Playing around with hitboxes

Extensions/BBText/bbtextruntimeobject-pixi-renderer.ts

@@ -95,10 +95,11 @@ namespace gdjs {
     }
 
     updateFontFamily(): void {
-      this._pixiObject.textStyles.default.fontFamily = this._object._runtimeScene
-        .getGame()
-        .getFontManager()
-        .getFontFamily(this._object._fontFamily);
+      this._pixiObject.textStyles.default.fontFamily =
+        this._object._runtimeScene
+          .getGame()
+          .getFontManager()
+          .getFontFamily(this._object._fontFamily);
       this._pixiObject.dirty = true;
     }
 
@@ -109,9 +110,14 @@ namespace gdjs {
     }
 
     updatePosition(): void {
-      this._pixiObject.position.x = this._object.x + this._pixiObject.width / 2;
-      this._pixiObject.position.y =
-        this._object.y + this._pixiObject.height / 2;
+      const angle = gdjs.toRad(this._object.angle);
+      const height = this.getHeight() / 2;
+      const width = this.getWidth() / 2;
+      const xDelta = width * Math.cos(angle) - height * Math.sin(angle);
+      const yDelta = width * Math.sin(angle) + height * Math.cos(angle);
+
+      this._pixiObject.position.x = this._object.x + xDelta;
+      this._pixiObject.position.y = this._object.y + yDelta;
     }
 
     updateAngle(): void {

Extensions/BitmapText/bitmaptextruntimeobject-pixi-renderer.ts

@@ -149,8 +149,14 @@ namespace gdjs {
     }
 
     updatePosition(): void {
-      this._pixiObject.position.x = this._object.x + this.getWidth() / 2;
-      this._pixiObject.position.y = this._object.y + this.getHeight() / 2;
+      const angle = gdjs.toRad(this._object.angle);
+      const height = this.getHeight() / 2;
+      const width = this.getWidth() / 2;
+      const xDelta = width * Math.cos(angle) - height * Math.sin(angle);
+      const yDelta = width * Math.sin(angle) + height * Math.cos(angle);
+
+      this._pixiObject.position.x = this._object.x + xDelta;
+      this._pixiObject.position.y = this._object.y + yDelta;
     }
 
     updateAngle(): void {
@@ -169,5 +175,6 @@ namespace gdjs {
       return this._pixiObject.textHeight * this.getScale();
     }
   }
-  export const BitmapTextRuntimeObjectRenderer = BitmapTextRuntimeObjectPixiRenderer;
+  export const BitmapTextRuntimeObjectRenderer =
+    BitmapTextRuntimeObjectPixiRenderer;
 }

Extensions/TextObject/textruntimeobject-pixi-renderer.ts

@@ -94,8 +94,14 @@ namespace gdjs {
     }
 
     updatePosition(): void {
-      this._text.position.x = this._object.x + this._text.width / 2;
-      this._text.position.y = this._object.y + this._text.height / 2;
+      const angle = gdjs.toRad(this._object.angle);
+      const width = this._text.width / 2;
+      const height = this._text.height / 2;
+      const xDelta = width * Math.cos(angle) - height * Math.sin(angle);
+      const yDelta = height * Math.cos(angle) + width * Math.sin(angle);
+
+      this._text.position.x = this._object.x + xDelta;
+      this._text.position.y = this._object.y + yDelta;
     }
 
     updateAngle(): void {

GDJS/Runtime/runtimeobject.ts

@@ -1102,7 +1102,12 @@ namespace gdjs {
      * @return the X position of the object center, relative to `getDrawableX()`.
      */
     getCenterX(): float {
-      return this.getWidth() / 2;
+      const halfWidth = this.getWidth() / 2;
+      const halfHeight = this.getHeight() / 2;
+      return (
+        Math.sqrt(halfWidth * halfWidth + halfHeight * halfHeight) *
+        Math.cos(gdjs.toRad(this.getAngle()))
+      );
     }
 
     /**
@@ -1112,7 +1117,12 @@ namespace gdjs {
      * @return the Y position of the object center, relative to `getDrawableY()`.
      */
     getCenterY(): float {
-      return this.getHeight() / 2;
+      const halfWidth = this.getWidth() / 2;
+      const halfHeight = this.getHeight() / 2;
+      return (
+        Math.sqrt(halfWidth * halfWidth + halfHeight * halfHeight) *
+        Math.sin(gdjs.toRad(this.getAngle()))
+      );
     }
 
     /**
@@ -1394,10 +1404,13 @@ namespace gdjs {
         this.hitBoxes[0].vertices[3][0] = 0 - centerX;
         this.hitBoxes[0].vertices[3][1] = height - centerY;
       }
-      this.hitBoxes[0].rotate(gdjs.toRad(this.getAngle()));
+      const angle = gdjs.toRad(this.getAngle());
+      this.hitBoxes[0].rotate(angle);
+      const xDelta = centerX * Math.cos(angle) - centerY * Math.sin(angle);
+      const yDelta = centerY * Math.cos(angle) + centerX * Math.sin(angle);
       this.hitBoxes[0].move(
-        this.getDrawableX() + centerX,
-        this.getDrawableY() + centerY
+        this.getDrawableX() + xDelta,
+        this.getDrawableY() + yDelta
       );
     }