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src/action/action_spellcast.cpp
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168
src/action/action_spellcast.cpp
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// ___________ _________ _____ __
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// \_ _____/______ ____ ____ \_ ___ \____________ _/ ____\/ |_
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// | __) \_ __ \_/ __ \_/ __ \/ \ \/\_ __ \__ \\ __\\ __\
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// | \ | | \/\ ___/\ ___/\ \____| | \// __ \| | | |
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// \___ / |__| \___ >\___ >\______ /|__| (____ /__| |__|
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// \/ \/ \/ \/ \/
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// ______________________ ______________________
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// T H E W A R B E G I N S
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// FreeCraft - A free fantasy real time strategy game engine
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//
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/**@name action_spellcast.c - The spell cast action. */
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/*
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** (c) Copyright 1998-2000 by Vladi Belperchinov-Shabanski
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**
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** $Id$
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*/
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/*
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** This is inherited from action_attack.c, actually spell casting will
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** be considered a `special' case attack action... //Vladi
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*/
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//@{
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/*----------------------------------------------------------------------------
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-- Includes
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----------------------------------------------------------------------------*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "freecraft.h"
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#include "video.h"
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#include "sound_id.h"
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#include "unitsound.h"
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#include "unittype.h"
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#include "player.h"
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#include "unit.h"
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#include "missile.h"
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#include "actions.h"
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#include "sound.h"
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#include "tileset.h"
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#include "map.h"
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#include "spells.h"
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/*----------------------------------------------------------------------------
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-- Functions
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----------------------------------------------------------------------------*/
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/**
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** Animate unit spell cast (it is attack really)!
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**
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** @param unit Unit, for that the spell cast/attack animation is played.
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*/
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global int AnimateActionSpellCast(Unit* unit)
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{
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int flags;
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flags=UnitShowAnimation(unit,unit->Type->Animations->Attack);
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if( unit->Type->Animations ) {
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DebugCheck( !unit->Type->Animations->Attack );
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if( (flags & AnimationSound) )
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PlayUnitSound(unit,VoiceAttacking); // FIXME: ?????
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if( flags & AnimationMissile ) // FIXME: ?????
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FireMissile(unit); /* we should not get here ?? */
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}
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return 0;
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}
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/**
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** Handle moving to the target.
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**
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** @param unit Unit, for that the spell cast is handled.
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*/
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local void MoveToTarget(Unit* unit)
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{
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Unit* goal;
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int err;
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err = HandleActionMove(unit);
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if ( !unit->Reset ) return;
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// when reached HandleActionMove changes unit action
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unit->Command.Action = UnitActionSpellCast;
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goal = unit->Command.Data.Move.Goal;
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if( goal && MapDistanceToUnit(unit->X,unit->Y,goal)
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<= unit->Command.Data.Move.Range )
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{ // there is goal and it is in range
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unit->State=0;
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UnitHeadingFromDeltaXY(unit,goal->X - unit->X,
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goal->Y - unit->Y);
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unit->SubAction = 1; // cast the spell
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return;
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} else
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if( !goal && MapDistance(unit->X,unit->Y,
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unit->Command.Data.Move.DX,unit->Command.Data.Move.DY)
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<= unit->Command.Data.Move.Range )
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{ // there is no goal and target spot is in range
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unit->State=0;
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UnitHeadingFromDeltaXY(unit,
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unit->Command.Data.Move.DX - unit->X,
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unit->Command.Data.Move.DY - unit->Y);
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unit->SubAction = 1; // cast the spell
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return;
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} else
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if( err )
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{ // goal/spot out of range -- move to target
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// FIXME: Should handle new return codes (err) here (for Fabrice)
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unit->State=0;
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unit->SubAction=0;
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}
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DebugCheck( unit->Type->Vanishes || unit->Destroyed );
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}
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/**
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** Unit casts a spell!
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**
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** @param unit Unit, for that the spell cast is handled.
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*/
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global void HandleActionSpellCast(Unit* unit)
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{
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int repeat = 0; // repeat spell on next pass? (defaults to `no')
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DebugLevel3(__FUNCTION__": SpellCast %Zd\n",UnitNumber(unit));
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switch( unit->SubAction ) {
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case 0: // Move to the target.
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MoveToTarget(unit);
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break;
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case 1: // Cast spell on the target.
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{
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const SpellType* spell = SpellTypeById( unit->Command.Data.Move.SpellId );
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if ( unit->Mana < spell->ManaCost )
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{
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SetMessage( "%s: not enough mana to cast spell: %s",
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unit->Type->Name, spell->Ident );
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repeat = 0;
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}
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else
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{
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UnitShowAnimation(unit,unit->Type->Animations->Attack);
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if ( !unit->Reset ) return;
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repeat = SpellCast(unit->Command.Data.Move.SpellId,
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unit,
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unit->Command.Data.Move.Goal,
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unit->Command.Data.Move.DX,
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unit->Command.Data.Move.DY );
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}
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if ( !repeat ) {
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unit->Command.Action=UnitActionStill;
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unit->SubAction=0;
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unit->State=0;
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if ( unit->Command.Data.Move.Goal )
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unit->Command.Data.Move.Goal->Refs--;
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}
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}
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break;
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default:
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unit->SubAction = 0; // Move to the target
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}
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}
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//@}
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