#include "tileset_paint.h"
#include <stddef.h>
#include <stdlib.h>

// Simple LCG for deterministic noise (seeded by position)
static unsigned int lcg_seed = 0;
static void lcg_srand(unsigned int seed) {
  lcg_seed = seed;
}
static unsigned int lcg_rand(void) {
  lcg_seed = lcg_seed * 1103515245 + 12345;
  return lcg_seed;
}

static int lcg_rand_range(int min, int max) {
  if (max <= min)
    return min;
  return min + (int)(lcg_rand() % (unsigned int)(max - min + 1));
}

// Get the RenderTexture target for painting a specific tile ID
static RenderTexture2D get_target(Tileset *ts) {
  return ts->render_target;
}

// Compute screen offset for a tile ID within the atlas
static Vector2 get_paint_offset(Tileset *ts, int id) {
  int col = id % ts->atlas_cols;
  int row = id / ts->atlas_cols;
  return (Vector2){(float)(col * ts->tile_w), (float)(row * ts->tile_h)};
}

void paint_wall_tile(Tileset *ts, int id, int variant) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int w = ts->tile_w;
  int h = ts->tile_h;

  BeginTextureMode(ts->render_target);

  // Base color is much darker for better contrast against floor
  Color base = variant == 0 ? (Color){45, 42, 38, 255} : (Color){35, 32, 28, 255};
  DrawRectangle((int)off.x, (int)off.y, w, h, base);

  // Brick pattern
  int brick_h = h / 3;
  int brick_w = w / 2;
  Color mortar = (Color){25, 22, 18, 255};
  Color brick_light = variant == 0 ? (Color){70, 65, 60, 255} : (Color){50, 47, 43, 255};
  Color brick_dark = variant == 0 ? (Color){40, 37, 33, 255} : (Color){30, 27, 24, 255};

  for (int row = 0; row < 3; row++) {
    int y = (int)off.y + row * brick_h;
    int offset_x = (row % 2 == 0) ? 0 : brick_w / 2;
    for (int col = -1; col < 3; col++) {
      int x = (int)off.x + offset_x + col * brick_w;
      if (x >= (int)off.x + w)
        break;
      if (x + brick_w <= (int)off.x)
        continue;

      // Clip to tile bounds
      int draw_x = x < (int)off.x ? (int)off.x : x;
      int draw_w = brick_w;
      if (draw_x + draw_w > (int)off.x + w)
        draw_w = (int)off.x + w - draw_x;

      Color c = ((col + row) % 2 == 0) ? brick_light : brick_dark;
      DrawRectangle(draw_x, y, draw_w, brick_h - 1, c);
    }
  }

  // Mortar lines
  for (int row = 1; row < 3; row++) {
    int y = (int)off.y + row * brick_h;
    DrawLine((int)off.x, y, (int)off.x + w - 1, y, mortar);
  }

  EndTextureMode();
}

void paint_floor_tile(Tileset *ts, int id, int variant) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int w = ts->tile_w;
  int h = ts->tile_h;

  BeginTextureMode(ts->render_target);

  // Base stone color - lighter than walls for contrast
  Color base = (Color){75, 72, 68, 255};
  DrawRectangle((int)off.x, (int)off.y, w, h, base);

  // Seeded noise based on variant
  lcg_srand((unsigned int)(variant * 7919 + id * 104729));

  // Dithered noise dots - lighter shades
  int num_dots = 8 + variant * 4;
  for (int i = 0; i < num_dots; i++) {
    int px = (int)off.x + lcg_rand_range(1, w - 2);
    int py = (int)off.y + lcg_rand_range(1, h - 2);
    int shade = lcg_rand_range(0, 3);
    Color c;
    if (shade == 0)
      c = (Color){85, 82, 78, 255};
    else if (shade == 1)
      c = (Color){65, 62, 58, 255};
    else
      c = (Color){90, 87, 83, 255};
    DrawPixel(px, py, c);
  }

