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-rw-r--r--src/crepe/Particle.cpp4
-rw-r--r--src/crepe/Particle.h8
-rw-r--r--src/crepe/api/ParticleEmitter.cpp5
-rw-r--r--src/crepe/api/ParticleEmitter.h29
-rw-r--r--src/crepe/system/ParticleSystem.cpp38
-rw-r--r--src/crepe/system/ParticleSystem.h6
6 files changed, 47 insertions, 43 deletions
diff --git a/src/crepe/Particle.cpp b/src/crepe/Particle.cpp
index 485a0d4..ce000a1 100644
--- a/src/crepe/Particle.cpp
+++ b/src/crepe/Particle.cpp
@@ -2,8 +2,8 @@
using namespace crepe;
-void Particle::reset(uint32_t lifespan, const vec2 & position, const vec2 & velocity,
- double angle) {
+void Particle::reset(unsigned int lifespan, const vec2 & position, const vec2 & velocity,
+ float angle) {
// Initialize the particle state
this->time_in_life = 0;
this->lifespan = lifespan;
diff --git a/src/crepe/Particle.h b/src/crepe/Particle.h
index d0397c9..4fa93a1 100644
--- a/src/crepe/Particle.h
+++ b/src/crepe/Particle.h
@@ -24,13 +24,13 @@ public:
//! Accumulated force affecting the particle over time.
vec2 force_over_time;
//! Total lifespan of the particle in milliseconds.
- uint32_t lifespan;
+ unsigned int lifespan;
//! Active state of the particle; true if it is in use, false otherwise.
bool active = false;
//! The time the particle has been alive, in milliseconds.
- uint32_t time_in_life = 0;
+ unsigned int time_in_life = 0;
//! The angle at which the particle is oriented or moving.
- double angle = 0;
+ float angle = 0;
/**
* \brief Resets the particle with new properties.
@@ -43,7 +43,7 @@ public:
* \param velocity The initial velocity of the particle.
* \param angle The angle of the particle's trajectory or orientation.
*/
- void reset(uint32_t lifespan, const vec2 & position, const vec2 & velocity, double angle);
+ void reset(unsigned int lifespan, const vec2 & position, const vec2 & velocity, float angle);
/**
* \brief Updates the particle's state.
*
diff --git a/src/crepe/api/ParticleEmitter.cpp b/src/crepe/api/ParticleEmitter.cpp
index 90b77a0..1cfdceb 100644
--- a/src/crepe/api/ParticleEmitter.cpp
+++ b/src/crepe/api/ParticleEmitter.cpp
@@ -1,10 +1,11 @@
#include "ParticleEmitter.h"
+#include "api/Sprite.h"
using namespace crepe;
-ParticleEmitter::ParticleEmitter(game_object_id_t game_object_id, const Data & data)
+ParticleEmitter::ParticleEmitter(game_object_id_t game_object_id, const Sprite & sprite, const Data & data)
: Component(game_object_id),
- data(data) {
+ sprite(sprite), data(data) {
for (size_t i = 0; i < this->data.max_particles; i++) {
this->data.particles.emplace_back();
}
diff --git a/src/crepe/api/ParticleEmitter.h b/src/crepe/api/ParticleEmitter.h
index b83fd61..e8fa15e 100644
--- a/src/crepe/api/ParticleEmitter.h
+++ b/src/crepe/api/ParticleEmitter.h
@@ -1,5 +1,6 @@
#pragma once
+#include <cmath>
#include <vector>
#include "Component.h"
@@ -26,15 +27,18 @@ public:
*/
struct Boundary {
//! boundary width (midpoint is emitter location)
- double width = 0.0;
+ float width = INFINITY;
//! boundary height (midpoint is emitter location)
- double height = 0.0;
+ float height = INFINITY;
//! boundary offset from particle emitter location
vec2 offset;
//! reset on exit or stop velocity and set max postion
bool reset_on_exit = false;
};
+ //! sprite reference of displayed sprite
+ const Sprite & sprite;
+
/**
* \brief Holds parameters that control particle emission.
*
@@ -45,29 +49,28 @@ public:
//! position of the emitter
vec2 position;
//! maximum number of particles
- const unsigned int max_particles = 0;
+ const unsigned int max_particles = 256;
//! rate of particle emission per update (Lowest value = 0.001 any lower is ignored)
- double emission_rate = 0;
+ float emission_rate = 1;
//! min speed of the particles
- double min_speed = 0;
+ float min_speed = 1;
//! min speed of the particles
- double max_speed = 0;
+ float max_speed = 2;
//! min angle of particle emission
- double min_angle = 0;
+ float min_angle = 0;
//! max angle of particle emission
- double max_angle = 0;
+ float max_angle = 0;
//! begin Lifespan of particle (only visual)
- double begin_lifespan = 0.0;
+ float begin_lifespan = 0.0;
//! end Lifespan of particle
- double end_lifespan = 0.0;
+ float end_lifespan = 10.0;
//! force over time (physics)
vec2 force_over_time;
//! particle boundary
Boundary boundary;
//! collection of particles
std::vector<Particle> particles;
- //! sprite reference
- const Sprite & sprite;
+
};
public:
@@ -75,7 +78,7 @@ public:
* \param game_object_id Identifier for the game object using this emitter.
* \param data Configuration data defining particle properties.
