // Run game
-  game_loop();
+  game_loop(run_seed);
 
   // Cleanup
   CloseWindow();

src/map.c

@@ -1,6 +1,8 @@
 #include "map.h"
 #include "rng.h"
+#include "settings.h"
 #include "utils.h"
+#include <stdlib.h>
 #include <string.h>
 
 void map_init(Map *map) {
@@ -10,6 +12,8 @@ void map_init(Map *map) {
       map->tiles[y][x] = TILE_WALL;
     }
   }
+  memset(map->visible, 0, sizeof(map->visible));
+  memset(map->remembered, 0, sizeof(map->remembered));
   map->room_count = 0;
 }
 
@@ -166,9 +170,6 @@ void get_random_floor_tile(Map *map, int *x, int *y, int attempts) {
 }
 
 void dungeon_generate(Dungeon *d, Map *map, int floor_num) {
-  // Seed RNG with floor number for deterministic generation
-  rng_seed(floor_num * 12345);
-
   // Initialize map to all walls
   map_init(map);
 
@@ -186,3 +187,67 @@ void dungeon_generate(Dungeon *d, Map *map, int floor_num) {
   d->room_count = map->room_count;
   memcpy(d->rooms, map->rooms, sizeof(Room) * map->room_count);
 }
+
+int is_in_view_range(int x, int y, int view_x, int view_y, int range) {
+  int dx = x - view_x;
+  int dy = y - view_y;
+  return (dx * dx + dy * dy) <= (range * range);
+}
+
+static int trace_line_of_sight(const Map *map, int x1, int y1, int x2, int y2) {
+  int dx = abs(x2 - x1);
+  int dy = abs(y2 - y1);
+  int sx = (x1 < x2) ? 1 : -1;
+  int sy = (y1 < y2) ? 1 : -1;
+  int err = dx - dy;
+  int x = x1;
+  int y = y1;
+
+  while (1) {
+    if (!in_bounds(x, y, MAP_WIDTH, MAP_HEIGHT))
+      return 0;
+
+    if (x == x2 && y == y2)
+      return 1;
+
+    if (map->tiles[y][x] == TILE_WALL && !(x == x1 && y == y1))
+      return 0;
+
+    int e2 = 2 * err;
+    if (e2 > -dy) {
+      err -= dy;
+      x += sx;
+    }
+    if (e2 < dx) {
+      err += dx;
+      y += sy;
+    }
+  }
+}
+
+int has_line_of_sight(const Map *map, int x1, int y1, int x2, int y2) {
+  if (!in_bounds(x1, y1, MAP_WIDTH, MAP_HEIGHT) || !in_bounds(x2, y2, MAP_WIDTH, MAP_HEIGHT))
+    return 0;
+  return trace_line_of_sight(map, x1, y1, x2, y2);
+}
+
+int can_see_entity(const Map *map, int from_x, int from_y, int to_x, int to_y, int range) {
+  if (!is_in_view_range(to_x, to_y, from_x, from_y, range))
+    return 0;
+  return has_line_of_sight(map, from_x, from_y, to_x, to_y);
+}
+
+void calculate_visibility(Map *map, int x, int y) {
+  memset(map->visible, 0, sizeof(map->visible));
+
+  for (int ty = 0; ty < MAP_HEIGHT; ty++) {
+    for (int tx = 0; tx < MAP_WIDTH; tx++) {
+      if (is_in_view_range(tx, ty, x, y, PLAYER_VIEW_RANGE)) {
+        if (has_line_of_sight(map, x, y, tx, ty)) {
+          map->visible[ty][tx] = 1;
+          map->remembered[ty][tx] = 1;
+        }
+      }
+    }
+  }
+}

src/map.h

@@ -18,4 +18,10 @@ void map_init(Map *map);
 // Get a random floor tile position
 void get_random_floor_tile(Map *map, int *x, int *y, int attempts);
 
+// Visibility / Fog of War
+int is_in_view_range(int x, int y, int view_x, int view_y, int range);
+int has_line_of_sight(const Map *map, int x1, int y1, int x2, int y2);
+void calculate_visibility(Map *map, int x, int y);
+int can_see_entity(const Map *map, int from_x, int from_y, int to_x, int to_y, int range);
+
 #endif  // MAP_H

src/movement.c

@@ -0,0 +1,29 @@
+#include "movement.h"
+#include "enemy.h"
+#include "map.h"
+#include <stdbool.h>
+
+// Check if position is occupied by player
+static int is_player_at(Player *p, int x, int y) {
+  return (p->position.x == x && p->position.y == y);
+}
+
+MoveResult try_move_entity(Vec2 *p, Vec2 direction, Map *map, Player *player, Enemy *enemies, int enemy_count,
+                           bool moving_is_player) {
+  int new_x = p->x + direction.x;
+  int new_y = p->y + direction.y;
+
+  if (!is_floor(map, new_x, new_y))
+    return MOVE_RESULT_BLOCKED_WALL;
+
+  if (is_enemy_at(enemies, enemy_count, new_x, new_y))
+    return MOVE_RESULT_BLOCKED_ENEMY;
+  if (!moving_is_player) {
+    if (is_player_at(player, new_x, new_y))
+      return MOVE_RESULT_BLOCKED_PLAYER;
+  }
+
+  p->x = new_x;
+  p->y = new_y;
+  return MOVE_RESULT_MOVED;
+}

