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feat: physics.bindView add layers and group config for collision
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@06wj
06wj committed Jun 20, 2016
1 parent 44111fa commit 7fb2c16
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Showing 6 changed files with 230 additions and 44 deletions.
66 changes: 49 additions & 17 deletions build/physics/physics.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6214,7 +6214,9 @@ SimpleMotor.prototype.getImpulse = function()
* @mixin PhysicsViewMixin
*/
var PhysicsViewMixin = {
space:null,
body:null,
shape:null,
/**
* 施加冲量
* @memberOf PhysicsViewMixin
Expand Down Expand Up @@ -6243,6 +6245,9 @@ SimpleMotor.prototype.getImpulse = function()
*/
setPosition:function(x, y){
this.body.setPos(new cp.Vect(x, y));
if(this.body.isStaticBody){
this.space.needReindexStatic = true;
}
},
/**
* 设置角度
Expand All @@ -6251,6 +6256,9 @@ SimpleMotor.prototype.getImpulse = function()
*/
setRotation:function(rotation){
this.body.setAngle(rotation * DEG2RAD);
if(this.body.isStaticBody){
this.space.needReindexStatic = true;
}
},
/**
* 重写render
Expand Down Expand Up @@ -6301,20 +6309,20 @@ SimpleMotor.prototype.getImpulse = function()
* @private
*/
_init:function(gravity, cfg){
var world = new cp.Space();
world.iterations = 20;
world.gravity = new cp.Vect(gravity.x, gravity.y);
world.collisionSlop = 0.5;
world.sleepTimeThreshold = 0.5;
var space = new cp.Space();
space.iterations = 20;
space.gravity = new cp.Vect(gravity.x, gravity.y);
space.collisionSlop = 0.5;
space.sleepTimeThreshold = 0.5;

if(cfg){
for(var i in cfg){
world[i] = cfg[i];
space[i] = cfg[i];
}
}

this.space = world;
this.staticBody = world.staticBody;
this.space = space;
this.staticBody = space.staticBody;

this._deleteBodies = [];
},
Expand All @@ -6324,19 +6332,23 @@ SimpleMotor.prototype.getImpulse = function()
* @param {Number} dt 间隔
*/
tick:function(dt){
var world = this.space;
var space = this.space;
dt = dt > 32?16:dt;

world.step(dt * .001);
if(space.needReindexStatic){
space.reindexStatic();
space.needReindexStatic = false;
}
space.step(dt * .001);

//delete bodies and shapes
for(var i = this._deleteBodies.length - 1;i >= 0;i --){
var body = this._deleteBodies[i];
var shapeList = body.shapeList;
for(var j = shapeList.length - 1;j >= 0;j --){
world.removeShape(shapeList[j]);
space.removeShape(shapeList[j]);
}
world.removeBody(body);
space.removeBody(body);
}
},
/**
Expand All @@ -6346,7 +6358,11 @@ SimpleMotor.prototype.getImpulse = function()
* @param {String} cfg.type 形状类型，SHAPE_RECT|SHAPE_CIRCLE|SHAPE_POLYGEN , 默认矩形
* @param {Number} cfg.restitution 弹力，默认0.4
* @param {Number} cfg.friction 摩擦力，默认1
* @param {Number} cfg.mass 质量，默认1
* @param {Number} cfg.collisionType 碰撞类型，默认1
* @param {Uint} cfg.group 碰撞组标识，默认为0，零组与任何组都碰撞，相同的非零组之间不会互相碰撞
* @param {Uint} cfg.layers 碰撞层的掩码，默认为~0，两个层的按位与不为0时(a.layers & b.layers != 0)会发生碰撞
* @param {Boolean} cfg.isStatic 是否静态刚体，默认false
* @param {Number} cfg.width 宽，type为SHAPE_RECT时有效，默认为view宽
* @param {Number} cfg.height 高，type为SHAPE_RECT时有效，默认为view高
* @param {Number} cfg.radius 半径，type为SHAPE_CIRCLE时有效，默认为view宽的一半
Expand All @@ -6360,6 +6376,8 @@ SimpleMotor.prototype.getImpulse = function()
var cfg = cfg||{};
var mass = cfg.mass || 1;
var type = cfg.type || Physics.SHAPE_RECT;
var group = cfg.group === undefined?0:cfg.group;
var layers = cfg.layers === undefined?~0:cfg.layers;
var width = view.width * view.scaleX;
var height = view.height * view.scaleY;

