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@ -26,24 +26,23 @@
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#include <framework/graphics/texturemanager.h>
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#include <framework/util/tools.h>
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Particle::Particle(const Rect& rect, float vx, float vy, float ax, float ay, float duration, const Color& color, TexturePtr texture)
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#define DEG_TO_RAD (acos(-1)/180.0)
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Particle::Particle(const Point& pos, const Size& size, const PointF& velocity, const PointF& acceleration, float duration, const Color& color, TexturePtr texture)
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{
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m_rect = rect;
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m_ix = rect.x(); m_iy = rect.y();
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m_vx = vx; m_vy = vy;
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m_ax = ax; m_ay = ay;
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m_rect = Rect(pos, size);
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m_pos = PointF(pos.x, pos.y);
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m_size = size;
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m_velocity = velocity;
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m_acceleration = acceleration;
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m_color = color;
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m_texture = texture;
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m_duration = duration;
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m_startTicks = g_clock.ticks();
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m_startTime = g_clock.time();
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m_lastUpdateTime = g_clock.time();
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m_finished = false;
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}
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Particle::~Particle()
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{
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//dump << "deleted";
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}
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void Particle::render()
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{
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g_painter.setColor(m_color);
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@ -59,17 +58,24 @@ void Particle::render()
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void Particle::update()
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{
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ticks_t t = g_clock.ticks() - m_startTicks;
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float elapsedTime = g_clock.timeElapsed(m_lastUpdateTime);
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m_lastUpdateTime = g_clock.time();
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// check if finished
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if(m_duration >= 0 && t > m_duration * 1000) {
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if(m_duration > 0 && g_clock.timeElapsed(m_startTime) >= m_duration) {
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m_finished = true;
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return;
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}
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//update position
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m_rect.moveTo(m_ix + (m_vx * t / 1000.0) + (m_ax * t*t / (2.0 * 1000 * 1000)),
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m_iy + (m_vy * t / 1000.0) + (m_ay * t*t / (2.0 * 1000 * 1000)));
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// update position
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PointF delta = m_velocity * elapsedTime;
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delta.y *= -1; // painter orientate Y axis in the inverse direction
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m_pos += delta;
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// update acceleration
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m_velocity += m_acceleration * elapsedTime;
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m_rect.moveTo((int)m_pos.x, (int)m_pos.y);
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}
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ParticleEmitter::ParticleEmitter()
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@ -78,44 +84,41 @@ ParticleEmitter::ParticleEmitter()
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m_duration = -1;
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m_burstRate = 1; m_burstCount = 32;
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m_currentBurst = 0;
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m_startTicks = g_clock.ticks();
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m_startTime = g_clock.time();
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m_finished = false;
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// particles default configuration. (make them reasonable for user detect missing properties on scripts)
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m_pMinPositionRadius = 0; m_pMaxPositionRadius = 3;
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m_pMinPositionAngle = -Fw::pi; m_pMaxPositionAngle = Fw::pi;
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m_pMinSize = Size(32, 32); m_pMaxSize = Size(32, 32);
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m_pMinDuration = 0; m_pMaxDuration = 10;
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m_pMinVelocity = 32; m_pMaxVelocity = 64;
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m_pMinVelocityAngle = -Fw::pi; m_pMaxVelocityAngle = Fw::pi;
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m_pMinAcceleration = 32; m_pMaxAcceleration = 64;
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m_pMinAccelerationAngle = -Fw::pi; m_pMaxAccelerationAngle = Fw::pi;
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m_pColor = Color(255, 0, 0, 128);
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m_pTexture = nullptr;
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m_pMinPositionRadius = 0;
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m_pMaxPositionRadius = 3;
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m_pMinPositionAngle = 0;
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m_pMaxPositionAngle = 360;
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m_pMinSize = Size(32, 32);
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m_pMaxSize = Size(32, 32);
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m_pMinDuration = 0;
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m_pMaxDuration = 10;
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m_pMinVelocity = 32;
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m_pMaxVelocity = 64;
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m_pMinVelocityAngle = 0;
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m_pMaxVelocityAngle = 360;
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m_pMinAcceleration = 32;
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m_pMaxAcceleration = 64;
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m_pMinAccelerationAngle = 0;
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m_pMaxAccelerationAngle = 360;
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m_pColor = Color(255, 255, 255, 128);
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}
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bool ParticleEmitter::load(const OTMLNodePtr& node)