src/movement.h

@@ -0,0 +1,17 @@
+#ifndef MOVEMENT_H
+#define MOVEMENT_H
+
+#include "common.h"
+
+typedef enum {
+  MOVE_RESULT_MOVED,
+  MOVE_RESULT_BLOCKED_WALL,
+  MOVE_RESULT_BLOCKED_PLAYER,
+  MOVE_RESULT_BLOCKED_ENEMY
+} MoveResult;
+
+// Attempts to move entity in a given direction. Returns outcome of action.
+MoveResult try_move_entity(Vec2 *p, Vec2 direction, Map *map, Player *player, Enemy *enemies, int enemy_count,
+                           bool moving_is_player);
+
+#endif  // MOVEMENT_H

src/player.c

@@ -2,15 +2,12 @@
 #include "combat.h"
 #include "common.h"
 #include "items.h"
-#include "map.h"
 #include "settings.h"
-#include "utils.h"
-#include <stdlib.h>
 #include <string.h>
 
 void player_init(Player *p, int x, int y) {
-  p->x = x;
-  p->y = y;
+  p->position.x = x;
+  p->position.y = y;
   p->hp = PLAYER_BASE_HP;
   p->max_hp = PLAYER_BASE_HP;
   p->attack = PLAYER_BASE_ATTACK;
@@ -43,36 +40,20 @@ Enemy *player_find_enemy_at(Enemy *enemies, int count, int x, int y) {
   if (count > MAX_ENEMIES)
     count = MAX_ENEMIES;
   for (int i = 0; i < count; i++) {
-    if (enemies[i].alive && enemies[i].x == x && enemies[i].y == y)
+    if (enemies[i].alive && enemies[i].position.x == x && enemies[i].position.y == y)
       return &enemies[i];
   }
   return NULL;
 }
 
-int player_move(Player *p, int dx, int dy, Map *map) {
-  int new_x = p->x + dx;
-  int new_y = p->y + dy;
-
-  // Check bounds
-  if (!in_bounds(new_x, new_y, MAP_WIDTH, MAP_HEIGHT))
-    return 0;
-
-  // Check if walkable
-  if (!is_floor(map, new_x, new_y))
-    return 0;
-
-  // Move player
-  p->x = new_x;
-  p->y = new_y;
+void player_on_move(Player *p) {
   p->step_count += 1;
-  // Regen suppressed while poisoned, bleeding, or burning
   if (p->step_count % REGEN_STEP_INTERVAL == 0 && p->hp < p->max_hp &&
       !combat_has_effect(p->effects, p->effect_count, EFFECT_POISON) &&
       !combat_has_effect(p->effects, p->effect_count, EFFECT_BLEED) &&
       !combat_has_effect(p->effects, p->effect_count, EFFECT_BURN)) {
     p->hp += 1;
   }
-  return 1;
 }
 
 void player_attack(Player *p, Enemy *e) {
@@ -228,8 +209,8 @@ int player_drop_item(Player *p, int inv_index, Item *items, int item_count) {
     if (items[i].picked_up) {
       // Place dropped item at this position
       items[i] = *item;
-      items[i].x = p->x;
-      items[i].y = p->y;
+      items[i].x = p->position.x;
+      items[i].y = p->position.y;
       items[i].picked_up = 0;
       // Remove from inventory
       player_remove_inventory_item(p, inv_index);

src/player.h

@@ -6,8 +6,8 @@
 // Initialize player at position
 void player_init(Player *p, int x, int y);
 
-// Move player to (x+dx, y+dy); returns 1 if moved, 0 if blocked
-int player_move(Player *p, int dx, int dy, Map *map);
+// Apply status effects, healing, etc
+void player_on_move(Player *p);
 
 // Find a living enemy at tile (x, y); returns NULL if none
 Enemy *player_find_enemy_at(Enemy *enemies, int count, int x, int y);

src/render.c

@@ -11,18 +11,31 @@ void render_map(const Map *map) {
   for (int y = 0; y < MAP_HEIGHT; y++) {
     for (int x = 0; x < MAP_WIDTH; x++) {
       Rectangle rect = {(float)(x * TILE_SIZE), (float)(y * TILE_SIZE), (float)TILE_SIZE, (float)TILE_SIZE};
+      int visible = map->visible[y][x];
+      int remembered = map->remembered[y][x];
+
+      if (!visible && !remembered) {
+        DrawRectangleRec(rect, (Color){5, 5, 10, 255});
+        continue;
+      }
+
+      Color wall_color = visible ? DARKGRAY : (Color){25, 25, 30, 255};
+      Color floor_color = visible ? BLACK : (Color){15, 15, 20, 255};
+      Color stairs_color = visible ? (Color){100, 100, 100, 255} : (Color){40, 40, 45, 255};
 
