pause:function()
{
if (this._paused === ture)
{
debug.warning("pause paused animation");
}
this._paused = true;
},
resume:function()
{
if (this._paused === false)
{
debug.warning("resume a unpaused animation");
}
this._paused = false;
},
function viewPhysicsShape(viewer, shape, r, g, b)
{
switch(shape.GetType())
{
/*
Box2D.Collision.Shapes.b2Shape.e_circleShape = 0;
Box2D.Collision.Shapes.b2Shape.e_polygonShape = 1;
Box2D.Collision.Shapes.b2Shape.e_edgeShape = 2;
Box2D.Collision.Shapes.b2Shape.e_shapeTypeCount = 3;
*/
case 0:
var radius = shape.GetRadius()
, pos = shape.GetLocalPosition();
viewer.fill(r, g, b);
viewer.arc(pos.x, pos.y, radius*2, radius*2, 0, 2*Math.PI);
break;
case 1:
viewer.fill(r, g, b);
viewer.beginShape();
util.each(shape.GetVertices(), function(vectex, i){
viewer.vertex(vectex.x, vectex.y);
});
viewer.endShape(viewer.CLOSE);
break;
case 2:
viewer.stroke(r, g ,b);
var vectex1 = shape.GetVertex1()
, vectex2 = shape.GetVertex2();
viewer.line(vectex1.x, vectex1.y, vectex2.x, vectex2.y);
break;
case 3:
default:
debug.warning('cannot draw this shape:'+shape.GetType());
break;
}
}