http://www.cnblogs.com/andyque/archive/2011/04/11/2012852.html
1.地图的创建，我利用的是tiled的软件，仿照上面的博客创建了地图
2.地图的加载，我用的是vs2010和cocos2dx2.0.4版本
tiled = CCTMXTiledMap::create("ortho-objects.tmx");//加载地图
//tiled->setScale(0.8f);
this->addChild(tiled,1,111);
tiled->setPosition(ccp(0,0));
int mapwidth = tiled->getMapSize().width * tiled->getTileSize().width;
int mapheigt = tiled->getMapSize().height *tiled->getTileSize().height;
3.我的主角是一个小人，在地图上面来回运动，动画创建不写了，现在写一下我的左右移动的检测函数，因为瓦片的座标与屏幕的座标是不同的，屏幕的座标是以左下角为原点，但是瓦片的座标是以左上角为原点座标，假设地图为m行n列，那么左上角座标为（0,0），右下角的座标就为（m-1,n-1）
void Map::playermaphcollision()
{
CCPoint playerpos = gamelayer->getPosition();
CCSize playersize = gamelayer->getContentSize();
CCTMXTiledMap *map = (CCTMXTiledMap*)getChildByTag(111);
int idexx,idexy;
//获取布景层
CCTMXLayer *layer = map->layerNamed("logic");
for (int playery = playerpos.y - playersize.height;playery < playerpos.y;playery++)
{
//主角在左边界
idexx =(playerpos.x-playersize.width/2)/map->getTileSize().width;
idexy =map->getMapSize().height- (playerpos.y/map->getTileSize().height);
CCPoint pos = ccp(idexx,idexy-1);
int titleGid = layer->tileGIDAt(pos);//获取图层元素的gid值
if(titleGid > 0)
{
//CCDictionary的作用就是读取xml的文件的类
CCDictionary *titledic = map->propertiesForGID(titleGid);//根据gid获取xml里面的属性值
if (titledic)
{
CCString *mvalua = (CCString*)titledic->objectForKey("collion");//根据键值获取value的值
if (mvalua)
{
int mv = mvalua->intValue();//转换为我们所需要的类型
if (mv == 2)
{
playerpos.x = (idexx+1)*map->getTileSize().width+playersize.width/2;
gamelayer->setPosition(playerpos);
}
}
}
return;
}
//右移的情况，暂时没右移，可以忽略
idexx = (playerpos.x + playersize.width/2)/map->getTileSize().width;
idexy = map->getMapSize().height- (playerpos.y/map->getTileSize().height);
CCPoint pos1 = ccp(idexx,idexy);
int tilegid = layer->tileGIDAt(pos1);
if (tilegid > 0)
{
CCDictionary *titledic1 = map->propertiesForGID(tilegid);
if (titledic1)
{
CCString *mava1 = (CCString*)titledic1->objectForKey("collion");
int mv1 = mava1->intValue();
if (mv1 == 2)
{
playerpos.x = (idexx-1)*map->getTileSize().width-playersize.width/2;
gamelayer->setPosition(playerpos);
}
}
}
return;
}
}
4.检测碰撞
bool Map::iscollision(CCSprite *mysprite,CCSprite *testsprite)
{
CCPoint ownpos = mysprite->getPosition();
CCPoint otherpos = testsprite->getPosition();
CCSize ownsize = mysprite->getContentSize();
CCSize othersize = testsprite->getContentSize();
CCRect ownrect = CCRectMake(ownpos.x-ownsize.width/2,ownpos.y-ownsize.height/2,ownsize.width,ownsize.height);
CCRect otherrect = CCRectMake(otherpos.x-othersize.width/2,otherpos.y-othersize.height/2,othersize.width,othersize.height);
if (ownrect.intersectsRect(otherrect))
{
return true;
}
return false;
}
这个写法很多
新手一个，有些地方错了，大家给我说一下