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#include "utils.h"
Vector2 randomDirection2(int seed, int* nextSeed)
{
Vector2 direction;
direction.x = FT_RANDOM16(seed) % RANDOM_DIRECTION_UNITS;
direction.y = FT_RANDOM16(seed) % RANDOM_DIRECTION_UNITS;
direction.x -= RANDOM_DIRECTION_UNITS / 2.0;
direction.y -= RANDOM_DIRECTION_UNITS / 2.0;
if (nextSeed != NULL)
{
*nextSeed = seed;
}
return Vector2Normalize(direction);
}
Vector3 randomDirection3(int seed, int* nextSeed)
{
Vector3 direction;
direction.x = FT_RANDOM16(seed) % RANDOM_DIRECTION_UNITS;
direction.y = FT_RANDOM16(seed) % RANDOM_DIRECTION_UNITS;
direction.z = FT_RANDOM16(seed) % RANDOM_DIRECTION_UNITS;
direction.x -= RANDOM_DIRECTION_UNITS / 2.0;
direction.y -= RANDOM_DIRECTION_UNITS / 2.0;
direction.z -= RANDOM_DIRECTION_UNITS / 2.0;
if (nextSeed != NULL)
{
*nextSeed = seed;
}
return Vector3Normalize(direction);
}
Image generateCubemapImage(bool** cubemap, int width, int height)
{
// Allocate pixel data.
Image image = (Image){
.data = FT_CALLOC(width * height, sizeof(Color)),
.width = width,
.height = height,
.format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8,
.mipmaps = 1
};
if (image.data == NULL)
{
ALLOCATION_ERROR;
return image;
}
// Convert cubemap to image data.
int index = 0;
for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
((Color*)image.data)[index] = cubemap[y][x] ? BLACK : WHITE;
++index;
}
}
return image;
}
// Why does the universe feel strange to exist in?
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