1 files changed, 16 insertions, 0 deletions

@@ -37,6 +37,15 @@ void EffectSystem::tick(double dt) {
       cameraShakeOffset_.y() = 0;
     }
   }
+
+  if (circleEffect_ != circleEffectDest_) {
+    circleEffectThus_ += dt;
+    if (circleEffectThus_ >= circleEffectLength_) {
+      circleEffectThus_ = circleEffectLength_;
+    }
+
+    circleEffect_ = (circleEffectDest_ - circleEffectStart_) / circleEffectLength_ * circleEffectThus_ + circleEffectStart_;
+  }
 }
 
 void EffectSystem::fadeScreen(int length, double amount) {
@@ -64,3 +73,10 @@ void EffectSystem::stopShakingCamera() {
   cameraShaking_ = false;
   cameraShakeOffset_ = { 0, 0 };
 }
+
+void EffectSystem::circleTransition(int length, double amount) {
+  circleEffectStart_ = circleEffect_;
+  circleEffectDest_ = amount;
+  circleEffectLength_ = length;
+  circleEffectThus_ = 0;
+}