scummvm/engines/tetraedge/te/te_marker.cpp
2023-04-30 09:54:30 +09:00

65 lines
2.4 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.
*
* 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 "tetraedge/te/te_marker.h"
namespace Tetraedge {
TeMarker::TeMarker() : _visible(true), _isActive(false), _zLoc(0) {
}
void TeMarker::active(bool val) {
_isActive = val;
_button.setVisible(_visible && val);
}
void TeMarker::update(TeCamera &camera) {
_button.setVisible(true);
if (!_visible)
return;
const TeVector3f32 transformLoc = camera.projectPoint3f32(_loc);
const TeVector3f32 btnSize = _button.size();
_button.setPositionType(TeILayout::ABSOLUTE);
float vpWidth = camera.getViewportWidth();
float vpHeight = camera.getViewportHeight();
if (transformLoc.z() < 1.0f) {
// Behind the camera, move off-screen.
_button.setPosition(TeVector3f32(-btnSize.x() - vpWidth / 2, -btnSize.y() - vpHeight / 2, _zLoc));
} else {
TeVector3f32 buttonMiddle(transformLoc.x() - btnSize.x() / 2 - vpWidth / 2, transformLoc.y() - btnSize.y() / 2 - vpHeight / 2, _zLoc);
// Note: device rotation is taken account of here in original, skip that.
// Original also uses scales 480 and 320, but that makes it too small
// in HD.
//TeVector3f32 newScale(480.0f / vpWidth, 320.0f / vpHeight, 1.0);
//_button.setScale(newScale);
_button.setPosition(TeVector3f32(buttonMiddle.x(), buttonMiddle.y(), buttonMiddle.z()));
/*debug("Updated button pos to %s (transformed %s middle %s)", _button.position().dump().c_str(), transformLoc.dump().c_str(), buttonMiddle.dump().c_str());*/
}
}
void TeMarker::visible(bool vis) {
_visible = vis;
bool buttonVis = (vis && _isActive);
_button.setVisible(buttonVis);
}
} // end namespace Tetraedge