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{
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for(const OTMLNodePtr& childNode : node->children()) {
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// self related
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if(childNode->tag() == "position") {
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std::string value = childNode->value();
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std::vector<std::string> split;
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boost::split(split, value, boost::is_any_of(std::string(" ")));
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if(split.size() == 2)
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m_position = Point(Fw::safeCast<int>(split[0]), Fw::safeCast<int>(split[1]));
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}
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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() == "duration")
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m_duration = childNode->value<float>();
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else if(childNode->tag() == "burstRate")
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m_burstRate = childNode->value<float>();
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else if(childNode->tag() == "burstCount")
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m_burstCount = childNode->value<int>();
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// particles generation related
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else if(childNode->tag() == "particle-position-radius") {
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m_pMinPositionRadius = childNode->value<float>();
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@ -125,15 +128,14 @@ bool ParticleEmitter::load(const OTMLNodePtr& node)
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m_pMinPositionRadius = childNode->value<float>();
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else if(childNode->tag() == "particle-max-position-radius")
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m_pMaxPositionRadius = childNode->value<float>();
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else if(childNode->tag() == "particle-position-angle") {
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m_pMinPositionAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMaxPositionAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMinPositionAngle = childNode->value<float>() * DEG_TO_RAD;
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m_pMaxPositionAngle = childNode->value<float>() * DEG_TO_RAD;
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}
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else if(childNode->tag() == "particle-min-position-angle")
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m_pMinPositionAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMinPositionAngle = childNode->value<float>() * DEG_TO_RAD;
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else if(childNode->tag() == "particle-max-position-angle")
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m_pMaxPositionAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMaxPositionAngle = childNode->value<float>() * DEG_TO_RAD;
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else if(childNode->tag() == "particle-velocity") {
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m_pMinVelocity = childNode->value<float>();
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@ -143,16 +145,14 @@ bool ParticleEmitter::load(const OTMLNodePtr& node)
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m_pMinVelocity = childNode->value<float>();
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else if(childNode->tag() == "particle-max-velocity")
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m_pMaxVelocity = childNode->value<float>();
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else if(childNode->tag() == "particle-velocity-angle") {
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m_pMinVelocityAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMaxVelocityAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMinVelocityAngle = childNode->value<float>() * DEG_TO_RAD;
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m_pMaxVelocityAngle = childNode->value<float>() * DEG_TO_RAD;
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}
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else if(childNode->tag() == "particle-min-velocity-angle")
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m_pMinVelocityAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMinVelocityAngle = childNode->value<float>() * DEG_TO_RAD;
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else if(childNode->tag() == "particle-max-velocity-angle")
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m_pMaxVelocityAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMaxVelocityAngle = childNode->value<float>() * DEG_TO_RAD;
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else if(childNode->tag() == "particle-acceleration") {
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m_pMinAcceleration = childNode->value<float>();
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m_pMaxAcceleration = childNode->value<float>();
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@ -161,16 +161,14 @@ bool ParticleEmitter::load(const OTMLNodePtr& node)
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m_pMinAcceleration = childNode->value<float>();
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else if(childNode->tag() == "particle-max-acceleration")
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m_pMaxAcceleration = childNode->value<float>();
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else if(childNode->tag() == "particle-acceleration-angle") {
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m_pMinAccelerationAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMaxAccelerationAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMinAccelerationAngle = childNode->value<float>() * DEG_TO_RAD;
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m_pMaxAccelerationAngle = childNode->value<float>() * DEG_TO_RAD;
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}
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else if(childNode->tag() == "particle-min-acceleration-angle")
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m_pMinAccelerationAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMinAccelerationAngle = childNode->value<float>() * DEG_TO_RAD;
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else if(childNode->tag() == "particle-max-acceleration-angle")
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m_pMaxAccelerationAngle = (childNode->value<float>() * Fw::pi / 180.0) - Fw::pi;
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m_pMaxAccelerationAngle = childNode->value<float>() * DEG_TO_RAD;
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else if(childNode->tag() == "particle-duration") {
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m_pMinDuration = childNode->value<float>();
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m_pMaxDuration = childNode->value<float>();
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@ -179,32 +177,14 @@ bool ParticleEmitter::load(const OTMLNodePtr& node)
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m_pMinDuration = childNode->value<float>();
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else if(childNode->tag() == "particle-max-duration")
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m_pMaxDuration = childNode->value<float>();
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else if(childNode->tag() == "particle-size") {
