*粒子系统

20 files changed, 387 insertions, 169 deletions

diff --git a/build/vc++/jin.vcxproj b/build/vc++/jin.vcxproj
index a12378b..01b3a9a 100644
--- a/build/vc++/jin.vcxproj
+++ b/build/vc++/jin.vcxproj
@@ -145,31 +145,33 @@
   <ItemGroup>
     <ClCompile Include="..\..\src\lua\jin.cpp" />
     <ClCompile Include="..\..\src\lua\main.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\audio\audio.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\audio\source.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\bit\bit.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\core\core.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\event\event.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\filesystem\filesystem.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\graphics\bitmap.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\graphics\canvas.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\graphics\text.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\graphics\texture_font.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\graphics\ttf.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\graphics\ttfData.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\graphics\graphics.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\graphics\page.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\graphics\texture.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\graphics\shader.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\joypad\joypad.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\keyboard\keyboard.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\math\math.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\mouse\mouse.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\net\buffer.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\net\net.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\net\socket.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\thread\thread.cpp" />
-    <ClCompile Include="..\..\src\lua\modules\time\time.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\audio\je_lua_audio.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\audio\je_lua_source.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\bit\je_lua_bit.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\core\je_lua_core.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\event\je_lua_event.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\filesystem\je_lua_filesystem.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_bitmap.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_canvas.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_particle_system.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_sprite.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_text.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_texture_font.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_ttf.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_ttf_data.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_graphics.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_page.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_texture.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_shader.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\joypad\je_lua_joypad.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\keyboard\je_lua_keyboard.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\math\je_lua_math.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\mouse\je_lua_mouse.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\net\je_lua_buffer.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\net\je_lua_net.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\net\je_lua_socket.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\thread\je_lua_thread.cpp" />
+    <ClCompile Include="..\..\src\lua\modules\time\je_lua_time.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\src\lua\common\common.h" />
@@ -188,8 +190,8 @@
     <ClInclude Include="..\..\src\lua\libraries\luax\luax.h" />
     <ClInclude Include="..\..\src\lua\luax.h" />
     <ClInclude Include="..\..\src\lua\modules\luax.h" />
-    <ClInclude Include="..\..\src\lua\modules\net\buffer.h" />
-    <ClInclude Include="..\..\src\lua\modules\thread\thread.h" />
+    <ClInclude Include="..\..\src\lua\modules\net\je_lua_buffer.h" />
+    <ClInclude Include="..\..\src\lua\modules\thread\je_lua_thread.h" />
     <ClInclude Include="..\..\src\lua\modules\types.h" />
     <ClInclude Include="..\..\src\lua\resources\font.ttf.h" />
     <ClInclude Include="resource.h" />
diff --git a/build/vc++/jin.vcxproj.filters b/build/vc++/jin.vcxproj.filters
index 1a17f85..ba41a45 100644
--- a/build/vc++/jin.vcxproj.filters
+++ b/build/vc++/jin.vcxproj.filters
@@ -66,87 +66,93 @@
     </Filter>
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="..\..\src\lua\modules\audio\audio.cpp">
+    <ClCompile Include="..\..\src\lua\jin.cpp">
+      <Filter>src</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\main.cpp">
+      <Filter>src</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_sprite.cpp">
+      <Filter>src\modules\graphics</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_graphics.cpp">
+      <Filter>src\modules\graphics</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_page.cpp">
+      <Filter>src\modules\graphics</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_shader.cpp">
+      <Filter>src\modules\graphics</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_text.cpp">
+      <Filter>src\modules\graphics</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_texture.cpp">
