From 9474767c68c48eff2618df80433b0b81ebf529c6 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Tue, 20 Nov 2018 21:43:01 +0800
Subject: =?UTF-8?q?*=E5=8A=A8=E7=94=BB?=
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---
 src/libjin/graphics/animations/je_animation.cpp | 95 +++++++++++++++++++++++++
 src/libjin/graphics/animations/je_animation.h   | 41 +++++++++--
 2 files changed, 131 insertions(+), 5 deletions(-)

(limited to 'src/libjin/graphics/animations')

diff --git a/src/libjin/graphics/animations/je_animation.cpp b/src/libjin/graphics/animations/je_animation.cpp
index 4fe673a..028ef56 100644
--- a/src/libjin/graphics/animations/je_animation.cpp
+++ b/src/libjin/graphics/animations/je_animation.cpp
@@ -1,5 +1,8 @@
+#include "../../math/je_vector2.hpp"
 #include "je_animation.h"
 
+using namespace JinEngine::Math;
+
 namespace JinEngine
 {
     namespace Graphics
@@ -7,7 +10,99 @@ namespace JinEngine
         namespace Animations
         {
 
+            Animation::Animation()
+                : mIndex(0)
+                , mActive(true)
+                , mLoop(true)
+                , mTick(0)
+            {
+            }
+
+            void Animation::addFrame(const Sprite* frame)
+            {
+                if(frame != nullptr)
+                    mFrames.push_back(frame);
+            }
+
+            void Animation::addFrames(const std::vector<Sprite*>& frames)
+            {
+                mFrames.insert(mFrames.end(), frames.begin(), frames.end());
+            }
+
+            void Animation::update(float dt)
+            {
+                if (!mActive)
+                    return;
+                mTick += dt;
+                if (mTick >= mSpeed)
+                {
+                    mTick -= mSpeed;
+                    next();
+                }
+            }
+
+            void Animation::next()
+            {
+                int count = mFrames.size(); 
+                ++mIndex;
+                if (mLoop)
+                    mIndex %= count;
+                mIndex = clamp<uint>(mIndex, 0, count - 1);
+            }
+
+            void Animation::pause()
+            {
+                mActive = false;
+            }
+
+            void Animation::resume()
+            {
+                mActive = true;
+            }
+
+            void Animation::rewind()
+            {
+                mIndex = 0;
+                mTick = 0;
+            }
+
+            void Animation::setSpeed(float speed)
+            {
+                mSpeed = speed;
+            }
+
+            void Animation::setLoop(bool isLoop)
+            {
+                mLoop = isLoop;
+            }
+
+            uint Animation::getCurrentFrameIndex()
+            {
+                return mIndex;
+            }
+
+            const Sprite* Animation::getCurrentFrame()
+            {
+                if (mIndex >= mFrames.size())
+                    return nullptr;
+                return mFrames[mIndex];
+            }
+
+            void Animation::setCurrentFrame(uint frame)
+            {
+                mIndex = frame;
+            }
 
+            void Animation::render(float x, float y, float sx, float sy, float r)
+            {
+                if (mFrames.size() == 0)
+                    return;
+                if (without<uint>(mIndex, 0, mFrames.size() - 1))
+                    return;
+                const Sprite* spr = getCurrentFrame();
+                if(spr)
+                    spr->render(x, y, sx, sy, r);
+            }
 
         }
     }
diff --git a/src/libjin/graphics/animations/je_animation.h b/src/libjin/graphics/animations/je_animation.h
index a13a83b..4c2fd64 100644
--- a/src/libjin/graphics/animations/je_animation.h
+++ b/src/libjin/graphics/animations/je_animation.h
@@ -19,15 +19,22 @@ namespace JinEngine
             class Animation
             {
             public:
+                Animation();
+                
                 ///
                 ///
                 ///
-                void update(float dt);
+                void addFrame(const Sprite* frame);
+
+                ///
+                ///
+                ///
+                void addFrames(const std::vector<Sprite*>& frames);
 
                 ///
                 ///
                 ///
-                void start();
+                void update(float dt);
 
                 ///
                 ///
@@ -37,7 +44,7 @@ namespace JinEngine
                 ///
                 ///
                 ///
-                void stop();
+                void resume();
 
                 ///
                 /// Force rewind.
@@ -49,6 +56,11 @@ namespace JinEngine
                 ///
                 void setSpeed(float speed);
 
+                ///
+                ///
+                ///
+                void setLoop(bool isLoop);
+
                 ///
                 /// Get current frame index.
                 ///
@@ -57,7 +69,7 @@ namespace JinEngine
                 ///
                 ///
                 ///
-                Sprite* getCurrentFrame();
+                const Sprite* getCurrentFrame();
 
                 /// 
                 /// Set current frame index. 
@@ -71,17 +83,36 @@ namespace JinEngine
                 ///
                 void render(float x, float y, float sx, float sy, float r);
 
+                ///
+                ///
+                ///
+                Animation clone();
+
             private:
+
+                void next();
+
                 ///
                 /// Key frames.
                 ///
-                std::vector<Sprite*> mFrames;
+                std::vector<const Sprite*> mFrames;
 
                 ///
                 /// Animation playing speed.
                 ///
                 float mSpeed;
 
+                ///
+                ///
+                ///
+                float mTick;
+
+                uint mIndex;
+
+                float mLoop;
+                
+                bool mActive;
+
             };
 
         } // namespace Animations
-- 
cgit v1.1-26-g67d0