/*
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.  
COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
*/

/*
 *
 * Definitions for the laser code.
 *
 */

#ifndef _LASER_H
#define _LASER_H

#define	CONCUSSION_ID	8
#define	FLARE_ID			9							//	NOTE: This MUST correspond to the ID generated at bitmaps.tbl read time.
#define	LASER_ID			10
#define	VULCAN_ID		11							//	NOTE: This MUST correspond to the ID generated at bitmaps.tbl read time.
#define	XSPREADFIRE_ID	12							//	NOTE: This MUST correspond to the ID generated at bitmaps.tbl read time.
#define	PLASMA_ID		13							//	NOTE: This MUST correspond to the ID generated at bitmaps.tbl read time.
#define	FUSION_ID		14							//	NOTE: This MUST correspond to the ID generated at bitmaps.tbl read time.
#define	HOMING_ID		15
#define	PROXIMITY_ID	16
#define	SMART_ID			17
#define	MEGA_ID			18
#define	PLAYER_SMART_HOMING_ID 19
#define	SPREADFIRE_ID	20
#define	SUPER_MECH_MISS	21
#define	REGULAR_MECH_MISS	22
#define	SILENT_SPREADFIRE_ID	23
#define	ROBOT_SMART_HOMING_ID ((N_weapon_types<29)?(PLAYER_SMART_HOMING_ID):(29)) // NOTE: Shareware does not have it's own Smart structure for bots. It was introduced later to make Smart blobs from lvl 7 boss easier to dodge. So if we do not have this type, revert to player's Smart behaviour..

// These are new defines for the value of 'flags' passed to do_laser_firing.
// The purpose is to collect other flags like QUAD_LASER and Spreadfire_toggle
// into a single 8-bit quantity so it can be easily used in network mode.

#define LASER_QUAD 1
#define LASER_SPREADFIRE_TOGGLED 2

#define MAX_LASER_LEVEL		3		//	Note, laser levels are numbered from 0.
#define MAX_LASER_BITMAPS	6

//	For muzzle firing casting light.
#define	MUZZLE_QUEUE_MAX	8

//	Constants governing homing missile behavior.
//	MIN_TRACKABLE_DOT gets inversely scaled by FrameTime and stuffed in Min_trackable_dot
#define	MIN_TRACKABLE_DOT					(3*F1_0/4)
#define	MAX_TRACKABLE_DIST				(F1_0*250)
#define	HOMING_MISSILE_STRAIGHT_TIME	(F1_0/8)			//	Changed as per request of John, Adam, Yuan, but mostly John

struct object;

extern fix Min_trackable_dot;				//	MIN_TRACKABLE_DOT inversely scaled by FrameTime

void Laser_render( struct object *obj );
void Laser_player_fire( struct object * obj, int type, int gun_num, int make_sound, int harmless_flag );
void Laser_player_fire_spread(struct object *obj, int laser_type, int gun_num, fix spreadr, fix spreadu, int make_sound, int harmless);
void Laser_do_weapon_sequence( struct object *obj );
void Flare_create(struct object *obj);
int laser_are_related( int o1, int o2 );

extern int do_laser_firing_player(void);
extern void do_missile_firing(int drop_bomb);
extern void net_missile_firing(int player, int weapon, int flags);

int Laser_create_new( vms_vector * direction, vms_vector * position, int segnum, int parent, int type, int make_sound );

//	Fires a laser-type weapon (a Primary weapon)
//	Fires from object objnum, weapon type weapon_id.
//	Assumes that it is firing from a player object, so it knows which gun to fire from.
//	Returns the number of shots actually fired, which will typically be 1, but could be
//	higher for low frame rates when rapidfire weapons, such as vulcan or plasma are fired.
extern int do_laser_firing(int objnum, int weapon_id, int level, int flags, int nfires);

//	Easier to call than Laser_create_new because it determines the segment containing the firing point
//	and deals with it being stuck in an object or through a wall.
//	Fires a laser of type "weapon_type" from an object (parent) in the direction "direction" from the position "position"
//	Returns object number of laser fired or -1 if not possible to fire laser.
int Laser_create_new_easy( vms_vector * direction, vms_vector * position, int parent, int weapon_type, int make_sound );

extern void create_smart_children(struct object *objp);
extern int object_to_object_visibility(struct object *obj1, struct object *obj2, int trans_type);

extern int		Muzzle_queue_index;

typedef struct muzzle_info {
	fix64		create_time;
	short		segnum;
	vms_vector	pos;
}	muzzle_info;

extern muzzle_info		Muzzle_data[MUZZLE_QUEUE_MAX];

extern int Laser_drop_vulcan_ammo;

#endif