/***************************************************************************
 *  Original Diku Mud copyright (C) 1990, 1991 by Sebastian Hammer,        *
 *  Michael Seifert, Hans Henrik St{rfeldt, Tom Madsen, and Katja Nyboe.   *
 *                                                                         *
 *  Merc Diku Mud improvments copyright (C) 1992, 1993 by Michael          *
 *  Chastain, Michael Quan, and Mitchell Tse.                              *
 *                                                                         *
 *  In order to use any part of this Merc Diku Mud, you must comply with   *
 *  both the original Diku license in 'license.doc' as well the Merc       *
 *  license in 'license.txt'.  In particular, you may not remove either of *
 *  these copyright notices.                                               *
 *                                                                         *
 *  Much time and thought has gone into this software and you are          *
 *  benefitting.  We hope that you share your changes too.  What goes      *
 *  around, comes around.                                                  *
 ***************************************************************************/

/***************************************************************************
 *	ROM 2.4 is copyright 1993-1995 Russ Taylor			   *
 *	ROM has been brought to you by the ROM consortium		   *
 *	    Russ Taylor (rtaylor@pacinfo.com)				   *
 *	    Gabrielle Taylor (gtaylor@pacinfo.com)			   *
 *	    Brian Moore (rom@rom.efn.org)				   *
 *	By using this code, you have agreed to follow the terms of the	   *
 *	ROM license, in the file Rom24/doc/rom.license			   *
 ***************************************************************************/

/*************************************************************************** 
 *       ROT 1.4 is copyright 1996-1997 by Russ Walsh                       *
 *       By using this code, you have agreed to follow the terms of the     *
 *       ROT license, in the file doc/rot.license                           *
 ***************************************************************************/

#if defined(macintosh)
#include <types.h>
#else
#include <sys/types.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "merc.h"
#include "recycle.h"

void acid_effect(void *vo, int level, int dam, int target)
{
	if (target == TARGET_ROOM) /* nail objects on the floor */
	{
		ROOM_INDEX_DATA *room = (ROOM_INDEX_DATA *) vo;
		OBJ_DATA *obj, *obj_next;

		for (obj = room->contents; obj != NULL; obj = obj_next)
		{
			obj_next = obj->next_content;
			acid_effect(obj, level, dam, TARGET_OBJ);
		}
		return;
	}

	if (target == TARGET_CHAR) /* do the effect on a victim */
	{
		CHAR_DATA *victim = (CHAR_DATA *) vo;
		OBJ_DATA *obj, *obj_next;

		/* let's toast some gear */
		for (obj = victim->carrying; obj != NULL; obj = obj_next)
		{
			obj_next = obj->next_content;
			acid_effect(obj, level, dam, TARGET_OBJ);
		}
		return;
	}

	if (target == TARGET_OBJ) /* toast an object */
	{
		OBJ_DATA *obj = (OBJ_DATA *) vo;
		OBJ_DATA *t_obj, *n_obj;
		int chance;
		char *msg;

		if (IS_OBJ_STAT(obj,ITEM_BURN_PROOF) || IS_OBJ_STAT(obj,ITEM_NOPURGE)
				|| number_range(0, 4) == 0)
			return;

		chance = level / 5 + dam / 10;

		if (chance > 25)
			chance = (chance - 25) / 2 + 25;
		if (chance > 50)
			chance = (chance - 50) / 2 + 50;

		if (IS_OBJ_STAT(obj,ITEM_BLESS))
			chance -= 8;

		chance -= obj->level * 2;

		switch (obj->item_type)
		{
		default:
			return;
	//	We're just going to do staff wand and scrolls. - Marduk
	//	case ITEM_CONTAINER:
	//	case ITEM_PIT:
	//	case ITEM_CORPSE_PC:
	//	case ITEM_CORPSE_NPC:
	//		msg = "$p fumes and dissolves.";
	//		break;
	//	case ITEM_ARMOR:
	//		msg = "$p is pitted and etched.";
	//		break;
	//	case ITEM_CLOTHING:
			msg = "$p is corroded into scrap.";
			break;
		case ITEM_STAFF:
		case ITEM_WAND:
			chance -= 10;
			msg = "$p corrodes and breaks.";
			break;
		case ITEM_SCROLL:
			chance += 10;
			msg = "$p is burned into waste.";
			break;
		}