  // Occasional crack line
  if (variant >= 2) {
    int crack_x = (int)off.x + lcg_rand_range(2, w - 3);
    int crack_y = (int)off.y + lcg_rand_range(2, h - 3);
    int crack_len = lcg_rand_range(2, 4);
    int crack_dir = lcg_rand_range(0, 1);  // 0 = horizontal, 1 = vertical
    Color crack_color = (Color){55, 52, 48, 255};
    for (int i = 0; i < crack_len; i++) {
      if (crack_dir == 0)
        DrawPixel(crack_x + i, crack_y, crack_color);
      else
        DrawPixel(crack_x, crack_y + i, crack_color);
    }
  }

  EndTextureMode();
}

void paint_stairs_tile(Tileset *ts, int id) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int w = ts->tile_w;
  int h = ts->tile_h;

  BeginTextureMode(ts->render_target);

  // Dark stone background
  DrawRectangle((int)off.x, (int)off.y, w, h, (Color){40, 38, 35, 255});

  // Stair steps (3 steps)
  int step_h = h / 4;
  Color step_light = (Color){100, 95, 90, 255};
  Color step_dark = (Color){60, 57, 53, 255};

  for (int i = 0; i < 3; i++) {
    int y = (int)off.y + h - (i + 1) * step_h;
    int inset = i * 2;
    int x = (int)off.x + inset;
    DrawRectangle(x, y, w - inset * 2, step_h - 1, step_light);
    DrawLine(x, y + step_h - 1, x + w - inset * 2 - 1, y + step_h - 1, step_dark);
  }

  // ">" symbol on top step
  int top_y = (int)off.y + 2;
  int cx = (int)off.x + w / 2;
  Color arrow = (Color){180, 175, 170, 255};
  DrawPixel(cx, top_y, arrow);
  DrawPixel(cx - 1, top_y + 1, arrow);
  DrawPixel(cx + 1, top_y + 1, arrow);
  DrawPixel(cx - 2, top_y + 2, arrow);
  DrawPixel(cx + 2, top_y + 2, arrow);
  DrawPixel(cx, top_y + 3, arrow);

  EndTextureMode();
}

static void draw_player_base(Tileset *ts, int id, int leg_offset_left, int leg_offset_right, int arm_offset_left,
                             int arm_offset_right) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int w = ts->tile_w;
  int h = ts->tile_h;
  int ox = (int)off.x;
  int oy = (int)off.y;

  BeginTextureMode(ts->render_target);

  // Clear to transparent
  DrawRectangle(ox, oy, w, h, BLANK);

  // Simple adventurer silhouette (16x16)
  Color skin = (Color){230, 200, 160, 255};
  Color tunic = (Color){60, 100, 180, 255};
  Color pants = (Color){80, 60, 40, 255};
  Color boots = (Color){50, 40, 30, 255};
  Color hair = (Color){120, 80, 40, 255};

  // Head (3x3)
  DrawRectangle(ox + 6, oy + 2, 4, 3, skin);
  // Hair
  DrawRectangle(ox + 6, oy + 1, 4, 1, hair);
  DrawPixel(ox + 5, oy + 2, hair);
  DrawPixel(ox + 10, oy + 2, hair);

  // Body/tunic (4x5)
  DrawRectangle(ox + 5, oy + 5, 6, 5, tunic);
  // Belt
  DrawRectangle(ox + 5, oy + 9, 6, 1, (Color){120, 80, 30, 255});

  // Legs with offset for walking animation
  DrawRectangle(ox + 6 + leg_offset_left, oy + 10, 2, 4, pants);
  DrawRectangle(ox + 8 + leg_offset_right, oy + 10, 2, 4, pants);

  // Boots with offset
  DrawRectangle(ox + 6 + leg_offset_left, oy + 14, 2, 2, boots);
  DrawRectangle(ox + 8 + leg_offset_right, oy + 14, 2, 2, boots);

  // Arms with offset
  DrawRectangle(ox + 3 + arm_offset_left, oy + 6, 2, 3, skin);
  DrawRectangle(ox + 11 + arm_offset_right, oy + 6, 2, 3, skin);

