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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003 The ScummVM project
*
* 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 "stdafx.h"
#include "queen/state.h"
namespace Queen {
Direction State::findDirection(uint16 state) {
// queen.c l.4014-4021
static const Direction sd[] = {
DIR_BACK,
DIR_RIGHT,
DIR_LEFT,
DIR_FRONT
};
return sd[(state >> 2) & 3];
}
StateTalk State::findTalk(uint16 state) {
return (state & (1 << 9)) ? STATE_TALK_TALK : STATE_TALK_MUTE;
}
StateGrab State::findGrab(uint16 state) {
// queen.c l.4022-4029
static const StateGrab gd[] = {
STATE_GRAB_NONE,
STATE_GRAB_DOWN,
STATE_GRAB_UP,
STATE_GRAB_MID
};
return gd[state & 3];
}
StateOn State::findOn(uint16 state) {
return (state & (1 << 8)) ? STATE_ON_ON : STATE_ON_OFF;
}
Verb State::findDefaultVerb(uint16 state) {
Verb v;
switch((state >> 4) & 0xF) {
case 1:
v = Verb(VERB_OPEN);
break;
case 3:
v = Verb(VERB_CLOSE);
break;
case 7:
v = Verb(VERB_MOVE);
break;
case 8:
v = Verb(VERB_GIVE);
break;
case 12:
v = Verb(VERB_USE);
break;
case 14:
v = Verb(VERB_PICK_UP);
break;
case 9:
v = Verb(VERB_TALK_TO);
break;
case 6:
v = Verb(VERB_LOOK_AT);
break;
default:
v = Verb(VERB_NONE);
break;
}
return v;
}
StateUse State::findUse(uint16 state) {
return (state & (1 << 10)) ? STATE_USE : STATE_USE_ON;
}
void State::alterOn(uint16 *objState, StateOn state) {
switch (state) {
case STATE_ON_ON:
*objState |= (1 << 8);
break;
case STATE_ON_OFF:
*objState &= ~(1 << 8);
break;
}
}
void State::alterDefaultVerb(uint16 *objState, Verb v) {
uint16 val;
switch (v.value()) {
case VERB_OPEN:
val = 1;
break;
case VERB_CLOSE:
val = 3;
break;
case VERB_MOVE:
val = 7;
break;
case VERB_GIVE:
val = 8;
break;
case VERB_USE:
val = 12;
break;
case VERB_PICK_UP:
val = 14;
break;
case VERB_TALK_TO:
val = 9;
break;
case VERB_LOOK_AT:
val = 6;
break;
default:
val = 0;
break;
}
*objState = (*objState & ~0xF0) | (val << 4);
}
} // End of namespace Queen
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