egroupware_official/phpgwapi/js/dynapi/fx/motionx.js

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/*
DynAPI Distribution
MotionX Class by Raymond Irving (http://dyntools.shorturl.com)
The DynAPI Distribution is distributed under the terms of the GNU LGPL license.
requires: Dynlayer
*/
MotionX = {}; // used by dynapi.library
DynLayer.prototype.makeSolid=function(){
this.isHard=true;
this._collideX=this.x;
this._collideY=this.x;
this.collideEvent ={
onlocationchange:function(e) {
var me=e.getSource();
var dirX='',dirY='';
// get direction
if (me._collideX!=me.x) {
if (me._collideX<me.x){dirX="E"}else{dirX="W"};
}
if (me._collideY!=me.y){
if (me._collideY<me.y){dirY="S"}else{dirY="N"};
}
// get angle direction
me._setCollideAngleDirection(me._collideX,me._collideY,me.x,me.y);
me._collideX=me.x;
me._collideY=me.y;
me._collideDirection=dirY+dirX;
me._checkForCollision();
}
}
this.addEventListener(this.collideEvent);
};
DynLayer.prototype._setCollideAngleDirection = function(x1,y1,x2,y2) {
var distx = (x2-x1),disty = (y1-y2),angle;
//if (distx==0 && disty==0) return 0;
var rad=Math.abs(Math.atan2(disty,distx))
if (disty>=0) {
if (distx>=0) angle = 90-(rad*180/Math.PI);
else angle = 270+(180-(rad*180/Math.PI));
}else{
angle = 90+(rad*180/Math.PI);
}
this._collideAngle=Math.ceil(angle);
};
DynLayer.prototype._checkForCollision=function(){
if (!this.parent.children.length>0) return false;
var ch,chX,sX,sY,colX1,colX2,colY1,colY2,n1,n2;
this.collideObject==null;
for (var i in this.parent.children) {
ch=this.parent.children[i];
if (ch!=this && ch.isHard==true) {
chX=ch.x;
chY=ch.y;
sX=this.x;
sY=this.y;
colX1=(sX>=chX && sX<=chX+ch.w);
colX2=(chX>=sX && chX<=sX+this.w);
colY1=(sY>=chY && sY<=chY+ch.h);
colY2=(chY>=sY && chY<=sY+this.h);
if ((colX1 || colX2) && (colY1 || colY2)) {
if (this._collideDirection=='NE') {
n1=((chY+ch.h)-this.y);n2=((sX+this.w)-chX);
if (n1<n2) {face="S"}else{face="W"}
}else if (this._collideDirection=='NW') {
n1=((chY+ch.h)-this.y);n2=((chX+ch.w)-sX);
if (n1<n2) {face="S"}else{face="E"}
}else if (this._collideDirection=='SE') {
n1=((sY+this.h)-ch.y);n2=((sX+this.w)-chX);
if (n1<n2) {face="N"}else{face="W"}
}else if (this._collideDirection=='SW') {
n1=((sY+this.h)-ch.y);n2=((chX+ch.w)-sX);
if (n1<n2) {face="N"}else{face="E"}
}else if (this._collideDirection=='E') {
face="W";
}else if (this._collideDirection=='W') {
face="E";
}else if (this._collideDirection=='N') {
face="S";
}else if (this._collideDirection=='S') {
face="N";
}
ch._impactSide=face;
if (face=="W"){this._impactSide="E"}
if (face=="E"){this._impactSide="W"}
if (face=="N"){this._impactSide="S"}
if (face=="S"){this._impactSide="N"}
this._collideObject=ch;
this.invokeEvent("collide");
ch._collideObject=this;
ch.invokeEvent("collide");
}
}
}
return false;
};
DynLayer.prototype.getImpactSide=function(){
return this._impactSide;
}
DynLayer.prototype.getObstacle=function(){
return this._collideObject;
}
DynLayer.prototype.getDirection=function(){
return this._collideDirection;
}
DynLayer.prototype.getDirectionAngle=function(){
return this._collideAngle;
}