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Diffstat (limited to 'src/libjin/graphics/particles/particle.h')
| -rw-r--r-- | src/libjin/graphics/particles/particle.h | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/src/libjin/graphics/particles/particle.h b/src/libjin/graphics/particles/particle.h new file mode 100644 index 0000000..081ad26 --- /dev/null +++ b/src/libjin/graphics/particles/particle.h @@ -0,0 +1,222 @@ +#ifndef __JE_PARTICLE_H__ +#define __JE_PARTICLE_H__ + +#include "../../game/gameobject.h" +#include "../../math/ranged_value.h" +#include "../../math/transform.h" +#include "../../math/vector2.hpp" +#include "../../math/percentage.h" + +#include "../color.h" +#include "../sprite.h" + +namespace JinEngine +{ + namespace Graphics + { + namespace Particles + { + + class ParticleEmitter; + + class ScaledRangedValue : public Math::RangedValue + { + public: + ScaledRangedValue() {}; + ScaledRangedValue(Math::Percentage* points, uint n); + void set(Math::Percentage* points, uint n); + + }; + + class GradientColorValue + { + public: + GradientColorValue(); + + void addColor(Color col, Math::Percentage time); + Color getColor(Math::Percentage time); + void insertColor(uint i, Color col, Math::Percentage time); + void removeColor(uint i); + + private: + std::vector<Color> mColors; + std::vector<Math::Percentage> mTimeline; + uint mCount; + + }; + + /// + /// + /// + struct LifeTimeDef + { + bool enableRandom = false; + Struct(life, + struct + { + float floor, ceil; + } random; + float life = 1.0f; + ); + }; + + struct ScaleDef + { + float scale = 1; + Struct(overTime, + bool enable = false; + ScaledRangedValue value; + ); + }; + + struct ColorDef + { + Color color = Color::WHITE; + Struct(overTime, + bool enable = false; + GradientColorValue value; + ); + }; + + struct TransparencyDef + { + Math::Percentage transparency = 1.f; + Struct(overTime, + bool enable = false; + ScaledRangedValue value; + ); + }; + + struct linearAccelarationDef + { + Math::Vector2<float> linearAccelaration; + }; + + struct RadialAccelarationDef + { + float radialAccelaration = 0.f; + }; + + struct AngularSpeedDef + { + bool enableRandom = false; + Struct(angularSpeed, + struct + { + float floor = 0; + float ceil = 0; + } random; + float angularSpeed = 0; + ); + }; + + enum SpriteMode + { + SINGLE = 1, + RANDOM = 2, + ANIMATED = 3, + }; + + struct SpritesDef + { + SpriteMode mode = SpriteMode::SINGLE; + std::vector<const Sprite*> sprites; + }; + + struct BlendDef + { + bool additive = false; + }; + + /// + /// + /// + struct ParticleDef + { + public: + // Basic definitions. + LifeTimeDef lifeTimeDef; ///< + linearAccelarationDef linearAccelarationDef; ///< + RadialAccelarationDef radialAccelarationDef; ///< + AngularSpeedDef angularSpeedDef; ///< + SpritesDef spritesDef; ///< + BlendDef blendDef; ///< + // Optional definitions. + ScaleDef scaleDef; ///< + ColorDef colorDef; ///< + TransparencyDef transparencyDef; ///< + + private: + friend class ParticleEmitter; + + }; + + /// + /// A single particle contains various properties of particle, such as position, accelaration, color + /// and other attributes changed over time. + /// + class Particle : public Renderable, public Game::GameObject + { + public: + enum ParticleUpdateMask + { + NONE = 0, + UPDATE_COLOR = 1 << 0, + UPDATE_SCALE = 1 << 1, + UPDATE_POSITION = 1 << 2, + UPDATE_ROTATION = 1 << 3, + UPDATE_SPRITE = 1 << 4, + UPDATE_VELOCITY = 1 << 5, + }; + + /// + /// Default constructor. + /// + Particle(); + + /// + /// Reset to default. + /// + void reset(); + + /// + /// + /// + void update(float dt); + + /// + /// + /// + void render(); + + // Methods end. + + ParticleDef* def; + + uint updateFlags = ParticleUpdateMask::NONE; + + float lifeTime = 1.0f; + + float life = 0.0f; + + int spriteIndex = 0; + + Color color = Color::WHITE; + + Math::Transform transform; + + Math::Vector2<float> velocity; + Math::Vector2<float> linearAcceleration; + + float angularSpeed; + float radialAcceleration = 0; + + bool alive = true; + + }; + + } // namespace Particles + } // namespace Graphics +} // namespace JinEngine + +#endif
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