diff options
Diffstat (limited to 'engines/zvision/scripting/effects/distort_effect.cpp')
| -rw-r--r-- | engines/zvision/scripting/effects/distort_effect.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/engines/zvision/scripting/effects/distort_effect.cpp b/engines/zvision/scripting/effects/distort_effect.cpp new file mode 100644 index 0000000000..113b5d048d --- /dev/null +++ b/engines/zvision/scripting/effects/distort_effect.cpp @@ -0,0 +1,104 @@ +/* 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 "common/scummsys.h" + +#include "zvision/scripting/effects/distort_effect.h" + +#include "zvision/zvision.h" +#include "zvision/scripting/script_manager.h" +#include "zvision/graphics/render_manager.h" +#include "zvision/graphics/render_table.h" + +#include "common/stream.h" + +namespace ZVision { + +DistortNode::DistortNode(ZVision *engine, uint32 key, int16 speed, float startAngle, float endAngle, float startLineScale, float endLineScale) + : ScriptingEffect(engine, key, SCRIPTING_EFFECT_DISTORT) { + + _angle = _engine->getRenderManager()->getRenderTable()->getAngle(); + _linScale = _engine->getRenderManager()->getRenderTable()->getLinscale(); + + _speed = speed; + _incr = true; + _startAngle = startAngle; + _endAngle = endAngle; + _startLineScale = startLineScale; + _endLineScale = endLineScale; + + _curFrame = 1.0; + + _diffAngle = endAngle - startAngle; + _diffLinScale = endLineScale - startLineScale; + + _frmSpeed = (float)speed / 15.0; + _frames = (int)ceil((5.0 - _frmSpeed * 2.0) / _frmSpeed); + if (_frames <= 0) + _frames = 1; + + if (_key != StateKey_NotSet) + _engine->getScriptManager()->setStateValue(_key, 1); +} + +DistortNode::~DistortNode() { + setParams(_angle, _linScale); +} + +bool DistortNode::process(uint32 deltaTimeInMillis) { + float updTime = deltaTimeInMillis / (1000.0 / 60.0); + + if (_incr) + _curFrame += updTime; + else + _curFrame -= updTime; + + if (_curFrame < 1.0) { + _curFrame = 1.0; + _incr = true; + } else if (_curFrame > _frames) { + _curFrame = _frames; + _incr = false; + } + + float diff = (1.0 / (5.0 - (_curFrame * _frmSpeed))) / (5.0 - _frmSpeed); + setParams(_startAngle + diff * _diffAngle, _startLineScale + diff * _diffLinScale); + + return false; +} + +void DistortNode::setParams(float angl, float linScale) { + RenderTable *table = _engine->getRenderManager()->getRenderTable(); + if (table->getRenderState() == RenderTable::PANORAMA) { + table->setPanoramaFoV(angl); + table->setPanoramaScale(linScale); + table->generateRenderTable(); + _engine->getRenderManager()->markDirty(); + } else if (table->getRenderState() == RenderTable::TILT) { + table->setTiltFoV(angl); + table->setTiltScale(linScale); + table->generateRenderTable(); + _engine->getRenderManager()->markDirty(); + } +} + +} // End of namespace ZVision |