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-rw-r--r--src/crepe/Particle.cpp13
-rw-r--r--src/crepe/Particle.h14
-rw-r--r--src/crepe/api/LoopManager.cpp1
-rw-r--r--src/crepe/api/ParticleEmitter.cpp7
-rw-r--r--src/crepe/api/ParticleEmitter.h53
-rw-r--r--src/crepe/system/ParticleSystem.cpp89
-rw-r--r--src/crepe/system/ParticleSystem.h22
-rw-r--r--src/crepe/system/RenderSystem.cpp4
-rw-r--r--src/example/game.cpp20
-rw-r--r--src/example/rendering_particle.cpp22
-rw-r--r--src/test/ParticleTest.cpp98
11 files changed, 170 insertions, 173 deletions
diff --git a/src/crepe/Particle.cpp b/src/crepe/Particle.cpp
index 485a0d4..b340826 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;
@@ -15,16 +15,17 @@ void Particle::reset(uint32_t lifespan, const vec2 & position, const vec2 & velo
this->force_over_time = {0, 0};
}
-void Particle::update() {
+void Particle::update(double dt) {
// Deactivate particle if it has exceeded its lifespan
- if (++time_in_life >= lifespan) {
+ time_in_life += dt;
+ if (time_in_life >= lifespan) {
this->active = false;
return;
}
// Update velocity based on accumulated force and update position
- this->velocity += force_over_time;
- this->position += velocity;
+ this->velocity += force_over_time * dt;
+ this->position += velocity * dt;
}
void Particle::stop_movement() {
diff --git a/src/crepe/Particle.h b/src/crepe/Particle.h
index d0397c9..ee0cd66 100644
--- a/src/crepe/Particle.h
+++ b/src/crepe/Particle.h
@@ -14,8 +14,6 @@ namespace crepe {
* can also be reset or stopped.
*/
class Particle {
- // TODO: add friend particleSsytem and rendersystem. Unit test will fail.
-
public:
//! Position of the particle in 2D space.
vec2 position;
@@ -24,13 +22,13 @@ public:
//! Accumulated force affecting the particle over time.
vec2 force_over_time;
//! Total lifespan of the particle in milliseconds.
- uint32_t lifespan;
+ float 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;
+ float 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.
@@ -43,14 +41,16 @@ 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.
*
* Advances the particle's position based on its velocity and applies accumulated forces.
* Deactivates the particle if its lifespan has expired.
+ * \param dt The amount of fixed delta time that has passed.
*/
- void update();
+ void update(double dt);
/**
* \brief Stops the particle's movement.
*
diff --git a/src/crepe/api/LoopManager.cpp b/src/crepe/api/LoopManager.cpp
index b5e5ff7..7a78019 100644
--- a/src/crepe/api/LoopManager.cpp
+++ b/src/crepe/api/LoopManager.cpp
@@ -65,6 +65,7 @@ void LoopManager::fixed_update() {
this->get_system<InputSystem>().update();
this->event_manager.dispatch_events();
this->get_system<ScriptSystem>().update();
+ this->get_system<ParticleSystem>().update();
this->get_system<AISystem>().update();
this->get_system<PhysicsSystem>().update();
this->get_system<CollisionSystem>().update();
diff --git a/src/crepe/api/ParticleEmitter.cpp b/src/crepe/api/ParticleEmitter.cpp
index 90b77a0..4f54bbd 100644
--- a/src/crepe/api/ParticleEmitter.cpp
+++ b/src/crepe/api/ParticleEmitter.cpp
@@ -1,11 +1,14 @@
#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),
+ sprite(sprite),
data(data) {
for (size_t i = 0; i < this->data.max_particles; i++) {
- this->data.particles.emplace_back();
+ this->particles.emplace_back();
}
}
diff --git a/src/crepe/api/ParticleEmitter.h b/src/crepe/api/ParticleEmitter.h
index b83fd61..8ac2e72 100644
--- a/src/crepe/api/ParticleEmitter.h
+++ b/src/crepe/api/ParticleEmitter.h
@@ -1,7 +1,11 @@
#pragma once
+#include <cmath>
#include <vector>
+#include "system/ParticleSystem.h"
+#include "system/RenderSystem.h"
+
#include "Component.h"
#include "Particle.h"
#include "types.h"
@@ -26,15 +30,18 @@ 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.
*
@@ -42,32 +49,28 @@ public:
* and the sprite used for rendering particles.
