1 files changed, 38 insertions, 0 deletions

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+#ifndef INTERPOLATION_H_861230A8
+#define INTERPOLATION_H_861230A8
+
+class Interpolation {
+public:
+
+  void start(int length) {
+    length_ = length;
+    thus_ = 0;
+  }
+
+  void tick(double dt) {
+    if (thus_ < length_) {
+      thus_ += dt;
+      if (thus_ >= length_) {
+        thus_ = length_;
+      }
+    }
+  }
+
+  // Info
+
+  double getProgress(double from, double to) const {
+    return (to - from) / length_ * thus_ + from;
+  }
+
+  bool isComplete() const { return thus_ == length_; }
+
+private:
+
+  double progress_ = 0.0;
+  double dest_ = 0.0;
+  double start_ = 0.0;
+  double length_ = 0.0;
+  double thus_ = 0.0;
+};
+
+#endif /* end of include guard: INTERPOLATION_H_861230A8 */