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#include <stdio.h>
#include <stdlib.h>
#include "typedef.h"
#include "tiles.h"
#include "ppm.h"
extern size_t TILES;
extern size_t TILE_WIDTH;
extern size_t TILE_HEIGHT;
small_t DIMENTIONS = 0;
small_t *(tiles[TILES_CAP]);
small_t tile_connections[TILES_CAP][SIDES_MAX];
static int rotate(int x, int y, int r, int w)
{
switch(r) {
case 0: // no roatate
return y * w + x;
case 1: // right
return (w*w - w) + y - (x * w);
case 2: // left
return (w-1) - y + (x * w);
case 3: // down
return (w*w-1) - (y * w) - x;
}
return -1;
}
static void rotate_tiles(char *t, int i, int r)
{
tiles[i] = malloc(TILE_WIDTH * TILE_HEIGHT * 3);
for(size_t y = 0; y < TILE_HEIGHT; y++)
for(size_t x = 0; x < TILE_WIDTH; x++)
for(int k = 0; k < 3; k++)
tiles[i][(y * TILE_WIDTH + x)*3 + k] = t[(rotate(x, y, r, TILE_WIDTH))*3 + k];
}
static void rotate_connections(small_t (*tc)[SIDES_MAX], int i, int n, int r)
{
for(int y = 0; y < 2; y++)
for(int x = 0; x < 2; x++)
tile_connections[n][y*2 + x] = tc[i][rotate(x, y, r, 2)];
}
static void load_tile_data(small_t (*tc)[SIDES_MAX], char *ts, size_t *tid)
{
char file_path[32] = "files/tiles/tiles.dat";
FILE *fp = fopen(file_path, "rb");
if(!fp) {
err("Could not open file: %s\n", file_path);
exit(EXIT_FAILURE);
}
fread(&DIMENTIONS, sizeof(DIMENTIONS), 1, fp);
fread(tid, sizeof(size_t), 1, fp);
for(size_t i = 0; i < *tid; i++) {
fread(tc[i], sizeof(small_t), SIDES, fp);
fread(&(ts[i]), sizeof(char), 1, fp);
}
fclose(fp);
}
void load_tiles()
{
size_t tid = 0;
small_t tile_con[TILES_CAP][SIDES_MAX] = {0};
char tile_sym[TILES_CAP];
load_tile_data(tile_con, tile_sym, &tid);
if(tid == 0) {
fprintf(stderr, "ERROR: No tiles could be loaded\n");
exit(EXIT_FAILURE);
}
size_t n = 0;
for(size_t i = 0; i < tid; i++, n++)
{
char file_path[128];
sprintf(file_path, "files/tiles/tile_%ld.ppm", i);
char *t = load_from_ppm(file_path, &TILE_WIDTH, &TILE_HEIGHT);
switch(tile_sym[i])
{
case 'X':
rotate_tiles(t, n, 0);
rotate_connections(tile_con, i, n, 0);
break;
case 'T':
for(int j = 0; j < SIDES; j++) {
rotate_tiles(t, n, j);
rotate_connections(tile_con, i, n, j);
n++;
} n--;
break;
case 'I':
rotate_tiles(t, n, 0);
rotate_connections(tile_con, i, n, 0);
n++;
rotate_tiles(t, n, 1);
rotate_connections(tile_con, i, n, 1);
break;
case '/':
rotate_tiles(t, n, 0);
rotate_connections(tile_con, i, n, 0);
n++;
rotate_tiles(t, n, 3);
rotate_connections(tile_con, i, n, 3);
break;
default:
err("Symetry Character not recognized: '%c'", tile_sym[i]);
exit(EXIT_FAILURE);
}
free_ppm(t);
if(n > TILES_CAP) {
err("Too many tiles: %ld\n", n);
exit(EXIT_FAILURE);
}
}
TILES = n;
}
void free_tiles()
{
for(size_t i = 0; i < TILES; i++)
free(tiles[i]);
}
void print_tiles()
{
for(size_t i = 0; i < TILES; i++)
{
printf("Tile: %ld\n", i);
for(int n = 0; n < 4; n++) {
printf("%d", tile_connections[i][n]);
} printf("\n");
for(size_t y = 0; y < TILE_HEIGHT; y++)
{
for(size_t x = 0; x < TILE_WIDTH; x++)
putchar((tiles[i][(y * TILE_WIDTH + x)*3 + 0]) == 0 ? '#' : '.');
putchar('\n');
}
putchar('\n');
}
}
int get_tile_pixel(size_t t, size_t x, size_t y, int k)
{
return tiles[t][(y * TILE_WIDTH + x)*3 + k];
}
small_t (*get_tile_connections())[SIDES_MAX]
{
return tile_connections;
}
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