path: root/sword2/events.cpp

/* Copyright (C) 1994-2003 Revolution Software Ltd
 *
 * 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 2
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * $Header$
 */

//------------------------------------------------------------------------------------
#include <stdio.h>

#include "stdafx.h"
//#include "src\driver96.h"
#include "console.h"
#include "debug.h"
#include "defs.h"
#include "events.h"
#include "interpreter.h"
#include "logic.h"
#include "memory.h"
#include "object.h"
#include "sync.h"
//------------------------------------------------------------------------------------

_event_unit	event_list[MAX_events];

//------------------------------------------------------------------------------------
void	Init_event_system(void)	//Tony4Dec96
{

	uint32	j;


	for	(j=0;j<MAX_events;j++)
		event_list[j].id=0;	//denotes free slot

}
//------------------------------------------------------------------------------------
uint32	CountEvents(void)
{
	uint32	j;
	uint32	count=0;

	for	(j=0; j<MAX_events; j++)
	{
		if (event_list[j].id)
			count++;
	}

	return (count);
}
//------------------------------------------------------------------------------------
int32 FN_request_speech(int32 *params)	//Tony13Nov96
{
//change current script - must be followed by a TERMINATE script directive

//param	0 id of target to catch the event and startup speech servicing

	uint32	j=0;



	while(1)
	{
		if	(event_list[j].id == (uint32)params[0])
			break;
		if	(!event_list[j].id)
			break;

		j++;
	}



	if	(j==MAX_events)
		Con_fatal_error("FN_set_event out of event slots (%s line %u)", __FILE__, __LINE__);

//found that slot

	event_list[j].id=params[0];	//id of person to stop
	event_list[j].interact_id=(params[0]*65536)+6;	//full script id to interact with - megas run their own 7th script



	return(IR_CONT);
}
//------------------------------------------------------------------------------------
void	Set_player_action_event(uint32	id, uint32	interact_id)	//Tony4Dec96
{
	uint32	j=0;




//	if	((event_list[j].id!=id)&&(event_list[j].id))
//		while((event_list[j].id!=id)||(event_list[j].id))	//zip along until we find a free slot
//		{	j++;
//		};

	while(1)
	{
		if	(event_list[j].id==id)
			break;
		if	(!event_list[j].id)
			break;

		j++;
	}


	if	(j==MAX_events)
		Con_fatal_error("Set_event out of event slots");

//found that slot

	event_list[j].id=id;	//id of person to stop
	event_list[j].interact_id=(interact_id*65536)+2;	//full script id of action script number 2

}
//------------------------------------------------------------------------------------
int32	FN_set_player_action_event(int32	*params)	//Tony10Feb97
{
//we want to intercept the player character and have him interact with an object - from script
//this code is the same as the mouse engine calls when you click on an object - here, a third party does the clicking IYSWIM

//note - this routine used CUR_PLAYER_ID as the target

//params	0 id to interact with

	uint32	j=0;




//search for an existing event or a slot

	while(1)
	{
		if	(event_list[j].id==CUR_PLAYER_ID)
			break;
		if	(!event_list[j].id)
			break;

		j++;
	}


	if	(j==MAX_events)
		Con_fatal_error("Set_event out of event slots");

//found that slot

	event_list[j].id=CUR_PLAYER_ID;	//id of person to stop
	event_list[j].interact_id=(params[0]*65536)+2;	//full script id of action script number 2


	return(IR_CONT);
}
//------------------------------------------------------------------------------------
int32	FN_send_event(int32	*params)	//Tony28Feb97
{
//we want to intercept the player character and have him interact with an object - from script

//			0 id to recieve event
//			1 script to run


	uint32	j=0;


//	Zdebug("*+*+* %d %d", params[0], params[1] );


//search for an existing event or a slot

	while(1)
	{
		if	(event_list[j].id==(uint32)params[0])
			break;
		if	(!event_list[j].id)
			break;

		j++;
	}


	if	(j==MAX_events)
		Con_fatal_error("fn_send_event out of event slots");

//found that slot

	event_list[j].id=params[0];	//id of person to stop
	event_list[j].interact_id=params[1];	//full script id


	return(IR_CONT);
}
//------------------------------------------------------------------------------------
int32 FN_check_event_waiting(int32 *params)	//Tony4Dec96
{
// returns yes/no in RESULT

// no params

	uint32	j;



