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- package Box2D.Dynamics.Contacts
- {
- import Box2D.Collision.Shapes.b2PolygonShape;
- import Box2D.Collision.Shapes.b2Shape;
- import Box2D.Collision.b2Collision;
- import Box2D.Collision.b2ContactPoint;
- import Box2D.Collision.b2Manifold;
- import Box2D.Collision.b2ManifoldPoint;
- import Box2D.Common.Math.b2Vec2;
- import Box2D.Dynamics.b2Body;
- import Box2D.Dynamics.b2ContactListener;
-
- public class b2PolygonContact extends b2Contact
- {
-
- private static const s_evalCP:b2ContactPoint = new b2ContactPoint();
-
-
- private var m_manifolds:Array;
-
- private var m0:b2Manifold;
-
- public var m_manifold:b2Manifold;
-
- public function b2PolygonContact(param1:b2Shape, param2:b2Shape)
- {
- m0 = new b2Manifold();
- m_manifolds = [new b2Manifold()];
- super(param1,param2);
- m_manifold = m_manifolds[0];
- m_manifold.pointCount = 0;
- }
-
- public static function Destroy(param1:b2Contact, param2:*) : void
- {
- }
-
- public static function Create(param1:b2Shape, param2:b2Shape, param3:*) : b2Contact
- {
- return new b2PolygonContact(param1,param2);
- }
-
- override public function GetManifolds() : Array
- {
- return m_manifolds;
- }
-
- override public function Evaluate(param1:b2ContactListener) : void
- {
- var _loc2_:b2Vec2 = null;
- var _loc3_:b2Vec2 = null;
- var _loc4_:b2ManifoldPoint = null;
- var _loc5_:b2Body = null;
- var _loc6_:b2Body = null;
- var _loc7_:b2ContactPoint = null;
- var _loc8_:int = 0;
- var _loc9_:Array = null;
- var _loc10_:b2ManifoldPoint = null;
- var _loc11_:Boolean = false;
- var _loc12_:uint = 0;
- var _loc13_:int = 0;
- _loc5_ = m_shape1.m_body;
- _loc6_ = m_shape2.m_body;
- m0.Set(m_manifold);
- b2Collision.b2CollidePolygons(m_manifold,m_shape1 as b2PolygonShape,_loc5_.m_xf,m_shape2 as b2PolygonShape,_loc6_.m_xf);
- _loc9_ = [false,false];
- (_loc7_ = s_evalCP).shape1 = m_shape1;
- _loc7_.shape2 = m_shape2;
- _loc7_.friction = m_friction;
- _loc7_.restitution = m_restitution;
- if(m_manifold.pointCount > 0)
- {
- _loc8_ = 0;
- while(_loc8_ < m_manifold.pointCount)
- {
- (_loc10_ = m_manifold.points[_loc8_]).normalImpulse = 0;
- _loc10_.tangentImpulse = 0;
- _loc11_ = false;
- _loc12_ = _loc10_.id._key;
- _loc13_ = 0;
- while(_loc13_ < m0.pointCount)
- {
- if(_loc9_[_loc13_] != true)
- {
- if((_loc4_ = m0.points[_loc13_]).id._key == _loc12_)
- {
- _loc9_[_loc13_] = true;
- _loc10_.normalImpulse = _loc4_.normalImpulse;
- _loc10_.tangentImpulse = _loc4_.tangentImpulse;
- _loc11_ = true;
- if(param1 != null)
- {
- _loc7_.position = _loc5_.GetWorldPoint(_loc10_.localPoint1);
- _loc2_ = _loc5_.GetLinearVelocityFromLocalPoint(_loc10_.localPoint1);
- _loc3_ = _loc6_.GetLinearVelocityFromLocalPoint(_loc10_.localPoint2);
- _loc7_.velocity.Set(_loc3_.x - _loc2_.x,_loc3_.y - _loc2_.y);
- _loc7_.normal.SetV(m_manifold.normal);
- _loc7_.separation = _loc10_.separation;
- _loc7_.id.key = _loc12_;
- param1.Persist(_loc7_);
- }
- break;
- }
- }
- _loc13_++;
- }
- if(_loc11_ == false && param1 != null)
- {
- _loc7_.position = _loc5_.GetWorldPoint(_loc10_.localPoint1);
- _loc2_ = _loc5_.GetLinearVelocityFromLocalPoint(_loc10_.localPoint1);
- _loc3_ = _loc6_.GetLinearVelocityFromLocalPoint(_loc10_.localPoint2);
- _loc7_.velocity.Set(_loc3_.x - _loc2_.x,_loc3_.y - _loc2_.y);
- _loc7_.normal.SetV(m_manifold.normal);
- _loc7_.separation = _loc10_.separation;
- _loc7_.id.key = _loc12_;
- param1.Add(_loc7_);
- }
- _loc8_++;
- }
- m_manifoldCount = 1;
- }
- else
- {
- m_manifoldCount = 0;
- }
- if(param1 == null)
- {
- return;
- }
- _loc8_ = 0;
- while(_loc8_ < m0.pointCount)
- {
- if(!_loc9_[_loc8_])
- {
- _loc4_ = m0.points[_loc8_];
- _loc7_.position = _loc5_.GetWorldPoint(_loc4_.localPoint1);
- _loc2_ = _loc5_.GetLinearVelocityFromLocalPoint(_loc4_.localPoint1);
- _loc3_ = _loc6_.GetLinearVelocityFromLocalPoint(_loc4_.localPoint2);
- _loc7_.velocity.Set(_loc3_.x - _loc2_.x,_loc3_.y - _loc2_.y);
- _loc7_.normal.SetV(m0.normal);
- _loc7_.separation = _loc4_.separation;
- _loc7_.id.key = _loc4_.id._key;
- param1.Remove(_loc7_);
- }
- _loc8_++;
- }
- }
- }
- }
-