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#include <SDL.h>
#include "init.h"
#include "logging.h"
#include "resources/image.h"
#include "resources/map.h"
#include "viewport.h"
#include "area.h"

#define DEMO()                                                                 \
	do {                                                                   \
		vp->x = x + map->tilewidth / 2 - vp->w / 2;                    \
		vp->y = y + map->tileheight / 2 - vp->h / 2;                   \
		render_area_to_viewport(a, vp);                                \
		SDL_Flip(vp->screen);                                          \
		SDL_Delay(10);                                                 \
		++i;                                                           \
	} while (0)

int
main(void)
{
	struct viewport *vp;
	struct map *map;
	struct area *a;
	SDL_Color colors[256];
	struct map_exit *e;
	int i;
	Uint32 start, end;
	int x, y;

	init();
	vp = init_viewport(240, 160, 8);

	map = map_get("data/forest1-8bit.tmx");
	a = area_new(map);

	for (i = 0; i < 256; ++i) {
		colors[i].r = (i % 8) * 36;
		colors[i].g = (i % 64 / 8) * 36;
		colors[i].b = (i / 64) * 85;
	}
	if (!SDL_SetPalette(vp->screen, SDL_LOGPAL, colors, 0, 256)) {
		warn("Failed to set palette");
	}
	for (i = 0; i < 256; ++i) {
		colors[i].r = i;
		colors[i].g = i;
		colors[i].b = i;
	}
/*	if (!SDL_SetPalette(vp->screen, SDL_PHYSPAL, colors, 0, 256)) {
		warn("Failed to set palette");
	}*/

	for (e = map->map_exits_head; e != NULL; e = e->next) {
		debug("Map exit (size %dx%d) at (%d,%d) "
				"to map %s (size %dx%d) at (%d,%d)",
				e->width, e->height,
				e->x, e->y,
				e->target_map_name,
				e->target_map->width, e->target_map->height,
				e->target_x_coord, e->target_y_coord);
	}

	/* Demo */
	i = 0;
	start = SDL_GetTicks();
	x = 19 * map->tilewidth ;
	y = 38 * map->tileheight;
	for (; y > 34 * map->tileheight; y -= 2) DEMO(); /* Up */
	for (; x < 23 * map->tilewidth ; x += 2) DEMO(); /* Right */
	for (; y > 16 * map->tileheight; y -= 2) DEMO(); /* Up */
	for (; x > 15 * map->tilewidth ; x -= 2) DEMO(); /* Left */
	for (; y < 25 * map->tileheight; y += 2) DEMO(); /* Down */
	for (; x >  4 * map->tilewidth ; x -= 2) DEMO(); /* Left */
	for (; y > 18 * map->tileheight; y -= 2) DEMO(); /* Up */
	for (; x <  9 * map->tilewidth ; x += 2) DEMO(); /* Right */
	for (; y >  5 * map->tileheight; y -= 2) DEMO(); /* Up */
	for (; x < 15 * map->tilewidth ; x += 2) DEMO(); /* Right */
	for (; y >  1 * map->tileheight; y -= 2) DEMO(); /* Up */
	end = SDL_GetTicks();
	debug("Rendered %d frames in %d milliseconds", i, end - start);

	quit(0);

	/* Control doesn't actually reach here. */
	return 0;
}