From f0f340dec7821cee103ab9267ef941a917ef4dc4 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Sun, 18 Nov 2018 23:31:17 +0800
Subject: =?UTF-8?q?*=E7=9B=AE=E5=BD=95=E6=94=B9=E4=B8=BA=E5=B0=8F=E5=86=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../graphics/particles/je_particle_system.cpp      | 67 ++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 src/libjin/graphics/particles/je_particle_system.cpp

(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
new file mode 100644
index 0000000..a81a3c9
--- /dev/null
+++ b/src/libjin/graphics/particles/je_particle_system.cpp
@@ -0,0 +1,67 @@
+#include "je_particle_system.h"
+
+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
-- 
cgit v1.1-26-g67d0