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std::string value = childNode->value();
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std::vector<std::string> split;
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boost::split(split, value, boost::is_any_of(std::string(" ")));
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if(split.size() == 2) {
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m_pMinSize = Size(Fw::safeCast<int>(split[0]), Fw::safeCast<int>(split[1]));
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m_pMaxSize = Size(Fw::safeCast<int>(split[0]), Fw::safeCast<int>(split[1]));
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}
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}
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else if(childNode->tag() == "particle-min-size") {
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std::string value = childNode->value();
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std::vector<std::string> split;
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boost::split(split, value, boost::is_any_of(std::string(" ")));
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if(split.size() == 2) {
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m_pMinSize = Size(Fw::safeCast<int>(split[0]), Fw::safeCast<int>(split[1]));
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}
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}
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else if(childNode->tag() == "particle-max-size") {
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std::string value = childNode->value();
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std::vector<std::string> split;
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boost::split(split, value, boost::is_any_of(std::string(" ")));
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if(split.size() == 2) {
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m_pMaxSize = Size(Fw::safeCast<int>(split[0]), Fw::safeCast<int>(split[1]));
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}
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m_pMinSize = childNode->value<Size>();
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m_pMaxSize = childNode->value<Size>();
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}
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else if(childNode->tag() == "particle-min-size")
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m_pMinSize = childNode->value<Size>();
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else if(childNode->tag() == "particle-max-size")
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m_pMaxSize = childNode->value<Size>();
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else if(childNode->tag() == "particle-color")
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m_pColor = childNode->value<Color>();
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else if(childNode->tag() == "particle-texture")
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@ -221,7 +201,7 @@ void ParticleEmitter::render()
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void ParticleEmitter::update()
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{
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ticks_t elapsedTicks = g_clock.ticks() - m_startTicks;
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float elapsedTime = g_clock.timeElapsed(m_startTime);
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// update particles
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for(auto it = m_particles.begin(), end = m_particles.end(); it != end;) {
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@ -235,20 +215,20 @@ void ParticleEmitter::update()
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}
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// check if finished
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if(m_duration >= 0 && elapsedTicks > m_duration * 1000) {
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if(m_duration > 0 && elapsedTime > m_duration) {
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// stop emitting but only self remove when there are no particles left
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if(m_particles.size() == 0)
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m_finished = true;
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return;
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}
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int currentBurst = elapsedTicks / 1000.0 / m_burstRate + 1;
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int currentBurst = (elapsedTime / m_burstRate) + 1;
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for(int b = m_currentBurst; b < currentBurst; ++b) {
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// every burst created at same position.
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float pRadius = Fw::randomRange(m_pMinPositionRadius, m_pMaxPositionRadius);
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float pAngle = Fw::randomRange(m_pMinPositionAngle, m_pMaxPositionAngle);
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Point pPosition = Point(-pRadius * cos(pAngle), pRadius * sin(pAngle));
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Point pPosition = m_position + Point(pRadius * cos(pAngle), pRadius * sin(pAngle));
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for(int p = 0; p < m_burstCount; ++p) {
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@ -256,17 +236,16 @@ void ParticleEmitter::update()
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float pDuration = Fw::randomRange(m_pMinDuration, m_pMaxDuration);
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// particles initial velocity
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float pVelocity = Fw::randomRange(m_pMinVelocity, m_pMaxVelocity);
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float pVelocityAbs = Fw::randomRange(m_pMinVelocity, m_pMaxVelocity);
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float pVelocityAngle = Fw::randomRange(m_pMinVelocityAngle, m_pMaxVelocityAngle);
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PointF pVelocity(pVelocityAbs * cos(pVelocityAngle), pVelocityAbs * sin(pVelocityAngle));
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// particles initial acceleration
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float pAcceleration = Fw::randomRange(m_pMinAcceleration, m_pMaxAcceleration);
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float pAccelerationAbs = Fw::randomRange(m_pMinAcceleration, m_pMaxAcceleration);
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float pAccelerationAngle = Fw::randomRange(m_pMinAccelerationAngle, m_pMaxAccelerationAngle);
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PointF pAcceleration(pAccelerationAbs * cos(pAccelerationAngle), pAccelerationAbs * sin(pAccelerationAngle));
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m_particles.push_back(ParticlePtr(new Particle(Rect(m_position + pPosition, pSize),
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-pVelocity * cos(pVelocityAngle), pVelocity * sin(pVelocityAngle),
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-pAcceleration * cos(pAccelerationAngle), pAcceleration * sin(pAccelerationAngle),
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pDuration, m_pColor, m_pTexture)));
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m_particles.push_back(ParticlePtr(new Particle(pPosition, pSize, pVelocity, pAcceleration, pDuration, m_pColor, m_pTexture)));
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}
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}
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