Papervision3D: understanding Plane object – part 4

核心提示：Understanding planes has never been so much fun, so here we go with the 4th part.This is full of new features, such as:* Making interactive objects* Giving obje

Understanding planes has never been so much fun, so here we go with the 4th part.

This is full of new features, such as:

* Making interactive objects

* Giving objects a name

* Changing object colors on the fly

This is the same old script as seen in Papervision3D: understanding Plane object – part 3 and previous tutorials, with some modifications.

package　{
　import　flash.display.Sprite;
　import　flash.events.Event;
　import　org.papervision3d.cameras.Camera3D;
　import　org.papervision3d.render.BasicRenderEngine;
　import　org.papervision3d.scenes.Scene3D;
　import　org.papervision3d.view.Viewport3D;
　import　org.papervision3d.objects.primitives.Plane;
　import　org.papervision3d.materials.ColorMaterial;
　import　org.papervision3d.events.InteractiveScene3DEvent;
　public　class　papervision　extends　Sprite　{
　　public　var　viewport:Viewport3D=new　Viewport3D(500,400,false,true);
　　public　var　scene:Scene3D　=　new　Scene3D();
　　public　var　camera:Camera3D　=　new　Camera3D();
　　public　var　renderer:BasicRenderEngine　=　new　BasicRenderEngine();
　　public　var　back_material:ColorMaterial=new　ColorMaterial(Math.random()*0xffffff);
　　public　var　front_material:ColorMaterial=new　ColorMaterial(Math.random()*0xffffff);
　　public　var　front_plane:Plane=new　Plane(front_material,200,300,4,5);
　　public　var　back_plane:Plane=new　Plane(back_material,200,300,4,5);
　　public　var　rotation_speed=4;
　　public　function　papervision()　{
　　　addChild(viewport);
　　　camera.focus=100;
　　　camera.zoom=10;
　　　back_plane.rotationY=180;
　　　front_material.interactive=true;
　　　back_material.interactive=true;
　　　scene.addChild(front_plane);
　　　scene.addChild(back_plane);
　　　front_plane.name　=　"FRONT";
　　　back_plane.name　=　"BACK";
　　　back_plane.addEventListener(InteractiveScene3DEvent.OBJECT_PRESS,on_plane_clicked);
　　　front_plane.addEventListener(InteractiveScene3DEvent.OBJECT_PRESS,on_plane_clicked);
　　　addEventListener(Event.ENTER_FRAME,　render);
　　}
　　public　function　render(e:Event)　{
　　　front_plane.yaw(rotation_speed);
　　　back_plane.yaw(rotation_speed);
　　　renderer.renderScene(scene,　camera,　viewport);
　　}
　　public　function　on_plane_clicked(e:InteractiveScene3DEvent)　{
　　　rotation_speed*=-1;
　　　switch　(e.displayObject3D.name)　{
　　　　case　"FRONT"　:
　　　　　front_material.fillColor=Math.random()*0xffffff;
　　　　　break;
　　　　case　"BACK"　:
　　　　　back_material.fillColor=Math.random()*0xffffff;
　　　　　break;
　　　}
　　}
　}
}