From fc7b4579e49aaeecc81919e247e03f68bd5abfd4 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Sun, 18 Nov 2018 22:32:55 +0800
Subject: =?UTF-8?q?*=E7=B2=92=E5=AD=90=E7=B3=BB=E7=BB=9F?=
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---
 .../Graphics/particles/je_particle_system.cpp      | 58 +++++++++++++++++++++-
 1 file changed, 57 insertions(+), 1 deletion(-)

(limited to 'src/libjin/Graphics/particles/je_particle_system.cpp')

diff --git a/src/libjin/Graphics/particles/je_particle_system.cpp b/src/libjin/Graphics/particles/je_particle_system.cpp
index 68f8f21..a81a3c9 100644
--- a/src/libjin/Graphics/particles/je_particle_system.cpp
+++ b/src/libjin/Graphics/particles/je_particle_system.cpp
@@ -4,8 +4,64 @@ namespace JinEngine
 {
     namespace Graphics
     {
+        namespace Particles
+        {
 
+            ParticleSystem::ParticleSystem(const ParticleSystemDef& def)
+                : mDef(def)
+                , mEmitter(*this)
+                , mParticlePool(def.maxParticleCount, sizeof(Particle))
+            {
+            }
 
+            ParticleSystem::~ParticleSystem()
+            {
+            }
 
+            void ParticleSystem::update(float dt)
+            {
+                mEmitter.update(dt);
+                for (int i = 0; i < mAliveParticles.size(); ++i)
+                {
+                    Particle* p = mAliveParticles[i];
+                    if (p->alive == false)
+                    {
+                        recycle(i, p);
+                        --i;
+                    }
+                    else
+                    {
+                        p->update(dt);
+                    }
+                }
+            }
+
+            void ParticleSystem::render(float x, float y, float sx /* = 1 */, float sy /* = 1 */, float r /* = 0 */, float ax /* = 0 */, float ay /* = 0 */)
+            {
+                for (Particle* p : mAliveParticles)
+                    p->render();
+            }
+
+            void ParticleSystem::setGraphic(const Graphic* graphic)
+            {
+                mGraphic = graphic;
+            }
+
+            Particle* ParticleSystem::claim()
+            {
+                Particle* p = new (mParticlePool.GetNextWithoutInitializing()) Particle(mGraphic);
+                mAliveParticles.push_back(p);
+                return p;
+            }
+
+            void ParticleSystem::recycle(int i, Particle* p)
+            {
+                if (i >= mAliveParticles.size())
+                    return;
+                mAliveParticles.erase(mAliveParticles.begin() + i);
+                mParticlePool.Delete(p);
+            }
+
+        }
     }
-}
+}
\ No newline at end of file
-- 
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