137 lines
4.6 KiB
C++
137 lines
4.6 KiB
C++
/*
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* Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "particle.h"
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#include "particleaffector.h"
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#include <framework/core/clock.h>
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ParticleAffector::ParticleAffector()
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{
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m_active = false;
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m_finished = false;
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m_delay = 0;
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m_duration = 0;
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m_elapsedTime = 0;
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}
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void ParticleAffector::update(float elapsedTime)
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{
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if(m_duration >= 0 && m_elapsedTime >= m_duration + m_delay) {
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m_finished = true;
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return;
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}
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if(!m_active && m_elapsedTime > m_delay)
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m_active = true;
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m_elapsedTime += elapsedTime;
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}
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void ParticleAffector::load(const OTMLNodePtr& node)
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{
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float minDelay = 0, maxDelay = 0;
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float minDuration = -1, maxDuration = -1;
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for(const OTMLNodePtr& childNode : node->children()) {
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if(childNode->tag() == "delay") {
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minDelay = childNode->value<float>();
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maxDelay = childNode->value<float>();
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} else if(childNode->tag() == "min-delay")
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minDelay = childNode->value<float>();
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else if(childNode->tag() == "max-delay")
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maxDelay = childNode->value<float>();
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else if(childNode->tag() == "duration") {
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minDuration = childNode->value<float>();
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maxDuration = childNode->value<float>();
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} else if(childNode->tag() == "min-duration")
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minDuration = childNode->value<float>();
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else if(childNode->tag() == "max-duration")
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maxDuration = childNode->value<float>();
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}
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m_delay = stdext::random_range(minDelay, maxDelay);
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m_duration = stdext::random_range(minDuration, maxDuration);
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}
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void GravityAffector::load(const OTMLNodePtr& node)
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{
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ParticleAffector::load(node);
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m_angle = 270 * DEG_TO_RAD;
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m_gravity = 9.8;
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for(const OTMLNodePtr& childNode : node->children()) {
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if(childNode->tag() == "angle")
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m_angle = childNode->value<float>() * DEG_TO_RAD;
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else if(childNode->tag() == "gravity")
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m_gravity = childNode->value<float>();
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}
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}
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void GravityAffector::updateParticle(const ParticlePtr& particle, float elapsedTime)
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{
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if(!m_active)
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return;
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PointF velocity = particle->getVelocity();
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velocity += PointF(m_gravity * elapsedTime * std::cos(m_angle), m_gravity * elapsedTime * std::sin(m_angle));
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particle->setVelocity(velocity);
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}
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void AttractionAffector::load(const OTMLNodePtr& node)
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{
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ParticleAffector::load(node);
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m_acceleration = 32;
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m_reduction = 0;
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m_repelish = false;
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for(const OTMLNodePtr& childNode : node->children()) {
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if(childNode->tag() == "position")
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m_position = childNode->value<Point>();
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else if(childNode->tag() == "acceleration")
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m_acceleration = childNode->value<float>();
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else if(childNode->tag() == "velocity-reduction-percent")
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m_reduction = childNode->value<float>();
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else if(childNode->tag() == "repelish")
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m_repelish = childNode->value<bool>();
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}
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}
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void AttractionAffector::updateParticle(const ParticlePtr& particle, float elapsedTime)
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{
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if(!m_active)
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return;
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PointF pPosition = particle->getPosition();
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PointF d = PointF(m_position.x - pPosition.x, pPosition.y - m_position.y);
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if(d.length() == 0)
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return;
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PointF direction = PointF(1, 1);
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if(m_repelish)
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direction = PointF(-1, -1);
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PointF pVelocity = particle->getVelocity() + (d / d.length() * m_acceleration * elapsedTime) * direction;
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particle->setVelocity(pVelocity - pVelocity * m_reduction/100.0 * elapsedTime);
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}
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