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authorWBoerenkamps <wrj.boerenkamps@student.avans.nl>2024-12-17 19:16:25 +0100
committerWBoerenkamps <wrj.boerenkamps@student.avans.nl>2024-12-17 19:16:25 +0100
commitb421eec1073c1fb4b99d46cc36c5c9cbd8d3c4a7 (patch)
tree461e290e0c2c3adf588f02d24031edc7f8114390 /src/crepe/api/ParticleEmitter.h
parentc4c896c2995f2b74fca322736aa944b28b14a1f6 (diff)
parenta8ccf7fe8662086bb223aa4eafd0f85e717d16cf (diff)
Merge branch 'master' of https://github.com/lonkaars/crepe into wouter/button-improvement
Diffstat (limited to 'src/crepe/api/ParticleEmitter.h')
-rw-r--r--src/crepe/api/ParticleEmitter.h53
1 files changed, 33 insertions, 20 deletions
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