chuck.js/app/Game/Core/Physics/Engine.js
2012-07-21 21:37:24 +02:00

63 lines
No EOL
1.9 KiB
JavaScript
Executable file

define(["Chuck/Settings", "Client/Dom", "Vendor/Box2D", "Chuck/Collision/Detector"], function(Settings, Dom, Box2D, CollisionDetector){
function Engine () {
this.world;
this.init();
}
Engine.prototype.init = function() {
this.world = new Box2D.Dynamics.b2World(new Box2D.Common.Math.b2Vec2(0, Settings.BOX2D_GRAVITY), Settings.BOX2D_ALLOW_SLEEP);
if(Settings.IS_BROWSER_ENVIRONMENT && Settings.DEBUG_MODE) {
this.setupDebugDraw();
}
}
Engine.prototype.getWorld = function() {
return this.world;
}
Engine.prototype.setCollisionDetector = function(me) {
var detector = new CollisionDetector(me);
this.world.SetContactListener(detector.getListener());
}
Engine.prototype.setupDebugDraw = function() {
//var debugSprite = Settings.DEBUG_DRAW_CANVAS_SPRITE;
var debugSprite = Dom.getDebugCanvas().getContext("2d");
// set debug draw
var debugDraw = new Box2D.Dynamics.b2DebugDraw();
debugDraw.SetSprite(debugSprite);
debugDraw.SetDrawScale(Settings.RATIO);
debugDraw.SetFillAlpha(0.5);
debugDraw.SetLineThickness(1.0);
debugDraw.SetFlags(null
| Box2D.Dynamics.b2DebugDraw.e_shapeBit
| Box2D.Dynamics.b2DebugDraw.e_jointBit
//| Box2D.Dynamics.b2DebugDraw.e_coreShapeBit
//| Box2D.Dynamics.b2DebugDraw.e_aabbBit
//| Box2D.Dynamics.b2DebugDraw.e_centerOfMassBit
//| Box2D.Dynamics.b2DebugDraw.e_obbBit
//| Box2D.Dynamics.b2DebugDraw.e_pairBit
);
this.world.SetDebugDraw(debugDraw);
this.world.SetWarmStarting(true);
}
Engine.prototype.createBody = function(bodyDef) {
return this.world.CreateBody(bodyDef);
}
Engine.prototype.update = function() {
this.world.Step(Settings.BOX2D_TIME_STEP, Settings.BOX2D_VELOCITY_ITERATIONS, Settings.BOX2D_POSITION_ITERATIONS);
this.world.ClearForces();
this.world.DrawDebugData();
}
return Engine;
})