diff --git a/src/main/java/cactusServer/entities/Player.java b/src/main/java/cactusServer/entities/Player.java
index 8db7788..4120783 100644
--- a/src/main/java/cactusServer/entities/Player.java
+++ b/src/main/java/cactusServer/entities/Player.java
@@ -17,8 +17,11 @@
 	private Quaternion3D angle;
 	private CameraState cameraState;
 	private EmoteState emoteState;
+	private long lastOperateTime = System.nanoTime();
 	@JSONHint(ignore = true)
 	public static final int UNIQUE_ID_LENGTH = 12;
+	@JSONHint(ignore = true)
+	public static final long STOP_TIME_LIMIT = (long)(30 * Math.pow(10, 9));
 
 	private Player() {
 		// JSONDecode���̌Ăяo���p
@@ -80,6 +83,11 @@
 	public EmoteState getEmoteState() {
 		return emoteState;
 	}
+	
+	@JSONHint(ignore = true)
+	public long getLastOperateTime() {
+		return lastOperateTime;
+	}
 
 	public void setInstanceID(String instanceID) {
 		this.instanceID = instanceID;
@@ -112,6 +120,11 @@
 	public void setAnimationClassToStart(EmoteState.EmoteType animationClassToStart) {
 		setEmoteState(new EmoteState(animationClassToStart));
 	}
+	
+	@JSONHint(ignore = true)
+	public void setLastOperateTime(long lastOperateTime) {
+		this.lastOperateTime = lastOperateTime;
+	}
 
 	public Player update(String characterID, Position3D position, Quaternion3D angle, CameraState cameraState,
 			EmoteState.EmoteType animationClassToStart) {