新增关卡默认大小140*15

ActionTowerDefense/Assets/GameLevelEditor/GameMap/CoreScripts/GameMapsAsset.cs

@@ -37,7 +37,7 @@ public class GameMapsAsset : ScriptableObject
 	public void ClearMap(int idx)
     {
 		GameMap m = new GameMap() { ident = "新增关卡"};
-		m.SetSize(10, 10);
+		m.SetSize(140, 15);
 		m.showIdent = m.ident;
 		maps[idx] = m; 
 	}