  EndTextureMode();
}

void paint_player_tile(Tileset *ts, int id) {
  // Idle pose - no offsets
  draw_player_base(ts, id, 0, 0, 0, 0);
}

void paint_player_walk_tile(Tileset *ts, int id, int frame) {
  // Frame 0: left leg forward, right leg back
  // Frame 1: right leg forward, left leg back
  int leg_left = (frame == 0) ? -1 : 1;
  int leg_right = (frame == 0) ? 1 : -1;
  int arm_left = (frame == 0) ? 1 : -1;
  int arm_right = (frame == 0) ? -1 : 1;
  draw_player_base(ts, id, leg_left, leg_right, arm_left, arm_right);
}

void paint_player_attack_tile(Tileset *ts, int id) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int w = ts->tile_w;
  int h = ts->tile_h;
  int ox = (int)off.x;
  int oy = (int)off.y;

  BeginTextureMode(ts->render_target);

  // Clear to transparent
  DrawRectangle(ox, oy, w, h, BLANK);

  // Attack pose - lunging forward with sword arm extended
  Color skin = (Color){230, 200, 160, 255};
  Color tunic = (Color){60, 100, 180, 255};
  Color pants = (Color){80, 60, 40, 255};
  Color boots = (Color){50, 40, 30, 255};
  Color hair = (Color){120, 80, 40, 255};
  Color steel = (Color){180, 180, 190, 255};

  // Head (3x3)
  DrawRectangle(ox + 7, oy + 2, 4, 3, skin);
  // Hair
  DrawRectangle(ox + 7, oy + 1, 4, 1, hair);
  DrawPixel(ox + 6, oy + 2, hair);
  DrawPixel(ox + 11, oy + 2, hair);

  // Body/tunic (4x5) - shifted right for lunge
  DrawRectangle(ox + 6, oy + 5, 6, 5, tunic);
  // Belt
  DrawRectangle(ox + 6, oy + 9, 6, 1, (Color){120, 80, 30, 255});

  // Legs - left forward, right back
  DrawRectangle(ox + 5, oy + 10, 2, 4, pants);
  DrawRectangle(ox + 9, oy + 10, 2, 4, pants);

  // Boots
  DrawRectangle(ox + 5, oy + 14, 2, 2, boots);
  DrawRectangle(ox + 9, oy + 14, 2, 2, boots);

  // Left arm (back)
  DrawRectangle(ox + 4, oy + 6, 2, 3, skin);

  // Right arm extended forward with sword
  DrawRectangle(ox + 12, oy + 6, 3, 2, skin);
  // Sword blade
  DrawRectangle(ox + 14, oy + 4, 1, 6, steel);
  // Sword hilt
  DrawRectangle(ox + 13, oy + 7, 3, 1, (Color){100, 80, 40, 255});

  EndTextureMode();
}

// Draw goblin base with configurable leg/arm offsets
static void draw_goblin_base(Tileset *ts, int id, int leg_left, int leg_right, int arm_left, int arm_right) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int ox = (int)off.x;
  int oy = (int)off.y;

  Color skin = (Color){80, 140, 60, 255};
  Color dark = (Color){50, 90, 35, 255};

  BeginTextureMode(ts->render_target);
  DrawRectangle(ox, oy, ts->tile_w, ts->tile_h, BLANK);

  // Head (large, hunched forward)
  DrawRectangle(ox + 4, oy + 3, 8, 6, skin);
  // Eyes (angry)
  DrawPixel(ox + 5, oy + 5, (Color){200, 50, 50, 255});
  DrawPixel(ox + 10, oy + 5, (Color){200, 50, 50, 255});
  // Ears (pointy)
  DrawPixel(ox + 3, oy + 4, skin);
  DrawPixel(ox + 12, oy + 4, skin);
  // Body (small, hunched)
  DrawRectangle(ox + 5, oy + 9, 6, 4, dark);
  // Legs with offsets
  DrawRectangle(ox + 5 + leg_left, oy + 13, 2, 3, skin);
  DrawRectangle(ox + 9 + leg_right, oy + 13, 2, 3, skin);
  // Arms with offsets
  DrawRectangle(ox + 3 + arm_left, oy + 10, 2, 2, skin);
  DrawRectangle(ox + 11 + arm_right, oy + 10, 2, 2, skin);

  EndTextureMode();
}

// Draw skeleton base with configurable leg/arm offsets
static void draw_skeleton_base(Tileset *ts, int id, int leg_left, int leg_right, int arm_left, int arm_right) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int ox = (int)off.x;
  int oy = (int)off.y;