       switch (map->tiles[y][x]) {
       case TILE_WALL:
-        DrawRectangleRec(rect, DARKGRAY);
+        DrawRectangleRec(rect, wall_color);
         break;
       case TILE_FLOOR:
-        DrawRectangleRec(rect, BLACK);
+        DrawRectangleRec(rect, floor_color);
         break;
       case TILE_STAIRS:
-        DrawRectangleRec(rect, (Color){100, 100, 100, 255});
-        // Draw stairs marker
-        DrawText(">", x * TILE_SIZE + 4, y * TILE_SIZE + 2, 12, WHITE);
+        DrawRectangleRec(rect, stairs_color);
+        if (visible)
+          DrawText(">", x * TILE_SIZE + 4, y * TILE_SIZE + 2, 12, WHITE);
+        else
+          DrawText(">", x * TILE_SIZE + 4, y * TILE_SIZE + 2, 12, (Color){60, 60, 65, 255});
         break;
       }
     }
@@ -30,17 +43,20 @@ void render_map(const Map *map) {
 }
 
 void render_player(const Player *p) {
-  Rectangle rect = {(float)(p->x * TILE_SIZE), (float)(p->y * TILE_SIZE), (float)TILE_SIZE, (float)TILE_SIZE};
+  Rectangle rect = {(float)(p->position.x * TILE_SIZE), (float)(p->position.y * TILE_SIZE), (float)TILE_SIZE,
+                    (float)TILE_SIZE};
   DrawRectangleRec(rect, BLUE);
 }
 
-void render_enemies(const Enemy *enemies, int count) {
+void render_enemies(const Enemy *enemies, int count, const unsigned char visible[MAP_HEIGHT][MAP_WIDTH]) {
   for (int i = 0; i < count; i++) {
     if (!enemies[i].alive)
       continue;
+    if (!visible[enemies[i].position.y][enemies[i].position.x])
+      continue;
 
-    Rectangle rect = {(float)(enemies[i].x * TILE_SIZE), (float)(enemies[i].y * TILE_SIZE), (float)TILE_SIZE,
-                      (float)TILE_SIZE};
+    Rectangle rect = {(float)(enemies[i].position.x * TILE_SIZE), (float)(enemies[i].position.y * TILE_SIZE),
+                      (float)TILE_SIZE, (float)TILE_SIZE};
 
     // Different colors based on enemy type
     Color enemy_color;
@@ -72,17 +88,19 @@ void render_enemies(const Enemy *enemies, int count) {
         bar_color = (Color){200, 180, 40, 255};  // yellow
       else
         bar_color = (Color){200, 60, 60, 255};  // red
-      Rectangle hp_bar = {(float)(enemies[i].x * TILE_SIZE), (float)(enemies[i].y * TILE_SIZE - 4), (float)hp_pixels,
-                          3};
+      Rectangle hp_bar = {(float)(enemies[i].position.x * TILE_SIZE), (float)(enemies[i].position.y * TILE_SIZE - 4),
+                          (float)hp_pixels, 3};
       DrawRectangleRec(hp_bar, bar_color);
     }
   }
 }
 
-void render_items(const Item *items, int count) {
+void render_items(const Item *items, int count, const unsigned char visible[MAP_HEIGHT][MAP_WIDTH]) {
   for (int i = 0; i < count; i++) {
     if (items[i].picked_up)
       continue;
+    if (!visible[items[i].y][items[i].x])
+      continue;
 
     Rectangle rect = {(float)(items[i].x * TILE_SIZE), (float)(items[i].y * TILE_SIZE), (float)TILE_SIZE,
                       (float)TILE_SIZE};
@@ -108,7 +126,7 @@ void render_items(const Item *items, int count) {
   }
 }
 
-void render_ui(const Player *p) {
+void render_ui(const Player *p, Font *font) {
   // HUD Panel
   const int hud_y = MAP_HEIGHT * TILE_SIZE;
   const int hud_height = 60;
@@ -152,7 +170,7 @@ void render_ui(const Player *p) {
   int bar_height = 16;
 
   // HP Label, above bar
-  DrawText("HP", bar_x, bar_y - 11, 9, text_dim);
+  DrawTextEx(*font, "HP", (Vector2){bar_x, bar_y - 17}, BIG_FONT, NAR_CHAR_SPACE, text_dim);
 
   // HP Bar background
   DrawRectangle(bar_x, bar_y, bar_width, bar_height, (Color){20, 15, 15, 255});
@@ -177,8 +195,9 @@ void render_ui(const Player *p) {
   // HP text, centered in bar
   char hp_text[32];
   snprintf(hp_text, sizeof(hp_text), "%d/%d", p->hp, p->max_hp);
-  int hp_text_w = MeasureText(hp_text, 10);
-  DrawText(hp_text, bar_x + (bar_width - hp_text_w) / 2, bar_y + 2, 10, WHITE);
+  int hp_text_w = MeasureText(hp_text, 12);
+  DrawTextEx(*font, hp_text, (Vector2){bar_x + (bar_width - hp_text_w) / 2.0f, bar_y + 2}, MEDIUM_FONT,
+             SMALL_CHAR_SPACE, WHITE);
 
