/*
world.h - shared world routines
Copyright (C) 2009 Uncle Mike

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
*/

#ifndef WORLD_H
#define WORLD_H

#define MOVE_NORMAL		0	// normal trace
#define MOVE_NOMONSTERS	1	// ignore monsters (edicts with flags (FL_MONSTER|FL_FAKECLIENT|FL_CLIENT) set)
#define MOVE_MISSILE	2	// extra size for monsters

#define CONTENTS_NONE	0	// no custom contents specified

/*
===============================================================================

ENTITY AREA CHECKING

===============================================================================
*/
#define MAX_TOTAL_ENT_LEAFS		128
#define AREA_NODES			32
#define AREA_DEPTH			4

#include "lightstyle.h"

// trace common
static inline void World_MoveBounds( const vec3_t start, vec3_t mins, vec3_t maxs, const vec3_t end, vec3_t boxmins, vec3_t boxmaxs )
{
	int	i;

	for( i = 0; i < 3; i++ )
	{
		if( end[i] > start[i] )
		{
			boxmins[i] = start[i] + mins[i] - 1.0f;
			boxmaxs[i] = end[i] + maxs[i] + 1.0f;
		}
		else
		{
			boxmins[i] = end[i] + mins[i] - 1.0f;
			boxmaxs[i] = start[i] + maxs[i] + 1.0f;
		}
	}
}

static inline trace_t World_CombineTraces( trace_t *cliptrace, trace_t *trace, edict_t *touch )
{
	if( trace->allsolid || trace->startsolid || trace->fraction < cliptrace->fraction )
	{
		trace->ent = touch;

		if( cliptrace->startsolid )
		{
			*cliptrace = *trace;
			cliptrace->startsolid = true;
		}
		else *cliptrace = *trace;
	}

	return *cliptrace;
}

/*
==================
RankForContents

Used for determine contents priority
==================
*/
static inline int RankForContents( int contents )
{
	switch( contents )
	{
	case CONTENTS_EMPTY:	return 0;
	case CONTENTS_WATER:	return 1;
	case CONTENTS_TRANSLUCENT:	return 2;
	case CONTENTS_CURRENT_0:	return 3;
	case CONTENTS_CURRENT_90:	return 4;
	case CONTENTS_CURRENT_180:	return 5;
	case CONTENTS_CURRENT_270:	return 6;
	case CONTENTS_CURRENT_UP:	return 7;
	case CONTENTS_CURRENT_DOWN:	return 8;
	case CONTENTS_SLIME:	return 9;
	case CONTENTS_LAVA:		return 10;
	case CONTENTS_SKY:		return 11;
	case CONTENTS_SOLID:	return 12;
	default:			return 13; // any user contents has more priority than default
	}
}

void World_TransformAABB( matrix4x4 transform, const vec3_t mins, const vec3_t maxs, vec3_t outmins, vec3_t outmaxs );

#define check_angles( x )	( (int)x == 90 || (int)x == 180 || (int)x == 270 || (int)x == -90 || (int)x == -180 || (int)x == -270 )

/*
===============================================================================

	EVENTS QUEUE (hl1 events code)

===============================================================================
*/
#include "event_api.h"
#include "event_args.h"

#define MAX_EVENT_QUEUE	64		// 16 simultaneous events, max

typedef struct event_info_s
{
	word		index;		// 0 implies not in use
	short		packet_index;	// Use data from state info for entity in delta_packet .
					// -1 implies separate info based on event
					// parameter signature
	short		entity_index;	// The edict this event is associated with
	float		fire_time;	// if non-zero, the time when the event should be fired
					// ( fixed up on the client )
	event_args_t	args;
	int		flags;		// reliable or not, etc. ( CLIENT ONLY )
} event_info_t;

typedef struct event_state_s
{
	event_info_t	ei[MAX_EVENT_QUEUE];
} event_state_t;

#endif//WORLD_H