#pragma once

#include <unordered_map>
#include <vector>
#include "dxxsconf.h"
#include "fwd-segment.h"
#include "objnum.h"
#include <array>

constexpr std::integral_constant<unsigned, 500> MAX_RENDER_SEGS{};

struct rect
{
	short left,top,right,bot;
};

namespace dcx {

struct render_state_t
{
	struct per_segment_state_t
	{
		struct distant_object
		{
			objnum_t objnum;
		};
		std::vector<distant_object> objects;
		uint16_t Seg_depth = 0;		//depth for this seg in Render_list
		bool processed = false;		//whether this entry has been processed
		rect render_window;
	};
	unsigned N_render_segs = 0;
	std::array<segnum_t, MAX_RENDER_SEGS> Render_list;
	std::array<short, MAX_SEGMENTS> render_pos;	//where in render_list does this segment appear?
	std::unordered_map<segnum_t, per_segment_state_t> render_seg_map;
};

}

#ifdef dsx
namespace dsx {
void set_dynamic_light(render_state_t &);
}
#endif