   // Status effects
   int effect_x = bar_x;
@@ -213,7 +232,7 @@ void render_ui(const Player *p) {
     if (p->effects[i].duration > 0) {
       char eff_text[16];
       snprintf(eff_text, sizeof(eff_text), "%s%d", eff_label, p->effects[i].duration);
-      DrawText(eff_text, effect_x, effect_y, 9, eff_color);
+      DrawTextEx(*font, eff_text, (Vector2){effect_x, effect_y}, SMALL_FONT, NAR_CHAR_SPACE, eff_color);
       effect_x += 28;
     }
   }
@@ -225,65 +244,68 @@ void render_ui(const Player *p) {
   // Floor
   char floor_text[16];
   snprintf(floor_text, sizeof(floor_text), "F%d", p->floor);
-  DrawText(floor_text, stats_x, stats_y, 14, text_bright);
-  DrawText("Floor", stats_x, stats_y + 16, 9, text_dim);
+  DrawTextEx(*font, floor_text, (Vector2){stats_x, stats_y}, 16, NORM_CHAR_SPACE, text_bright);
+  DrawTextEx(*font, "Floor", (Vector2){stats_x, stats_y + 16}, 12, NAR_CHAR_SPACE, text_dim);
 
   // ATK
   char atk_text[16];
   snprintf(atk_text, sizeof(atk_text), "%d", p->attack);
-  DrawText(atk_text, stats_x + stat_spacing, stats_y, 14, YELLOW);
-  DrawText("ATK", stats_x + stat_spacing, stats_y + 16, 9, text_dim);
+  DrawTextEx(*font, atk_text, (Vector2){stats_x + stat_spacing, stats_y}, 16, NORM_CHAR_SPACE, YELLOW);
+  DrawTextEx(*font, "ATK", (Vector2){stats_x + stat_spacing, stats_y + 16}, 12, NAR_CHAR_SPACE, text_dim);
 
   // DEF
   char def_text[16];
   snprintf(def_text, sizeof(def_text), "%d", p->defense);
-  DrawText(def_text, stats_x + stat_spacing * 2, stats_y, 14, (Color){100, 150, 255, 255});
-  DrawText("DEF", stats_x + stat_spacing * 2, stats_y + 16, 9, text_dim);
+  DrawTextEx(*font, def_text, (Vector2){stats_x + stat_spacing * 2, stats_y}, 16, NORM_CHAR_SPACE,
+             (Color){100, 150, 255, 255});
+  DrawTextEx(*font, "DEF", (Vector2){stats_x + stat_spacing * 2, stats_y + 16}, 12, NAR_CHAR_SPACE, text_dim);
 
   int equip_x = section2_end + 15;
   int equip_y = hud_y + 8;
 
   // Weapon slot
-  DrawText("WEAPON", equip_x, equip_y, 9, text_dim);
+  DrawTextEx(*font, "WEAPON", (Vector2){equip_x, equip_y}, MEDIUM_FONT, NAR_CHAR_SPACE, text_dim);
   if (p->has_weapon) {
     const char *weapon_name = item_get_name(&p->equipped_weapon);
     if (weapon_name) {
       char weapon_text[64];
       snprintf(weapon_text, sizeof(weapon_text), "%s +%d [%s]", weapon_name, p->equipped_weapon.power,
                dmg_class_get_short(p->equipped_weapon.dmg_class));
-      DrawText(weapon_text, equip_x, equip_y + 11, 10, (Color){255, 220, 100, 255});
+      DrawTextEx(*font, weapon_text, (Vector2){equip_x, equip_y + 11}, 10, NAR_CHAR_SPACE, (Color){255, 220, 100, 255});
     }
   } else {
-    DrawText("None [IMP]", equip_x, equip_y + 11, 10, (Color){80, 75, 70, 255});
+    DrawTextEx(*font, "None [IMP]", (Vector2){equip_x, equip_y + 11}, 10, NAR_CHAR_SPACE, (Color){80, 75, 70, 255});
   }
 
   // Armor slot
-  DrawText("ARMOR", equip_x, equip_y + 26, 9, text_dim);
+  DrawTextEx(*font, "ARMOR", (Vector2){equip_x, equip_y + 26}, MEDIUM_FONT, NAR_CHAR_SPACE, text_dim);
   if (p->has_armor) {
     const char *armor_name = item_get_name(&p->equipped_armor);
     if (armor_name) {
       char armor_text[48];
       snprintf(armor_text, sizeof(armor_text), "%s +%d", armor_name, p->equipped_armor.power);
-      DrawText(armor_text, equip_x, equip_y + 37, 10, (Color){100, 150, 255, 255});
+      DrawTextEx(*font, armor_text, (Vector2){equip_x, equip_y + 37}, 10, NAR_CHAR_SPACE, (Color){100, 150, 255, 255});
     }
   } else {
-    DrawText("None", equip_x, equip_y + 37, 10, (Color){80, 75, 70, 255});
+    DrawTextEx(*font, "None", (Vector2){equip_x, equip_y + 37}, 10, NAR_CHAR_SPACE, (Color){80, 75, 70, 255});
   }
 
   int ctrl_x = section3_end + 20;
   int ctrl_y = hud_y + 14;
 