	RESULT=0;


	for	(j=0; j<MAX_events; j++)
	{
		if	(event_list[j].id == ID)	//us?
		{
			RESULT=1;
			break;
		}
	}

	return(IR_CONT);
}
//------------------------------------------------------------------------------------
// like FN_check_event_waiting, but starts the event rather than setting RESULT to 1

int32 FN_check_for_event(int32 *params)	// James (04mar97)
{
	// no params

	uint32	j;


	for	(j=0; j<MAX_events; j++)
	{
		if	(event_list[j].id == ID)	//us?
		{
			// start the event
			LLogic.Logic_one(event_list[j].interact_id);	// run 3rd script of target object on level 1
			event_list[j].id = 0;							// clear the event slot
			return(IR_TERMINATE);
		}
	}

	return(IR_CONT);
}
//------------------------------------------------------------------------------------
// combination of FN_pause & FN_check_for_event
// - ie. does a pause, but also checks for event each cycle

int32 FN_pause_for_event(int32 *params)	// James (04mar97)
{
	// returns yes/no in RESULT

	// params:	0 pointer to object's logic structure
	//			1 number of game-cycles to pause

	Object_logic *ob_logic = (Object_logic *)params[0];
	uint32	j;


	// first, check for an event

	for	(j=0; j<MAX_events; j++)
	{
		if	(event_list[j].id == ID)						// us?
		{
			ob_logic->looping = 0;							// reset the 'looping' flag
			// start the event
			LLogic.Logic_one(event_list[j].interact_id);	// run 3rd script of target object on level 1
			event_list[j].id = 0;							// clear the event slot
			return(IR_TERMINATE);
		}
	}


	// no event, so do the FN_pause bit


	if (ob_logic->looping==0)	// start the pause
	{
		ob_logic->looping = 1;
		ob_logic->pause   = params[1];	// no. of game cycles
	}

	if (ob_logic->pause)	// if non-zero
	{
		ob_logic->pause--;	// decrement the pause count
		return(IR_REPEAT);	// drop out of script, but call this again next cycle
	}
	else					// pause count is zerp
	{
		ob_logic->looping = 0;
		return(IR_CONT);	// continue script
	}
}

//------------------------------------------------------------------------------------
uint32 Check_event_waiting(void)	//Tony4Dec96
{
//returns yes/no


	uint32	j;


	for	(j=0;j<MAX_events;j++)
		if	(event_list[j].id == ID)	//us?
			return(1);	//yes

	return(0);	//no
}
//------------------------------------------------------------------------------------
int32 FN_clear_event(int32 *params)	//Tony11Mar97
{
//	no params
//	no return vaule


	uint32	j;


	for	(j=0;j<MAX_events;j++)
		if	(event_list[j].id == ID)	//us?
		{
			event_list[j].id=0;	//clear the slot
			return(IR_CONT);	//
		}

	return(IR_CONT);	//
}
//------------------------------------------------------------------------------------
void	Start_event(void)	//Tony4Dec96
{
//call this from stuff like fn_walk
//you must follow with a return(IR_TERMINATE)

	uint32	j;


	for	(j=0;j<MAX_events;j++)
		if	(event_list[j].id == ID)	//us?
		{

			LLogic.Logic_one( event_list[j].interact_id);	//run 3rd script of target object on level 1

			event_list[j].id=0;	//clear the slot

			return;
		}

//oh dear - stop the system

	Con_fatal_error("Start_event can't find event for id %d", ID);

}
//------------------------------------------------------------------------------------
int32 FN_start_event(int32 *params)	//Tony4Dec96
{

	uint32	j;


	for	(j=0;j<MAX_events;j++)
		if	(event_list[j].id == ID)	//us?
		{

			LLogic.Logic_one(event_list[j].interact_id);	//run 3rd script of target object on level 1

			event_list[j].id=0;	//clear the slot

			return(IR_TERMINATE);
		}

//oh dear - stop the system

	Con_fatal_error("FN_start_event can't find event for id %d", ID);

	return(0);	//never called - but lets stop them bloody errors
}
//------------------------------------------------------------------------------------
void	Kill_all_ids_events(uint32	id)	//Tony18Dec96
{
	uint32	j;


	for	(j=0;j<MAX_events;j++)
		if	(event_list[j].id == id)	//us?
			event_list[j].id=0;	//clear the slot

	if (id);
}
//------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------