cocos2dxforwp之Box2D游戏是男人就坚持60M（一）

1 public override bool init()
2 {
3 if (!base.init())
4 return false;
5 //获取窗口大小
6 CCSize winSize &＃61; CCDirector.sharedDirector().getWinSize();
7
8
9
10 CCLabelTTF title &＃61; CCLabelTTF.labelWithString("Boxing", "Arial", 24);
11 title.position &＃61; new CCPoint(winSize.width / 2, winSize.height / 2 - 50);
12 this.addChild(title, 1);
13
14 Vector2 gravity &＃61; new Vector2(0.0f, 0.0f);
15 bool doSleep &＃61; true;
16 world &＃61; new World(gravity, doSleep);
17
18
19 BodyDef groundBodyDef &＃61; new BodyDef();
20 groundBodyDef.position &＃61; new Vector2(0, 0);
21 groundBody &＃61; world.CreateBody(groundBodyDef);
22 PolygonShape groundBox &＃61; new PolygonShape();//凸多边形
23 FixtureDef boxShapeDef &＃61; new FixtureDef();
24 boxShapeDef.shape &＃61; groundBox;
25 groundBox.SetAsEdge(new Vector2(0, 0), new Vector2((float)(winSize.width / PTM_RATIO), 0));
26 groundBody.CreateFixture(boxShapeDef);
27 groundBox.SetAsEdge(new Vector2(0, 0), new Vector2(0, (float)(winSize.height / PTM_RATIO)));
28 groundBody.CreateFixture(boxShapeDef);
29 groundBox.SetAsEdge(new Vector2(0, (float)(winSize.height / PTM_RATIO)),
30 new Vector2((float)(winSize.width / PTM_RATIO), (float)(winSize.height / PTM_RATIO)));
31 groundBody.CreateFixture(boxShapeDef);
32 groundBox.SetAsEdge(new Vector2((float)(winSize.width / PTM_RATIO), (float)(winSize.height / PTM_RATIO)),
33 new Vector2((float)(winSize.width / PTM_RATIO), 0));
34 groundBody.CreateFixture(boxShapeDef);
35
36 Body body1 &＃61; createBall();
37 Body body2 &＃61; createBall();
38
39 Player play1 &＃61; new Player(this,world,groundBody);
40
41 this.schedule(tick);
42 return true;
43 }

1 public static new CCLayer node()
2 {
3 PlayGame layer &＃61; new PlayGame();
4 if (layer.init())
5 {
6 return layer;
7 }
8 else
9 layer &＃61; null;
10 return layer;
11 }

1 public Body createBall()
2 {
3 Body body;
4 Random rand &＃61; new Random();
5 ball &＃61; CCSprite.spriteWithFile("images/ball");
6 this.addChild(ball);
7 int Vx &＃61; rand.Next(1, 7) * 100;
8 int Vy &＃61; rand.Next(1, 4) * 100;
9 BodyDef ballBodyDef &＃61; new BodyDef();
10 ballBodyDef.type &＃61; BodyType.Dynamic;//动态类型
11 ballBodyDef.position &＃61; new Vector2((float)(Vx / PTM_RATIO), (float)(Vy / PTM_RATIO));
12 ballBodyDef.userData &＃61; ball;
13
14 body &＃61; world.CreateBody(ballBodyDef);
15 CircleShape circle &＃61; new CircleShape();
16 circle._radius &＃61; (float)(26.0 / PTM_RATIO);
17
18 FixtureDef ballShapeDef &＃61; new FixtureDef();
19 ballShapeDef.shape &＃61; circle;
20 ballShapeDef.density &＃61; 1.0f;//密度
21 ballShapeDef.friction &＃61; 0.0f;//摩擦
22 ballShapeDef.restitution &＃61; 1.0f;
23 body.CreateFixture(ballShapeDef);
24
25 int Fx &＃61; rand.Next(1, 7) * 10;
26 int Fy &＃61; rand.Next(1, 4) * 10;
27 Vector2 force &＃61; new Vector2(Fx, Fy);
28 body.ApplyLinearImpulse(force, ballBodyDef.position);
29
30 return body;
31 }

