fix(gameengine): BufferedGroup scaling down

Author: CGhbouvet

engine/modules/entities/src/main/resources/view/entity-module/BufferedGroup.js

@@ -1,21 +1,25 @@
 import { getRenderer, flagForDestructionOnReinit } from '../core/rendering.js'
-import { WIDTH, HEIGHT } from '../core/constants.js'
 import { ContainerBasedEntity } from './ContainerBasedEntity.js'
 
 /* global PIXI */
 
 export class BufferedGroup extends ContainerBasedEntity {
   initDisplay () {
     super.initDisplay()
-    this.gameTexture = PIXI.RenderTexture.create(WIDTH, HEIGHT)
-    flagForDestructionOnReinit(this.gameTexture)
-    this.graphics = new PIXI.Sprite(this.gameTexture)
     this.buffer = new PIXI.Container()
+    this.gameTexture = null
+    this.graphics = new PIXI.Sprite()
     this.needsRender = true
   }
 
   postUpdate () {
     if (this.needsRender) {
+      if (this.gameTexture == null) {
+        this.gameTexture = PIXI.RenderTexture.create(Math.min(this.buffer.width, 4096), Math.min(this.buffer.height, 4096))
+        flagForDestructionOnReinit(this.gameTexture)
+        this.graphics.texture = this.gameTexture
+      }
+
       getRenderer().render(this.buffer, this.gameTexture)
       this.needsRender = false
     }