使用Cocos2d-x-3.0游戏引擎。编写一个瓦片地图游戏 part03

Cocos2d-x
#21

mark。学习啦

#22

th sdg dsg df gd fg df gdf g dfgdf

#23

啊啊啊啊啊啊啊啊啊啊啊啊

#24

正在一步步看代码理解代码和实现，谢谢楼主

#25

这一章报错了 同18- -

#26

马。。。好贴慢慢学习

#27

我这边都没报错，但是就是吃不到layer.:11:

#28

void HelloWorld::setPlayerPosition(Point position)
{
Point tileCoord = this->tileCoordForPosition(position);
int tileGid = _blockage->getTileGIDAt(tileCoord);
if (tileGid) {
auto properties = _tileMap->getPropertiesForGID(tileGid).asValueMap();

    if (!properties.empty()) {
        auto collision = properties"blockage"].asString();
                                    if ("true" == collision) {
                                    return;
                                    }



        auto collect = properties"collectable"].asString();
                                    if ("ture" == collect) {
            _blockage->removeTileAt(tileCoord);
            _foreground->removeTileAt(tileCoord);
                }
          }
}
_player->setPosition(position);

}

#29

楼主，我做红色碰撞的时候运行没问题，一点击移动就报错，能抽空帮我看看不？
代码是这样的：
bool HelloWorld::init()
{
if(!Layer::init()){
return false;
}
std::string file=“1.tmx”;
auto str=String::createWithContentsOfFile(FileUtils::getInstance()->fullPathForFilename(file.c_str()).c_str());
_tileMap = TMXTiledMap::createWithXML(str->getCString(),"");
_background = _tileMap->layerNamed(“background”);
this->addChild(_tileMap,-1);

TMXObjectGroup *objects=_tileMap->getObjectGroup("Player");
CCASSERT(NULL!=objects,"'Player' object group not found");

auto player=objects->getObject("player");
CCASSERT(!player.empty(),"player object not found");
_blockage = _tileMap->layerNamed("blockage01");
_blockage->setVisible(false);
int x=player"x"].asInt();
int y=player"y"].asInt();
_player=Sprite::create("029.png");

_player->setPosition(x+_tileMap->getTileSize().width/2,y+_tileMap->getTileSize().height/2);
_player->setScale(0.5);

addChild(_player);
setViewPointCenter(_player->getPosition());

auto listener=EventListenerTouchOneByOne::create();
listener->onTouchBegan=&](Touch *touch,Event *event)->bool{
return true;
};
listener->onTouchEnded=CC_CALLBACK_2(HelloWorld::onTouchEnded,this);
this->_eventDispatcher->addEventListenerWithSceneGraphPriority(listener,this);
return true;

}

void HelloWorld::onTouchEnded(Touch *touch, Event *unused_event){
auto actionTo1=RotateTo::create(0,0,180);
auto actionTo2=RotateTo::create(0,0,0);
auto touchLocation=touch->getLocation();
touchLocation=this->convertToNodeSpace(touchLocation);
auto playerPos=_player->getPosition();
auto diff=touchLocation-playerPos;
if(abs(diff.x)>abs(diff.y)){
if (diff.x>0)
{
playerPos.x+=_tileMap->getTileSize().width/2;
_player->runAction(actionTo2);

    }else{
        playerPos.x-=_tileMap->getTileSize().width/2;
        _player->runAction(actionTo1);

    }
    

}else{
    if (diff.y>0)
    {
        playerPos.y+=_tileMap->getTileSize().height/2;
    }else{
        playerPos.y-=_tileMap->getTileSize().height/2;
    }
    

}

if (playerPos.x<=(_tileMap->getMapSize().width *_tileMap->getMapSize().width)&&
    playerPos.y<=(_tileMap->getMapSize().height *_tileMap->getMapSize().height)&&
    playerPos.x>=0&&playerPos.y>=0)
{
    this->setPlayerPosition(playerPos);
}
this->setViewPointCenter(_player->getPosition());

}

void HelloWorld::setPlayerPosition(Point position){

Point tileCoord=this->tileCoordForPosition(position);
int tileGid=_blockage->getTileGIDAt(tileCoord);
if(tileGid)
{
    auto properties=_tileMap->getPropertiesForGID(tileGid).asValueMap();
    if (!properties.empty()){
        auto collision=properties"Blockage"].asString();
        if ("true"==collision)
        {
            return;
        }
        

