【Cocos2d-x3.0学习笔记 09】游戏实例跑跑跑01

1.Tiled地图

Tiled Map Editor

官方网址：http://www.mapeditor.org

新建地图

将图片拖动到图块的地方

然后就可以绘制地图了

2.创建跑步场景

在场景中加入tiled地图

#include "TollgateScene.h"Scene* TollgateScene::createScene(){Scene* scene = Scene::create();auto layer = TollgateScene::create();scene->addChild(layer);return scene;
}bool TollgateScene::init(){if (!Layer::init()){return false;}TMXTiledMap* map = TMXTiledMap::create("level01.tmx");this->addChild(map);return true;}

运行，地图已经加载到场景中了

这边需要注意的是地图文件的图片路径经常会出错，改成相对路径即可

3.创建主角

还是习惯性的创建基类，主角类

Entity继承Node

#include "Entity.h"
void Entity::bindSprite(Sprite* sprite){mSprite = sprite;this->addChild(mSprite);
}

Player继承Entity

#include "Player.h"
bool Player::init(){return true;
}void Player::run(){}

在TollgateScene中添加addPlayer方法

//添加主角
void TollgateScene::addPlayer(TMXTiledMap* map){Size visibleSize = Director::getInstance()->getVisibleSize();Player* player = Player::create();player->bindSprite(Sprite::create("run1.png"));player->run();player->setPosition(Point(100,visibleSize.height/2));map->addChild(player);
}

运行后，主角加载到场景中

4.固定主角的出生点，对象层的使用

Tiled Map的对象层功能

图层-->添加对象层，命名为objects

选中对象层，插入矩形，更改属性，改名为playerpoint

//添加主角
void TollgateScene::addPlayer(TMXTiledMap* map){Size visibleSize = Director::getInstance()->getVisibleSize();Player* player = Player::create();player->bindSprite(Sprite::create("run1.png"));player->run();//获取对象层TMXObjectGroup* objectGroup = map->getObjectGroup("objects");//加载玩家坐标ValueMap playerPoint = objectGroup->getObject("PlayerPoint");float playerX = playerPoint.at("x").asFloat();float playerY = playerPoint.at("y").asFloat();player->setPosition(Point(playerX,playerY));map->addChild(player);
}

TmxObjectGroup对象存放了对象层的所有对象，通过getObjectGroup获取指定的对象层，于是我们就获得了对象层的所有对象，这些对象用一个Map的容器存放

ValueMap和Map类似，不过ValueMap限定了key值为string了

5.让主角跑起来，

我们可以用到上节的动画辅助类

void Player::run(){SpriteFrameCache* frameCache = SpriteFrameCache::getInstance();frameCache->addSpriteFramesWithFile("runs.plist","runs.png");Animation* action = AnimationUtil::createWithStringFrameName("run",0.1f,-1);mSprite->runAction(Animate::create(action));
}

6.添加角色控制器

采用组合的形式让主角向前跑，把向前跑作为一个功能单独写成一个类，主角只要增加一个成员变量（向前跑的类）就能实现向前跑的动作。

①先创建控制器的基类，继承Node对象

Controller：设置监听对象

#ifndef _CONTROLLER_H_
#define _CONTROLLER_H_
#include "cocos2d.h"
#include "ControllerListener.h"
USING_NS_CC;
class Controller : public Node
{
public://设置监听对象void setControllerListener(ControllerListener* listener);protected:ControllerListener* m_listener;
};
#endif#include "Controller.h"void Controller::setControllerListener(ControllerListener* listener){this->m_listener = listener;
}

②创建监听对象接口

要被控制的对象，只要继承ControllerListener接口，就可以被Controller控制

#ifndef _CONTROLLER_LISTENER_H_
#define _CONTROLLER_LISTENER_H_
#include "cocos2d.h"
class ControllerListener
{
public://两个都是虚函数，c++的虚函数就是在后面加=0，//设置目标坐标virtual void setTagPosition(int x,int y) = 0;//得到目标坐标virtual cocos2d::Point getTagPosition() = 0;
private:};
#endif

③创建简单移动控制器，继承自Controller

主要调用update来进行position的更新操作

#ifndef _SIMPLE_MOVE_CONTROLLER_H_
#define _SIMPLE_MOVE_CONTROLLER_H_
#include "Controller.h"
#include "cocos2d.h"
class SimpleMoveController : public Controller
{
public:CREATE_FUNC(SimpleMoveController);virtual bool init();virtual void update(float dt);//设置速度void setISpeed(int iSpeed);private:int m_iSpeed;
};#endif

#include "SimpleMoveController.h"
bool SimpleMoveController::init(){this->m_iSpeed = 0;//启用定时器this->scheduleUpdate();return true;
}//设置速度
void SimpleMoveController::setISpeed(int iSpeed){this->m_iSpeed = iSpeed;
}void SimpleMoveController::update(float dt){if (m_listener!=NULL){Point pos = m_listener->getTagPosition();//仅仅增加移动对象的x坐标pos.x+=m_iSpeed;m_listener->setTagPosition(pos.x,pos.y);}
}

m_listener是Controller的protected变量

④实体的基类继承ControllerListener类

实现了ControllerListener的两个方法，绑定Controller对象

#ifndef _ENTITY_H_
#define _ENTITY_H_
#include "cocos2d.h"
#include "ControllerListener.h"
#include "Controller.h"
USING_NS_CC;
class Entity : public Node,public ControllerListener
{
public:void bindSprite(Sprite* sprite);//实现SimpleMoveController的方法virtual void setTagPosition(int x,int y);virtual Point getTagPosition();//设置控制器void setController(Controller* controller);protected:Sprite* mSprite;Controller* mController;
};
#endif

#include "Entity.h"
void Entity::bindSprite(Sprite* sprite){mSprite = sprite;this->addChild(mSprite);
}
void Entity::setController(Controller* controller){//绑定Controller对象this->mController = controller;mController->setControllerListener(this);
}void Entity::setTagPosition(int x,int y){setPosition(Point(x,y));
}Point Entity::getTagPosition(){return getPosition();
}

⑤当然是创建简单移动控制器，并绑定主角

//添加主角
void TollgateScene::addPlayer(TMXTiledMap* map){Size visibleSize = Director::getInstance()->getVisibleSize();Player* player = Player::create();player->bindSprite(Sprite::create("run1.png"));player->run();//获取对象层TMXObjectGroup* objectGroup = map->getObjectGroup("objects");//加载玩家坐标ValueMap playerPoint = objectGroup->getObject("PlayerPoint");float playerX = playerPoint.at("x").asFloat();float playerY = playerPoint.at("y").asFloat();player->setPosition(Point(playerX,playerY));//创建简单的移动控制器SimpleMoveController* controller = SimpleMoveController::create();//设置速度为1controller->setISpeed(1);//添加到节点中，才能调用刷新函数this->addChild(controller);//给主角加上控制器player->setController(controller);map->addChild(player);}

运行，截图（本想qq截图的，但是看下360，就没开qq了）