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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 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 "engines/nancy/misc/mousefollow.h"
#include "engines/nancy/enginedata.h"
#include "engines/nancy/nancy.h"
#include "engines/nancy/graphics.h"
namespace Nancy {
namespace Misc {
MouseFollowObject::MouseFollowObject()
: RenderObject(8) {
_viewportData = GetEngineData(VIEW);
}
void MouseFollowObject::handleInput(NancyInput &input) {
Common::Point mousePos = input.mousePos;
Common::Rect viewport = _viewportData->screenPosition;
if (!_isPickedUp || !viewport.contains(mousePos)) {
return;
}
mousePos.x -= viewport.left;
mousePos.y -= viewport.top;
// Move the tile under the cursor
Common::Rect newScreenPos = _drawSurface.getBounds();
newScreenPos.moveTo(mousePos);
newScreenPos.translate(-newScreenPos.width() / 2, -newScreenPos.height() / 2);
// Clip movement so the ring stays entirely inside the viewport
if (newScreenPos.left < 0) {
newScreenPos.translate(-newScreenPos.left, 0);
} else if (newScreenPos.right > viewport.width()) {
newScreenPos.translate(viewport.width() - newScreenPos.right, 0);
}
if (newScreenPos.top < 0) {
newScreenPos.translate(0, -newScreenPos.top);
} else if (newScreenPos.bottom > viewport.height()) {
newScreenPos.translate(0, viewport.height() - newScreenPos.bottom);
}
if (newScreenPos != _screenPosition) {
moveTo(newScreenPos);
}
}
} // End of namespace Misc
} // End of namespace Nancy
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