-  DrawText("[WASD] Move   [G] Pickup   [I] Inventory   [U] Use", ctrl_x, ctrl_y, 11, (Color){139, 119, 89, 255});
-  DrawText("[E] Equip   [D] Drop   [Q] Quit", ctrl_x, ctrl_y + 16, 11, (Color){139, 119, 89, 255});
+  DrawTextEx(*font, "[WASD] Move   [G] Pickup   [I] Inventory   [U] Use", (Vector2){ctrl_x, ctrl_y}, MEDIUM_FONT,
+             MED_CHAR_SPACE, (Color){139, 119, 89, 255});
+  DrawTextEx(*font, "[E] Equip   [D] Drop   [Q] Quit", (Vector2){ctrl_x, ctrl_y + 16}, MEDIUM_FONT, MED_CHAR_SPACE,
+             (Color){139, 119, 89, 255});
 
   // INV count in top-right corner of HUD
   char inv_text[16];
   snprintf(inv_text, sizeof(inv_text), "INV: %d/%d", p->inventory_count, MAX_INVENTORY);
   int inv_width = MeasureText(inv_text, 10);
-  DrawText(inv_text, SCREEN_WIDTH - inv_width - 10, hud_y + 5, 10, GREEN);
+  DrawTextEx(*font, inv_text, (Vector2){SCREEN_WIDTH - inv_width - 10, hud_y + 5}, 10, NAR_CHAR_SPACE, GREEN);
 }
 
-void render_action_log(const char log[5][128], int count, int head) {
+void render_action_log(const char log[5][128], int count, int head, Font *font) {
   // Roguelike scroll/log panel styling
   const int log_width = 250;
   const int log_height = 90;
@@ -305,7 +327,8 @@ void render_action_log(const char log[5][128], int count, int head) {
 
   // Title bar
   DrawRectangle(log_x + 4, log_y + 4, log_width - 8, 16, (Color){30, 25, 20, 255});
-  DrawText("MESSAGE LOG", log_x + 8, log_y + 6, 10, (Color){180, 160, 130, 255});
+  DrawTextEx(*font, "MESSAGE LOG", (Vector2){log_x + 8, log_y + 6}, MEDIUM_FONT, NAR_CHAR_SPACE,
+             (Color){180, 160, 130, 255});
 
   // Separator line under title
   DrawLine(log_x + 4, log_y + 22, log_x + log_width - 5, log_y + 22, log_border_dark);
@@ -330,15 +353,15 @@ void render_action_log(const char log[5][128], int count, int head) {
       } else {
         text_color = (Color){120, 110, 100, 200};  // oldest: dim
       }
-      DrawText(log[idx], text_x, text_start_y + i * line_height, 10, text_color);
+      DrawTextEx(*font, log[idx], (Vector2){text_x, text_start_y + i * line_height}, 10, NAR_CHAR_SPACE, text_color);
     }
   }
 }
 
-void render_inventory_overlay(const Player *p, int selected) {
+void render_inventory_overlay(const Player *p, int selected, Font *font) {
   // Overlay dimensions
   int ov_width = 360;
-  int ov_height = 300;
+  int ov_height = 320;
   Rectangle overlay = {(float)(SCREEN_WIDTH - ov_width) / 2, (float)(SCREEN_HEIGHT - ov_height) / 2 - 60,
                        (float)ov_width, (float)ov_height};
   DrawRectangleRec(overlay, (Color){12, 12, 12, 252});
@@ -347,12 +370,14 @@ void render_inventory_overlay(const Player *p, int selected) {
   // Title
   const char *title = "INVENTORY";
   int title_w = MeasureText(title, 24);
-  DrawText(title, overlay.x + (overlay.width - title_w) / 2, overlay.y + 12, 24, WHITE);
+  Vector2 t_w = MeasureTextEx(*font, title, 30, NORM_CHAR_SPACE);
+  DrawTextEx(*font, title, (Vector2){overlay.x + (overlay.width - t_w.x) / 2, overlay.y + 10}, HUGE_FONT,
+             NORM_CHAR_SPACE, WHITE);
 
   // Draw each inventory slot
   char slot_text[64];
   int row_height = 26;
-  int start_y = overlay.y + 50;
+  int start_y = overlay.y + 40;
 
   for (int i = 0; i < MAX_INVENTORY; i++) {
     int y_pos = start_y + (i * row_height);
@@ -369,7 +394,8 @@ void render_inventory_overlay(const Player *p, int selected) {
 
       // Slot number
       snprintf(slot_text, sizeof(slot_text), "%d.", i + 1);
-      DrawText(slot_text, overlay.x + 16, y_pos + 4, 14, (Color){80, 80, 80, 255});
+      DrawTextEx(*font, slot_text, (Vector2){overlay.x + 16, y_pos + 4}, MEDIUM_FONT, SMALL_CHAR_SPACE,
+                 (Color){80, 80, 80, 255});
 
       // Item name
       const char *name = item_get_name(item);
@@ -377,31 +403,31 @@ void render_inventory_overlay(const Player *p, int selected) {
         Color name_color = (item->type == ITEM_POTION)   ? (Color){255, 140, 140, 255}
                            : (item->type == ITEM_WEAPON) ? (Color){255, 255, 140, 255}
                                                          : (Color){140, 140, 255, 255};
-        DrawText(name, overlay.x + 45, y_pos + 4, 14, name_color);
+        DrawTextEx(*font, name, (Vector2){overlay.x + 45, y_pos + 4}, 14, NORM_CHAR_SPACE, name_color);
       }
-
       // Power
       snprintf(slot_text, sizeof(slot_text), "+%d", item->power);
-      DrawText(slot_text, overlay.x + 150, y_pos + 4, 14, YELLOW);
+      DrawTextEx(*font, slot_text, (Vector2){overlay.x + 150, y_pos + 4}, 14, NORM_CHAR_SPACE, YELLOW);
 