  Color bone = (Color){220, 220, 210, 255};
  Color dark_bone = (Color){180, 180, 170, 255};

  BeginTextureMode(ts->render_target);
  DrawRectangle(ox, oy, ts->tile_w, ts->tile_h, BLANK);

  // Skull
  DrawRectangle(ox + 5, oy + 2, 6, 5, bone);
  // Eye sockets
  DrawPixel(ox + 6, oy + 4, (Color){20, 20, 20, 255});
  DrawPixel(ox + 9, oy + 4, (Color){20, 20, 20, 255});
  // Ribs
  for (int i = 0; i < 3; i++) {
    DrawRectangle(ox + 4, oy + 8 + i * 2, 8, 1, bone);
  }
  // Spine
  DrawRectangle(ox + 7, oy + 7, 2, 6, dark_bone);
  // Legs with offsets
  DrawRectangle(ox + 5 + leg_left, oy + 13, 2, 3, bone);
  DrawRectangle(ox + 9 + leg_right, oy + 13, 2, 3, bone);
  // Arms with offsets
  DrawRectangle(ox + 3 + arm_left, oy + 8, 2, 3, bone);
  DrawRectangle(ox + 11 + arm_right, oy + 8, 2, 3, bone);

  EndTextureMode();
}

// Draw orc base with configurable leg/arm offsets
static void draw_orc_base(Tileset *ts, int id, int leg_left, int leg_right, int arm_left, int arm_right) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int ox = (int)off.x;
  int oy = (int)off.y;

  Color skin = (Color){60, 100, 45, 255};
  Color dark = (Color){40, 70, 30, 255};

  BeginTextureMode(ts->render_target);
  DrawRectangle(ox, oy, ts->tile_w, ts->tile_h, BLANK);

  // Large head
  DrawRectangle(ox + 3, oy + 2, 10, 7, skin);
  // Small angry eyes
  DrawPixel(ox + 5, oy + 5, (Color){250, 250, 50, 255});
  DrawPixel(ox + 10, oy + 5, (Color){250, 250, 50, 255});
  // Tusks
  DrawPixel(ox + 6, oy + 7, (Color){240, 240, 220, 255});
  DrawPixel(ox + 9, oy + 7, (Color){240, 240, 220, 255});
  // Broad body
  DrawRectangle(ox + 3, oy + 9, 10, 5, dark);
  // Thick legs with offsets
  DrawRectangle(ox + 4 + leg_left, oy + 14, 3, 2, skin);
  DrawRectangle(ox + 9 + leg_right, oy + 14, 3, 2, skin);
  // Thick arms with offsets
  DrawRectangle(ox + 1 + arm_left, oy + 10, 3, 3, skin);
  DrawRectangle(ox + 12 + arm_right, oy + 10, 3, 3, skin);

  EndTextureMode();
}

void paint_enemy_tile(Tileset *ts, int id, int enemy_type) {
  // Idle pose - no offsets
  switch (enemy_type) {
  case 0:
    draw_goblin_base(ts, id, 0, 0, 0, 0);
    break;
  case 1:
    draw_skeleton_base(ts, id, 0, 0, 0, 0);
    break;
  case 2:
    draw_orc_base(ts, id, 0, 0, 0, 0);
    break;
  default:
    break;
  }
}

void paint_enemy_walk_tile(Tileset *ts, int id, int enemy_type, int frame) {
  // Frame 0: left leg forward, right leg back
  // Frame 1: right leg forward, left leg back
  int leg_left = (frame == 0) ? -1 : 1;
  int leg_right = (frame == 0) ? 1 : -1;
  int arm_left = (frame == 0) ? 1 : -1;
  int arm_right = (frame == 0) ? -1 : 1;

  switch (enemy_type) {
  case 0:
    draw_goblin_base(ts, id, leg_left, leg_right, arm_left, arm_right);
    break;
  case 1:
    draw_skeleton_base(ts, id, leg_left, leg_right, arm_left, arm_right);
    break;
  case 2:
    draw_orc_base(ts, id, leg_left, leg_right, arm_left, arm_right);
    break;
  default:
    break;
  }
}

void paint_enemy_attack_tile(Tileset *ts, int id, int enemy_type) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int ox = (int)off.x;
  int oy = (int)off.y;