+      <Filter>src\modules\graphics</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_texture_font.cpp">
+      <Filter>src\modules\graphics</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_ttf.cpp">
+      <Filter>src\modules\graphics</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_ttf_data.cpp">
+      <Filter>src\modules\graphics</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_canvas.cpp">
+      <Filter>src\modules\graphics</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_bitmap.cpp">
+      <Filter>src\modules\graphics</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\audio\je_lua_audio.cpp">
       <Filter>src\modules\audio</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\audio\source.cpp">
+    <ClCompile Include="..\..\src\lua\modules\audio\je_lua_source.cpp">
       <Filter>src\modules\audio</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\bit\bit.cpp">
+    <ClCompile Include="..\..\src\lua\modules\bit\je_lua_bit.cpp">
       <Filter>src\modules\bit</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\core\core.cpp">
+    <ClCompile Include="..\..\src\lua\modules\core\je_lua_core.cpp">
       <Filter>src\modules\core</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\event\event.cpp">
+    <ClCompile Include="..\..\src\lua\modules\event\je_lua_event.cpp">
       <Filter>src\modules\event</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\filesystem\filesystem.cpp">
+    <ClCompile Include="..\..\src\lua\modules\filesystem\je_lua_filesystem.cpp">
       <Filter>src\modules\filesystem</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\graphics\canvas.cpp">
-      <Filter>src\modules\graphics</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\graphics\graphics.cpp">
-      <Filter>src\modules\graphics</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\joypad\joypad.cpp">
+    <ClCompile Include="..\..\src\lua\modules\joypad\je_lua_joypad.cpp">
       <Filter>src\modules\joypad</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\keyboard\keyboard.cpp">
+    <ClCompile Include="..\..\src\lua\modules\keyboard\je_lua_keyboard.cpp">
       <Filter>src\modules\keyboard</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\math\math.cpp">
+    <ClCompile Include="..\..\src\lua\modules\math\je_lua_math.cpp">
       <Filter>src\modules\math</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\mouse\mouse.cpp">
+    <ClCompile Include="..\..\src\lua\modules\mouse\je_lua_mouse.cpp">
       <Filter>src\modules\mouse</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\net\net.cpp">
+    <ClCompile Include="..\..\src\lua\modules\net\je_lua_buffer.cpp">
+      <Filter>src\modules\net</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\lua\modules\net\je_lua_net.cpp">
       <Filter>src\modules\net</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\net\socket.cpp">
+    <ClCompile Include="..\..\src\lua\modules\net\je_lua_socket.cpp">
       <Filter>src\modules\net</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\thread\thread.cpp">
+    <ClCompile Include="..\..\src\lua\modules\thread\je_lua_thread.cpp">
       <Filter>src\modules\thread</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\time\time.cpp">
+    <ClCompile Include="..\..\src\lua\modules\time\je_lua_time.cpp">
       <Filter>src\modules\time</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\graphics\texture.cpp">
-      <Filter>src\modules\graphics</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\graphics\bitmap.cpp">
-      <Filter>src\modules\graphics</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\graphics\shader.cpp">
-      <Filter>src\modules\graphics</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\src\lua\jin.cpp">
-      <Filter>src</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\src\lua\main.cpp">
-      <Filter>src</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\graphics\page.cpp">
-      <Filter>src\modules\graphics</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\graphics\ttfData.cpp">
-      <Filter>src\modules\graphics</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\graphics\ttf.cpp">
+    <ClCompile Include="..\..\src\lua\modules\graphics\je_lua_particle_system.cpp">
       <Filter>src\modules\graphics</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\graphics\text.cpp">
-      <Filter>src\modules\graphics</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\graphics\texture_font.cpp">
-      <Filter>src\modules\graphics</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\src\lua\modules\net\buffer.cpp">
-      <Filter>src\modules\net</Filter>
-    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="resource.h">
@@ -170,12 +176,6 @@
     <ClInclude Include="..\..\src\lua\resources\font.ttf.h">
       <Filter>src\resources</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\src\lua\modules\types.h">
-      <Filter>src\modules</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\src\lua\modules\thread\thread.h">
-      <Filter>src\modules\thread</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\src\lua\common\error.h">
       <Filter>src\common</Filter>
     </ClInclude>
@@ -209,9 +209,15 @@
     <ClInclude Include="..\..\src\lua\luax.h">
       <Filter>src</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\src\lua\modules\net\buffer.h">
+    <ClInclude Include="..\..\src\lua\modules\net\je_lua_buffer.h">
       <Filter>src\modules\net</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\src\lua\modules\thread\je_lua_thread.h">