       // Action
       if (item->type == ITEM_POTION) {
-        DrawText("[U]se", overlay.x + 200, y_pos + 4, 14, GREEN);
+        DrawTextEx(*font, "[U]se", (Vector2){overlay.x + 200, y_pos + 4}, 14, NORM_CHAR_SPACE, GREEN);
       } else {
-        DrawText("[E]quip [D]rop", overlay.x + 200, y_pos + 4, 14, GOLD);
+        DrawTextEx(*font, "[E]quip [D]rop", (Vector2){overlay.x + 200, y_pos + 4}, 14, NORM_CHAR_SPACE, GOLD);
       }
     } else {
       // Empty slot
       snprintf(slot_text, sizeof(slot_text), "%d.", i + 1);
-      DrawText(slot_text, overlay.x + 16, y_pos + 4, 14, (Color){40, 40, 40, 255});
+      DrawTextEx(*font, slot_text, (Vector2){overlay.x + 16, y_pos + 4}, MEDIUM_FONT, SMALL_CHAR_SPACE,
+                 (Color){40, 40, 40, 255});
     }
   }
 
   // Instructions at bottom
   const char *hint = "[1-0] Select   [E] Equip   [U] Use   [D] Drop   [I/ESC] Close";
-  int hint_w = MeasureText(hint, 12);
-  DrawText(hint, overlay.x + (overlay.width - hint_w) / 2, overlay.y + overlay.height - 22, 12,
-           (Color){65, 65, 65, 255});
+  Vector2 hint_w = MeasureTextEx(*font, hint, NORM_FONT, NAR_CHAR_SPACE);
+  DrawTextEx(*font, hint, (Vector2){overlay.x + (overlay.width - hint_w.x) / 2, overlay.y + overlay.height - 22},
+             NORM_FONT, NAR_CHAR_SPACE, (Color){80, 80, 80, 255});
 }
 
 static Color label_color(FloatingText *ft, int alpha) {
@@ -489,7 +515,7 @@ void render_floating_texts(FloatingText *texts, int count, int shake_x, int shak
 }
 
 void render_end_screen(int is_victory, int kills, int items, int damage_dealt, int damage_taken, int crits,
-                       int times_hit, int potions, int floors, int turns, int score) {
+                       int times_hit, int potions, int floors, int turns, int score, unsigned int seed, Font *font) {
   // Semi-transparent overlay
   Rectangle overlay = {0, 0, (float)SCREEN_WIDTH, (float)SCREEN_HEIGHT};
   DrawRectangleRec(overlay, (Color){0, 0, 0, 210});
@@ -499,13 +525,14 @@ void render_end_screen(int is_victory, int kills, int items, int damage_dealt, i
   int title_font_size = 60;
   Color title_color = is_victory ? GOLD : RED;
   int title_width = MeasureText(title, title_font_size);
-  DrawText(title, (SCREEN_WIDTH - title_width) / 2, 30, title_font_size, title_color);
+  DrawTextEx(*font, title, (Vector2){(SCREEN_WIDTH - title_width) / 2.0f, 30}, title_font_size, NORM_CHAR_SPACE,
+             title_color);
 
   // Stats box
   int box_x = SCREEN_WIDTH / 2 - 200;
   int box_y = 110;
   int box_w = 400;
-  int box_h = 320;
+  int box_h = 350;
   DrawRectangle(box_x, box_y, box_w, box_h, (Color){20, 20, 20, 240});
   DrawRectangleLines(box_x, box_y, box_w, box_h, (Color){100, 100, 100, 255});
 
@@ -519,71 +546,80 @@ void render_end_screen(int is_victory, int kills, int items, int damage_dealt, i
   Color value_color = WHITE;
 
   // Column 1
-  DrawText("Kills:", col1_x, row_y, 18, label_color);
+  DrawTextEx(*font, "Kills:", (Vector2){col1_x, row_y}, 18, NORM_CHAR_SPACE, label_color);
   snprintf(line, sizeof(line), "%d", kills);
-  DrawText(line, col1_x + 80, row_y, 18, value_color);
+  DrawTextEx(*font, line, (Vector2){col1_x + 80, row_y}, 18, NORM_CHAR_SPACE, value_color);
   row_y += line_height;
 
-  DrawText("Items:", col1_x, row_y, 18, label_color);
+  DrawTextEx(*font, "Items:", (Vector2){col1_x, row_y}, 18, NORM_CHAR_SPACE, label_color);
   snprintf(line, sizeof(line), "%d", items);
-  DrawText(line, col1_x + 80, row_y, 18, value_color);
+  DrawTextEx(*font, line, (Vector2){col1_x + 80, row_y}, 18, NORM_CHAR_SPACE, value_color);
   row_y += line_height;
 
