initial commit

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Ie3b66d17f6f660c9b9a719210bd86f9f6a6a6964

src/items.c

@@ -0,0 +1,126 @@
+#include "common.h"
+#include "map.h"
+#include "rng.h"
+#include <stddef.h>
+
+void item_spawn(Item items[], int *count, Map *map, int floor) {
+  *count = 0;
+
+  // Number of items scales with floor
+  int num_items = 2 + rng_int(0, 3);
+  if (num_items > MAX_ITEMS)
+    num_items = MAX_ITEMS;
+
+  for (int i = 0; i < num_items; i++) {
+    // Find random floor position
+    int ix, iy;
+    get_random_floor_tile(map, &ix, &iy, 50);
+
+    // Don't spawn on other items
+    int occupied = 0;
+    for (int j = 0; j < *count; j++) {
+      if (items[j].x == ix && items[j].y == iy) {
+        occupied = 1;
+        break;
+      }
+    }
+    if (occupied)
+      continue;
+
+    // Create item
+    Item item;
+    item.x = ix;
+    item.y = iy;
+    item.floor = floor;
+    item.picked_up = 0;
+
+    // Item type distribution
+    int type_roll = rng_int(0, 99);
+
+    if (type_roll < 50) {
+      // 50% chance for potion
+      item.type = ITEM_POTION;
+      item.power = 5 + rng_int(0, floor * 2); // healing: 5 + 0-2*floor
+    } else if (type_roll < 80) {
+      // 30% chance for weapon
+      item.type = ITEM_WEAPON;
+      item.power = 1 + rng_int(0, floor); // attack bonus: 1 + 0-floor
+    } else {
+      // 20% chance for armor
+      item.type = ITEM_ARMOR;
+      item.power = 1 + rng_int(0, floor / 2); // defense bonus
+    }
+
+    items[i] = item;
+    (*count)++;
+  }
+}
+
+// Get item name for display
+const char *item_get_name(Item *i) {
+  if (i == NULL)
+    return "";
+
+  switch (i->type) {
+  case ITEM_POTION:
+    return "Potion";
+  case ITEM_WEAPON:
+    return "Weapon";
+  case ITEM_ARMOR:
+    return "Armor";
+  default:
+    return "Unknown";
+  }
+}
+
+// Get item description
+const char *item_get_description(Item *i) {
+  if (i == NULL)
+    return "";
+
+  switch (i->type) {
+  case ITEM_POTION:
+    return "Heals HP";
+  case ITEM_WEAPON:
+    return "+Attack";
+  case ITEM_ARMOR:
+    return "+Defense";
+  default:
+    return "";
+  }
+}
+
+// Get item power value
+int item_get_power(Item *i) {
+  if (i == NULL)
+    return 0;
+  return i->power;
+}
+
+void item_use(Player *p, Item *i) {
+  if (p == NULL || i == NULL)
+    return;
+
+  switch (i->type) {
+  case ITEM_POTION:
+    // Heal player
+    p->hp += i->power;
+    if (p->hp > p->max_hp) {
+      p->hp = p->max_hp;
+    }
+    break;
+
+  case ITEM_WEAPON:
+    // Increase attack
+    p->attack += i->power;
+    break;
+
+  case ITEM_ARMOR:
+    // Increase defense
+    p->defense += i->power;
+    break;
+
+  default:
+    break;
+  }
+}