+      <Filter>src\modules\thread</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\lua\modules\types.h">
+      <Filter>src\modules</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="jin.rc">
diff --git a/build/vc++/libjin/libjin.vcxproj b/build/vc++/libjin/libjin.vcxproj
index 3a9deae..e7efdd7 100644
--- a/build/vc++/libjin/libjin.vcxproj
+++ b/build/vc++/libjin/libjin.vcxproj
@@ -182,8 +182,8 @@
     <ClInclude Include="..\..\..\src\libjin\Graphics\je_gl.h" />
     <ClInclude Include="..\..\..\src\libjin\graphics\je_sprite_batch.h" />
     <ClInclude Include="..\..\..\src\libjin\graphics\particle\je_particle.h" />
-    <ClInclude Include="..\..\..\src\libjin\graphics\particle\je_particle_batch.h" />
-    <ClInclude Include="..\..\..\src\libjin\graphics\particle\je_particle_emitter.h" />
+    <ClInclude Include="..\..\..\src\libjin\Graphics\particle\je_particle_pool.h" />
+    <ClInclude Include="..\..\..\src\libjin\Graphics\particle\je_particle_emitter.h" />
     <ClInclude Include="..\..\..\src\libjin\graphics\particle\je_particle_system.h" />
     <ClInclude Include="..\..\..\src\libjin\Graphics\Shader\je_base.shader.h" />
     <ClInclude Include="..\..\..\src\libjin\Graphics\Shader\je_default.shader.h" />
@@ -256,8 +256,8 @@
     <ClCompile Include="..\..\..\src\libjin\Graphics\je_gl.cpp" />
     <ClCompile Include="..\..\..\src\libjin\graphics\je_sprite_batch.cpp" />
     <ClCompile Include="..\..\..\src\libjin\graphics\particle\je_particle.cpp" />
-    <ClCompile Include="..\..\..\src\libjin\graphics\particle\je_particle_batch.cpp" />
-    <ClCompile Include="..\..\..\src\libjin\graphics\particle\je_particle_emitter.cpp" />
+    <ClCompile Include="..\..\..\src\libjin\graphics\particle\je_particle_pool.cpp" />
+    <ClCompile Include="..\..\..\src\libjin\Graphics\particle\je_particle_emitter.cpp" />
     <ClCompile Include="..\..\..\src\libjin\graphics\particle\je_particle_system.cpp" />
     <ClCompile Include="..\..\..\src\libjin\Graphics\Shader\je_shader.cpp" />
     <ClCompile Include="..\..\..\src\libjin\Graphics\je_shapes.cpp" />
diff --git a/build/vc++/libjin/libjin.vcxproj.filters b/build/vc++/libjin/libjin.vcxproj.filters
index bddf3cb..9c35e9d 100644
--- a/build/vc++/libjin/libjin.vcxproj.filters
+++ b/build/vc++/libjin/libjin.vcxproj.filters
@@ -306,18 +306,9 @@
     <ClInclude Include="..\..\..\src\libjin\graphics\je_sprite_batch.h">
       <Filter>source\graphics</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\..\src\libjin\graphics\particle\je_particle_emitter.h">
-      <Filter>source\graphics\particle</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\..\src\libjin\graphics\particle\je_particle.h">
       <Filter>source\graphics\particle</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\..\src\libjin\graphics\particle\je_particle_batch.h">
-      <Filter>source\graphics\particle</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\..\src\libjin\graphics\particle\je_particle_system.h">
-      <Filter>source\graphics\particle</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\..\src\libjin\ai\je_behavior_tree.h">
       <Filter>source\ai</Filter>
     </ClInclude>
@@ -345,6 +336,15 @@
     <ClInclude Include="..\..\..\src\libjin\Graphics\je_graphic.h">
       <Filter>source\graphics</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\src\libjin\graphics\particle\je_particle_system.h">
+      <Filter>source\graphics\particle</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\src\libjin\Graphics\particle\je_particle_emitter.h">
+      <Filter>source\graphics\particle</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\src\libjin\Graphics\particle\je_particle_pool.h">
+      <Filter>source\graphics\particle</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\..\src\libjin\README.md">
@@ -481,18 +481,9 @@
     <ClCompile Include="..\..\..\src\libjin\graphics\je_sprite_batch.cpp">
       <Filter>source\graphics</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\..\src\libjin\graphics\particle\je_particle_system.cpp">
-      <Filter>source\graphics\particle</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\libjin\graphics\particle\je_particle_emitter.cpp">
-      <Filter>source\graphics\particle</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\src\libjin\graphics\particle\je_particle.cpp">
       <Filter>source\graphics\particle</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\..\src\libjin\graphics\particle\je_particle_batch.cpp">
-      <Filter>source\graphics\particle</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\src\libjin\ai\je_behavior_tree.cpp">
       <Filter>source\ai</Filter>
     </ClCompile>
@@ -514,5 +505,14 @@
     <ClCompile Include="..\..\..\src\libjin\Graphics\je_graphic.cpp">
       <Filter>source\graphics</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\libjin\graphics\particle\je_particle_system.cpp">
+      <Filter>source\graphics\particle</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\libjin\Graphics\particle\je_particle_emitter.cpp">
+      <Filter>source\graphics\particle</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\libjin\graphics\particle\je_particle_pool.cpp">
+      <Filter>source\graphics\particle</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/libjin/Common/je_temporary.h b/src/libjin/Common/je_temporary.h
index 5af8704..9a127da 100644
--- a/src/libjin/Common/je_temporary.h
+++ b/src/libjin/Common/je_temporary.h
@@ -1,5 +1,5 @@
-#ifndef __JE_ON_STACK_H
-#define __JE_ON_STACK_H
+#ifndef __JE_TEMPORARY_H
+#define __JE_TEMPORARY_H
 
 namespace JinEngine
 {
diff --git a/src/libjin/Graphics/animation/je_animation.h b/src/libjin/Graphics/animation/je_animation.h
index b3bb9fb..ca5758f 100644
--- a/src/libjin/Graphics/animation/je_animation.h
+++ b/src/libjin/Graphics/animation/je_animation.h
@@ -23,7 +23,6 @@ namespace JinEngine
 
             void play();
             void switchClipByKey(const std::string& key);
-            void switchClipByName(const std::string& name);
             void switchClip(const Clip* clip);
 
             ///
diff --git a/src/libjin/Graphics/animation/je_clip.h b/src/libjin/Graphics/animation/je_clip.h
index cfa579f..eedffc0 100644
--- a/src/libjin/Graphics/animation/je_clip.h
+++ b/src/libjin/Graphics/animation/je_clip.h
@@ -25,7 +25,7 @@ namespace JinEngine
 
         private:
             ///
-            /// Frames
+            /// Key frames.
             ///
             std::vector<Sprite*> mFrames;
 
diff --git a/src/libjin/Graphics/je_color.h b/src/libjin/Graphics/je_color.h
index 8fe7691..10d2818 100644
--- a/src/libjin/Graphics/je_color.h
+++ b/src/libjin/Graphics/je_color.h
@@ -6,6 +6,8 @@
 #include "../core/je_configuration.h"
 #if defined(jin_graphics)
 
+#include "../math/je_math.h"
+
 #include "../common/je_types.h"
 #include "../utils/je_endian.h"
 
@@ -28,6 +30,25 @@ namespace JinEngine
 			static const Color MAGENTA;
 			static const Color YELLOW;
 
+            ///
+            /// Get lerp color with given factor.
+            ///
+            /// @param start Start color. 
+            /// @param end End color. 
+            /// @param t Factor of interplation.
+            /// @return Color after interplation.
+            ///
+            static Color lerp(Color start, Color end, float t)
+            {
+                t = Math::clamp<float>(t, 0, 1);
+                Color c;
+                c.r = Math::lerp(start.r, end.r, t);
+                c.g = Math::lerp(start.g, end.g, t);
+                c.b = Math::lerp(start.b, end.b, t);
+                c.a = Math::lerp(start.a, end.a, t);
+                return c;
+            }
+
             /// 
             /// 
             /// 
diff --git a/src/libjin/Graphics/je_graphic.h b/src/libjin/Graphics/je_graphic.h
index 5d5b2a5..d18575e 100644
--- a/src/libjin/Graphics/je_graphic.h
+++ b/src/libjin/Graphics/je_graphic.h
@@ -49,7 +49,7 @@ namespace JinEngine
 			/// 
 			/// 
 			/// 
-            void render(const Math::Quad& slice, int x, int y, float sx = 1, float sy = 1, float r = 0, float ax = 0, float ay = 0);
+            void render(const Math::Quad& slice, int x, int y, float sx = 1, float sy = 1, float r = 0, float ox = 0, float oy = 0);
 
 			/// 
 			/// 
diff --git a/src/libjin/Graphics/je_sprite_batch.h b/src/libjin/Graphics/je_sprite_batch.h
index 85a7951..359ce24 100644
--- a/src/libjin/Graphics/je_sprite_batch.h
+++ b/src/libjin/Graphics/je_sprite_batch.h
@@ -6,6 +6,9 @@ namespace JinEngine
     namespace Graphics
     {
 
+        ///
+        /// For reducing draw call.
+        ///
         class SpriteBatch
         {
 
diff --git a/src/libjin/Graphics/particle/je_particle.h b/src/libjin/Graphics/particle/je_particle.h
index d32d9fe..474e15b 100644
--- a/src/libjin/Graphics/particle/je_particle.h
+++ b/src/libjin/Graphics/particle/je_particle.h
@@ -8,33 +8,61 @@ namespace JinEngine
     namespace Graphics
     {
 
+        class ParticleSystem;
+
         ///
-        /// Single particle. Grab from love2d.
+        /// A single particle contains various properties of particle, such as position, accelaration, color and 
+        /// other attributes changed over time.
         ///
-        class Particle
+        struct Particle
         {
-        public:
+            ///
+            /// Whole life time.
+            ///
+            float lifeTime = 0.0f;
+
+            ///
+            /// Current life time.
+            ///
+            float life = 0.0f;
+
+            ///
+            /// Current position.
+            ///
+            float position[2] = {0,0};
+
+            ///
+            /// Emitte direction.
+            /// 
+            float direction = 0; 
+
+            Math::Vector2<float> speed; 
+            Math::Vector2<float> linearAcceleration;
+            float radialAcceleration = 0; 
+            float tangetialAcceleration = 0;
 
-        private:
-            float mLifeTime;
-            float mLife;
-            float mPosition[2];
-            float mDirection; 
+            ///
+            /// Size over lifetime.
+            ///
+            float size = 1; 
+            float sizeBegin = 1; 
+            float sizeEnd = 1;
 
-            Math::Vector2<float> mSpeed; 
-            float mGravity; 
-            float mRadialAcceleration; 
-            float mTangetialAcceleration;
+            float rotation = 0;
+            float angle = 0;
 
-            float mSize; 
-            float mSizeStart;
-            float mSizeEnd; 
+            ///
+            /// Color over lifetime.
+            ///
+            Color color = Color::WHITE;
+            Color colorStart = Color::WHITE;
+            Color colorEnd = Color::WHITE;
 
-            float mRotation; 
-            float mSpinStart; 
-            float mSpinEnd; 
+            ///
+            /// Is particle still alive? Alive is equivalent to NOT available in particle pool.
+            ///
+            bool alive = false;
 
-            float color[4];
         };
 
     } // namespace Graphics
diff --git a/src/libjin/Graphics/particle/je_particle_batch.h b/src/libjin/Graphics/particle/je_particle_batch.h
deleted file mode 100644
index 19f4ded..0000000
--- a/src/libjin/Graphics/particle/je_particle_batch.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef __JE_PARTICLE_BATCH_H
-#define __JE_PARTICLE_BATCH_H
-
-namespace JinEngine
-{
-    namespace Graphics
-    {
-
-        ///
-        ///
-        ///
-        class ParticleBatch
-        {
-
-        };
-
-    } // namespace Graphics
-} // namespace JinEngine
-
-#endif
\ No newline at end of file
diff --git a/src/libjin/Graphics/particle/je_particle_emitter.cpp b/src/libjin/Graphics/particle/je_particle_emitter.cpp
index d57d5ed..e69de29 100644
--- a/src/libjin/Graphics/particle/je_particle_emitter.cpp
+++ b/src/libjin/Graphics/particle/je_particle_emitter.cpp
@@ -1,11 +0,0 @@
-#include "je_particle_emitter.h"
-
-namespace JinEngine
-{
-    namespace Graphics
-    {
-
-
-
-    }
-}
diff --git a/src/libjin/Graphics/particle/je_particle_emitter.h b/src/libjin/Graphics/particle/je_particle_emitter.h
index e191e36..95b7875 100644
--- a/src/libjin/Graphics/particle/je_particle_emitter.h
+++ b/src/libjin/Graphics/particle/je_particle_emitter.h
@@ -1,5 +1,10 @@
-#ifndef __JE_PARTICLE_EMMITTER_H
-#define __JE_PARTICLE_EMMITTER_H
+#ifndef __JE_PARTICLE_EMITTER_H
+#define __JE_PARTICLE_EMITTER_H
+
+#include "../../common/je_temporary.h"
+#include "../../math/je_vector2.hpp"
+
+#include "je_particle.h"
 
 namespace JinEngine
 {
@@ -7,17 +12,37 @@ namespace JinEngine
     {
 
         ///
-        /// Particle emitter
+        /// Definition of particle emitter.
         ///
+        struct ParticleEmitterDef : public Temporary
+        {
+            Math::Vector2<float> position; 
+
+        };
+
         class ParticleEmitter
         {
         public:
+            ParticleEmitter(const ParticleEmitterDef& def);
+
+            ///
+            /// Create new particle.
+            ///
+            Particle* emit();
+
+            ///
+            /// Emitter position.
+            ///
+            Math::Vector2<float> mPosition;
 
-        private:
+            ///
+            ///
+            ///
+            float mDirection;
 
         };
 
-    }
-}
+    } // namespace Graphics
+} // namespace JinEngine
 
 #endif
\ No newline at end of file
diff --git a/src/libjin/Graphics/particle/je_particle_batch.cpp b/src/libjin/Graphics/particle/je_particle_pool.cpp
index e69de29..e69de29 100644
--- a/src/libjin/Graphics/particle/je_particle_batch.cpp
+++ b/src/libjin/Graphics/particle/je_particle_pool.cpp
diff --git a/src/libjin/Graphics/particle/je_particle_pool.h b/src/libjin/Graphics/particle/je_particle_pool.h
new file mode 100644
index 0000000..f1f6214
--- /dev/null
+++ b/src/libjin/Graphics/particle/je_particle_pool.h
@@ -0,0 +1,53 @@
+#ifndef __JE_PARTICLE_BATCH_H
+#define __JE_PARTICLE_BATCH_H
+
+#include <list>
+
+#include "je_particle.h"
+
+namespace JinEngine
+{
+    namespace Graphics
+    {
+
+        ///
+        /// Particle pool for reducing memory fragmentation.
+        ///
+        class ParticlePool
+        {
+        public:
+
+            ///
+            /// Particle pool constructor. 
+            /// 
+            /// @param count Max count of particles.
+            ///
+            ParticlePool(uint count);
+
+            ///
+            /// Particle pool destructor.
+            ///
+            ~ParticlePool();
+
+            ///
+            /// Claim a particle if available.
+            ///
+            Particle* claim();
+
+            ///
+            /// Recycle particle if the particle is no more alive.
+            ///
+            void recycle(Particle* particle);
+
+        private:
+            ///
+            /// All particles include available and inavailable particles.
+            ///
+            std::list<Particle> particles;
+
+        };
+
+    } // namespace Graphics
+} // namespace JinEngine
+
+#endif
\ No newline at end of file
diff --git a/src/libjin/Graphics/particle/je_particle_system.cpp b/src/libjin/Graphics/particle/je_particle_system.cpp
index 6f70f09..68f8f21 100644
--- a/src/libjin/Graphics/particle/je_particle_system.cpp
+++ b/src/libjin/Graphics/particle/je_particle_system.cpp
@@ -1 +1,11 @@
-#pragma once
+#include "je_particle_system.h"
+
+namespace JinEngine
+{
+    namespace Graphics
+    {
+
+
+
+    }
+}
diff --git a/src/libjin/Graphics/particle/je_particle_system.h b/src/libjin/Graphics/particle/je_particle_system.h
index e69de29..c5db938 100644
--- a/src/libjin/Graphics/particle/je_particle_system.h
+++ b/src/libjin/Graphics/particle/je_particle_system.h
@@ -0,0 +1,85 @@
+#ifndef __JE_PARTICLE_EMMITTER_H
+#define __JE_PARTICLE_EMMITTER_H
+
+#include <vector>
+
+#include "../../common/je_temporary.h"
+
+#include "../je_sprite.h"
+
+#include "je_particle_emitter.h"
+#include "je_particle_pool.h"
+#include "je_particle.h"
+
+namespace JinEngine
+{
+    namespace Graphics
+    {
+
+        ///
+        /// Definition of particle system.
+        ///
+        struct ParticleSystemDef : public Temporary
+        {
+            uint maxParticleCount = 1; ///< Max count of particles. 1 by default.
+
+        };
+
+        ///
+        /// Particle emitter, handle all particles it emitts.
+        ///
+        class ParticleSystem
+        {
+        public:
+            ///
+            /// Particle system constructor 
+            /// 
+            /// @param def Definition of particle system.
+            ///
+            ParticleSystem(const ParticleSystemDef& def);
+
+            ///
+            /// Particle system destructor.
+            ///
+            ~ParticleSystem();
+
+            ///
+            /// Render particle system's all particles.
+            ///
+            void render(int x, int y, float sx = 1, float sy = 1, float r = 0, float ax = 0, float ay = 0);
+
+            ///
+            /// Set sprite to render. 
+            /// 
+            /// @param sprite Sprite to render.
+            ///
+            void setSprite(Sprite* sprite);
+
+            /// 
+            /// Release particle and make it available in particle pool.
+            /// 
+            void releaseParticle();
+
+        private:
+            ///
+            /// Sprite to be drawn.
+            ///
+            Sprite* mSprite;
+
+            ///
+            /// Particle emitter.
+            ///
+            ParticleEmitter mEmitter;
+            ParticlePool mParticlePool;
+            
+            ///
+            /// Alive particles, that means these particles could join to the life cycle loop.
+            ///
+            std::vector<Particle*> mAliveParticles;
+
+        };
+
+    } // namespace Graphics
+} // namespace JinEngine 
+
+#endif
\ No newline at end of file
diff --git a/src/libjin/Math/je_math.h b/src/libjin/Math/je_math.h
index 1f8e0b3..e7c3ec5 100644
--- a/src/libjin/Math/je_math.h
+++ b/src/libjin/Math/je_math.h
@@ -71,6 +71,12 @@ namespace JinEngine
 			return a + t * (b - a);
 		}
 
+        float lerp(float a, float b, float f)
+        {
+            f = clamp<float>(f, 0, 1);
+            return a + f * (b - a);
+        }
+
 	} // namespace Math
 } // namespace JinEngine
 
diff --git a/src/lua/modules/graphics/je_lua_particle_system.cpp b/src/lua/modules/graphics/je_lua_particle_system.cpp
new file mode 100644
index 0000000..7099a5c
--- /dev/null
+++ b/src/lua/modules/graphics/je_lua_particle_system.cpp
@@ -0,0 +1,11 @@
+#include "libjin/jin.h"
+
+namespace JinEngine
+{
+    namespace Lua
+    {
+
+
+
+    } // Lua
+} // namespace JinEngine 
\ No newline at end of file