tibia-client/src/framework/graphics/particleaffector.cpp

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