		chance = URANGE(5,chance,95);

		if (number_percent() > chance)
			return;

		if (obj->carried_by != NULL)
			act(msg, obj->carried_by, obj, NULL, TO_ALL);
		else if (obj->in_room != NULL && obj->in_room->people != NULL)
			act(msg, obj->in_room->people, obj, NULL, TO_ALL);

//		if (obj->item_type == ITEM_ARMOR) /* etch it */
//		{
		/*
			AFFECT_DATA *paf;
			bool af_found = FALSE;
			int i;

			affect_enchant(obj);

			for (paf = obj->affected; paf != NULL; paf = paf->next)
			{
				if (paf->location == APPLY_AC)
				{
					af_found = TRUE;
					paf->type = -1;
					paf->modifier += 1;
					paf->level = UMAX(paf->level,level);
					break;
				}
			}

			if (!af_found)
			// needs a new affect
			{
				paf = new_affect();

				paf->type = -1;
				paf->level = level;
				paf->duration = -1;
				paf->location = APPLY_AC;
				paf->modifier = 1;
				paf->bitvector = 0;
				paf->next = obj->affected;
				obj->affected = paf;
			}

			if (obj->carried_by != NULL && obj->wear_loc != WEAR_NONE)
				for (i = 0; i < 4; i++)
					obj->carried_by->armor[i] += 1;
			return;
		*/
//		}

		/* get rid of the object */
		if (obj->contains) /* dump contents */
		{
			for (t_obj = obj->contains; t_obj != NULL; t_obj = n_obj)
			{
				n_obj = t_obj->next_content;
				obj_from_obj(t_obj);
				if (obj->in_room != NULL)
					obj_to_room(t_obj, obj->in_room);
				else if (obj->carried_by != NULL)
					obj_to_room(t_obj, obj->carried_by->in_room);
				else
				{
					extract_obj(t_obj);
					continue;
				}

				acid_effect(t_obj, level / 2, dam / 2, TARGET_OBJ);
			}
		}

		extract_obj(obj);
		return;
	}
}

void cold_effect(void *vo, int level, int dam, int target)
{
	if (target == TARGET_ROOM) /* nail objects on the floor */
	{
		ROOM_INDEX_DATA *room = (ROOM_INDEX_DATA *) vo;
		OBJ_DATA *obj, *obj_next;

		for (obj = room->contents; obj != NULL; obj = obj_next)
		{
			obj_next = obj->next_content;
			cold_effect(obj, level, dam, TARGET_OBJ);
		}
		return;
	}

	if (target == TARGET_CHAR) /* whack a character */
	{
		CHAR_DATA *victim = (CHAR_DATA *) vo;
		CHAR_DATA *ch;
		OBJ_DATA *obj, *obj_next;

		/* chill touch effect */
		if (!saves_spell(level / 5 + dam / 20, victim, DAM_COLD))
		{
			AFFECT_DATA af;

			if ((ch = victim->fighting) == NULL)
				return;

			if (is_affected(victim, skill_lookup("chill touch")))
				return;

			if (!IS_SET(ch->act,PLR_SHORT_COMBAT))
				act("$n turns blue and shivers.", victim, NULL, NULL, TO_ROOM);
			if (!IS_SET(victim->act,PLR_SHORT_COMBAT))
				act("A chill sinks deep into your bones.", victim, NULL, NULL,
						TO_CHAR);
			af.where = TO_AFFECTS;
			af.type = skill_lookup("chill touch");
			af.level = level;
			af.duration = 6;
			af.location = APPLY_DEX;
			af.modifier = -1 * (number_range(1, 15));
			af.bitvector = 0;
			affect_join(victim, &af);
		}