  BeginTextureMode(ts->render_target);
  DrawRectangle(ox, oy, ts->tile_w, ts->tile_h, BLANK);

  switch (enemy_type) {
  case 0: {
    // Goblin attack - lunging with dagger
    Color skin = (Color){80, 140, 60, 255};
    Color dark = (Color){50, 90, 35, 255};
    Color steel = (Color){180, 180, 190, 255};
    // Head (leaning forward)
    DrawRectangle(ox + 6, oy + 3, 8, 6, skin);
    DrawPixel(ox + 7, oy + 5, (Color){200, 50, 50, 255});
    DrawPixel(ox + 12, oy + 5, (Color){200, 50, 50, 255});
    // Body
    DrawRectangle(ox + 7, oy + 9, 6, 4, dark);
    // Left leg back
    DrawRectangle(ox + 5, oy + 13, 2, 3, skin);
    // Right leg forward
    DrawRectangle(ox + 11, oy + 13, 2, 3, skin);
    // Left arm back
    DrawRectangle(ox + 4, oy + 10, 2, 2, skin);
    // Right arm extended with dagger
    DrawRectangle(ox + 14, oy + 9, 2, 2, skin);
    DrawRectangle(ox + 15, oy + 7, 1, 4, steel);
    break;
  }
  case 1: {
    // Skeleton attack - swinging sword
    Color bone = (Color){220, 220, 210, 255};
    Color dark_bone = (Color){180, 180, 170, 255};
    Color steel = (Color){180, 180, 190, 255};
    // Skull
    DrawRectangle(ox + 6, oy + 2, 6, 5, bone);
    DrawPixel(ox + 7, oy + 4, (Color){20, 20, 20, 255});
    DrawPixel(ox + 10, oy + 4, (Color){20, 20, 20, 255});
    // Ribs
    for (int i = 0; i < 3; i++) {
      DrawRectangle(ox + 5, oy + 8 + i * 2, 8, 1, bone);
    }
    // Spine
    DrawRectangle(ox + 8, oy + 7, 2, 6, dark_bone);
    // Legs
    DrawRectangle(ox + 6, oy + 13, 2, 3, bone);
    DrawRectangle(ox + 10, oy + 13, 2, 3, bone);
    // Left arm back
    DrawRectangle(ox + 4, oy + 8, 2, 3, bone);
    // Right arm extended with sword
    DrawRectangle(ox + 13, oy + 7, 3, 2, bone);
    DrawRectangle(ox + 15, oy + 5, 1, 6, steel);
    break;
  }
  case 2: {
    // Orc attack - overhead smash
    Color skin = (Color){60, 100, 45, 255};
    Color dark = (Color){40, 70, 30, 255};
    Color steel = (Color){180, 180, 190, 255};
    // Head
    DrawRectangle(ox + 4, oy + 2, 10, 7, skin);
    DrawPixel(ox + 6, oy + 5, (Color){250, 250, 50, 255});
    DrawPixel(ox + 11, oy + 5, (Color){250, 250, 50, 255});
    // Tusks
    DrawPixel(ox + 7, oy + 7, (Color){240, 240, 220, 255});
    DrawPixel(ox + 10, oy + 7, (Color){240, 240, 220, 255});
    // Body
    DrawRectangle(ox + 4, oy + 9, 10, 5, dark);
    // Legs
    DrawRectangle(ox + 5, oy + 14, 3, 2, skin);
    DrawRectangle(ox + 10, oy + 14, 3, 2, skin);
    // Left arm back
    DrawRectangle(ox + 2, oy + 10, 3, 3, skin);
    // Right arm raised with club
    DrawRectangle(ox + 13, oy + 4, 3, 3, skin);
    DrawRectangle(ox + 14, oy + 1, 2, 5, steel);
    break;
  }
  default:
    break;
  }

  EndTextureMode();
}

void paint_item_tile(Tileset *ts, int id, int item_type) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int w = ts->tile_w;
  int h = ts->tile_h;
  int ox = (int)off.x;
  int oy = (int)off.y;

