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-rw-r--r--src/crepe/api/LoopManager.cpp87
-rw-r--r--src/crepe/api/ParticleEmitter.cpp9
-rw-r--r--src/crepe/api/ParticleEmitter.h49
3 files changed, 124 insertions, 21 deletions
diff --git a/src/crepe/api/LoopManager.cpp b/src/crepe/api/LoopManager.cpp
new file mode 100644
index 0000000..7a78019
--- /dev/null
+++ b/src/crepe/api/LoopManager.cpp
@@ -0,0 +1,87 @@
+#include "../facade/SDLContext.h"
+#include "../manager/EventManager.h"
+#include "../manager/LoopTimerManager.h"
+#include "../system/AISystem.h"
+#include "../system/AnimatorSystem.h"
+#include "../system/AudioSystem.h"
+#include "../system/CollisionSystem.h"
+#include "../system/InputSystem.h"
+#include "../system/ParticleSystem.h"
+#include "../system/PhysicsSystem.h"
+#include "../system/RenderSystem.h"
+#include "../system/ScriptSystem.h"
+#include "../util/Log.h"
+
+#include "LoopManager.h"
+
+using namespace crepe;
+using namespace std;
+
+LoopManager::LoopManager() {
+ this->load_system<AnimatorSystem>();
+ this->load_system<CollisionSystem>();
+ this->load_system<ParticleSystem>();
+ this->load_system<PhysicsSystem>();
+ this->load_system<RenderSystem>();
+ this->load_system<ScriptSystem>();
+ this->load_system<InputSystem>();
+ this->event_manager.subscribe<ShutDownEvent>(
+ [this](const ShutDownEvent & event) { return this->on_shutdown(event); });
+ this->load_system<AudioSystem>();
+ this->load_system<AISystem>();
+}
+void LoopManager::start() {
+ this->setup();
+ this->loop();
+}
+
+void LoopManager::setup() {
+ this->game_running = true;
+ this->loop_timer.start();
+ this->scene_manager.load_next_scene();
+}
+
+void LoopManager::loop() {
+ try {
+ while (game_running) {
+ this->loop_timer.update();
+
+ while (this->loop_timer.get_lag() >= this->loop_timer.get_fixed_delta_time()) {
+ this->fixed_update();
+ this->loop_timer.advance_fixed_elapsed_time();
+ }
+
+ this->frame_update();
+ this->loop_timer.enforce_frame_rate();
+ }
+ } catch (const exception & e) {
+ Log::logf(Log::Level::ERROR, "Exception caught in main loop: {}", e.what());
+ this->event_manager.trigger_event<ShutDownEvent>(ShutDownEvent{});
+ }
+}
+
+// will be called at a fixed interval
+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();
+ this->get_system<AudioSystem>().update();
+}
+
+// will be called every frame
+void LoopManager::frame_update() {
+ this->scene_manager.load_next_scene();
+ this->get_system<AnimatorSystem>().update();
+ //render
+ this->get_system<RenderSystem>().update();
+}
+
+bool LoopManager::on_shutdown(const ShutDownEvent & e) {
+ this->game_running = false;
+ // propagate to possible user ShutDownEvent listeners
+ return false;
+}
diff --git a/src/crepe/api/ParticleEmitter.cpp b/src/crepe/api/ParticleEmitter.cpp
index a9c5cf6..9a70334 100644
--- a/src/crepe/api/ParticleEmitter.cpp
+++ b/src/crepe/api/ParticleEmitter.cpp
@@ -1,13 +1,16 @@
#include "ParticleEmitter.h"
+#include "api/Sprite.h"
using namespace crepe;
using namespace std;
-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();
}
}
@@ -20,6 +23,6 @@ void ParticleEmitter::restore(const Component & snapshot) {
}
ParticleEmitter & ParticleEmitter::operator=(const ParticleEmitter & other) {
- data.particles = other.data.particles;
+ this->particles = other.particles;
return *this;
}
diff --git a/src/crepe/api/ParticleEmitter.h b/src/crepe/api/ParticleEmitter.h
index 5f563de..626b356 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.
*
@@ -45,29 +52,25 @@ public:
//! position of the emitter
vec2 position;
//! 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:
@@ -75,7 +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.
@@ -86,6 +89,16 @@ protected:
ParticleEmitter(const ParticleEmitter &) = default;
virtual void restore(const Component & snapshot);
virtual ParticleEmitter & operator=(const ParticleEmitter &);
+
+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