42 project cub3D (ray caster)
Cub3D parses files comprised of the following details:
NO,SO,EA,WEfollowed by a path to a texture file (in the xpm format), representing the textures to be displayed on the walls of the corresponding cardinal direction.F,Cfollowed byR, G, Brepresenting the colors of the floor and ceiling of the map.
This is then followed by a top down reprensentation of the map using the following characters for each tile:
1: Wall0: Empty space (floor)N/S/E/W: Starting position of the player with the letter representing the cardinal direction they are facing when the program starts.
A flood fill algorithm is used to ensure that the map is enclosed by walls.
The game uses raycasting to draw all the walls within the player's field of view, maps the corresponding textures on them and fills in the colors for the floor and ceiling given in the .cub file. A frame is only drawn when the player's position or angle changes.
The player is moved using WASD and the view is rotated using left/right arrow keys or by left clicking and dragging.
Collision between the player and the walls is calculated to prevent the player from phasing through walls.
A minimap is displayed in the top left corner showing the player's position and angle.
The program is compiled using make all
The program can be run by passing it a .cub file as parameter (examples in maps).
Here is a short demonstration of the program running.
Map used for this example:
NO textures/greystone.xpm
SO textures/colorstone.xpm
WE textures/greystone.xpm
EA textures/colorstone.xpm
C 135,245,251
F 117,142,79
1111111111 111
1000000001 101
1111000001 111
1000000001
100N001001
1010000011
100000000111111111
111111100000000001
100000111001
100000001001
100011111001
100001100001
100001000001
111111111111