plunkerでplaycanvas その3

#概要

plunkerでplaycanvasやってみた。
物理エンジンやってみた。

#参考にしたページ。

https://github.com/cx20/jsdo.it-archives/tree/master/tag/playcanvas

#写真

![image.png](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/18104/1ce90032-314e-2725-8f22-d769fc3ddecd.png)


#サンプルコード


```
var canvas = document.getElementById("application-canvas");
var application = new pc.fw.Application(canvas);
application.start();
application.setCanvasFillMode(pc.fw.FillMode.FILL_WINDOW);
application.setCanvasResolution(pc.fw.ResolutionMode.AUTO);
application.context.scene.ambientLight = new pc.Color(0.1, 0.2, 0.3);
application.context.systems.rigidbody.setGravity(0, -9.8, 0);
function createMaterial(color) {
    var material = new pc.scene.PhongMaterial();
    material.diffuse = color;
    material.update()
    return material;
}
var white = createMaterial(new pc.Color(1, 1, 1));
var red = createMaterial(new pc.Color(1, 0, 0));
var green = createMaterial(new pc.Color(0, 1, 0));
var blue = createMaterial(new pc.Color(0, 0, 1));
var yellow = createMaterial(new pc.Color(1, 1, 0));
var floor = new pc.fw.Entity();
application.context.systems.model.addComponent(floor, {
    type: "box",
});
floor.model.material = white;
floor.setLocalScale(10, 1, 10);
application.context.systems.rigidbody.addComponent(floor, {
    type: "static",
    restitution: 0.5
});
application.context.systems.collision.addComponent(floor, {
    type: "box",
    halfExtents: new pc.Vec3(5, 0.5, 5)
});
application.context.root.addChild(floor);
var light = new pc.fw.Entity();
application.context.systems.light.addComponent(light, {
    type: "directional",
    color: new pc.Color(1, 1, 1),
    castShadows: true,
    shadowResolution: 2048
});
light.setLocalEulerAngles(45, 30, 0);
application.context.root.addChild(light);
var camera = new pc.fw.Entity();
application.context.systems.camera.addComponent(camera, {
    clearColor: new pc.Color(0.5, 0.5, 0.8),
    farClip: 50
});
application.context.root.addChild(camera);
camera.translate(0, 10, 15);
camera.lookAt(0, 0, 0);
var boxTemplate = new pc.fw.Entity();
application.context.systems.model.addComponent(boxTemplate, {
    type: "box",
    castShadows: true,
    enabled: false
});
application.context.systems.rigidbody.addComponent(boxTemplate, {
    type: "dynamic",
    mass: 50,
    restitution: 0.5
});
application.context.systems.collision.addComponent(boxTemplate, {
    type: "box",
    halfExtents: new pc.Vec3(0.5, 0.5, 0.05)
});
boxTemplate.setLocalScale(1.0, 1.0, 0.2);

var part0 = new pc.fw.Entity();
application.context.systems.model.addComponent(part0, { 
  type: "box", 
  castShadows: true 
});
part0.setLocalScale(1.0, 0.2, 1.0);
part0.setLocalPosition(0.0, 0.5, 0.0);
boxTemplate.addChild(part0);

var part1 = new pc.fw.Entity();
application.context.systems.model.addComponent(part1, { 
  type: "cylinder", 
  castShadows: true 
});
part1.setLocalScale(0.2, 1.0, 1.0);
part1.setLocalPosition(0.5, 0.0, 0.0);
boxTemplate.addChild(part1);
var templates = [boxTemplate];
templates.forEach(function(template) {
    template.enabled = false;
});
var timer = 0;
var count = 40;
application.on("update", function(dt) {
    if (count > 0) 
    {
        timer -= dt;
        if (timer <= 0) 
        {
            count--;
            timer = 0.2;
            var template = templates[Math.floor(pc.math.random(0, templates.length))];
            var clone = template.clone();
            clone.enabled = true;
            application.context.root.addChild(clone);
            clone.setLocalPosition(pc.math.random(-3, 3), 10, pc.math.random(-1, 1));
            clone.rigidbody.syncEntityToBody();
        }
    }
});




```

#成果物

https://embed.plnkr.co/plunk/MruR0b4FPUrFQ4NO

以上。