#include <SFML/Window.hpp>
#include <SFML/Graphics.hpp>
#include <SFML/System.hpp>
const int TILE_WIDTH = 64;
const int TILE_HEIGHT = 64;
const int TILE_CYAN = 0;
const int TILE_MAGENTA = 1;
const int TILE_YELLOW = 2;
const int TILE_CENTRE = 3;
const int TILE_TOP = 4;
const int TILE_TOPRIGHT = 5;
const int TILE_RIGHT = 6;
const int TILE_BOTTOMRIGHT = 7;
const int TILE_BOTTOM = 8;
const int TILE_BOTTOMLEFT = 9;
const int TILE_LEFT = 10;
const int TILE_TOPLEFT = 11;
class Tile
{
public:
Tile(const int col, const int row, int TileType);
int GetType();
sf::Sprite Sprite;
void SetPos(int row, int col);
int offsetX;
int offsetY;
private:
int Type;
};
Tile::Tile(const int col, const int row, int TileType)
{
sf::Image TileMap;
TileMap.LoadFromFile("tileset.bmp");
Sprite.SetCenter(0, 0);
Sprite.SetImage(TileMap);
Sprite.SetPosition(static_cast<float>(col * TILE_WIDTH), static_cast<float>(row * TILE_HEIGHT));
Type = TileType;
switch(Type)
{
case TILE_CYAN:
offsetX = 0;
offsetY = 0;
break;
case TILE_MAGENTA:
offsetX = 0;
offsetY = 1;
break;
case TILE_YELLOW:
offsetX = 0;
offsetY = 2;
break;
case TILE_TOPRIGHT:
offsetX = 3;
offsetY = 0;
break;
case TILE_RIGHT:
offsetX = 3;
offsetY = 1;
break;
case TILE_BOTTOMRIGHT:
offsetX = 3;
offsetY = 2;
break;
case TILE_BOTTOM:
offsetX = 2;
offsetY = 2;
break;
case TILE_BOTTOMLEFT:
offsetX = 1;
offsetY = 2;
break;
case TILE_LEFT:
offsetX = 1;
offsetY = 1;
break;
case TILE_TOPLEFT:
offsetX = 1;
offsetY = 0;
break;
case TILE_TOP:
offsetX = 2;
offsetY = 0;
break;
case TILE_CENTRE:
offsetX = 2;
offsetY = 1;
break;
}
Sprite.SetSubRect(sf::IntRect(offsetX * TILE_WIDTH, offsetY * TILE_HEIGHT, TILE_WIDTH, TILE_HEIGHT));
}
int Tile::GetType()
{
return Type;
}
void Tile::SetPos(int row, int col)
{
Sprite.SetPosition(static_cast<float>(col * TILE_WIDTH), static_cast<float>(row * TILE_HEIGHT));
}
int main()
{
sf::RenderWindow App(sf::VideoMode(1024, 640, 32), "Cool McAwesome's Adventure");
Tile Tile1(1,1,1);
while (App.IsOpened())
{
sf::Event Event;
while (App.GetEvent(Event))
{
if (Event.Type = Event.Closed)
{
App.Close();
}
}
App.Clear();
App.Draw(Tile1.Sprite);
App.Display();
}
return 0;
}
Help with SFML
Author
I have been coding a 2d tile based puzzle game using SFML and I am having problems getting my code to work. It compiles and runs but upon launching the app nothing will display [depressed].
Code follows
Hi,
Looking through your code, here are a few questions that will help you find out your problems:
- what is the constructor of sf::IntRect ? Do you pass it correct values ?
- what will be the behavior of your program when you close the window ?
Hope that helps.
Ghostly yours,
Red.
Looking through your code, here are a few questions that will help you find out your problems:
- what is the constructor of sf::IntRect ? Do you pass it correct values ?
- what will be the behavior of your program when you close the window ?
Hope that helps.
Ghostly yours,
Red.
Author
Thanks for those tips, got it working
Also, how would I go about making an array of pointers to tile objects?
Also, how would I go about making an array of pointers to tile objects?
Hi,
Making a tile array is a no brainer:
- either you make a one dimension pointer array (knowing the map width in tiles)
- or you make a two dimension pointer array.
What is more interesting is adding features to that tile array like:
- tile coloring to show zones (like firing, sight or movement areas)
- path-finding
As a side note, you can improve your map system. I propose a tile structure and a map class:
Hope that helps.
Ghostly yours,
Red.
Making a tile array is a no brainer:
- either you make a one dimension pointer array (knowing the map width in tiles)
Tile _Map[MAP_WIDTH*MAP_HEIGHT];//returns NULL pointer when the coordinates are beyond the mapTile* GetTile(int pCol, int pRow){ if (pRow > MAP_HEIGHT) return 0; if (pCol > MAP_WIDTH) return 0; return &_Map[pCol + (pRow * MAP_WIDTH)];}- or you make a two dimension pointer array.
Tile _Map[MAP_WIDTH][MAP_HEIGHT];//returns NULL pointer when the coordinates are beyond the mapTile* GetTile(int pCol, int pRow){ if (pRow > MAP_HEIGHT) return 0; if (pCol > MAP_WIDTH) return 0; return &_Map[pCol][pRow];}What is more interesting is adding features to that tile array like:
- tile coloring to show zones (like firing, sight or movement areas)
- path-finding
As a side note, you can improve your map system. I propose a tile structure and a map class:
typedef struct{ int _Type; //TILE_CYAN, ... You could also declare types in a enumeration} TILE;class Map{ public: //Map constructor //initiates all the TILE array with a basic tile type Map(sf::RenderWindow& pWindow) //Map destructor ~Map(void); //use your tile constructor to populate the STL map of sprites bool InitSprites(std::string& pFilename); //sets a TILE to a type //also controls that pType is an allowed value void SetType(int pCol, int pRow, int pType); //returns a TILE type const int GetType(int pCol, in pRow); //Draws the Map void Render(void) { sf::Sprite* tSprite = 0; for (int i = 0; i < MAP_WIDTH*MAP_HEIGHT; i++) { tSprite = &_Sprites[_TileMap]; tSprite->SetPosition((i % MAP_WIDTH)*TILE_WIDTH, (i / MAP_WIDTH)*TILE_HEIGHT); _Window->Draw(*tSprite); } }; private: sf::RenderWindow* _Window; std::map<int, sf::Sprite> _Sprites; TILE _TileMap[MAP_WIDTH*MAP_HEIGHT];};Hope that helps.
Ghostly yours,
Red.
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