*/
- ParticleEmitter(game_object_id_t game_object_id, const Data & data);
+ ParticleEmitter(game_object_id_t game_object_id, const Sprite & sprite,const Data & data);
public:
//! Configuration data for particle emission settings.
diff --git a/src/crepe/system/ParticleSystem.cpp b/src/crepe/system/ParticleSystem.cpp
index b14c52f..596b4b0 100644
--- a/src/crepe/system/ParticleSystem.cpp
+++ b/src/crepe/system/ParticleSystem.cpp
@@ -21,9 +21,9 @@ void ParticleSystem::update() {
= mgr.get_components_by_id<Transform>(emitter.game_object_id).front().get();
// Emit particles based on emission_rate
- int updates = calculate_update(this->update_count, emitter.data.emission_rate);
+ int updates = this->calculate_update(this->update_count, emitter.data.emission_rate);
for (size_t i = 0; i < updates; i++) {
- emit_particle(emitter, transform);
+ this->emit_particle(emitter, transform);
}
// Update all particles
@@ -34,7 +34,7 @@ void ParticleSystem::update() {
}
// Check if within boundary
- check_bounds(emitter, transform);
+ this->check_bounds(emitter, transform);
}
this->update_count = (this->update_count + 1) % this->MAX_UPDATE_COUNT;
@@ -61,9 +61,9 @@ void ParticleSystem::emit_particle(ParticleEmitter & emitter, const Transform &
}
}
-int ParticleSystem::calculate_update(int count, double emission) const {
- double integer_part = std::floor(emission);
- double fractional_part = emission - integer_part;
+int ParticleSystem::calculate_update(int count, float emission) const {
+ float integer_part = std::floor(emission);
+ float fractional_part = emission - integer_part;
if (fractional_part > 0) {
int denominator = static_cast<int>(1.0 / fractional_part);
@@ -75,13 +75,13 @@ int ParticleSystem::calculate_update(int count, double emission) const {
void ParticleSystem::check_bounds(ParticleEmitter & emitter, const Transform & transform) {
vec2 offset = emitter.data.boundary.offset + transform.position + emitter.data.position;
- double half_width = emitter.data.boundary.width / 2.0;
- double half_height = emitter.data.boundary.height / 2.0;
+ float half_width = emitter.data.boundary.width / 2.0;
+ float half_height = emitter.data.boundary.height / 2.0;
- const double LEFT = offset.x - half_width;
- const double RIGHT = offset.x + half_width;
- const double TOP = offset.y - half_height;
- const double BOTTOM = offset.y + half_height;
+ const float LEFT = offset.x - half_width;
+ const float RIGHT = offset.x + half_width;
+ const float TOP = offset.y - half_height;
+ const float BOTTOM = offset.y + half_height;
for (Particle & particle : emitter.data.particles) {
const vec2 & position = particle.position;
@@ -102,25 +102,25 @@ void ParticleSystem::check_bounds(ParticleEmitter & emitter, const Transform & t
}
}
-double ParticleSystem::generate_random_angle(double min_angle, double max_angle) const {
+float ParticleSystem::generate_random_angle(float min_angle, float max_angle) const {
if (min_angle == max_angle) {
return min_angle;
} else if (min_angle < max_angle) {
return min_angle
- + static_cast<double>(std::rand() % static_cast<int>(max_angle - min_angle));
+ + static_cast<float>(std::rand() % static_cast<int>(max_angle - min_angle));
} else {
- double angle_offset = (360 - min_angle) + max_angle;
- double random_angle
- = min_angle + static_cast<double>(std::rand() % static_cast<int>(angle_offset));
+ float angle_offset = (360 - min_angle) + max_angle;
+ float random_angle
+ = min_angle + static_cast<float>(std::rand() % static_cast<int>(angle_offset));
return (random_angle >= 360) ? random_angle - 360 : random_angle;
}
}
-double ParticleSystem::generate_random_speed(double min_speed, double max_speed) const {
+float ParticleSystem::generate_random_speed(float min_speed, float max_speed) const {
if (min_speed == max_speed) {
return min_speed;
} else {
return min_speed
- + static_cast<double>(std::rand() % static_cast<int>(max_speed - min_speed));
+ + static_cast<float>(std::rand() % static_cast<int>(max_speed - min_speed));
}
}
diff --git a/src/crepe/system/ParticleSystem.h b/src/crepe/system/ParticleSystem.h
index 068f01c..2adb0f0 100644
--- a/src/crepe/system/ParticleSystem.h
+++ b/src/crepe/system/ParticleSystem.h
@@ -39,7 +39,7 @@ private:
* \param emission Emission rate.
* \return The number of particles to emit.
*/
- int calculate_update(int count, double emission) const;
+ int calculate_update(int count, float emission) const;
/**
* \brief Checks whether particles are within the emitter’s boundary, resets or stops
@@ -57,7 +57,7 @@ private:
* \param max_angle Maximum emission angle in degrees.
* \return Random angle in degrees.
*/
- double generate_random_angle(double min_angle, double max_angle) const;
+ float generate_random_angle(float min_angle, float max_angle) const;
/**
* \brief Generates a random speed for particle emission within the specified range.
@@ -66,7 +66,7 @@ private:
* \param max_speed Maximum emission speed.
* \return Random speed.
*/
- double generate_random_speed(double min_speed, double max_speed) const;
+ float generate_random_speed(float min_speed, float max_speed) const;
private:
//! Counter to count updates to determine how many times emit_particle is