		/* hunger! (warmth sucked out */
		if (!IS_NPC(victim))
			gain_condition(victim, COND_HUNGER, dam / 20);

		/* let's toast some gear */
		for (obj = victim->carrying; obj != NULL; obj = obj_next)
		{
			obj_next = obj->next_content;
			cold_effect(obj, level, dam, TARGET_OBJ);
		}
		return;
	}

	if (target == TARGET_OBJ) /* toast an object */
	{
		OBJ_DATA *obj = (OBJ_DATA *) vo;
		int chance;
		char *msg;

		if (IS_OBJ_STAT(obj,ITEM_BURN_PROOF) || IS_OBJ_STAT(obj,ITEM_NOPURGE)
				|| number_range(0, 4) == 0)
			return;

		chance = level / 5 + dam / 10;

		if (chance > 25)
			chance = (chance - 25) / 2 + 25;
		if (chance > 50)
			chance = (chance - 50) / 2 + 50;

		if (IS_OBJ_STAT(obj,ITEM_BLESS))
			chance -= 8;

		chance -= obj->level * 2;

		switch (obj->item_type)
		{
		default:
			return;
		case ITEM_POTION:
			msg = "$p freezes and shatters!";
			chance += 25;
			break;
		case ITEM_DRINK_CON:
			msg = "$p freezes and shatters!";
			chance += 5;
			break;
		}

		chance = URANGE(5,chance,95);

		if (number_percent() > chance)
			return;

		if (obj->carried_by != NULL)
			act(msg, obj->carried_by, obj, NULL, TO_ALL);
		else if (obj->in_room != NULL && obj->in_room->people != NULL)
			act(msg, obj->in_room->people, obj, NULL, TO_ALL);

		extract_obj(obj);
		return;
	}
}

void fire_effect(void *vo, int level, int dam, int target)
{
	if (target == TARGET_ROOM) /* nail objects on the floor */
	{
		ROOM_INDEX_DATA *room = (ROOM_INDEX_DATA *) vo;
		OBJ_DATA *obj, *obj_next;

		for (obj = room->contents; obj != NULL; obj = obj_next)
		{
			obj_next = obj->next_content;
			fire_effect(obj, level, dam, TARGET_OBJ);
		}
		return;
	}

	if (target == TARGET_CHAR) /* do the effect on a victim */
	{
		CHAR_DATA *victim = (CHAR_DATA *) vo;
		OBJ_DATA *obj, *obj_next;

		if (!is_affected(victim, gsn_on_fire))
		{
			if (!saves_spell(level, victim, DAM_FIRE))
				if (number_percent() > 70)
				{
					AFFECT_DATA af;
					act("$n catches on fire!", victim, NULL, NULL, TO_ROOM);
					act("Your skin starts to burn hotly!", victim, NULL, NULL,
							TO_CHAR);

					af.where = TO_AFFECTS;
					af.type = gsn_on_fire;
					af.level = level;
					af.duration = number_range(0, victim->level / 10);
					af.location = APPLY_HITROLL;
					af.modifier = -4;
					af.bitvector = 0;

					affect_to_char(victim, &af);
				}
		}
		/* chance of blindness */
		else if (!IS_AFFECTED(victim,AFF_BLIND) && !saves_spell(level, victim,
				DAM_FIRE) && (number_range(1, 10) < 7))
		{
			AFFECT_DATA af;
			act("$n is blinded by smoke!", victim, NULL, NULL, TO_ROOM);
			act("Your eyes tear up from smoke...you can't see a thing!",
					victim, NULL, NULL, TO_CHAR);

			af.where = TO_AFFECTS;
			af.type = skill_lookup("fire breath");
			af.level = level;
			af.duration = number_range(0, victim->level / 10);
			af.location = APPLY_HITROLL;
			af.modifier = -4;
			af.bitvector = AFF_BLIND;

			affect_to_char(victim, &af);
		}

		/* getting thirsty */
		if (!IS_NPC(victim))
			gain_condition(victim, COND_THIRST, dam / 20);

