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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "bbvs/bbvs.h"
#include "bbvs/gamemodule.h"
namespace Bbvs {
bool BbvsEngine::evalCondition(Conditions &conditions) {
bool result = true;
for (int i = 0; i < 8 && result; ++i) {
const Condition &condition = conditions.conditions[i];
switch (condition.cond) {
case kCondSceneObjectVerb:
result = _activeItemType == KITSceneObject &&
condition.value1 == _currVerbNum &&
condition.value2 == _activeItemIndex;
break;
case kCondBgObjectVerb:
result = _activeItemType == kITBgObject &&
condition.value1 == _currVerbNum &&
condition.value2 == _activeItemIndex;
break;
case kCondSceneObjectInventory:
result = _activeItemType == KITSceneObject &&
_currVerbNum == kVerbInvItem &&
condition.value1 == _currInventoryItem &&
condition.value2 == _activeItemIndex;
break;
case kCondBgObjectInventory:
result = _activeItemType == kITBgObject &&
_currVerbNum == kVerbInvItem &&
condition.value1 == _currInventoryItem &&
condition.value2 == _activeItemIndex;
break;
case kCondHasInventoryItem:
result = _inventoryItemStatus[condition.value1] != 0;
break;
case kCondHasNotInventoryItem:
result = _inventoryItemStatus[condition.value1] == 0;
break;
case kCondIsGameVar:
result = _gameVars[condition.value2] != 0;
break;
case kCondIsNotGameVar:
result = _gameVars[condition.value2] == 0;
break;
case kCondIsPrevSceneNum:
result = condition.value2 == _prevSceneNum;
break;
case kCondIsCurrTalkObject:
result = condition.value2 == _currTalkObjectIndex;
break;
case kCondIsDialogItem:
result = _activeItemType == kITDialog &&
condition.value1 == _activeItemIndex;
break;
case kCondIsCameraNum:
result = condition.value1 == _currCameraNum;
break;
case kCondIsNotPrevSceneNum:
result = condition.value2 != _prevSceneNum;
break;
case kCondIsButtheadAtBgObject:
result = _buttheadObject &&
_gameModule->getBgObject(condition.value2)->rect.contains(_buttheadObject->x >> 16, _buttheadObject->y >> 16);
break;
case kCondIsNotSceneVisited:
result = _sceneVisited[_currSceneNum] == 0;
break;
case kCondIsSceneVisited:
result = _sceneVisited[_currSceneNum] != 0;
break;
case kCondUnused:
case kCondDialogItem0:
case kCondIsCameraNumTransition:
result = false;
break;
}
}
return result;
}
bool BbvsEngine::evalCameraCondition(Conditions &conditions, int value) {
bool result = true;
for (int i = 0; i < 8 && result; ++i) {
const Condition &condition = conditions.conditions[i];
switch (condition.cond) {
case kCondHasInventoryItem:
result = _inventoryItemStatus[condition.value1] != 0;
break;
case kCondHasNotInventoryItem:
result = _inventoryItemStatus[condition.value1] == 0;
break;
case kCondIsGameVar:
result = _gameVars[condition.value2] != 0;
break;
case kCondIsNotGameVar:
result = _gameVars[condition.value2] == 0;
break;
case kCondIsPrevSceneNum:
result = condition.value2 == _prevSceneNum;
break;
case kCondIsNotPrevSceneNum:
result = condition.value2 != _prevSceneNum;
break;
case kCondIsNotSceneVisited:
result = _sceneVisited[_currSceneNum] == 0;
break;
case kCondIsSceneVisited:
result = _sceneVisited[_currSceneNum] != 0;
break;
case kCondIsCameraNumTransition:
result = condition.value1 == _currCameraNum &&
condition.value2 == value;
break;
case kCondUnused:
case kCondSceneObjectVerb:
case kCondBgObjectVerb:
case kCondSceneObjectInventory:
case kCondBgObjectInventory:
case kCondIsCurrTalkObject:
case kCondIsDialogItem:
case kCondIsCameraNum:
case kCondDialogItem0:
case kCondIsButtheadAtBgObject:
result = false;
break;
default:
break;
}
}
return result;
}
int BbvsEngine::evalDialogCondition(Conditions &conditions) {
int result = -1;
bool success = false;
for (int i = 0; i < 8; ++i) {
const Condition &condition = conditions.conditions[i];
switch (condition.cond) {
case kCondSceneObjectVerb:
success = _activeItemType == KITSceneObject &&
condition.value1 == _currVerbNum &&
condition.value2 == _activeItemIndex;
break;
case kCondBgObjectVerb:
success = _activeItemType == kITBgObject &&
condition.value1 == _currVerbNum &&
condition.value2 == _activeItemIndex;
break;
case kCondSceneObjectInventory:
success = _activeItemType == KITSceneObject &&
_currVerbNum == kVerbInvItem &&
condition.value1 == _currInventoryItem &&
condition.value2 == _activeItemIndex;
break;
case kCondBgObjectInventory:
success = _activeItemType == kITBgObject &&
_currVerbNum == kVerbInvItem &&
condition.value1 == _currInventoryItem &&
condition.value2 == _activeItemIndex;
break;
case kCondHasInventoryItem:
success = _inventoryItemStatus[condition.value1] != 0;
break;
case kCondHasNotInventoryItem:
success = _inventoryItemStatus[condition.value1] == 0;
break;
case kCondIsGameVar:
success = _gameVars[condition.value2] != 0;
break;
case kCondIsNotGameVar:
success = _gameVars[condition.value2] == 0;
break;
case kCondIsPrevSceneNum:
success = condition.value2 == _prevSceneNum;
break;
case kCondIsCurrTalkObject:
success = condition.value2 == _currTalkObjectIndex;
break;
case kCondIsDialogItem:
result = condition.value1;
break;
case kCondIsCameraNum:
success = condition.value1 == _currCameraNum;
break;
case kCondIsNotPrevSceneNum:
success = condition.value2 != _prevSceneNum;
break;
case kCondIsButtheadAtBgObject:
success = _buttheadObject &&
_gameModule->getBgObject(condition.value2)->rect.contains(_buttheadObject->x >> 16, _buttheadObject->y >> 16);
break;
case kCondIsNotSceneVisited:
success = _sceneVisited[_currSceneNum] == 0;
break;
case kCondIsSceneVisited:
success = _sceneVisited[_currSceneNum] != 0;
break;
case kCondDialogItem0:
return 0;
case kCondUnused:
case kCondIsCameraNumTransition:
success = false;
break;
}
if (!success)
return -1;
}
return result;
}
void BbvsEngine::evalActionResults(ActionResults &results) {
for (int i = 0; i < 8; ++i) {
const ActionResult &result = results.actionResults[i];
switch (result.kind) {
case kActResAddInventoryItem:
_inventoryItemStatus[result.value1] = 1;
_currVerbNum = kVerbInvItem;
_currInventoryItem = result.value1;
break;
case kActResRemoveInventoryItem:
_inventoryItemStatus[result.value1] = 0;
if (result.value1 == _currInventoryItem)
_currInventoryItem = -1;
if (_currVerbNum == kVerbInvItem)
_currVerbNum = kVerbLook;
break;
case kActResSetGameVar:
_gameVars[result.value2] = 1;
break;
case kActResUnsetGameVar:
_gameVars[result.value2] = 0;
break;
case kActResStartDialog:
_gameState = kGSDialog;
break;
case kActResChangeScene:
_newSceneNum = result.value2;
break;
}
}
}
} // End of namespace Bbvs
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