scummvm/engines/pegasus/chase.cpp
2021-12-26 18:48:43 +01:00

123 lines
3.5 KiB
C++

/* 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.
*
* Additional copyright for this file:
* Copyright (C) 1995-2013 Presto Studios, Inc.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "pegasus/chase.h"
namespace Pegasus {
// Notification constants.
static const NotificationFlags kChaseNotificationFlags = kChaseEnteredBranchZone |
kChaseExitedBranchZone |
kChaseFinished;
ChaseInteraction::ChaseInteraction(const InteractionID interactionID, Neighborhood *handler,
const NotificationID notificationID, NotificationManager *manager) : GameInteraction(interactionID, handler),
_chaseNotification(notificationID, manager), _steerPict(kNoDisplayElement), _directionNeeded(false),
_turnDirection(kNoTurn) {
// HACK HACK HACK HACK HACK
// TRIPLE SUPER ULTRA HACK
// This avoids a nasty optimization bug I have been unable to track down
// after days and days of searching. Let's just ship the game already.
setNextHandler(nullptr);
_neighborhoodNotification = handler->getNeighborhoodNotification();
}
void ChaseInteraction::openInteraction() {
_steerPict.initFromPICTFile("Images/Interface/steer.pict", true);
_chaseNotification.notifyMe(this, kChaseNotificationFlags, kChaseNotificationFlags);
_neighborhoodNotification->notifyMe(this, kDelayCompletedFlag | kSpotSoundCompletedFlag,
kDelayCompletedFlag | kSpotSoundCompletedFlag);
}
void ChaseInteraction::closeInteraction() {
_steerPict.hide();
_steerPict.deallocateSurface();
_chaseNotification.cancelNotification(this);
_neighborhoodNotification->cancelNotification(this);
}
void ChaseInteraction::receiveNotification(Notification *notification, const NotificationFlags flags) {
if (notification == &_chaseNotification)
switch (flags) {
case kChaseEnteredBranchZone:
_directionNeeded = true;
showControlsHint();
setUpBranch();
break;
case kChaseExitedBranchZone:
switch (_turnDirection) {
case kTurnLeft:
branchLeft();
break;
case kTurnRight:
branchRight();
break;
case kNoTurn:
dontBranch();
break;
default:
break;
}
hideControlsHint();
_turnDirection = kNoTurn;
_directionNeeded = false;
break;
case kChaseFinished:
_owner->requestDeleteCurrentInteraction();
break;
default:
break;
}
}
void ChaseInteraction::handleInput(const Input &input, const Hotspot *cursorSpot) {
if (input.anyDirectionInput()) {
if (_directionNeeded) {
if (input.leftButtonAnyDown())
_turnDirection = kTurnLeft;
else if (input.rightButtonAnyDown())
_turnDirection = kTurnRight;
}
} else {
this->InputHandler::handleInput(input, cursorSpot);
}
}
void ChaseInteraction::showControlsHint() {
_steerPict.show();
}
void ChaseInteraction::hideControlsHint() {
_steerPict.hide();
}
} // End of namespace Pegasus