-  DrawText("Damage Dealt:", col1_x, row_y, 18, label_color);
+  DrawTextEx(*font, "Damage Dealt:", (Vector2){col1_x, row_y}, 18, NORM_CHAR_SPACE, label_color);
   snprintf(line, sizeof(line), "%d", damage_dealt);
-  DrawText(line, col1_x + 140, row_y, 18, value_color);
+  DrawTextEx(*font, line, (Vector2){col1_x + 140, row_y}, 18, NORM_CHAR_SPACE, value_color);
   row_y += line_height;
 
-  DrawText("Damage Taken:", col1_x, row_y, 18, label_color);
+  DrawTextEx(*font, "Damage Taken:", (Vector2){col1_x, row_y}, 18, NORM_CHAR_SPACE, label_color);
   snprintf(line, sizeof(line), "%d", damage_taken);
-  DrawText(line, col1_x + 140, row_y, 18, value_color);
+  DrawTextEx(*font, line, (Vector2){col1_x + 140, row_y}, 18, NORM_CHAR_SPACE, value_color);
   row_y += line_height;
 
-  DrawText("Crits:", col1_x, row_y, 18, label_color);
+  DrawTextEx(*font, "Crits:", (Vector2){col1_x, row_y}, 18, NORM_CHAR_SPACE, label_color);
   snprintf(line, sizeof(line), "%d", crits);
-  DrawText(line, col1_x + 80, row_y, 18, value_color);
+  DrawTextEx(*font, line, (Vector2){col1_x + 80, row_y}, 18, NORM_CHAR_SPACE, value_color);
   row_y += line_height;
 
-  DrawText("Times Hit:", col1_x, row_y, 18, label_color);
+  DrawTextEx(*font, "Times Hit:", (Vector2){col1_x, row_y}, 18, NORM_CHAR_SPACE, label_color);
   snprintf(line, sizeof(line), "%d", times_hit);
-  DrawText(line, col1_x + 80, row_y, 18, value_color);
+  DrawTextEx(*font, line, (Vector2){col1_x + 80, row_y}, 18, NORM_CHAR_SPACE, value_color);
   row_y += line_height;
 
   // Column 2
   int col2_row_y = box_y + 20;
-  DrawText("Potions:", col2_x, col2_row_y, 18, label_color);
+  DrawTextEx(*font, "Potions:", (Vector2){col2_x, col2_row_y}, 18, NORM_CHAR_SPACE, label_color);
   snprintf(line, sizeof(line), "%d", potions);
-  DrawText(line, col2_x + 80, col2_row_y, 18, value_color);
+  DrawTextEx(*font, line, (Vector2){col2_x + 80, col2_row_y}, 18, NORM_CHAR_SPACE, value_color);
   col2_row_y += line_height;
 
-  DrawText("Floors:", col2_x, col2_row_y, 18, label_color);
+  DrawTextEx(*font, "Floors:", (Vector2){col2_x, col2_row_y}, 18, NORM_CHAR_SPACE, label_color);
   snprintf(line, sizeof(line), "%d", floors);
-  DrawText(line, col2_x + 80, col2_row_y, 18, value_color);
+  DrawTextEx(*font, line, (Vector2){col2_x + 80, col2_row_y}, 18, NORM_CHAR_SPACE, value_color);
   col2_row_y += line_height;
 
-  DrawText("Turns:", col2_x, col2_row_y, 18, label_color);
+  DrawTextEx(*font, "Turns:", (Vector2){col2_x, col2_row_y}, 18, NORM_CHAR_SPACE, label_color);
   snprintf(line, sizeof(line), "%d", turns);
-  DrawText(line, col2_x + 80, col2_row_y, 18, value_color);
+  DrawTextEx(*font, line, (Vector2){col2_x + 80, col2_row_y}, 18, NORM_CHAR_SPACE, value_color);
   col2_row_y += line_height;
 
   // Score: placed below the last row of the longer column (6 items, row_y is already there)
   row_y += 10;
-  DrawText("SCORE:", col1_x, row_y, 22, GOLD);
+  DrawTextEx(*font, "SCORE:", (Vector2){col1_x, row_y}, 22, NORM_CHAR_SPACE, GOLD);
   snprintf(line, sizeof(line), "%d", score);
-  DrawText(line, col1_x + 90, row_y, 22, GOLD);
+  DrawTextEx(*font, line, (Vector2){col1_x + 90, col2_row_y}, 22, NORM_CHAR_SPACE, GOLD);
+  row_y += 35;
 
