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#include "utils.h"
#include <stddef.h>
#define MAX_TEX_SIZE 16
static Texture2D texture_slots[MAX_TEX_SIZE] = {0};
static i32 texture_modtimes[MAX_TEX_SIZE] = {0};
static const char* texture_paths[MAX_TEX_SIZE] = {0};
void init_tex_sys(void)
{
for(i32 i = 0; i < MAX_TEX_SIZE; ++i){
texture_slots[i] = (Texture2D){0};
texture_modtimes[i] = BLANK_DEFAULT;
texture_paths[i] = NULL;
}
}
i32 load_new_tex(const char* path)
{
i32 current_idx = BLANK_DEFAULT;
for(i32 i = 0; i < MAX_TEX_SIZE; ++i){
if(texture_slots[i].id <= 0){
current_idx = i;
texture_slots[current_idx] = LoadTexture(path);
texture_modtimes[current_idx] = GetFileModTime(path);
texture_paths[current_idx] = path;
break;
}
}
//TODO: Handle slots a bit better.
if(current_idx == BLANK_DEFAULT)
TRACELOG(LOG_WARNING, "Warning: No more empty texture slots.\n");
return current_idx;
}
void draw_texture(i32 idx, i32 x, i32 y)
{
if(idx < 0 || idx >= MAX_TEX_SIZE){
TRACELOG(LOG_WARNING,"Bounds check: Attempted to draw texture from non-existent index %i.\n", idx);
return;
}
DrawTexture(texture_slots[idx], x, y, WHITE);
}
void update_textures(void)
{
for(i32 i = 0; i < MAX_TEX_SIZE; ++i){
if(texture_slots[i].id > 0){
i32 current_mod = GetFileModTime(texture_paths[i]);
if(current_mod != texture_modtimes[i]){
texture_modtimes[i] = current_mod;
UnloadTexture(texture_slots[i]);
texture_slots[i] = LoadTexture(texture_paths[i]);
}
}
}
}
void unload_tex(i32 idx)
{
if(idx < 0 || idx >= MAX_TEX_SIZE){
TRACELOG(LOG_WARNING,"Bounds check: Attempted to unload texture from non-existent index %i.\n", idx);
return;
}
UnloadTexture(texture_slots[idx]);
texture_slots[idx] = (Texture2D){0};
texture_modtimes[idx] = BLANK_DEFAULT;
texture_paths[idx] = NULL;
}
void unload_active_textures(void)
{
for(i32 i = 0; i < MAX_TEX_SIZE; ++i){
if(texture_slots[i].id > 0)
unload_tex(i);
}
}
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