Fixing issues with left/right pick

Babylon/babylon.scene.js

@@ -220,16 +220,16 @@
 
                 if (pickResult.hit) {
                     if (pickResult.pickedMesh.actionManager) {
-                        switch (evt.buttons) {
-                            case 1:
+                        switch (evt.button) {
+                            case 0:
                                 pickResult.pickedMesh.actionManager.processTrigger(BABYLON.ActionManager.OnLeftPickTrigger, BABYLON.ActionEvent.CreateNew(pickResult.pickedMesh));
                                 break;
+                            case 1:
+                                pickResult.pickedMesh.actionManager.processTrigger(BABYLON.ActionManager.OnCenterPickTrigger, BABYLON.ActionEvent.CreateNew(pickResult.pickedMesh));
+                                break;
                             case 2:
                                 pickResult.pickedMesh.actionManager.processTrigger(BABYLON.ActionManager.OnRightPickTrigger, BABYLON.ActionEvent.CreateNew(pickResult.pickedMesh));
                                 break;
-                            case 3:
-                                pickResult.pickedMesh.actionManager.processTrigger(BABYLON.ActionManager.OnCenterPickTrigger, BABYLON.ActionEvent.CreateNew(pickResult.pickedMesh));
-                                break;
                         }
                         pickResult.pickedMesh.actionManager.processTrigger(BABYLON.ActionManager.OnPickTrigger, BABYLON.ActionEvent.CreateNew(pickResult.pickedMesh));
                     }

Babylon/babylon.scene.ts

@@ -287,16 +287,16 @@
 
                 if (pickResult.hit) {
                     if (pickResult.pickedMesh.actionManager) {
-                        switch (evt.buttons) {
-                            case 1:
+                        switch (evt.button) {
+                            case 0:
                                 pickResult.pickedMesh.actionManager.processTrigger(BABYLON.ActionManager.OnLeftPickTrigger, ActionEvent.CreateNew(pickResult.pickedMesh));
                                 break;
+                            case 1:
+                                pickResult.pickedMesh.actionManager.processTrigger(BABYLON.ActionManager.OnCenterPickTrigger, ActionEvent.CreateNew(pickResult.pickedMesh));
+                                break;
                             case 2:
                                 pickResult.pickedMesh.actionManager.processTrigger(BABYLON.ActionManager.OnRightPickTrigger, ActionEvent.CreateNew(pickResult.pickedMesh));
                                 break;
-                            case 3:
-                                pickResult.pickedMesh.actionManager.processTrigger(BABYLON.ActionManager.OnCenterPickTrigger, ActionEvent.CreateNew(pickResult.pickedMesh));
-                                break;
                         }
                         pickResult.pickedMesh.actionManager.processTrigger(BABYLON.ActionManager.OnPickTrigger, ActionEvent.CreateNew(pickResult.pickedMesh));
                     }