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/apps/scenery: make the world generate as you go

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veclav talica 2024-10-01 15:31:18 +03:00
parent 9efcd79ba6
commit edc6fb1e5c
1 changed files with 5 additions and 2 deletions
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7
apps/scenery/scenes/ingame.c
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@ -56,8 +56,11 @@ static void ingame_tick(State *state) {
#define TERRAIN_FREQUENCY 0.1f #define TERRAIN_FREQUENCY 0.1f
for (int y = 64; y--;) { for (int ly = 64; ly--;) {
for (int x = 64; x--;) { for (int lx = 64; lx--;) {
float x = SDL_truncf(scn->cam.pos.x + 32 - lx);
float y = SDL_truncf(scn->cam.pos.z + 32 - ly);
float d0 = stb_perlin_noise3((float)x * TERRAIN_FREQUENCY, (float)y * TERRAIN_FREQUENCY, 0, 0, 0, 0) * 3 - 6; float d0 = stb_perlin_noise3((float)x * TERRAIN_FREQUENCY, (float)y * TERRAIN_FREQUENCY, 0, 0, 0, 0) * 3 - 6;
float d1 = stb_perlin_noise3((float)(x + 1) * TERRAIN_FREQUENCY, (float)y * TERRAIN_FREQUENCY, 0, 0, 0, 0) * 3 - 6; float d1 = stb_perlin_noise3((float)(x + 1) * TERRAIN_FREQUENCY, (float)y * TERRAIN_FREQUENCY, 0, 0, 0, 0) * 3 - 6;
float d2 = stb_perlin_noise3((float)(x + 1) * TERRAIN_FREQUENCY, (float)(y - 1) * TERRAIN_FREQUENCY, 0, 0, 0, 0) * 3 - 6; float d2 = stb_perlin_noise3((float)(x + 1) * TERRAIN_FREQUENCY, (float)(y - 1) * TERRAIN_FREQUENCY, 0, 0, 0, 0) * 3 - 6;