		/* let's toast some gear! */
		for (obj = victim->carrying; obj != NULL; obj = obj_next)
		{
			obj_next = obj->next_content;

			fire_effect(obj, level, dam, TARGET_OBJ);
		}
		return;
	}

	if (target == TARGET_OBJ) /* toast an object */
	{
		OBJ_DATA *obj = (OBJ_DATA *) vo;
		OBJ_DATA *t_obj, *n_obj;
		int chance;
		char *msg;

		if (IS_OBJ_STAT(obj,ITEM_BURN_PROOF) || IS_OBJ_STAT(obj,ITEM_NOPURGE)
				|| number_range(0, 4) == 0)
			return;

		chance = level / 5 + dam / 15;

		if (chance > 25)
			chance = (chance - 25) / 2 + 25;
		if (chance > 50)
			chance = (chance - 50) / 2 + 50;

		if (IS_OBJ_STAT(obj,ITEM_BLESS))
			chance -= 8;
		chance -= obj->level * 2;

		switch (obj->item_type)
		{
		default:
			return;
		case ITEM_CONTAINER:
		case ITEM_PIT:
			msg = "$p ignites and burns!";
			break;
		case ITEM_POTION:
			chance += 25;
			msg = "$p bubbles and boils!";
			break;
		case ITEM_SCROLL:
			chance += 50;
			msg = "$p crackles and burns!";
			break;
		case ITEM_STAFF:
			chance += 10;
			msg = "$p smokes and chars!";
			break;
		case ITEM_WAND:
			msg = "$p sparks and sputters!";
			break;
		case ITEM_FOOD:
			msg = "$p blackens and crisps!";
			break;
		case ITEM_PILL:
			msg = "$p melts and drips!";
			break;
		}

		chance = URANGE(5,chance,95);

		if (number_percent() > chance)
			return;

		if (obj->carried_by != NULL)
			act(msg, obj->carried_by, obj, NULL, TO_ALL );
		else if (obj->in_room != NULL && obj->in_room->people != NULL)
			act(msg, obj->in_room->people, obj, NULL, TO_ALL);

		if (obj->contains)
		{
			/* dump the contents */

			for (t_obj = obj->contains; t_obj != NULL; t_obj = n_obj)
			{
				n_obj = t_obj->next_content;
				obj_from_obj(t_obj);
				if (obj->in_room != NULL)
					obj_to_room(t_obj, obj->in_room);
				else if (obj->carried_by != NULL)
					obj_to_room(t_obj, obj->carried_by->in_room);
				else
				{
					extract_obj(t_obj);
					continue;
				}
				fire_effect(t_obj, level / 2, dam / 2, TARGET_OBJ);
			}
		}

		extract_obj(obj);
		return;
	}
}

void poison_effect(void *vo, int level, int dam, int target)
{
	if (target == TARGET_ROOM) /* nail objects on the floor */
	{
		ROOM_INDEX_DATA *room = (ROOM_INDEX_DATA *) vo;
		OBJ_DATA *obj, *obj_next;

		for (obj = room->contents; obj != NULL; obj = obj_next)
		{
			obj_next = obj->next_content;
			poison_effect(obj, level, dam, TARGET_OBJ);
		}
		return;
	}

	if (target == TARGET_CHAR) /* do the effect on a victim */
	{
		CHAR_DATA *victim = (CHAR_DATA *) vo;
		OBJ_DATA *obj, *obj_next;

		/* chance of poisoning */
		if (!saves_spell(level / 8 + dam / 50, victim, DAM_POISON))
		{
			AFFECT_DATA af;

			send_to_char("You feel poison coursing through your veins.\n\r",
					victim);
			act("$n looks very ill.", victim, NULL, NULL, TO_ROOM);

			af.where = TO_AFFECTS;
			af.type = gsn_poison;
			af.level = level;
			af.duration = level / 2;
			af.location = APPLY_STR;
			af.modifier = -1 * number_range(2, 5);
			af.bitvector = AFF_POISON;
			affect_join(victim, &af);
		}

