*合并master到minimal分支

1 files changed, 178 insertions, 0 deletions

diff --git a/src/libjin/Graphics/particles/je_particle.h b/src/libjin/Graphics/particles/je_particle.h
new file mode 100644
index 0000000..2d112d1
--- /dev/null
+++ b/src/libjin/Graphics/particles/je_particle.h
@@ -0,0 +1,178 @@
+#ifndef __JE_PARTICLE_H__
+#define __JE_PARTICLE_H__
+
+#include "../../math/je_vector2.hpp"
+#include "../je_color.h"
+
+namespace JinEngine
+{
+    namespace Graphics
+    {
+        namespace Particles
+        {
+
+            class ParticleEmitter;
+
+            ///
+            ///
+            ///
+            struct LifeTimeDef
+            {
+                bool enableRandom = false;
+                union
+                {
+                    struct
+                    {
+                        float min, max;
+                    } random;
+                    float life;
+                } life;
+            };
+
+            ///
+            ///
+            ///
+            struct SpeedOverTimeDef
+            {
+                bool enable = false;
+                bool enableRandom = false;
+                union
+                {
+                    struct
+                    {
+                        Math::Vector2<float> startFloor;
+                        Math::Vector2<float> startCeil;
+                        Math::Vector2<float> endFloor;
+                        Math::Vector2<float> endCeil;
+                    } random;
+                    struct
+                    {
+                        Math::Vector2<float> start;
+                        Math::Vector2<float> end;
+                    } speed;
+                } speed;
+            };
+
+            struct SizeOverTimeDef
+            {
+                bool enable = false;
+                bool enableRandom = false;
+                union {
+                    struct {
+                        float startFloor = 1;
+                        float startCeil = 1;
+                        float endFloor = 1;
+                        float endCeil = 1;
+                    } random;
+                    struct {
+                        float start = 1;
+                        float end = 1;
+                    } size;
+                } size;
+            };
+
+            struct ColorOverTimeDef
+            {
+                bool enable = false;
+                Color colorStart = Color::WHITE;
+                Color colorEnd = Color::WHITE;
+            };
+
+            struct linearAccelarationDef
+            {
+                Math::Vector2<float> linearAccelaration;
+            };
+
+            struct RadialAccelarationDef
+            {
+                float radialAccelaration;
+            };
+
+            ///
+            ///
+            ///
+            struct ParticleDef
+            {
+            private:
+                friend class ParticleEmitter;
+
+            public:
+                // Basic definitions.
+                LifeTimeDef lifeTimeDef;                     ///< 
+                linearAccelarationDef linearAccelarationDef; ///<
+                RadialAccelarationDef radialAccelarationDef; ///< 
+                // Optional definitions.
+                SpeedOverTimeDef speedOverTimeDef;           ///< 
+                SizeOverTimeDef sizeOverTimeDef;             ///< 
+                ColorOverTimeDef colorOverTimeDef;           ///< 
+            };
+
+            ///
+            /// A single particle contains various properties of particle, such as position, accelaration, color and 
+            /// other attributes changed over time.
+            ///
+            struct Particle
+            {
+                ///
+                /// Default constructor.
+                ///
+                Particle() {};
+                
+                ///
+                /// Reset to default.
+                ///
+                void reset();
+
+                ///
+                /// Whole life time.
+                ///
+                float lifeTime = 0.0f;
+
+                ///
+                /// Current life time.
+                ///
+                float life = 0.0f;
+
+                ///
+                /// Current position.
+                ///
+                Math::Vector2<float> position;
+
+                ///
+                /// Emitte direction.
+                /// 
+                float direction = 0;
+
+                Math::Vector2<float> speed;
+                Math::Vector2<float> linearAcceleration;
+                float radialAcceleration = 0;
+
+                ///
+                /// Size over lifetime.
+                ///
+                float size = 1;
+                float sizeBegin = 1;
+                float sizeEnd = 1;
+
+                float rotation = 0;
+                float angle = 0;
+
+                ///
+                /// Color over lifetime.
+                ///
+                Color color = Color::WHITE;
+                Color colorStart = Color::WHITE;
+                Color colorEnd = Color::WHITE;
+
+                ///
+                /// Is particle still alive? Alive is equivalent to NOT available in particle pool.
+                ///
+                bool alive = true;
+
+            };
+
+        } // namespace Particles
+    } // namespace Graphics
+} // namespace JinEngine
+
+#endif
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