+  // Seed display
+  DrawTextEx(*font, "SEED:", (Vector2){col1_x, row_y}, 18, SMALL_CHAR_SPACE, label_color);
+  snprintf(line, sizeof(line), "%u", seed);
+  DrawTextEx(*font, line, (Vector2){col1_x + 60, row_y}, 18, SMALL_CHAR_SPACE, END_SEED);
+
+  // Instructions
   if (is_victory) {
     const char *subtitle = "Press R to play again or Q to quit";
     int sub_width = MeasureText(subtitle, 20);
-    DrawText(subtitle, (SCREEN_WIDTH - sub_width) / 2, SCREEN_HEIGHT - 50, 20, LIGHTGRAY);
+    DrawTextEx(*font, subtitle, (Vector2){(SCREEN_WIDTH - sub_width) / 2.0f, SCREEN_HEIGHT - 50}, 20, NORM_CHAR_SPACE,
+               LIGHTGRAY);
   } else {
     const char *subtitle = "Press R to restart or Q to quit";
     int sub_width = MeasureText(subtitle, 20);
-    DrawText(subtitle, (SCREEN_WIDTH - sub_width) / 2, SCREEN_HEIGHT - 50, 20, LIGHTGRAY);
+    DrawTextEx(*font, subtitle, (Vector2){(SCREEN_WIDTH - sub_width) / 2.0f, SCREEN_HEIGHT - 50}, 20, NORM_CHAR_SPACE,
+               LIGHTGRAY);
   }
 }
 
-void render_message(const char *message) {
+void render_message(const char *message, Font *font) {
   if (message == NULL)
     return;
 
@@ -652,5 +688,20 @@ void render_message(const char *message) {
     text_y = (int)box_y + padding_y;
   }
 
-  DrawText(message, text_x, text_y, font_size, WHITE);
+  DrawTextEx(*font, message, (Vector2){text_x, text_y}, font_size, NORM_CHAR_SPACE, WHITE);
+}
+
+void render_seed_display(unsigned int seed) {
+  char seed_text[64];
+  snprintf(seed_text, sizeof(seed_text), "Seed: %u", seed);
+
+  const int font_size = 14;
+  int text_width = MeasureText(seed_text, font_size);
+
+  // Position at top right with padding
+  int x = SCREEN_WIDTH - text_width - 10;
+  int y = 5;
+
+  // Draw with non-obstructive dim text color
+  DrawText(seed_text, x, y, font_size, TEXT_DIM);
 }

src/render.h

@@ -1,3 +1,4 @@
+
 #ifndef RENDER_H
 #define RENDER_H
 
@@ -68,6 +69,7 @@
 #define END_OVERLAY (Color){0, 0, 0, 210}
 #define END_BOX_BG (Color){20, 20, 20, 240}
 #define END_BOX_BORDER (Color){100, 100, 100, 255}
+#define END_SEED (Color){150, 200, 255, 255}
 
 // Portrait placeholder
 // FIXME: remove when player sprites are available
@@ -80,28 +82,31 @@ void render_map(const Map *map);
 void render_player(const Player *p);
 
 // Render all enemies
-void render_enemies(const Enemy *enemies, int count);
+void render_enemies(const Enemy *enemies, int count, const unsigned char visible[MAP_HEIGHT][MAP_WIDTH]);
 
 // Render all items
-void render_items(const Item *items, int count);
+void render_items(const Item *items, int count, const unsigned char visible[MAP_HEIGHT][MAP_WIDTH]);
 
 // Render UI overlay
-void render_ui(const Player *p);
+void render_ui(const Player *p, Font *font);
 
 // Render action log (bottom left corner)
-void render_action_log(const char log[5][128], int count, int head);
+void render_action_log(const char log[5][128], int count, int head, Font *font);
 
 // Render inventory selection overlay
-void render_inventory_overlay(const Player *p, int selected);
+void render_inventory_overlay(const Player *p, int selected, Font *font);
 
 // Render floating damage text
 void render_floating_texts(FloatingText *texts, int count, int shake_x, int shake_y);
 
 // Render end screen (victory or death) with stats breakdown
 void render_end_screen(int is_victory, int kills, int items, int damage_dealt, int damage_taken, int crits,
-                       int times_hit, int potions, int floors, int turns, int score);
+                       int times_hit, int potions, int floors, int turns, int score, unsigned int seed, Font *font);
 
 // Render a message popup
-void render_message(const char *message);
+void render_message(const char *message, Font *font);
+
+// Render seed display at top right of screen
+void render_seed_display(unsigned int seed);
 
 #endif  // RENDER_H

src/settings.h

@@ -8,6 +8,21 @@
 #define SCREEN_WIDTH (MAP_WIDTH * TILE_SIZE)
 #define SCREEN_HEIGHT (MAP_HEIGHT * TILE_SIZE)
 
+// Font constants
+#define NORM_CHAR_SPACE 4.0f
+#define MED_CHAR_SPACE 2.5f
+#define SMALL_CHAR_SPACE 1.6f
+#define NAR_CHAR_SPACE 1.0f
+#define CRAMPED_CHAR_SPACE 0.5f
+
+#define TINY_FONT 8
+#define SMALL_FONT 10
+#define NORM_FONT 12
+#define MEDIUM_FONT 14
+#define LARGE_FONT 18
+#define BIG_FONT 22
+#define HUGE_FONT 30
+
 // Game Limits
 #define MAX_ENEMIES 64
 #define MAX_ITEMS 128
@@ -63,4 +78,9 @@
 // Message timer
 #define MESSAGE_TIMER_DURATION 60
 
+// Visibility / Fog of War
+#define PLAYER_VIEW_RANGE 8
+#define ENEMY_VIEW_RANGE 6
+#define ENEMY_PATROL_MOVE_CHANCE 30
+
 #endif  // SETTINGS_H