#include <string.h>
#include <stdio.h>

#include "level.h"

void init_level(Game *g, Level *l, char *filepath) {
  char *file_text = LoadFileText(filepath);
  l->data = malloc(strlen(file_text));
  char *line = NULL, *other_guy = NULL;
  char *first_line = strtok_r(file_text, "\n", &line);
  char* datum = strtok_r(first_line, ",", &other_guy);

  l->data_size = 0;
  do {
    l->data[l->data_size++] = atoi(datum);
  } while ((datum = strtok_r(NULL, ",", &other_guy)));
  l->width = l->data_size;

  while ((first_line = strtok_r(NULL, "\n", &line))) {
    datum = strtok_r(first_line, ",", &other_guy);
    do {
      l->data[l->data_size++] = (char)atoi(datum);
    } while ((datum = strtok_r(NULL, ",", &other_guy)));
  }
  l->length = l->data_size / l->width;

  printf(
	 "Loaded level from '%s': %dx%d = %zd total bytes\n",
	 filepath,
	 l->length,
	 l->width,
	 l->data_size);
  UnloadFileText(file_text);

  l->game = g;
}

Color COLORS[4] = {BLACK, DARKGRAY, GRAY, LIGHTGRAY};
void draw_tile(Level *l, float x, float y) {
  size_t index = (size_t)(x + (y * l->width)) % l->data_size;
  size_t data = l->data[index];
  Color c = COLORS[data];
  DrawRectangle(x * 32, y * 32, 32, 32, c);
}

void draw_level(Level *l) {
  Camera2D *camera = l->game->camera;
  float y = l->game->player->position.y;
  y /= 32;

  for (int i = 0; i < l->width; i++) {
    for (int j = y - 15; j < y + 15; j++) {
      draw_tile(l, i, j);
    }
  }
}