HelloWorldScene.h
1 #ifndef __HELLOWORLD_SCENE_H__
2 #define __HELLOWORLD_SCENE_H__
3
4 #include "cocos2d.h"
5 #include "GameOverScene.h"
6
7 USING_NS_CC;
8
9 class HelloWorld : public cocos2d::Layer
10 {
11 public:
12 static cocos2d::Scene* createScene();
13 virtual void onEnter() override;
14 virtual bool init();
15
16 CREATE_FUNC(HelloWorld);
17
18 Sprite* ball;//弹射的球
19 Sprite* paddle;//玩家控制的可移动碰撞块
20 Sprite* edgeSp;//碰撞盒子
21
22 PhysicsWorld* m_world;
23
24 void setPhyWorld(PhysicsWorld* world){ m_world = world; };
25 void tick(float dt);
26
27 bool onTouchBegan(Touch* touch, Event* event);
28 void onTouchMoved(Touch* touch, Event* event);
29 void onTouchEnded(Touch* touch, Event* event);
30
31 bool onContactBegin(const PhysicsContact& contact);
32
33 };
34
35 #endif
HelloWorldScene.cpp
1 #include "HelloWorldScene.h"
2
3 USING_NS_CC;
4
5 Scene* HelloWorld::createScene()
6 {
7 auto scene = Scene::createWithPhysics();
8 //设置Debug模式，你会看到物体的表面被线条包围，主要为了在调试中更容易地观察
9 scene->getPhysicsWorld()->setDebugDrawMask(PhysicsWorld::DEBUGDRAW_ALL);
10
11 Vect gravity(0.0f, 0.0f);
12 //设置重力
13 scene->getPhysicsWorld()->setGravity(gravity);
14
15 auto layer = HelloWorld::create();
16
17 layer->setPhyWorld(scene->getPhysicsWorld());
18
19 scene->addChild(layer);
20
21 return scene;
22
23 }
24
25 /**
26 PHYSICSBODY_MATERIAL_DEFAULT常量是默认材质，材质是由结构体PhysicsMaterial定义的，结构体PhysicsMaterial成员有：density（密度）、friction（磨擦系数）和restitution（弹性系数）。
27 密度可以用来计算物体的质量，密度可以为零或者为正数。
28 摩擦系数经常会设置在0.0~1.0之间，0.0表示没有摩擦力，1.0会产生强摩擦。
29 弹性系数的值通常设置到0.0~1.0之间，0.0表示物体不会弹起，1.0表示物体会完全反弹，即称为弹性碰撞。
30 **/
31 bool HelloWorld::init()
32 {
33 if ( !Layer::init() )
34 {
35 return false;
36 }
37
38 auto visibleSize = Director::getInstance()->getVisibleSize();
39 auto origin = Director::getInstance()->getVisibleOrigin();
40
41 edgeSp = Sprite::create();
42 //创建一个盒子，用来碰撞
43 //矩形的大小、设置材质、设置边的宽度
44 auto boundBody = PhysicsBody::createEdgeBox(visibleSize, PHYSICSBODY_MATERIAL_DEFAULT, 3);
45 //设置物体的弹性 0表示完全不反弹。1完全反弹
46 boundBody->getShape(0)->setRestitution(1.0f);
47 //设置摩擦力
48 boundBody->getShape(0)->setFriction(0.0f);
49 //设置密度
50 boundBody->getShape(0)->setDensity(1.0f);
51 edgeSp->setPosition(Point(visibleSize.width / 2, visibleSize.height / 2));
52 edgeSp->setPhysicsBody(boundBody);
53 this->addChild(edgeSp);
54 edgeSp->setTag(0);
55
56 //CategoryBitmask， 默认值为 0xFFFFFFFF
57 //ContactTestBitmask， 默认值为 0x00000000
58 //CollisionBitmask， 默认值为 0xFFFFFFFF
59 //如果采用默认的数值，碰撞是可以检测的，但是碰撞事件是不会发出的，so我们的onContactBegin就被屏蔽了
60 //果想我们的两个物体即发生碰撞又可以检测到，不让它们&的值不等于0就ok了
61 edgeSp->getPhysicsBody()->setCategoryBitmask(0x01);
62 edgeSp->getPhysicsBody()->setContactTestBitmask(0x01);
63 edgeSp->getPhysicsBody()->setCollisionBitmask(0x01);
64
65 ball = Sprite::create("Ball.png", Rect(0, 0, 52, 52));
66 ball->setPosition(100, 100);
67 //创建物体，并且物体的形状为圆形，第一参数为半径，第二个参数为物体材质
68 //第三个参数为边的厚度,就是在Debug模式下看到的物体外面线条的厚度，默认为0
69 auto ballBody = PhysicsBody::createCircle(ball->getContentSize().width / 2.);
70 ballBody->getShape(0)->setRestitution(1.0f);
71 ballBody->getShape(0)->setFriction(0.0f);
72 ballBody->getShape(0)->setDensity(1.0f);