Expand All @@ -6372,12 +6390,12 @@ SimpleMotor.prototype.getImpulse = function()
case Physics.SHAPE_RECT:
width = cfg.width||width;
height = cfg.height||height;
body = new cp.Body(mass, cp.momentForBox(mass, width, height));
body = cfg.isStatic?this._createStaticBody():new cp.Body(mass, cp.momentForBox(mass, width, height));
shape = new cp.BoxShape(body, width, height);
break;
case Physics.SHAPE_CIRCLE:
radius = cfg.radius||width*.5;
body = new cp.Body(mass, cp.momentForCircle(mass, 0, radius, new cp.Vect(0, 0)));
body = cfg.isStatic?this._createStaticBody():new cp.Body(mass, cp.momentForCircle(mass, 0, radius, new cp.Vect(0, 0)));
shape = new cp.CircleShape(body, radius, new cp.Vect(0, 0));
break;
case Physics.SHAPE_POLYGEN:
Expand All @@ -6388,7 +6406,7 @@ SimpleMotor.prototype.getImpulse = function()
verts.push(point.y);
});
view.boundsArea = boundsArea;
body = new cp.Body(mass, cp.momentForPoly(mass, verts, new cp.Vect(0, 0)));
body = cfg.isStatic?this._createStaticBody():new cp.Body(mass, cp.momentForPoly(mass, verts, new cp.Vect(0, 0)));
shape = new cp.PolyShape(body, verts, new cp.Vect(0, 0));
break;
default:
Expand All @@ -6401,21 +6419,29 @@ SimpleMotor.prototype.getImpulse = function()
shape.setElasticity(cfg.restitution||.4);
shape.setFriction(cfg.friction||1);
shape.setCollisionType(cfg.collisionType||1);
shape.layers = layers;
shape.group = group;

view._viewRender = view.render;
Class.mix(view, PhysicsViewMixin);


view.body = body;
view.shape = shape;
view.space = this.space;
body.view = view;

//物理对象中心点必须在中心
view.pivotX = view.width * .5;
view.pivotY = view.height * .5;

this.space.addBody(body);
this.space.addShape(shape);
if(cfg.isStatic){
this.space.addShape(shape);
}
else{
this.space.addBody(body);
this.space.addShape(shape);
}


view._physicsRender();
Expand Down Expand Up @@ -6509,6 +6535,12 @@ SimpleMotor.prototype.getImpulse = function()
floor.setElasticity(1);
floor.setFriction(1);
},
_createStaticBody:function(){
var body = new cp.Body(Infinity, Infinity);
body.nodeIdleTime = Infinity;
body.isStaticBody = true;
return body;
}
});

/**
Expand Down
6 changes: 3 additions & 3 deletions build/physics/physics.min.js
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17 changes: 13 additions & 4 deletions src/extensions/physics/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,9 @@
对chipmunk二次封装，简化使用方法

## example
* [demo](http://groups.demo.taobao.net/Hilo/hilo/src/extensions/physics/demo/)
* [joints](http://groups.demo.taobao.net/Hilo/hilo/src/extensions/physics/demo/joints.html)
* [demo](http://hiloteam.github.io/Hilo/src/extensions/physics/demo/index.html)
* [joints](http://hiloteam.github.io/Hilo/src/extensions/physics/demo/joints.html)
* [collision](http://hiloteam.github.io/Hilo/src/extensions/physics/demo/collision.html)

## 使用说明

Expand All @@ -27,7 +28,9 @@
```
world.bindView(view, {
type:Hilo.Physics.SHAPE_CIRCLE,
restitution:.9
restitution:0.9,
group:0,
layers:~0
});
```
1. 操作物理对象，施加力, 冲量，改变位置，角度 [详细api](./api.md#PhysicsViewMixin)
Expand Down Expand Up @@ -78,4 +81,10 @@

## 详细文档
* [完整api](./api.md)
* [chipmunk中文手册](https://github.com/iTyran/ChipmunkDocsCN/blob/master/Chipmunk2D.md)
* [chipmunk中文手册](https://github.com/iTyran/ChipmunkDocsCN/blob/master/Chipmunk2D.md)

## build api doc
```
npm install -g jsdoc-to-markdown
jsdoc2md src/extensions/physics/physics.js > src/extensions/physics/api.md
```
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