r3-legacy/src/game-lib-component-mesh-permutation.js

GameLib.D3.ComponentMeshPermutation = function(
    componentId,
    positionOffset,
    quaternionOffset,
    scaleOffset
) {
    this.componentId = componentId || GameLib.D3.Tools.RandomId();
    this.parentEntity = null;

    this.positionOffset = positionOffset || new GameLib.D3.Vector3(0, 0, 0);
    this.quaternionOffset = quaternionOffset || new GameLib.D3.Quaternion(0, 0, 0, 1);
    this.scaleOffset = scaleOffset || new GameLib.D3.Vector3(0, 0, 0);

    // Todo: this should be executed somewhere in game-lib-z, so that we don't execute it on every construction of an object.
    GameLib.D3.Utils.Extend(GameLib.D3.ComponentMeshPermutation, GameLib.D3.ComponentInterface);
};

if(typeof THREE != "undefined") {
    ComponentMeshPermutation_quaternion = new THREE.Quaternion();
    ComponentMeshPermutation_quaternionCopy = new THREE.Quaternion();
    ComponentMeshPermutation_position = new THREE.Vector3();
    ComponentMeshPermutation_scale = new THREE.Vector3();
    ComponentMeshPermutation_offsetQuaternion = new THREE.Quaternion();
    ComponentMeshPermutation_offsetPosition = new THREE.Vector3();
    ComponentMeshPermutation_offsetScale = new THREE.Vector3();
}

///////////////////////// Methods to override //////////////////////////
GameLib.D3.ComponentMeshPermutation.prototype.onLateUpdate = function(
    deltaTime,
    parentEntity
) {

   if(parentEntity && parentEntity.mesh) {
       ComponentMeshPermutation_quaternion.copy(parentEntity.mesh.quaternion);
       ComponentMeshPermutation_quaternionCopy.copy(ComponentMeshPermutation_quaternion);
       ComponentMeshPermutation_position.copy(parentEntity.mesh.position);

       ComponentMeshPermutation_offsetQuaternion.copy(this.quaternionOffset);
       ComponentMeshPermutation_quaternion = ComponentMeshPermutation_quaternion.multiply(ComponentMeshPermutation_offsetQuaternion).normalize();

       ComponentMeshPermutation_offsetPosition.copy(this.positionOffset);
       ComponentMeshPermutation_position = ComponentMeshPermutation_position.add(ComponentMeshPermutation_offsetPosition.applyQuaternion(ComponentMeshPermutation_quaternionCopy));

       ComponentMeshPermutation_scale.copy(parentEntity.mesh.scale);

       ComponentMeshPermutation_offsetScale.copy(this.scaleOffset);
       ComponentMeshPermutation_scale = ComponentMeshPermutation_scale.add(ComponentMeshPermutation_offsetScale);

       parentEntity.mesh.position.copy(ComponentMeshPermutation_position);
       parentEntity.mesh.quaternion.copy(ComponentMeshPermutation_quaternion);
       parentEntity.mesh.scale.copy(ComponentMeshPermutation_scale);
   }
};