我正在使用磁贴映射并使用我的地图类来使用精灵数组来绘制地图。我有它设置精灵的位置，然后在它周围创建一个边界框数组，然后绘制精灵。
然后我有一个碰撞类，它获取玩家边界框并将其与精灵的每个边界框进行比较。我有一个名为platformboundingBox的数组。这将存储数组中每个sprite的每个边界框。然而，当我比较值时，似乎平台边界框在任何位置都没有值，但我已经检查过每个精灵的值进入边界框数组。
这是我的地图类。请参阅drawmap和碰撞函数来看一看。如果有人可以帮助我会非常感激。
#include "Map.h"
#include "Block.h"
#include <sstream>
using namespace std;
Map::Map()
{
//map ctor;
}
Map::~Map()
{
// map dtor
}
void Map::Initialise(const char *filename)
{
if(!BlockImage.LoadFromFile("Images/block.png"))
cout<<endl<<"failed to load block image"<<endl;
if(!GemImage.LoadFromFile("Images/Gem.png"))
cout<<endl<<"failed to load Gem Image"<<endl;
if(!leftBlockImage.LoadFromFile("Images/blockLeft.png"))
cout<<endl<<"failed to load left block Image"<<endl;
if(!rightBlockImage.LoadFromFile("Images/blockRight.png"))
cout<<endl<<"failed to load right block Image"<<endl;
std::ifstream openfile(filename);
std::vector <int> tempvector;
std::string line;
while(std::getline(openfile, line))
{
for(int i =0; i < line.length(); i++)
{
if(line[i] != ' ') // if the value is not a space
{
char value = line[i];
tempvector.push_back(value - '0');
}
}
mapVector.push_back(tempvector); // push back the value of the temp vector into the map vector
tempvector.clear(); // clear the temp vector readt for the next value
}
}
void Map::DrawMap(sf::RenderWindow &Window)
{
Player playermap;
for(i = 0; i < mapVector.size(); i++)
{
for(j = 0; j < mapVector[i].size(); j++)
{
if(mapVector[i][j] == 1)
{
sprite[j].SetImage(BlockImage);
sprite[j].SetPosition(j * BLOCKSIZE, i * BLOCKSIZE);
platformBoundingBox[j].Bottom = sprite[j].GetPosition().y;
platformBoundingBox[j].Left = sprite[j].GetPosition().x - 5;
platformBoundingBox[j].Right = sprite[j].GetPosition().x;
Window.Draw(sprite[j]);
}
else if(mapVector[i][j] == 2)
{
sprite[j].SetImage(GemImage);
sprite[j].SetPosition(j * BLOCKSIZE, i * BLOCKSIZE);
platformBoundingBox[j].Top = sprite[j].GetPosition().y - 5;
platformBoundingBox[j].Bottom = sprite[j].GetPosition().y;
platformBoundingBox[j].Left = sprite[j].GetPosition().x - 5;
platformBoundingBox[j].Right = sprite[j].GetPosition().x;
Window.Draw(sprite[j]);
}
else if(mapVector[i][j] == 3)
{
sprite[j].SetImage(leftBlockImage);
sprite[j].SetPosition(j * BLOCKSIZE, i * BLOCKSIZE);
platformBoundingBox[j].Top = sprite[i].GetPosition().y - 5;
platformBoundingBox[j].Bottom = sprite[i].GetPosition().y;
platformBoundingBox[j].Left = sprite[i].GetPosition().x - 5;
platformBoundingBox[j].Right = sprite[i].GetPosition().x;
Window.Draw(sprite[j]);
}
else if(mapVector[i][j] == 4)
{
sprite[j].SetImage(rightBlockImage);
sprite[j].SetPosition(j * BLOCKSIZE, i * BLOCKSIZE);
platformBoundingBox[j].Top = sprite[i].GetPosition().y - 5;
platformBoundingBox[j].Bottom = sprite[i].GetPosition().y;
platformBoundingBox[j].Left = sprite[i].GetPosition().x - 5;
platformBoundingBox[j].Right = sprite[i].GetPosition().x;
Window.Draw(sprite[j]);
}
}
}
}
void Map::collisions(float x, float y)
{
Player playermap;
this->x = x;
this->y = y;
playerboundingbox.Top = y - 5;
playerboundingbox.Bottom = y ;
playerboundingbox.Left = x - 5;
playerboundingbox.Right = x;
for(i = 0; i < 100; i++)
{
if(playerboundingbox.Intersects(platformBoundingBox[i]))
cout << " praise the lord";
}
}
答案 0 :(得分：0)
请切换到SFML 2，因为1.6有很多错误。
假设您创建了一个名为 handler 的类，您将在其中放置：
handler::handler()
// window initialization
Map Map; // here initialize the Map class
/* why don't use Map::Map( ctor) for initialization? */
// player initialization
// run the program as long as the window is open
while (window.isOpen())
{
// check all the window's events that were triggered since the last iteration of the loop
sf::Event event;
while (window.pollEvent(event))
{
// "close requested" event: we close the window
if (event.type == sf::Event::Closed)
window.close();
}
window.clear();
//draw player
Map.DrawMap(); // also need to improve the drawing for less lag
window.display();
update(Map &Map, Player &Player);
// every time to use & because without the compiler will create another object
}
}
update(Map &Map, Player &Player)
{
// verify if exists some interacts
if (intersects(Map &Map, Player &Player))
{
//verify from where and put to the correct position
/* e.g: if we have a collide with a down tile map will say something like this:
Player.setPosition(Player.getPosition().x, (Player.getGlobalBounds().top+Player.getGlobalBounds().height)-(Map.getGlobalBounds().top-(Player.getGlobalBounds().top+Player.getGlobalBounds().height)); */
}
}
intersects(Map &Map, Player &Player)
{
sf::FloatRect fPlayer = Player.getGlobalBounds();
for (int i=0; i<Map.NrOfYourTiles; ++i)
{
sf::FloatRect fMap = YourTile.getGlobalBounds();
if (fPlayer.intersects(fMap))
return 1;
}
return 0;
}
希望这对您有帮助（代码在SFML 2.0中）。您可以在创建者sfml-dev.org的论坛上找到更多帮助。