*动画

1 files changed, 95 insertions, 0 deletions

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);
+            }
 
         }
     }