/*
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

enum weapon_type_t
{
	CONCUSSION_ID = 8,
	FLARE_ID = 9,   //  NOTE: This MUST correspond to the ID generated at bitmaps.tbl read time.
	LASER_ID = 10,
	VULCAN_ID = 11,  //  NOTE: This MUST correspond to the ID generated at bitmaps.tbl read time.
	XSPREADFIRE_ID = 12,  //  NOTE: This MUST correspond to the ID generated at bitmaps.tbl read time.
	PLASMA_ID = 13,  //  NOTE: This MUST correspond to the ID generated at bitmaps.tbl read time.
	FUSION_ID = 14,  //  NOTE: This MUST correspond to the ID generated at bitmaps.tbl read time.
	HOMING_ID = 15,
	PROXIMITY_ID = 16,
	SMART_ID = 17,
	MEGA_ID = 18,

	PLAYER_SMART_HOMING_ID = 19,
	SPREADFIRE_ID = 20,
	SUPER_MECH_MISS = 21,
	REGULAR_MECH_MISS = 22,
	SILENT_SPREADFIRE_ID = 23,
	ROBOT_SMART_HOMING_ID = 29, // NOTE: check create_smart_children()!!!
};

// 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);
extern int Network_laser_track;

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