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https://github.com/scummvm/scummvm.git
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103 lines
3 KiB
C++
103 lines
3 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "common/scummsys.h"
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#include "zvision/scripting/effects/distort_effect.h"
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#include "zvision/zvision.h"
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#include "zvision/scripting/script_manager.h"
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#include "zvision/graphics/render_manager.h"
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#include "zvision/graphics/render_table.h"
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#include "common/stream.h"
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namespace ZVision {
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DistortNode::DistortNode(ZVision *engine, uint32 key, int16 speed, float startAngle, float endAngle, float startLineScale, float endLineScale)
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: ScriptingEffect(engine, key, SCRIPTING_EFFECT_DISTORT) {
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_angle = _engine->getRenderManager()->getRenderTable()->getAngle();
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_linScale = _engine->getRenderManager()->getRenderTable()->getLinscale();
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_speed = speed;
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_incr = true;
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_startAngle = startAngle;
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_endAngle = endAngle;
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_startLineScale = startLineScale;
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_endLineScale = endLineScale;
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_curFrame = 1.0;
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_diffAngle = endAngle - startAngle;
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_diffLinScale = endLineScale - startLineScale;
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_frmSpeed = (float)speed / 15.0;
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_frames = (int)ceil((5.0 - _frmSpeed * 2.0) / _frmSpeed);
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if (_frames <= 0)
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_frames = 1;
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if (_key != StateKey_NotSet)
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_engine->getScriptManager()->setStateValue(_key, 1);
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}
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DistortNode::~DistortNode() {
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setParams(_angle, _linScale);
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}
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bool DistortNode::process(uint32 deltaTimeInMillis) {
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float updTime = deltaTimeInMillis / (1000.0 / 60.0);
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if (_incr)
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_curFrame += updTime;
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else
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_curFrame -= updTime;
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if (_curFrame < 1.0) {
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_curFrame = 1.0;
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_incr = true;
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} else if (_curFrame > _frames) {
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_curFrame = _frames;
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_incr = false;
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}
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float diff = (1.0 / (5.0 - (_curFrame * _frmSpeed))) / (5.0 - _frmSpeed);
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setParams(_startAngle + diff * _diffAngle, _startLineScale + diff * _diffLinScale);
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return false;
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}
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void DistortNode::setParams(float angl, float linScale) {
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RenderTable *table = _engine->getRenderManager()->getRenderTable();
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if (table->getRenderState() == RenderTable::PANORAMA) {
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table->setPanoramaFoV(angl);
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table->setPanoramaScale(linScale);
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table->generateRenderTable();
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_engine->getRenderManager()->markDirty();
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} else if (table->getRenderState() == RenderTable::TILT) {
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table->setTiltFoV(angl);
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table->setTiltScale(linScale);
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table->generateRenderTable();
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_engine->getRenderManager()->markDirty();
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}
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}
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} // End of namespace ZVision
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