*/
struct Data {
- //! position of the emitter
- vec2 position;
+ //! offset of the emitter relative to transform
+ vec2 offset;
//! maximum number of particles
- const unsigned int max_particles = 0;
- //! rate of particle emission per update (Lowest value = 0.001 any lower is ignored)
- double emission_rate = 0;
+ const unsigned int max_particles = 256;
+ //! rate of particle emission per second
+ float emission_rate = 50;
//! min speed of the particles
- double min_speed = 0;
+ float min_speed = 100;
//! min speed of the particles
- double max_speed = 0;
+ float max_speed = 100;
//! min angle of particle emission
- double min_angle = 0;
+ float min_angle = 0;
//! max angle of particle emission
- double max_angle = 0;
- //! begin Lifespan of particle (only visual)
- double begin_lifespan = 0.0;
- //! end Lifespan of particle
- double end_lifespan = 0.0;
+ float max_angle = 0;
+ //! begin Lifespan of particle in seconds (only visual)
+ float begin_lifespan = 0.0;
+ //! end Lifespan of particle in seconds
+ 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:
@@ -75,11 +78,21 @@ 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.
Data data;
+
+private:
+ //! Only ParticleSystem can move and read particles
+ friend ParticleSystem;
+ //! Only RenderSystem can read particles
+ friend RenderSystem;
+ //! Saves time left over from last update event.
+ float spawn_accumulator = 0;
+ //! collection of particles
+ std::vector<Particle> particles;
};
} // namespace crepe
diff --git a/src/crepe/system/ParticleSystem.cpp b/src/crepe/system/ParticleSystem.cpp
index b14c52f..e61f0ce 100644
--- a/src/crepe/system/ParticleSystem.cpp
+++ b/src/crepe/system/ParticleSystem.cpp
@@ -1,3 +1,4 @@
+#include <chrono>
#include <cmath>
#include <cstdlib>
#include <ctime>
@@ -5,6 +6,7 @@
#include "../api/ParticleEmitter.h"
#include "../api/Transform.h"
#include "../manager/ComponentManager.h"
+#include "../manager/LoopTimerManager.h"
#include "ParticleSystem.h"
@@ -12,7 +14,11 @@ using namespace crepe;
void ParticleSystem::update() {
// Get all emitters
- ComponentManager & mgr = this->mediator.component_manager;
+ const Mediator & mediator = this->mediator;
+ LoopTimerManager & loop_timer = mediator.loop_timer;
+ ComponentManager & mgr = mediator.component_manager;
+ float dt = loop_timer.get_scaled_fixed_delta_time().count();
+
RefVector<ParticleEmitter> emitters = mgr.get_components_by_type<ParticleEmitter>();
for (ParticleEmitter & emitter : emitters) {
@@ -21,38 +27,39 @@ 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);
- for (size_t i = 0; i < updates; i++) {
- emit_particle(emitter, transform);
+ emitter.spawn_accumulator = emitter.data.emission_rate * dt;
+ while (emitter.spawn_accumulator >= 1.0) {
+ this->emit_particle(emitter, transform);
+ emitter.spawn_accumulator -= 1.0;
}
// Update all particles
- for (Particle & particle : emitter.data.particles) {
+ for (Particle & particle : emitter.particles) {
if (particle.active) {
- particle.update();
+ particle.update(dt);
}
}
// Check if within boundary
- check_bounds(emitter, transform);
+ this->check_bounds(emitter, transform);
}
-
- this->update_count = (this->update_count + 1) % this->MAX_UPDATE_COUNT;
}
void ParticleSystem::emit_particle(ParticleEmitter & emitter, const Transform & transform) {
constexpr float DEG_TO_RAD = M_PI / 180.0;
- vec2 initial_position = emitter.data.position + transform.position;
- float random_angle = generate_random_angle(emitter.data.min_angle, emitter.data.max_angle);
+ vec2 initial_position = emitter.data.offset + transform.position;
+ float random_angle
+ = this->generate_random_angle(emitter.data.min_angle, emitter.data.max_angle);
- float random_speed = generate_random_speed(emitter.data.min_speed, emitter.data.max_speed);
+ float random_speed
+ = this->generate_random_speed(emitter.data.min_speed, emitter.data.max_speed);
float angle_radians = random_angle * DEG_TO_RAD;
vec2 velocity
