3D Maze

Creating a 3D maze with raycasting

How to Compile and Run

• SDL2 and SDL2_image are required to compile and use this program
• Compile with gcc 4.8.4 with the following flags: gcc -O2 -g -Wall -Werror -Wextra -pedantic -Isrc/headers *.c -lSDL2 -lSDL2_image -lm -o maze `sdl2-config --cflags --libs` OR make -f Makefile
• Run the maze: ./maze or ./maze maps/<map_name>
• Disable textures: ./maze no_tex or ./maze maps/<map_name> no_tex

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Synopsis

This 3D maze uses raycasting to draw the maze walls, utilizing LodeV's method of using vectors to calculate ray length. By default the maze uses textures but textures can be disabled on execution.

Controls

• W : move forward
• S : move backward
• A : rotate camera left
• D : rotate camera right
• Q : strafe left
• E : strafe right
• F : toggle fullscreen
• ESC : quit

Maps

The maps are defined in 2D arrays in text files, which are parsed when passed as an argument to the maze executable. 0 represents open space, all other integers are drawn as walls.

Example:

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 2 2 2 2 2 0 0 0 0 3 0 3 0 3 0 0 0 1
1 0 0 0 0 0 2 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 2 0 0 0 2 0 0 0 0 3 0 0 0 3 0 0 0 1
1 0 0 0 0 0 2 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 2 2 0 2 2 0 0 0 0 3 0 3 0 3 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 4 4 4 4 4 4 4 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 4 0 4 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 4 0 0 0 0 5 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 4 0 4 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 4 0 4 4 4 4 4 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 4 4 4 4 4 4 4 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

To-Do

• Improved map parser
• Better error handling
• More textures
• Enemies / obstacles / objects
• Maze goal that loads next map
• Rain

Resources

• SDL2 API
• LazyFoo Beginning Game Programming
• Ray-Casting Tutorial For Game Development And Other Purposes by F. Permadi
• LodeV Raycasting Tutorial
• Game Engine Black Book