feat: tile rotation

4 files changed, 54 insertions, 3 deletions

diff --git a/src/editor.c b/src/editor.c
index 73164f5..425dc64 100644
--- a/src/editor.c
+++ b/src/editor.c
@@ -25,6 +25,14 @@ void SE_UpdateEditor(Editor *editor) {
     state->activeTileLayerId = state->activeTilesetTile->type;
     SE_LOG_INFO("Changed selected layer");
   }
+
+  // update tile rotation
+  if (IsKeyPressed(KEY_R)) {
+    state->tileRotation += 90.0f;
+    if (state->tileRotation >= 360.0f) {
+      state->tileRotation = 0.0f;
+    }
+  }
 }
 
 void drawBuildTab(Editor *editor, Tileset *tileset, int x, int y, int width,
@@ -60,6 +68,30 @@ void drawBuildTab(Editor *editor, Tileset *tileset, int x, int y, int width,
                        24.0f},
            selectedTileLabel);
 
+  // Drawing rotation
+  GuiLabel((Rectangle){x + padding * 7.0f, y + padding * 2.0f,
+                       width - padding * 2.0f, 24.0f},
+           "Rotation");
+
+  DrawCircle(x + padding * 7.0f + 10.0f, y + padding * 3.0f + 10.0f, 10.0f,
+             LIGHTGRAY);
+
+  DrawCircleSector(
+      (Vector2){x + padding * 7.0f + 10.0f, y + padding * 3.0f + 10.0f}, 10.0f,
+      0.0f, editor->state.tileRotation, 4, GRAY);
+
+  int rotationTextLength =
+      snprintf(NULL, 0, "%.0f", editor->state.tileRotation);
+  char *rotationText = malloc(rotationTextLength + 1);
+  snprintf(rotationText, rotationTextLength + 1, "%.0f",
+           editor->state.tileRotation);
+
+  GuiLabel((Rectangle){x + padding * 7.0f + 25.0f, y + padding * 3.0f,
+                       width - padding * 2.0f, 24.0f},
+           rotationText);
+
+  free(rotationText);
+
   // Rendering
   Rectangle controlBounds = {x + padding, y + padding + 20.0f * 8.0f,
                              width - padding * 2.0f, 200.0f};
diff --git a/src/editor.h b/src/editor.h
index b0b0441..9b2cda5 100644
--- a/src/editor.h
+++ b/src/editor.h
@@ -20,6 +20,8 @@ typedef struct {
   int activeMainTab;
   int activeTileLayerId;
 
+  float tileRotation;
+
   TilesetTile *activeTilesetTile;
   EditorCreateBlockState *createBlockState;
   Rectangle panelView;
diff --git a/src/floor.c b/src/floor.c
index 22b2718..91dcf86 100644
--- a/src/floor.c
+++ b/src/floor.c
@@ -9,6 +9,7 @@ Tile *SE_CreateTile(TileLayer *layer, TilesetTile *tilesetTile) {
   tile->id = layer->tileCount;
   tile->tilesetTile = tilesetTile;
   tile->position = (Vector2){0.0f, 0.0f};
+  tile->rotation = 0.0f;
 
   layer->tiles[layer->tileCount] = tile;
   layer->tileCount++;
@@ -119,6 +120,7 @@ void SE_UpdateTileFloor(EditorState *state, TileFloor *floor,
             tile->position = pos;
           }
 
+          tile->rotation = state->tileRotation;
           tile->tilesetTile = state->activeTilesetTile;
         }
 
@@ -147,7 +149,18 @@ void SE_DrawTileFloor(TileFloor *floor, EditorState *state, Camera2D *camera) {
                      tile->position.y * camera->zoom, camera->zoom,
                      camera->zoom};
 
-      DrawTexturePro(tile->tilesetTile->texture, s, d, (Vector2){0, 0}, 0.0f,
+      Vector2 o = {0, 0};
+
+      if (tile->rotation == 90.0f) {
+        o.y = d.height;
+      } else if (tile->rotation == 180.0f) {
+        o.x = d.width;
+        o.y = d.height;
+      } else if (tile->rotation == 270.0f) {
+        o.x = d.width;
+      }
+
+      DrawTexturePro(tile->tilesetTile->texture, s, d, o, tile->rotation,
                      WHITE);
     }
   }
@@ -158,8 +171,11 @@ void SE_DrawTileFloor(TileFloor *floor, EditorState *state, Camera2D *camera) {
     Rectangle s = {0, 0, TILE_WIDTH, TILE_HEIGHT};
     Rectangle d = {mousePos.x, mousePos.y, camera->zoom / 2.0f,
                    camera->zoom / 2.0f};
-    DrawTexturePro(state->activeTilesetTile->texture, s, d, (Vector2){0, 0},
-                   0.0f, WHITE);
+
+    Vector2 o = {d.width / 2.0f, d.height / 2.0f};
+
+    DrawTexturePro(state->activeTilesetTile->texture, s, d, o,
+                   state->tileRotation, WHITE);
   }
 }
 
diff --git a/src/floor.h b/src/floor.h
index 4f112fa..ad3b2da 100644
--- a/src/floor.h
+++ b/src/floor.h
@@ -8,6 +8,7 @@
 typedef struct {
   int id;
   Vector2 position;
+  float rotation;
   TilesetTile *tilesetTile;
 } Tile;