#pragma once

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

constexpr unsigned MAX_RENDER_SEGS = 500;

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

struct render_state_t
{
	struct per_segment_state_t
	{
		struct distant_object
		{
			objnum_t objnum;
		};
		std::vector<distant_object> objects;
		uint16_t Seg_depth;		//depth for this seg in Render_list
		bool processed;		//whether this entry has been processed
		rect render_window;
		per_segment_state_t() :
			Seg_depth(0), processed(false)
		{
		}
	};
	unsigned N_render_segs;
	array<segnum_t, MAX_RENDER_SEGS> Render_list;
	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;
	render_state_t() :
		N_render_segs(0)
	{
	}
};

void set_dynamic_light(render_state_t &);