= {random_speed * std::cos(angle_radians), random_speed * std::sin(angle_radians)};
- for (Particle & particle : emitter.data.particles) {
+ for (Particle & particle : emitter.particles) {
if (!particle.active) {
particle.reset(emitter.data.end_lifespan, initial_position, velocity,
random_angle);
@@ -61,66 +68,54 @@ 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;
-
- if (fractional_part > 0) {
- int denominator = static_cast<int>(1.0 / fractional_part);
- return (count % denominator == 0) ? 1 : 0;
- }
-
- return static_cast<int>(emission);
-}
-
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;
+ vec2 offset = emitter.data.boundary.offset + transform.position + emitter.data.offset;
+ 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;
+ float left = offset.x - half_width;
+ float right = offset.x + half_width;
+ float top = offset.y - half_height;
+ float bottom = offset.y + half_height;
- for (Particle & particle : emitter.data.particles) {
+ for (Particle & particle : emitter.particles) {
const vec2 & position = particle.position;
- bool within_bounds = (position.x >= LEFT && position.x <= RIGHT && position.y >= TOP
- && position.y <= BOTTOM);
-
+ bool within_bounds = (position.x >= left && position.x <= right && position.y >= top
+ && position.y <= bottom);
+ //if not within bounds do a reset or stop velocity
if (!within_bounds) {
if (emitter.data.boundary.reset_on_exit) {
particle.active = false;
} else {
particle.velocity = {0, 0};
- if (position.x < LEFT) particle.position.x = LEFT;
- else if (position.x > RIGHT) particle.position.x = RIGHT;
- if (position.y < TOP) particle.position.y = TOP;
- else if (position.y > BOTTOM) particle.position.y = BOTTOM;
+ if (position.x < left) particle.position.x = left;
+ else if (position.x > right) particle.position.x = right;
+ if (position.y < top) particle.position.y = top;
+ else if (position.y > bottom) particle.position.y = bottom;
}
}
}
}
-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..154521d 100644
--- a/src/crepe/system/ParticleSystem.h
+++ b/src/crepe/system/ParticleSystem.h
@@ -32,16 +32,6 @@ private:
void emit_particle(ParticleEmitter & emitter, const Transform & transform);
/**
- * \brief Calculates the number of times particles should be emitted based on emission rate
- * and update count.
- *
- * \param count Current update count.
- * \param emission Emission rate.
- * \return The number of particles to emit.
- */
- int calculate_update(int count, double emission) const;
-
- /**
* \brief Checks whether particles are within the emitter’s boundary, resets or stops
* particles if they exit.
*
@@ -57,7 +47,7 @@ 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.
@@ -66,15 +56,7 @@ private:
* \param max_speed Maximum emission speed.
* \return Random speed.
*/
- double generate_random_speed(double min_speed, double max_speed) const;
-
-private:
- //! Counter to count updates to determine how many times emit_particle is
- // called.
- unsigned int update_count = 0;
- //! Determines the lowest amount of emission rate (1000 = 0.001 = 1 particle per 1000
- // updates).
- static constexpr unsigned int MAX_UPDATE_COUNT = 100;
+ float generate_random_speed(float min_speed, float max_speed) const;
};
} // namespace crepe
diff --git a/src/crepe/system/RenderSystem.cpp b/src/crepe/system/RenderSystem.cpp
index afd9548..505433a 100644
--- a/src/crepe/system/RenderSystem.cpp
+++ b/src/crepe/system/RenderSystem.cpp
@@ -83,11 +83,11 @@ bool RenderSystem::render_particle(const Sprite & sprite, const double & scale)
bool rendering_particles = false;
for (const ParticleEmitter & em : emitters) {
- if (&em.data.sprite != &sprite) continue;
+ if (&em.sprite != &sprite) continue;
rendering_particles = true;
if (!em.active) continue;
- for (const Particle & p : em.data.particles) {
+ for (const Particle & p : em.particles) {
if (!p.active) continue;
ctx.draw(SDLContext::RenderContext{
diff --git a/src/example/game.cpp b/src/example/game.cpp
index 8ea50ea..ed6afac 100644
--- a/src/example/game.cpp
+++ b/src/example/game.cpp
@@ -1,4 +1,5 @@
#include "api/CircleCollider.h"
+#include "api/ParticleEmitter.h"
#include "api/Scene.h"
#include "manager/ComponentManager.h"
#include "manager/Mediator.h"
@@ -259,6 +260,25 @@ public:
})
.active
= false;
+ Asset img5{"asset/texture/square.png"};
+
+ GameObject particle = new_object(
+ "Name", "Tag", vec2{screen_size_width / 2, screen_size_height / 2}, 0, 1);
+ auto & particle_image = particle.add_component<Sprite>(img5, Sprite::Data{
+ .size = {5, 5},
+ });
+ auto & test
+ = particle.add_component<ParticleEmitter>(particle_image, ParticleEmitter::Data{
+ .offset = {0, 0},
+ .max_particles = 256,
+ .emission_rate = 50,
+ .min_speed = 10,
+ .max_speed = 20,
+ .min_angle = -20,
+ .max_angle = 20,
+ .begin_lifespan = 0,
+ .end_lifespan = 5,
+ });
}
string get_name() const { return "scene1"; }
diff --git a/src/example/rendering_particle.cpp b/src/example/rendering_particle.cpp
index 13e625f..add43f4 100644
--- a/src/example/rendering_particle.cpp
+++ b/src/example/rendering_particle.cpp
@@ -18,28 +18,6 @@
using namespace crepe;
using namespace std;
-/*
- auto & test = game_object.add_component<ParticleEmitter>(ParticleEmitter::Data{
- .position = {0, 0},
- .max_particles = 10,
- .emission_rate = 0.1,
- .min_speed = 6,
- .max_speed = 20,
- .min_angle = -20,
- .max_angle = 20,
- .begin_lifespan = 0,
- .end_lifespan = 60,
- .force_over_time = vec2{0, 0},
- .boundary{
- .width = 1000,
- .height = 1000,
- .offset = vec2{0, 0},
- .reset_on_exit = false,
- },
- .sprite = test_sprite,
- });
- */
-
class TestScene : public Scene {
public:
void load_scene() {
diff --git a/src/test/ParticleTest.cpp b/src/test/ParticleTest.cpp
index 9112a3f..9263e00 100644
--- a/src/test/ParticleTest.cpp
+++ b/src/test/ParticleTest.cpp
@@ -1,15 +1,18 @@
#include "api/Asset.h"
-#include <crepe/Particle.h>
#include <crepe/api/Config.h>
#include <crepe/api/GameObject.h>
-#include <crepe/api/ParticleEmitter.h>
#include <crepe/api/Rigidbody.h>
#include <crepe/api/Sprite.h>
#include <crepe/api/Transform.h>
#include <crepe/manager/ComponentManager.h>
-#include <crepe/system/ParticleSystem.h>
+#include <crepe/manager/LoopTimerManager.h>
#include <gtest/gtest.h>
#include <math.h>
+#define protected public
+#define private public
+#include <crepe/Particle.h>
+#include <crepe/api/ParticleEmitter.h>
+#include <crepe/system/ParticleSystem.h>
using namespace std;
using namespace std::chrono_literals;
@@ -21,6 +24,7 @@ class ParticlesTest : public ::testing::Test {
public:
ComponentManager component_manager{m};
ParticleSystem particle_system{m};
+ LoopTimerManager loop_timer{m};
void SetUp() override {
ComponentManager & mgr = this->component_manager;
@@ -38,25 +42,25 @@ public:
.size = {10, 10},
});
- game_object.add_component<ParticleEmitter>(ParticleEmitter::Data{
- .position = {0, 0},
- .max_particles = 100,
- .emission_rate = 0,
- .min_speed = 0,
- .max_speed = 0,
- .min_angle = 0,
- .max_angle = 0,
- .begin_lifespan = 0,
- .end_lifespan = 0,
- .force_over_time = vec2{0, 0},
- .boundary{
- .width = 0,
- .height = 0,
- .offset = vec2{0, 0},
- .reset_on_exit = false,
- },
- .sprite = test_sprite,
- });
+ game_object.add_component<ParticleEmitter>(test_sprite,
+ ParticleEmitter::Data{
+ .offset = {0, 0},
+ .max_particles = 100,
+ .emission_rate = 0,
+ .min_speed = 0,
+ .max_speed = 0,
+ .min_angle = 0,
+ .max_angle = 0,
+ .begin_lifespan = 0,
+ .end_lifespan = 0,
+ .force_over_time = vec2{0, 0},
+ .boundary{
+ .width = 0,
+ .height = 0,
+ .offset = vec2{0, 0},
+ .reset_on_exit = false,
+ },
+ });
}
transforms = mgr.get_components_by_id<Transform>(0);
Transform & transform = transforms.front().get();
@@ -66,7 +70,7 @@ public:
std::vector<std::reference_wrapper<ParticleEmitter>> rigidbodies
= mgr.get_components_by_id<ParticleEmitter>(0);
ParticleEmitter & emitter = rigidbodies.front().get();
- emitter.data.position = {0, 0};
