Merge pull request #673 from A-kirami/fix/live2d-pivot-origin

fix: correct pivot point and positioning for Live2D figure

Author: MakinoharaShoko

packages/webgal/src/Core/controller/stage/pixi/PixiController.ts

@@ -662,22 +662,29 @@ export default class PixiStage {
             models.forEach((model) => {
               const scaleX = stageWidth / model.width;
               const scaleY = stageHeight / model.height;
-              const targetScale = Math.min(scaleX, scaleY) * 1.5;
+              const targetScale = Math.min(scaleX, scaleY);
               const targetWidth = model.width * targetScale;
-              // const targetHeight = model.height * targetScale;
-
-              model.scale.set(targetScale);
+              const targetHeight = model.height * targetScale;
+              model.scale.x = targetScale;
+              model.scale.y = targetScale;
               model.anchor.set(0.5);
-              model.position.x = stageWidth / 2;
-              model.position.y = stageHeight / 1.2;
+              model.position.x = 0;
+              model.position.y = stageHeight / 2;
 
-              if (pos === 'left') {
-                model.position.x = targetWidth / 2;
+              let baseY = stageHeight / 2;
+              if (targetHeight < stageHeight) {
+                baseY = stageHeight / 2 + stageHeight - targetHeight / 2;
               }
-              if (pos === 'right') {
-                model.position.x = stageWidth - targetWidth / 2;
+              thisFigureContainer.setBaseY(baseY);
+              if (pos === 'center') {
+                thisFigureContainer.setBaseX(stageWidth / 2);
+              } else if (pos === 'left') {
+                thisFigureContainer.setBaseX(targetWidth / 2);
+              } else if (pos === 'right') {
+                thisFigureContainer.setBaseX(stageWidth - targetWidth / 2);
               }
 
+              thisFigureContainer.pivot.set(0, stageHeight / 2);
               let motionToSet = motion;
               let animation_index = 0;
               let priority_number = 3;