android游戏引擎libgdx使用教程9：libgdx中box2d的用法

鸡啄米 • 11年前扫码分享

java代码

package&com.cnblogs.htynkn.listener;&&
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import&com.badlogic.gdx.applicationlistener;&&&
import&com.badlogic.gdx.gdx;&&&
import&com.badlogic.gdx.graphics.gl10;&&&
import&com.badlogic.gdx.graphics.orthographiccamera;&&&
import&com.badlogic.gdx.math.vector2;&&&
import&com.badlogic.gdx.physics.box2d.body;&&&
import&com.badlogic.gdx.physics.box2d.bodydef;&&&
import&com.badlogic.gdx.physics.box2d.box2ddebugrenderer;&&&
import&com.badlogic.gdx.physics.box2d.circleshape;&&&
import&com.badlogic.gdx.physics.box2d.world;&&&
import&com.badlogic.gdx.physics.box2d.bodydef.bodytype;&&
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public&class&demogame&implements&applicationlistener&{&&
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protected&orthographiccamera&camera;&&&
protected&box2ddebugrenderer&renderer;&//&测试用绘制器&&&
private&world&world;&&
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@override&&&
public&void&create()&{&&&
camera&=&new&orthographiccamera(48,&32);&&&
camera.position.set(0,&15,&0);&&&
renderer&=&new&box2ddebugrenderer();&&&
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world&=&new&world(new&vector2(0,&-9.8f),&true);&//&一般标准重力场&&&
bodydef&bd&=&new&bodydef();&//声明物体定义&&&
bd.position.set(2f,&2f);&&&
bd.type=bodytype.dynamicbody;&&&
body&b&=&world.createbody(bd);&//通过world创建一个物体&&&
circleshape&c&=&new&circleshape();&//创建一个形状（圆）&&&
c.setradius(1f);&//设置半径&&&
b.createfixture(c,&1f);&//将形状和密度赋给物体&&&
}&&
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@override&&&
public&void&dispose()&{&&&
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renderer.dispose();&&&
world.dispose();&&
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renderer&=&null;&&&
world&=&null;&&&
}&&
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@override&&&
public&void&pause()&{&&&
//&todo&auto-generated&method&stub&&
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}&&
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@override&&&
public&void&render()&{&&&
world.step(gdx.app.getgraphics().getdeltatime(),&3,&3);&&&
gl10&gl&=&gdx.app.getgraphics().getgl10();&&&
gl.glclear(gl10.gl_color_buffer_bit);&&&
camera.update();&&&
camera.apply(gl);&&&
renderer.render(world,&camera.combined);&&&
}&&
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@override&&&
public&void&resize(int&width,&int&height)&{&&&
//&todo&auto-generated&method&stub&&
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}&&
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@override&&&
public&void&resume()&{&&&
//&todo&auto-generated&method&stub&&
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}&&
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}&&