  BeginTextureMode(ts->render_target);
  DrawRectangle(ox, oy, w, h, BLANK);

  switch (item_type) {
  case 0: {
    // Flask shape
    Color glass = (Color){200, 60, 60, 255};
    Color liquid = (Color){255, 80, 80, 255};
    Color highlight = (Color){255, 150, 150, 255};
    // Neck
    DrawRectangle(ox + 6, oy + 2, 4, 3, glass);
    // Body
    DrawRectangle(ox + 4, oy + 5, 8, 8, liquid);
    // Cork
    DrawRectangle(ox + 6, oy + 1, 4, 1, (Color){160, 120, 60, 255});
    // Highlight
    DrawPixel(ox + 5, oy + 6, highlight);
    DrawPixel(ox + 5, oy + 7, highlight);
    break;
  }
  case 1: {
    // Sword
    Color blade = (Color){220, 220, 230, 255};
    Color hilt = (Color){160, 120, 40, 255};
    Color guard = (Color){140, 140, 150, 255};
    // Blade
    DrawRectangle(ox + 7, oy + 2, 2, 9, blade);
    // Tip
    DrawPixel(ox + 7, oy + 1, blade);
    DrawPixel(ox + 8, oy + 1, blade);
    // Guard
    DrawRectangle(ox + 5, oy + 11, 6, 1, guard);
    // Hilt
    DrawRectangle(ox + 7, oy + 12, 2, 3, hilt);
    // Pommel
    DrawPixel(ox + 7, oy + 15, guard);
    DrawPixel(ox + 8, oy + 15, guard);
    break;
  }
  case 2: {
    // Chestplate
    Color metal = (Color){100, 120, 160, 255};
    Color dark_metal = (Color){70, 85, 115, 255};
    Color highlight = (Color){140, 160, 200, 255};
    // Main plate
    DrawRectangle(ox + 4, oy + 3, 8, 9, metal);
    // Collar
    DrawRectangle(ox + 5, oy + 2, 6, 1, dark_metal);
    // Vertical ridge
    DrawRectangle(ox + 7, oy + 3, 2, 9, highlight);
    // Bottom trim
    DrawRectangle(ox + 4, oy + 11, 8, 1, dark_metal);
    break;
  }
  default:
    break;
  }

  EndTextureMode();
}

void paint_door_closed_tile(Tileset *ts, int id) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int ox = (int)off.x;
  int oy = (int)off.y;
  int w = ts->tile_w;
  int h = ts->tile_h;

  BeginTextureMode(ts->render_target);

  // Wooden door frame
  Color wood_dark = (Color){100, 70, 40, 255};
  Color wood_light = (Color){140, 100, 60, 255};
  Color wood_mid = (Color){120, 85, 50, 255};

  // Frame
  DrawRectangle(ox, oy, w, h, wood_dark);
  // Panels
  DrawRectangle(ox + 2, oy + 2, w - 4, h - 4, wood_mid);
  // Inner panel
  DrawRectangle(ox + 4, oy + 4, w - 8, h - 8, wood_light);
  // Cross pattern
  DrawRectangle(ox + 7, oy + 2, 2, h - 4, wood_dark);
  DrawRectangle(ox + 2, oy + 7, w - 4, 2, wood_dark);
  // Handle
  DrawPixel(ox + 12, oy + 8, (Color){200, 180, 50, 255});
  DrawPixel(ox + 12, oy + 9, (Color){200, 180, 50, 255});

  EndTextureMode();
}

void paint_door_open_tile(Tileset *ts, int id) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int ox = (int)off.x;
  int oy = (int)off.y;
  int w = ts->tile_w;
  int h = ts->tile_h;

  BeginTextureMode(ts->render_target);

  // Open door - shows floor with door frame on sides
  Color floor = (Color){75, 72, 68, 255};
  Color wood_dark = (Color){100, 70, 40, 255};

  // Floor
  DrawRectangle(ox, oy, w, h, floor);
  // Door frame on left side (open)
  DrawRectangle(ox, oy, 3, h, wood_dark);
  // Hinges
  DrawPixel(ox + 1, oy + 4, (Color){80, 80, 80, 255});
  DrawPixel(ox + 1, oy + 12, (Color){80, 80, 80, 255});

  EndTextureMode();
}

void paint_effect_burn_tile(Tileset *ts, int id) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int ox = (int)off.x;
  int oy = (int)off.y;

  BeginTextureMode(ts->render_target);
  DrawRectangle(ox, oy, ts->tile_w, ts->tile_h, BLANK);

  // Fire effect - orange/red flames
  Color flame1 = (Color){255, 100, 20, 255};
  Color flame2 = (Color){255, 180, 40, 255};
  Color flame3 = (Color){255, 60, 10, 255};

  // Flame shapes
  DrawRectangle(ox + 4, oy + 8, 2, 6, flame1);
  DrawRectangle(ox + 7, oy + 6, 2, 8, flame2);
  DrawRectangle(ox + 10, oy + 9, 2, 5, flame3);
  DrawPixel(ox + 5, oy + 5, flame2);
  DrawPixel(ox + 8, oy + 4, flame1);
  DrawPixel(ox + 11, oy + 7, flame2);

  EndTextureMode();
}

void paint_effect_poison_tile(Tileset *ts, int id) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int ox = (int)off.x;
  int oy = (int)off.y;

  BeginTextureMode(ts->render_target);
  DrawRectangle(ox, oy, ts->tile_w, ts->tile_h, BLANK);

  // Poison effect - green bubbles/drops
  Color poison1 = (Color){50, 200, 50, 255};
  Color poison2 = (Color){30, 150, 30, 255};
  Color poison3 = (Color){80, 255, 80, 255};

  // Bubbles
  DrawRectangle(ox + 5, oy + 4, 3, 3, poison1);
  DrawRectangle(ox + 9, oy + 7, 2, 2, poison2);
  DrawRectangle(ox + 4, oy + 10, 2, 2, poison3);
  DrawRectangle(ox + 8, oy + 11, 3, 2, poison1);
  DrawPixel(ox + 11, oy + 5, poison3);
  DrawPixel(ox + 6, oy + 13, poison2);

  EndTextureMode();
}

void paint_effect_block_tile(Tileset *ts, int id) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int ox = (int)off.x;
  int oy = (int)off.y;

  BeginTextureMode(ts->render_target);
  DrawRectangle(ox, oy, ts->tile_w, ts->tile_h, BLANK);

  // Block/shield effect - blue shield shape
  Color shield = (Color){80, 130, 220, 255};
  Color shield_light = (Color){120, 170, 255, 255};
  Color shield_dark = (Color){50, 90, 180, 255};

  // Shield outline
  DrawRectangle(ox + 4, oy + 2, 8, 12, shield);
  // Inner highlight
  DrawRectangle(ox + 6, oy + 4, 4, 8, shield_light);
  // Border
  DrawRectangle(ox + 4, oy + 2, 8, 1, shield_dark);
  DrawRectangle(ox + 4, oy + 13, 8, 1, shield_dark);
  DrawRectangle(ox + 4, oy + 2, 1, 12, shield_dark);
  DrawRectangle(ox + 11, oy + 2, 1, 12, shield_dark);
  // Cross in center
  DrawRectangle(ox + 7, oy + 6, 2, 4, shield_dark);
  DrawRectangle(ox + 6, oy + 7, 4, 2, shield_dark);

  EndTextureMode();
}

void paint_slash_effect_tile(Tileset *ts, int id) {
  if (ts == NULL || id < 0 || id >= MAX_TILE_ID)
    return;
  if (ts->render_target.id == 0 || ts->finalized)
    return;

  Vector2 off = get_paint_offset(ts, id);
  int ox = (int)off.x;
  int oy = (int)off.y;

  BeginTextureMode(ts->render_target);
  DrawRectangle(ox, oy, ts->tile_w, ts->tile_h, BLANK);

  // Slash effect - white/gray diagonal slash
  Color slash = (Color){255, 255, 255, 255};
  Color slash_trail = (Color){200, 200, 220, 255};

