--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Orchestland/Assets/Scripts/TempoCheck.cs	Fri Jul 17 23:09:20 2015 +0900
@@ -0,0 +1,51 @@
+using UnityEngine;
+using System.Collections;
+
+public class TempoCheck : MonoBehaviour {
+	public int maxAverageValue = 8;
+	public float defaultBPM = 120f;
+
+	float time_old = 0;
+	float[] tempo_ary;
+	int ary_num = 0;
+	float tempo_average = 120f;
+	// Use this for initialization
+	void Start () {
+		tempo_average = defaultBPM;
+		tempo_ary = tempo_ary = new float[maxAverageValue];
+		for (int i = 0; i < tempo_ary.Length; i++) {
+			tempo_ary [i] = defaultBPM;
+		}
+	}
+	
+	// Update is called once per frame
+	void Update () {
+	}
+
+	public void Beat(){
+		float time_now = Time.time;
+		float time_delta = time_now - time_old;
+		float tempo_now = 60f / time_delta;
+		if (tempo_now > 80 && tempo_now < 200) {
+			tempo_ary [ary_num] = tempo_now;
+			ary_num++;
+			if (ary_num >= tempo_ary.Length) {
+				ary_num = 0;
+			}
+		}
+		if (tempo_now < 250) {
+			time_old = Time.time;
+		}
+
+		// calc average
+		float tempo_total = 0;
+		for (int i = 0; i < tempo_ary.Length; i++) {
+			tempo_total += tempo_ary [i];
+		}
+		tempo_average = tempo_total / tempo_ary.Length;
+	}
+
+	public float GetTempoAverage(){
+		return tempo_average;
+	}
+}