Question

嗨我之前和Box2D玩了一点，刚刚开始使用QuickBox2D，这让事情更容易。然而，我使用特定的多边形形状与使用盒子时的行为不同。所有其他属性都是相同的。我在下面列出了3个简单示例及其来源。

我真正想要的是示例1，两个对象都是poly。正如你所看到的，看起来'paddle'poly是失败的那个 - '球'（无论是一个多边形还是圆形）直接穿过它而不是像一个盒子'桨'对象一样弹跳。希望得到一些帮助或见解。

由于我只能在此阶段发布一行，the swf previews of the 3 examples can be seen here

示例1来源：

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();
    }

}}

示例2来源：

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();
    }

}}

示例3来源：

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();
    }

}}

Answer 1

是的。我用一组凸起的对象创建了相同的“形状”，它工作得很好。

QuickBox2D聚合行为与框或圆

1 个答案: