diff options
Diffstat (limited to 'src/crepe/system')
| -rw-r--r-- | src/crepe/system/CollisionSystem.cpp | 1 | ||||
| -rw-r--r-- | src/crepe/system/ParticleSystem.cpp | 60 | ||||
| -rw-r--r-- | src/crepe/system/ParticleSystem.h | 15 |
3 files changed, 28 insertions, 48 deletions
diff --git a/src/crepe/system/CollisionSystem.cpp b/src/crepe/system/CollisionSystem.cpp index 44a0431..0483693 100644 --- a/src/crepe/system/CollisionSystem.cpp +++ b/src/crepe/system/CollisionSystem.cpp @@ -290,7 +290,6 @@ vec2 CollisionSystem::get_circle_box_resolution(const CircleCollider & circle_co // Compute penetration depth float penetration_depth = circle_collider.radius - distance; - // Compute the resolution vector vec2 resolution = collision_normal * penetration_depth; diff --git a/src/crepe/system/ParticleSystem.cpp b/src/crepe/system/ParticleSystem.cpp index b14c52f..3befb03 100644 --- a/src/crepe/system/ParticleSystem.cpp +++ b/src/crepe/system/ParticleSystem.cpp @@ -12,8 +12,10 @@ using namespace crepe; void ParticleSystem::update() { // Get all emitters + ComponentManager & mgr = this->mediator.component_manager; RefVector<ParticleEmitter> emitters = mgr.get_components_by_type<ParticleEmitter>(); + double dt = LoopTimer::get_instance().get_fixed_delta_time(); for (ParticleEmitter & emitter : emitters) { // Get transform linked to emitter @@ -21,20 +23,21 @@ 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.data.spawn_accumulator = emitter.data.emission_rate * dt; + while (emitter.data.spawn_accumulator >= 1.0) { + this->emit_particle(emitter, transform); + emitter.data.spawn_accumulator -= 1.0; + } + // Update all particles for (Particle & particle : emitter.data.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; @@ -44,9 +47,9 @@ void ParticleSystem::emit_particle(ParticleEmitter & emitter, const 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); + 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 @@ -61,33 +64,20 @@ 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; + 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; bool within_bounds = (position.x >= LEFT && position.x <= RIGHT && position.y >= TOP && position.y <= BOTTOM); - if (!within_bounds) { if (emitter.data.boundary.reset_on_exit) { particle.active = false; @@ -102,25 +92,25 @@ 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..454b65f 100644 --- a/src/crepe/system/ParticleSystem.h +++ b/src/crepe/system/ParticleSystem.h @@ -23,6 +23,7 @@ public: void update() override; private: + /** * \brief Emits a particle from the specified emitter based on its emission properties. * @@ -32,16 +33,6 @@ 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 +48,7 @@ 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 +57,7 @@ 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 |