  // Main slash line (diagonal)
  DrawRectangle(ox + 2, oy + 12, 3, 2, slash);
  DrawRectangle(ox + 4, oy + 10, 3, 2, slash);
  DrawRectangle(ox + 6, oy + 8, 3, 2, slash);
  DrawRectangle(ox + 8, oy + 6, 3, 2, slash);
  DrawRectangle(ox + 10, oy + 4, 3, 2, slash);
  DrawRectangle(ox + 12, oy + 2, 2, 2, slash);
  // Trail
  DrawPixel(ox + 3, oy + 11, slash_trail);
  DrawPixel(ox + 5, oy + 9, slash_trail);
  DrawPixel(ox + 7, oy + 7, slash_trail);
  DrawPixel(ox + 9, oy + 5, slash_trail);
  DrawPixel(ox + 11, oy + 3, slash_trail);

  EndTextureMode();
}

int tileset_paint_all(Tileset *ts) {
  if (ts == NULL)
    return 0;
  if (ts->render_target.id == 0 || ts->finalized)
    return 0;

  // Register all tile IDs first
  for (int id = 0; id < NUM_TILE_IDS; id++) {
    if (!tileset_register(ts, id))
      return 0;
  }

  // Paint map tiles
  paint_wall_tile(ts, TILE_WALL_0, 0);
  paint_wall_tile(ts, TILE_WALL_1, 1);
  paint_floor_tile(ts, TILE_FLOOR_0, 0);
  paint_floor_tile(ts, TILE_FLOOR_1, 1);
  paint_floor_tile(ts, TILE_FLOOR_2, 2);
  paint_floor_tile(ts, TILE_FLOOR_3, 3);
  paint_stairs_tile(ts, TILE_STAIRS_SPRITE);

  // Paint entity sprites
  paint_player_tile(ts, SPRITE_PLAYER);
  paint_player_walk_tile(ts, SPRITE_PLAYER_WALK_0, 0);
  paint_player_walk_tile(ts, SPRITE_PLAYER_WALK_1, 1);
  paint_player_attack_tile(ts, SPRITE_PLAYER_ATTACK);

  // Enemy goblin sprites
  paint_enemy_tile(ts, SPRITE_ENEMY_GOBLIN, 0);
  paint_enemy_walk_tile(ts, SPRITE_ENEMY_GOBLIN_WALK_0, 0, 0);
  paint_enemy_walk_tile(ts, SPRITE_ENEMY_GOBLIN_WALK_1, 0, 1);
  paint_enemy_attack_tile(ts, SPRITE_ENEMY_GOBLIN_ATTACK, 0);

  // Enemy skeleton sprites
  paint_enemy_tile(ts, SPRITE_ENEMY_SKELETON, 1);
  paint_enemy_walk_tile(ts, SPRITE_ENEMY_SKELETON_WALK_0, 1, 0);
  paint_enemy_walk_tile(ts, SPRITE_ENEMY_SKELETON_WALK_1, 1, 1);
  paint_enemy_attack_tile(ts, SPRITE_ENEMY_SKELETON_ATTACK, 1);

  // Enemy orc sprites
  paint_enemy_tile(ts, SPRITE_ENEMY_ORC, 2);
  paint_enemy_walk_tile(ts, SPRITE_ENEMY_ORC_WALK_0, 2, 0);
  paint_enemy_walk_tile(ts, SPRITE_ENEMY_ORC_WALK_1, 2, 1);
  paint_enemy_attack_tile(ts, SPRITE_ENEMY_ORC_ATTACK, 2);

  paint_item_tile(ts, SPRITE_ITEM_POTION, 0);
  paint_item_tile(ts, SPRITE_ITEM_WEAPON, 1);
  paint_item_tile(ts, SPRITE_ITEM_ARMOR, 2);

  // Door tiles
  paint_door_closed_tile(ts, TILE_DOOR_CLOSED_SPRITE);
  paint_door_open_tile(ts, TILE_DOOR_OPEN_SPRITE);

  // Effect sprites
  paint_effect_burn_tile(ts, SPRITE_EFFECT_BURN);
  paint_effect_poison_tile(ts, SPRITE_EFFECT_POISON);
  paint_effect_block_tile(ts, SPRITE_EFFECT_BLOCK);
  paint_slash_effect_tile(ts, SPRITE_SLASH_EFFECT);

  return 1;
}