1 void tick(float dt)
2 {
3 world.Step(dt, 10, 10);
4
5 for (Body b &＃61; world.GetBodyList(); b !&＃61; null; b &＃61; b.GetNext())
6 {
7 if (b.GetUserData() !&＃61; null)
8 {
9 CCSprite ballData &＃61; (CCSprite)b.GetUserData();
10 ballData.position &＃61; new CCPoint((float)(b.GetPosition().X * PTM_RATIO),
11 (float)(b.GetPosition().Y * PTM_RATIO));
12 ballData.rotation &＃61; -1 * MathHelper.ToDegrees(b.GetAngle());
13 }
14 }
15 }

1 public Player(CCLayer layer,World world,Body groundBody)2 {3 gBody &＃61; groundBody;4 locWord &＃61; world;5 6 CCSize s &＃61; CCDirector.sharedDirector().getWinSize();7 this.initWithFile("images/ball");8 this.position &＃61; new CCPoint(s.width / 2, s.height / 2);9 layer.addChild(this);
10 addBoxBodyForSprite(this, world);
11 }

1 public virtual bool ccTouchBegan(CCTouch touch, CCEvent eventer)
2 {
3 //创建一个鼠标关节
4 if (mouseJoint !&＃61; null)
5 return false;
6 CCPoint location &＃61; touch.locationInView(touch.view());
7 location &＃61; CCDirector.sharedDirector().convertToGL(location);
8 Vector2 locationWorld &＃61; new Vector2((float)(location.x / PTM_RATIO), (float)(location.y / PTM_RATIO));
9
10 if (ballFixture.TestPoint(locationWorld))
11 {
12 MouseJointDef md &＃61; new MouseJointDef();
13 md.bodyA &＃61; gBody;
14 md.bodyB &＃61; spriteBody;
15 md.collideConnected &＃61; true;
16 md.target &＃61; locationWorld;
17 md.maxForce &＃61; 1000.0f * spriteBody.GetMass();
18 mouseJoint &＃61; (MouseJoint)locWord.CreateJoint(md);
19 spriteBody.SetAwake(true);
20 return true;
21 }
22 else
23 return false;

1 class MyContact
2 {
3 public Fixture fixtureA;
4 public Fixture fixtureB;
5
6 }
7 class MyContactListener : IContactListener
8 {
9 public List contacts &＃61; new List();
10
11 public void BeginContact(Contact contact)
12 {
13 MyContact myContact &＃61; new MyContact()
14 {
15 fixtureA &＃61; contact.GetFixtureA(),
16 fixtureB &＃61; contact.GetFixtureB()
17 };
18 contacts.Add(myContact);
19
20 }
21
22 public void EndContact(Contact contact)
23 {
24 contacts.Clear();
25 }
26
27 public void PostSolve(Contact contact, ref ContactImpulse impulse)
28 {
29 }
30 public void PreSolve(Contact contact, ref Manifold oldManifold)
31 {
32 }
33 }

1 public virtual void ccTouchMoved(CCTouch touch, CCEvent eventer)
2 {
3 if (mouseJoint &＃61;&＃61; null)
4 return;
5 Vector2 point &＃61; new Vector2(this.convertTouchToNodeSpace(touch).x,
6 this.convertTouchToNodeSpace(touch).y);
7 CCPoint location &＃61; touch.locationInView(touch.view());
8 location &＃61; CCDirector.sharedDirector().convertToGL(location);
9 Vector2 locationWorld &＃61; new Vector2((float)(location.x / PTM_RATIO), (float)(location.y / PTM_RATIO));
10
11 mouseJoint.SetTarget(locationWorld);
12 }

1 public virtual void ccTouchEnded(CCTouch touch, CCEvent eventer)
2 {
3 if (mouseJoint !&＃61; null)
4 {
5 mouseJoint &＃61; null;
6 locWord.DestroyJoint(mouseJoint);
7 }
8 }
9
10 public void ccTouchCancelled(CCTouch touch, CCEvent eventer)
11 {
12 if (mouseJoint !&＃61; null)
13 {
14 mouseJoint &＃61; null;
15 locWord.DestroyJoint(mouseJoint);
16
17 }
18 }