diff options
author | Loek Le Blansch <loek@pipeframe.xyz> | 2024-12-17 14:25:47 +0100 |
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committer | Loek Le Blansch <loek@pipeframe.xyz> | 2024-12-17 14:25:47 +0100 |
commit | bec22107c6754f5f3440d79503ddbc828d7e0cba (patch) | |
tree | 074567b1b2071117b369ff9ec208655655e334b4 /src/crepe/api/ParticleEmitter.h | |
parent | 4d4d791a329c0ca4f0496fd8cb1656a1dab66e47 (diff) | |
parent | c96ef5f62a1369d66e8eba9bf8ed192e3cf8e716 (diff) |
merge master
Diffstat (limited to 'src/crepe/api/ParticleEmitter.h')
-rw-r--r-- | src/crepe/api/ParticleEmitter.h | 53 |
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 |