		/* equipment */
		for (obj = victim->carrying; obj != NULL; obj = obj_next)
		{
			obj_next = obj->next_content;
			poison_effect(obj, level, dam, TARGET_OBJ);
		}
		return;
	}

	if (target == TARGET_OBJ) /* do some poisoning */
	{
		OBJ_DATA *obj = (OBJ_DATA *) vo;
		int chance;

		if (IS_OBJ_STAT(obj,ITEM_BURN_PROOF) || IS_OBJ_STAT(obj,ITEM_BLESS)
				|| number_range(0, 4) == 0)
			return;

		chance = level / 10 + dam / 100;
		if (chance > 25)
			chance = (chance - 25) / 2 + 25;
		if (chance > 50)
			chance = (chance - 50) / 2 + 50;

		chance -= obj->level * 5;

		switch (obj->item_type)
		{
		default:
			return;
		case ITEM_FOOD:
			break;
		case ITEM_DRINK_CON:
			if (obj->value[0] == obj->value[1])
				return;
			break;
		}

		chance = URANGE(5,chance,95);

		if (number_percent() > chance)
			return;

		obj->value[3] = 1;
		return;
	}
}

void shock_effect(void *vo, int level, int dam, int target)
{
	if (target == TARGET_ROOM)
	{
		ROOM_INDEX_DATA *room = (ROOM_INDEX_DATA *) vo;
		OBJ_DATA *obj, *obj_next;

		for (obj = room->contents; obj != NULL; obj = obj_next)
		{
			obj_next = obj->next_content;
			shock_effect(obj, level, dam, TARGET_OBJ);
		}
		return;
	}

	if (target == TARGET_CHAR)
	{
		CHAR_DATA *victim = (CHAR_DATA *) vo;
		OBJ_DATA *obj, *obj_next;

		/* daze and confused? */
		if (number_range(1, 6) == number_range(1, 7))
		{
			send_to_char("Your muscles stop responding.\n\r", victim);
			act("$n's body goes stiff with paralysis!", victim, NULL, NULL,
					TO_ROOM);
			WAIT_STATE(victim,PULSE_VIOLENCE/3)
;		}

		/* toast some gear */
		for (obj = victim->carrying; obj != NULL; obj = obj_next)
		{
			obj_next = obj->next_content;
			shock_effect(obj,level,dam,TARGET_OBJ);
		}
		return;
	}

	if (target == TARGET_OBJ)
	{
		OBJ_DATA *obj = (OBJ_DATA *) vo;
		int chance;
		char *msg;

		if (IS_OBJ_STAT(obj,ITEM_BURN_PROOF)
				|| IS_OBJ_STAT(obj,ITEM_NOPURGE)
				|| number_range(0,4) == 0)
		return;

		chance = level / 4 + dam / 10;

		if (chance > 25)
		chance = (chance - 25) / 2 + 25;
		if (chance > 50)
		chance = (chance - 50) /2 + 50;

		chance -= obj->level * 2;

		if (IS_OBJ_STAT(obj,ITEM_BLESS))
		chance /= 8;

		switch(obj->item_type)
		{
			default:
			return;
			case ITEM_WAND:
			case ITEM_STAFF:
			chance += 10;
			msg = "$p overloads and explodes!";
			break;
			case ITEM_JEWELRY:
			chance -= 10;
			msg = "$p is fused into a worthless lump.";
		}

		chance = URANGE(1,chance,95);

		if (number_percent() > chance)
		return;

		if (obj->carried_by != NULL)
		act(msg,obj->carried_by,obj,NULL,TO_ALL);
		else if (obj->in_room != NULL && obj->in_room->people != NULL)
		act(msg,obj->in_room->people,obj,NULL,TO_ALL);

		extract_obj(obj);
		return;
	}
}