+ emitter.data.offset = {0, 0};
emitter.data.emission_rate = 0;
emitter.data.min_speed = 0;
emitter.data.max_speed = 0;
@@ -76,7 +80,7 @@ public:
emitter.data.end_lifespan = 0;
emitter.data.force_over_time = vec2{0, 0};
emitter.data.boundary = {0, 0, vec2{0, 0}, false};
- for (auto & particle : emitter.data.particles) {
+ for (auto & particle : emitter.particles) {
particle.active = false;
}
}
@@ -95,19 +99,19 @@ TEST_F(ParticlesTest, spawnParticle) {
emitter.data.max_angle = 10;
particle_system.update();
//check if nothing happend
- EXPECT_EQ(emitter.data.particles[0].active, false);
- emitter.data.emission_rate = 1;
+ EXPECT_EQ(emitter.particles[0].active, false);
+ emitter.data.emission_rate = 50;
//check particle spawnes
particle_system.update();
- EXPECT_EQ(emitter.data.particles[0].active, true);
+ EXPECT_EQ(emitter.particles[0].active, true);
particle_system.update();
- EXPECT_EQ(emitter.data.particles[1].active, true);
+ EXPECT_EQ(emitter.particles[1].active, true);
particle_system.update();
- EXPECT_EQ(emitter.data.particles[2].active, true);
+ EXPECT_EQ(emitter.particles[2].active, true);
particle_system.update();
- EXPECT_EQ(emitter.data.particles[3].active, true);
+ EXPECT_EQ(emitter.particles[3].active, true);
- for (auto & particle : emitter.data.particles) {
+ for (auto & particle : emitter.particles) {
// Check velocity range
EXPECT_GE(particle.velocity.x, emitter.data.min_speed);
// Speed should be greater than or equal to min_speed
@@ -133,13 +137,13 @@ TEST_F(ParticlesTest, moveParticleHorizontal) {
emitter.data.end_lifespan = 100;
emitter.data.boundary.height = 100;
emitter.data.boundary.width = 100;
- emitter.data.min_speed = 1;
- emitter.data.max_speed = 1;
+ emitter.data.min_speed = 50;
+ emitter.data.max_speed = 50;
emitter.data.max_angle = 0;
- emitter.data.emission_rate = 1;
+ emitter.data.emission_rate = 50;
for (int a = 1; a < emitter.data.boundary.width / 2; a++) {
particle_system.update();
- EXPECT_EQ(emitter.data.particles[0].position.x, a);
+ EXPECT_EQ(emitter.particles[0].position.x, a);
}
}
@@ -150,14 +154,14 @@ TEST_F(ParticlesTest, moveParticleVertical) {
emitter.data.end_lifespan = 100;
emitter.data.boundary.height = 100;
emitter.data.boundary.width = 100;
- emitter.data.min_speed = 1;
- emitter.data.max_speed = 1;
+ emitter.data.min_speed = 50;
+ emitter.data.max_speed = 50;
emitter.data.min_angle = 90;
emitter.data.max_angle = 90;
- emitter.data.emission_rate = 1;
+ emitter.data.emission_rate = 50;
for (int a = 1; a < emitter.data.boundary.width / 2; a++) {
particle_system.update();
- EXPECT_EQ(emitter.data.particles[0].position.y, a);
+ EXPECT_EQ(emitter.particles[0].position.y, a);
}
}
@@ -177,7 +181,7 @@ TEST_F(ParticlesTest, boundaryParticleReset) {
for (int a = 0; a < emitter.data.boundary.width / 2 + 1; a++) {
particle_system.update();
}
- EXPECT_EQ(emitter.data.particles[0].active, false);
+ EXPECT_EQ(emitter.particles[0].active, false);
}
TEST_F(ParticlesTest, boundaryParticleStop) {
@@ -197,12 +201,12 @@ TEST_F(ParticlesTest, boundaryParticleStop) {
particle_system.update();
}
const double TOLERANCE = 0.01;
- EXPECT_NEAR(emitter.data.particles[0].velocity.x, 0, TOLERANCE);
- EXPECT_NEAR(emitter.data.particles[0].velocity.y, 0, TOLERANCE);
- if (emitter.data.particles[0].velocity.x != 0)
- EXPECT_NEAR(std::abs(emitter.data.particles[0].position.x),
+ EXPECT_NEAR(emitter.particles[0].velocity.x, 0, TOLERANCE);
+ EXPECT_NEAR(emitter.particles[0].velocity.y, 0, TOLERANCE);
+ if (emitter.particles[0].velocity.x != 0)
+ EXPECT_NEAR(std::abs(emitter.particles[0].position.x),
emitter.data.boundary.height / 2, TOLERANCE);
- if (emitter.data.particles[0].velocity.y != 0)
- EXPECT_NEAR(std::abs(emitter.data.particles[0].position.y),
- emitter.data.boundary.width / 2, TOLERANCE);
+ if (emitter.particles[0].velocity.y != 0)
+ EXPECT_NEAR(std::abs(emitter.particles[0].position.y), emitter.data.boundary.width / 2,
+ TOLERANCE);
}