[Optimisation] updateTransform - Version imprimable

Code :

PIXI.DisplayObject.prototype.updateTransform = function()

{

    // TODO OPTIMIZE THIS!! with dirty

    if(this.rotation !== this.rotationCache)

    {



        this.rotationCache = this.rotation;

        this._sr =  Math.sin(this.rotation);

        this._cr =  Math.cos(this.rotation);

    }



   // var localTransform = this.localTransform//.toArray();

    var parentTransform = this.parent.worldTransform;//.toArray();

    var worldTransform = this.worldTransform;//.toArray();



    var px = this.pivot.x;

    var py = this.pivot.y;



    var a00 = this._cr * this.scale.x,

        a01 = -this._sr * this.scale.y,

        a10 = this._sr * this.scale.x,

        a11 = this._cr * this.scale.y,

        a02 = this.position.x - a00 * px - py * a01,

        a12 = this.position.y - a11 * py - px * a10,

        b00 = parentTransform.a, b01 = parentTransform.b,

        b10 = parentTransform.c, b11 = parentTransform.d;



    worldTransform.a = b00 * a00 + b01 * a10;

    worldTransform.b = b00 * a01 + b01 * a11;

    worldTransform.tx = b00 * a02 + b01 * a12 + parentTransform.tx;



    worldTransform.c = b10 * a00 + b11 * a10;

    worldTransform.d = b10 * a01 + b11 * a11;

    worldTransform.ty = b10 * a02 + b11 * a12 + parentTransform.ty;



    this.worldAlpha = this.alpha * this.parent.worldAlpha;

};

Code :

            scope.sprite[k][l].updateTransform = function(){

                

                    var i = this.idI;

                    var j = this.idJ;

                    var n = scope.n;

                   

                    

                        var w = scope.w;

                        var h = scope.h;

                        var xm = scope.xm;

                        var ym = scope.ym;

                        var zm = scope.zm;    

                        var c = Math.cos(scope.angle);

                        var s = Math.sin(scope.angle);

                        var axe = scope.axe;

                        var ux = axe[0]/Math.sqrt(axe[0]*axe[0]+axe[1]*axe[1]+axe[2]*axe[2]);

                        var uy = axe[1]/Math.sqrt(axe[0]*axe[0]+axe[1]*axe[1]+axe[2]*scope.axe[2]);

                        var uz = axe[2]/Math.sqrt(axe[0]*axe[0]+axe[1]*axe[1]+axe[2]*axe[2]);

                    

                    

                        var r00 = ux*ux+(1-ux*ux)*c,

                            r01 = ux*uy*(1-c)-uz*s,

                            r02 = ux*uz*(1-c)+uy*s,

                            r10 = ux*uy*(1-c)+uz*s,

                            r11 = uy*uy+(1-uy*uy)*c,

                            r12 = uy*uz*(1-c)-ux*s,

                            r20 = ux*uz*(1-c)-uy*s,

                            r21 = uy*uz*(1-c)+ux*s,

                            r22 = uz*uz+-(1-uz*uz)*c;

                    

                        var x = -r00*w/2-r01*h/2+xm;

                        var y = -r10*w/2-r11*h/2+ym;

                        var z = -r20*w/2-r21*h/2+zm;

                        

                        var imagetriangle = [transformPoint([r00*(-w/2+i*(w/n))+r01*(h/2-(n-j)*h/n)+r02*0+xm,r10*(-w/2+i*(w/n))+r11*(h/2-(n-j)*h/n)+r12*0+ym,r20*(-w/2+i*(w/n))+r21*(h/2-(n-j)*h/n)+r22*0+zm]),transformPoint([r00*(-w/2+(i+1)*(w/n))+r01*(h/2-(n-j)*h/n)+r02*0+xm,r10*(-w/2+(i+1)*(w/n))+r11*(h/2-(n-j)*h/n)+r12*0+ym,r20*(-w/2+(i+1)*(w/n))+r21*(h/2-(n-j)*h/n)+r22*0+zm]),transformPoint([r00*(-w/2+i*(w/n))+r01*(h/2-(n-j-1)*h/n)+r02*0+xm,r10*(-w/2+i*(w/n))+r11*(h/2-(n-j-1)*h/n)+r12*0+ym,r20*(-w/2+i*(w/n))+r21*(h/2-(n-j-1)*h/n)+r22*0+zm])];

                    

                        this.myMask.clear();

                        this.myMask.beginFill();

                        this.myMask.moveTo(imagetriangle[0][0],imagetriangle[0][1]);

                        this.myMask.lineTo(imagetriangle[1][0],imagetriangle[1][1]);

                        this.myMask.lineTo(imagetriangle[2][0],imagetriangle[2][1]);

                        this.myMask.endFill();



                        this.position.x = imagetriangle[2][0]+(n-j-1)*(imagetriangle[2][0]-imagetriangle[0][0])-i*(imagetriangle[1][0]-imagetriangle[0][0]);   

                        this.position.y = imagetriangle[2][1]-i*(imagetriangle[1][1]-imagetriangle[0][1])+(n-j-1)*(imagetriangle[2][1]-imagetriangle[0][1]);

                        

                        var parentTransform = this.parent.worldTransform;

                        var worldTransform = this.worldTransform;

                        

                        

                        var a00 = (imagetriangle[1][0]-imagetriangle[0][0])*n/w,

                            a10 = (imagetriangle[1][1]-imagetriangle[0][1])*n/w,

                            a01 = -(imagetriangle[2][0]-imagetriangle[0][0])*n/h,

                            a11 = -(imagetriangle[2][1]-imagetriangle[0][1])*n/h,

                            a02 = this.position.x,

                            a12 = this.position.y,

                            b00 = parentTransform.a, b01 = parentTransform.b,

                            b10 = parentTransform.c, b11 = parentTransform.d;

                        

                        worldTransform.a = b00 * a00 + b01 * a10;

                        worldTransform.b = b00 * a01 + b01 * a11;

                        worldTransform.tx = b00 * a02 + b01 * a12 + parentTransform.tx;

                        

                        worldTransform.c = b10 * a00 + b11 * a10;

                        worldTransform.d = b10 * a01 + b11 * a11;

                        worldTransform.ty = b10 * a02 + b11 * a12 + parentTransform.ty;

                        

                        this.worldAlpha = this.alpha * this.parent.worldAlpha;    

                        

                        

                    

                }