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Fix texture map

Browse Source 
Add door to map
Added ability to "open" a door by pressing e

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>
This commit is contained in:
Hans Kokx
2026-09-02 18:53:11 +02:00
parent 7fec071ce0
commit 3f6caff7e6
1 changed files with 94 additions and 75 deletions
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raycaster.c
+94 -75
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@@ -23,16 +23,18 @@
// 270° => 3π/2 radians (BOTTOM)
// 360° => 2π radians (RIGHT)
// * Define the world
// *MARK: Define the world
int mapX = 8, mapY = 8, mapSize = 32;
float movementRestriction;
// clang-format off
int mapWalls[] =
{
1,1,1,1,1,1,1,1,
1,0,0,0,0,0,0,1,
1,0,1,0,0,0,0,1,
1,0,1,0,0,0,0,1,
1,0,4,0,0,0,0,1,
1,0,0,0,0,0,0,1,
1,0,0,0,0,2,0,1,
1,0,0,0,0,0,0,1,
@@ -118,78 +120,78 @@ int All_Textures[] = // All 32x32 textures
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
//Window
1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,1,
1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,
1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
//Door
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, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,0,
0,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,0,
0,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,0,
0,0,0,1,1,1,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,1,1,1,0,0,0,
0,0,0,1,0,0,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,0,0,1,0,0,0,
0,0,0,1,0,0,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,0,0,1,0,0,0,
0,0,0,1,0,0,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,0,0,1,0,0,0,
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,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,1,1,1,1,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,1,1,1,0,0,0,0,
0,0,0,1,0,0,0,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,0,0,1,0,0,0,0,
0,0,0,1,0,0,0,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,0,0,1,0,0,0,0,
0,0,0,1,0,0,0,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,0,0,1,0,0,0,0,
0,0,0,1,0,0,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,0,0,1,0,0,0,
0,0,0,1,0,0,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,0,0,1,0,0,0,
0,0,0,1,0,0,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,0,0,1,0,0,0,
0,0,0,1,0,0,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,0,0,1,0,0,0,
0,0,0,1,0,0,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,0,0,1,0,0,0,
0,0,0,1,0,0,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,0,0,1,0,0,0,
0,0,0,1,0,0,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,0,0,1,0,0,0,
0,0,0,1,1,1,1, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 1,1,1,1,0,0,0,
0,0,0,1,0,0,0,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,0,0,1,0,0,0,0,
0,0,0,1,0,0,0,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,0,0,1,0,0,0,0,
0,0,0,1,0,0,0,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,0,0,1,0,0,0,0,
0,0,0,1,0,0,0,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,0,0,1,0,0,0,0,
0,0,0,1,0,0,0,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,0,0,1,0,0,0,0,
0,0,0,1,0,0,0,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,0,0,1,0,0,0,0,
0,0,0,1,0,0,0,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,0,0,1,0,0,0,0,
0,0,0,1,1,1,1,1, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 1,1,1,1,0,0,0,0,
0,0,0,0,0,0,0, 0,0,0,0,1,0,1, 1,0,1,0,0,0,0, 0,0,0,0,0,0,0,
0,0,0,0,0,0,0, 0,0,1,1,1,0,1, 1,0,1,1,1,0,0, 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, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,0,
0,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,0,
0,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 0,0,0,0,0,0,0,
0,0,0,0,0,0,0, 0,0,0,0,0,0,1, 1,0,0,0,0,0,0, 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, 1,1,1,1,1,1,0,
0,0,0,0,0,0,0,0, 0,0,0,0,1,0,0,1, 1,0,1,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0, 0,0,1,1,1,0,0,1, 1,0,1,1,1,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1, 1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,0,
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,
0,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,0,
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,
0,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,0,
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,
0,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,0,
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,
0,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,1, 1,1,1,1,1,1,0,
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,
0,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,0,
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,
0,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,0,
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,
0,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,0,
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,
0,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,0,
};
// clang-format on
@@ -199,7 +201,7 @@ typedef struct
} ButtonKeys;
ButtonKeys Keys;
// * ---------------- HELPERS --------------------------------------------------
// *MARK: HELPERS
// Function to check if a number is a power of 2
int isPowerOfTwo(int n)
@@ -232,7 +234,7 @@ float distance(float ax, float ay, float bx, float by, float ang)
return (sqrt((bx - ax) * (bx - ax) + (by - ay) * (by - ay)));
}
// * ---------------- PLAYER ---------------------------------------------------
// *MARK: PLAYER
// Player position (playerX, playerY), delta (playerDeltaX, playerDeltaY), and angle (pa)
float playerX, playerY, playerDeltaX, playerDeltaY, playerAngle;
@@ -255,7 +257,7 @@ void drawPlayer2D()
glEnd();
}
// * ---------------- Draw Rays and Walls --------------------------------------
// *MARK: Draw Rays and Walls
void drawRays2D()
{
@@ -945,11 +947,12 @@ void drawFloor()
glEnd();
}
// * ---------------- MAIN -----------------------------------------------------
// *MARK: MAIN
float frame1, frame2, fps;
// * Main rendering
// *MARK: Main rendering
void display()
{
// Frames per second
@@ -1004,8 +1007,6 @@ void display()
}
// We need to check if we're going to bump into a wall and prevent that from happening.
float movementRestriction = mapSize / 4;
int xOffset = 0;
if (playerDeltaX < 0)
{
@@ -1082,7 +1083,8 @@ void display()
glutSwapBuffers();
}
// * Key input handling
// *MARK: Key input handling
void ButtonDown(unsigned char key, int x, int y)
{
if (key == 'a')
@@ -1105,6 +1107,20 @@ void ButtonDown(unsigned char key, int x, int y)
Keys.s = 1;
}
if (key == 'e')
{
int xOffset = (playerDeltaX < 0) ? -25 : 25;
int yOffset = (playerDeltaY < 0) ? -25 : 25;
int iPlayerX = playerX / mapSize, iPlayerX_add_xOffset = (playerX + xOffset) / mapSize;
int iPlayerY = playerY / mapSize, iPlayerY_add_yOffset = (playerY + yOffset) / mapSize;
if (mapWalls[iPlayerY * mapX + iPlayerX_add_xOffset] == 4)
mapWalls[iPlayerY * mapX + iPlayerX_add_xOffset] = 0;
if (mapWalls[iPlayerY_add_yOffset * mapX + iPlayerX] == 4)
mapWalls[iPlayerY_add_yOffset * mapX + iPlayerX] = 0;
}
glutPostRedisplay();
}
@@ -1134,6 +1150,7 @@ void ButtonUp(unsigned char key, int x, int y)
}
// * Window resizing
void resize(int w, int h)
{
// Prevent division by zero
@@ -1153,7 +1170,7 @@ void resize(int w, int h)
glLoadIdentity();
}
// * Check for key presses and move the "player" accordingly
// *MARK: Init and main
void init()
{
@@ -1169,6 +1186,8 @@ void init()
playerX = 1.5f * mapSize;
playerY = 1.5f * mapSize;
movementRestriction = mapSize / 4;
playerAngle = 0;
// Calculate the initial player deltaX and deltaY