    }
    
    
}

_player->setPosition(position);

}

void HelloWorld::setViewPointCenter(Point position){

auto winSize=Director::getInstance()->getWinSize();

int x=MAX(position.x,winSize.width/2);
int y=MAX(position.y,winSize.height/2);
x=MIN(x,_tileMap->getMapSize().width * _tileMap->getMapSize().width -winSize.width/2);
y=MIN(y,_tileMap->getMapSize().height*_tileMap->getMapSize().height -winSize.height/2);

auto actualPosition=Point(x,y);
auto centerOfView=Point(winSize.width/2,winSize.height/2);
auto viewPoint=centerOfView-actualPosition;
this->setPosition(viewPoint);

}

Point HelloWorld::tileCoordForPosition(cocos2d::Point position){
int x=position.x / _tileMap->getTileSize().width;
int y=((_tileMap->getTileSize().height * _tileMap->getTileSize().height)-position.y)/_tileMap->getTileSize().height;
return Point(x,y);
}

这是错误信息：
Assert failed: TMXLayer: invalid position
Assertion failed!

Program: …work\Game2048\proj.win32\Debug.win32\firstgame.exe
File: CCTMXLayer.cpp
Line: 347

Expression: pos.x < _layerSize.width && pos.y < _layerSize.height && pos.x >=0 && pos.y >=0

For information on how your program can cause an assertion
failure, see the Visual C++ documentation on asserts

#30

学习了 谢谢！:867:

#31

在x-code中图片资源是可以直接查看的
vs2012中 怎么查看tmx里面类似xml 的内容
还有资源名字 记不住我只能到resource文件夹中去看

#32

收藏:2::2::2:

#33

兄台，你很牛逼啊~ 按照你的修改了 OK 了，现在只剩下 在下方碰撞的监测得到，但是移动不了了，无论点击上面还是哪里~

#34 
_mapbg = TMXTiledMap::create("gamemap/partmap.tmx");
_blockage =  _mapbg->layerNamed("Background");
this->addChild(_mapbg,0);
//加载对象层
TMXObjectGroup* objGroup = _mapbg->objectGroupNamed("obj");
ValueMap heroInfo = objGroup->getObject("playerPoint");
float x = heroInfo"x"].asFloat();

float y = heroInfo"y"].asFloat();

auto listener = EventListenerTouchOneByOne::create();
listener->setSwallowTouches(true);
listener->onTouchBegan = (Touch *touch, Event *event){
auto touchLocation = touch->getLocation();
touchLocation = this->convertToNodeSpace(touchLocation);
Point desiredTileCoord = tileCoordForPosition(_player->getPosition());
auto playerPos = _player->getPosition();
playerPos = playerPos * Director::getInstance()->getContentScaleFactor();
auto diff = touchLocation - playerPos;
if (abs(diff.x) > abs(diff.y)) {
if (diff.x > 0) {
playerPos.x += _mapbg->getTileSize().width;
// _player->runAction(actionTo2);
}
else {
playerPos.x -= _mapbg->getTileSize().width;
// _player->runAction(actionTo1);
}
}
else {
if (diff.y > 0) {
playerPos.y += _mapbg->getTileSize().height;
}
else {
playerPos.y -= _mapbg->getTileSize().height;
}
}
if (playerPos.x <= (_mapbg->getMapSize().width * _mapbg->getMapSize().width) &&
playerPos.y <= (_mapbg->getMapSize().height * _mapbg->getMapSize().height) &&
playerPos.y >= 0 &&
playerPos.x >= 0)
{
setPlayerPosition(playerPos/Director::getInstance()->getContentScaleFactor());
}
this->setViewpointCenter(_player->getPosition());
return true;
};
_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);

void GameMapLayer::setPlayerPosition(Point position)
{
Point tileCoord = this->tileCoordForPosition(position);
int tileGid = _blockage->getTileGIDAt(tileCoord);
if (tileGid) {
auto properties = _mapbg->getPropertiesForGID(tileGid).asValueMap();
auto collision = properties"Blockage"].asString();

    if (!properties.empty()) {
     
        if ("True" == collision) {
            return;
        }
    }
}
  
_player->setPosition(position);

}

为什么我红色碰撞碰不到 只能移动