73 ballBody->setGravityEnable(false);
74 Vect force = Vect(1000000.0f, 1000000.0f);
75 //是对物体施加一个冲量
76 ballBody->applyImpulse(force);
77 ball->setPhysicsBody(ballBody);
78 ball->setTag(1);
79 this->addChild(ball);
80
81 ball->getPhysicsBody()->setCategoryBitmask(0x01);
82 ball->getPhysicsBody()->setContactTestBitmask(0x01);
83 ball->getPhysicsBody()->setCollisionBitmask(0x01);
84
85 paddle = Sprite::create("Paddle.png");
86 //创建物体，并且物体的形状为矩形
87 auto paddleBody = PhysicsBody::createBox(paddle->getContentSize(), PHYSICSBODY_MATERIAL_DEFAULT);
88 paddleBody->getShape(0)->setRestitution(1.0f);
89 paddleBody->getShape(0)->setFriction(0.0f);
90 paddleBody->getShape(0)->setDensity(10.0f);
91 paddleBody->setGravityEnable(false);
92 paddleBody->setDynamic(false);
93 paddle->setPosition(visibleSize.width / 2, 50);
94 paddle->setPhysicsBody(paddleBody);
95 paddle->setTag(2);
96 this->addChild(paddle);
97
98 for (int i = 0; i < 4; i++) {
99
100 static int padding = 100;
101
102 // 创建方块并添加到层中
103 auto block = Sprite::create("blocks.png");
104 auto blockBody = PhysicsBody::createBox(block->getContentSize(), PHYSICSBODY_MATERIAL_DEFAULT);
105 blockBody->getShape(0)->setDensity(10.0f);
106 blockBody->getShape(0)->setFriction(0.0f);
107 blockBody->getShape(0)->setRestitution(1.f);
108 blockBody->setDynamic(false);
109 int xOffset = padding + block->getContentSize().width / 2 +
110 ((block->getContentSize().width + padding)*i);
111 block->setPosition(xOffset, 450);
112 block->setPhysicsBody(blockBody);
113 block->setTag(3);
114 this->addChild(block);
115
116 block->getPhysicsBody()->setCategoryBitmask(0x01);
117 block->getPhysicsBody()->setContactTestBitmask(0x01);
118 block->getPhysicsBody()->setCollisionBitmask(0x01);
119 }
120
121 this->schedule(schedule_selector(HelloWorld::tick),0);
122
123 return true;
124 }
125
126 void HelloWorld::onTouchMoved(Touch* touch, Event* event)
127 {
128 Point touchLocation = this->convertToWorldSpace(this->convertTouchToNodeSpace(touch));
129 paddle->setPositionX(touchLocation.x);
130 }
131
132 bool HelloWorld::onTouchBegan(Touch* touch, Event* event)
133 {
134 return true;
135 }
136
137 void HelloWorld::onTouchEnded(Touch* touch, Event* event)
138 {
139
140 }
141
142 bool HelloWorld::onContactBegin(const PhysicsContact& contact)
143 {
144 if (ball->getPositionY() <= 50)
145 {
146 auto gameOverScene = GameOverScene::create();
147 gameOverScene->getLayer()->getLabel()->setString("You Lose!");
148 Director::getInstance()->replaceScene(gameOverScene);
149 }
150
151 auto spriteA = (Sprite*)contact.getShapeA()->getBody()->getNode();
152 auto spriteB = (Sprite*)contact.getShapeB()->getBody()->getNode();
153 int tagA = spriteA->getTag();
154 int tagB = spriteB->getTag();
155
156 if (tagA == 3)
157 {
158 spriteA->removeFromParentAndCleanup(true);
159 }
160
161 if (tagB == 3)
162 {
163 spriteB->removeFromParentAndCleanup(true);
164 }
165
166 return true;
167 }
168
169 void HelloWorld::tick(float dt)
170 {
171 bool isWin = true;
172 Vector<PhysicsBody*> bodies = m_world->getAllBodies();
173 Vector<PhysicsBody*>::iterator iter;
