QuickBox2D poly behaviour vs box or circle
- by Ben Kanizay
Hi I've played a little with Box2D before and have just started using QuickBox2D which makes things heaps easier. I am however getting different behaviour with a specific poly shape than I am with a box. All other properties are the same. I've included 3 simple examples and their source below.
What I really want to work is Example 1 with both objects as poly. As you can see, it seems like the 'paddle' poly is the one that's failing - the 'ball' (whether it's a poly or circle) just falls straight through it instead of bouncing off as it does with a box 'paddle' object. Would appreciate some help or insight.
As I can only post one line at this stage, the swf previews of the 3 examples can be seen here
Example 1 source:
package {
import com.actionsnippet.qbox.QuickBox2D;
import com.actionsnippet.qbox.QuickObject;
import flash.display.MovieClip;
public class Eg1 extends MovieClip {
private var sim:QuickBox2D;
private var paddle:QuickObject;
private var ball:QuickObject;
public function Eg1() {
this.sim = new QuickBox2D(this);
this.paddle = this.sim.addPoly({
x:13,
y:19,
angle:0,
density:0,
draggable:false,
isBullet:true,
verts:[[-3.84,-0.67,-2.84,-1,-2.17,-0.33,2.17,-0.33,2.84,-1,3.84,-0.67,2.84,1,-2.51,1]]
});
this.ball = this.sim.addPoly({
x:13,
y:1,
restitution:1,
friction:1,
draggable:false,
isBullet:true,
verts:[[-0.34,-1,0.34,-1,0.67,-0.33,0.67,0.33,0.34,1,-0.34,1,-0.67,0.33,-0.67,-0.33]]
});
this.sim.start();
}
}}
Example 2 source:
package {
import com.actionsnippet.qbox.QuickBox2D;
import com.actionsnippet.qbox.QuickObject;
import flash.display.MovieClip;
public class Eg2 extends MovieClip {
private var sim:QuickBox2D;
private var paddle:QuickObject;
private var ball:QuickObject;
public function Eg2() {
this.sim = new QuickBox2D(this);
this.paddle = this.sim.addBox({
x:13,
y:19,
angle:0,
density:0,
draggable:false,
isBullet:true,
width:8
});
this.ball = this.sim.addPoly({
x:13,
y:1,
restitution:1,
friction:1,
draggable:false,
isBullet:true,
verts:[[-0.34,-1,0.34,-1,0.67,-0.33,0.67,0.33,0.34,1,-0.34,1,-0.67,0.33,-0.67,-0.33]]
});
this.sim.start();
}
}}
Example 3 source:
package {
import com.actionsnippet.qbox.QuickBox2D;
import com.actionsnippet.qbox.QuickObject;
import flash.display.MovieClip;
public class Eg3 extends MovieClip {
private var sim:QuickBox2D;
private var paddle:QuickObject;
private var ball:QuickObject;
public function Eg3() {
this.sim = new QuickBox2D(this);
this.paddle = this.sim.addPoly({
x:13,
y:19,
angle:0,
density:0,
draggable:false,
isBullet:true,
verts:[[-3.84,-0.67,-2.84,-1,-2.17,-0.33,2.17,-0.33,2.84,-1,3.84,-0.67,2.84,1,-2.51,1]]
});
this.ball = this.sim.addCircle({
x:13,
y:1,
restitution:1,
friction:1,
draggable:false,
isBullet:true,
radius:1
});
this.sim.start();
}
}}