174 for (iter=bodies.begin();iter!=bodies.end();iter++) {
175 if ((*iter)->getNode()->getTag() == 3)
176 {
177 isWin = false;
178 }
179 }
180
181 if (isWin == true)
182 {
183 auto gameOverScene = GameOverScene::create();
184 gameOverScene->getLayer()->getLabel()->setString("You Win!");
185 Director::getInstance()->replaceScene(gameOverScene);
186 }
187 }
188
189 void HelloWorld::onEnter()
190 {
191 Layer::onEnter();
192
193 auto touchListener = EventListenerTouchOneByOne::create();
194 touchListener->setSwallowTouches(true);
195
196 touchListener->onTouchBegan = CC_CALLBACK_2(HelloWorld::onTouchBegan, this);
197 touchListener->onTouchMoved = CC_CALLBACK_2(HelloWorld::onTouchMoved, this);
198 touchListener->onTouchEnded = CC_CALLBACK_2(HelloWorld::onTouchEnded, this);
199 _eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, this);
200
201 //添加监听器
202 auto contactListener = EventListenerPhysicsContact::create();
203 //设置监听器的碰撞开始函数
204 contactListener->onContactBegin = CC_CALLBACK_1(HelloWorld::onContactBegin, this);
205
206 //添加到事件分发器中
207 _eventDispatcher->addEventListenerWithSceneGraphPriority(contactListener, this);
208
209 }
GameOverScene.h
1 #ifndef __SampleGame1__GameOverScene__
2 #define __SampleGame1__GameOverScene__
3
4 #include "cocos2d.h"
5
6 class GameOverLayer : public cocos2d::LayerColor
7 {
8 public:
9 GameOverLayer():_label(NULL) {};
10 virtual ~GameOverLayer();
11 bool init();
12 CREATE_FUNC(GameOverLayer);
13
14 void gameOverDone();
15
16 CC_SYNTHESIZE_READONLY(cocos2d::LabelTTF*, _label, Label);
17 };
18
19 class GameOverScene : public cocos2d::Scene
20 {
21 public:
22 GameOverScene():_layer(NULL) {};
23 ~GameOverScene();
24 bool init();
25 CREATE_FUNC(GameOverScene);
26
27 CC_SYNTHESIZE_READONLY(GameOverLayer*, _layer, Layer);
28 };
29
30 #endif
GameOverScene.cpp
1 #include "GameOverScene.h"
2 #include "HelloWorldScene.h"
3 USING_NS_CC;
4
5
6 bool GameOverScene::init()
7 {
8 if( Scene::init() )
9 {
10 this->_layer = GameOverLayer::create();
11 this->_layer->retain();
12 this->addChild(_layer);
13
14 return true;
15 }
16 else
17 {
18 return false;
19 }
20 }
21
22 GameOverScene::~GameOverScene()
23 {
24 if (_layer)
25 {
26 _layer->release();
27 _layer = NULL;
28 }
29 }
30
31 bool GameOverLayer::init()
32 {
33 if ( LayerColor::initWithColor( Color4B(255,255,255,255) ) )
34 {
35 auto winSize = Director::getInstance()->getWinSize();
36 this->_label = LabelTTF::create("","Artial", 32);
37 _label->retain();
38 _label->setColor( Color3B(0, 0, 0) );
39 _label->setPosition( Point(winSize.width/2, winSize.height/2) );
40 this->addChild(_label);
41
42 this->runAction( Sequence::create(
43 DelayTime::create(3),
44 CallFunc::create(CC_CALLBACK_0(GameOverLayer::gameOverDone, this)),
45 NULL));
46
47 return true;
48 }
49 else
50 {
51 return false;
52 }
53 }
54
55 void GameOverLayer::gameOverDone()
56 {
57 Director::getInstance()->replaceScene( HelloWorld::createScene() );
58 }
59
60 GameOverLayer::~GameOverLayer()
61 {
62 if (_label)
63 {
64 _label->release();
65 _label = NULL;
66 }
67 }
游戏中图片：
游戏运行效果：
时间： 2024-08-08 09:28:14