package?ComputingAngle;
public?class?Tool?{
	public?static?int?a?=0;
	//如果設一個角度為60度其對應的弧度制角度表示為x
	//180/pi?=?60/x
	//一弧度
	private?static?final?double?ARG?=180/Math.PI;
	//static?Double?a?=?0.0;
	//獲得角度的方法使用每一弧度*通過目標與原點之間反正切值計算出角度
	public?static?double?getAngle（double?targetXdouble?targetYdouble?sourseXdouble?sourseY）?{
		Double?y?=?targetY-sourseY;
		Double?x?=?targetX-sourseX;
		Double?degree?=?0.0;//度數
		if（x?>?0?&&?y?			degree?=?Math.atan2（-yx）*ARG-90-30;//度數
		}else?if（x?			degree?=?Math.atan2（-yx）*ARG-90+20;//度數
		}else?if（x??0）{//3
			degree?=?Math.atan2（-yx）*ARG-270;//度數
		}else?if（x?>?0?&&?y?>?0）{//4
			degree?=?Math.atan2（-yx）*ARG-180;//度數
		}
		Double?aaa?=?degree;
		return?aaa;
	}
	/**
	?*?			Y
	?*-11	?	|		11
	?*	?	2	|	1
	?*	??------|------	X
	?*	?	3	|	4
	?*-1-1		|		1-1?
	?*/
	
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-02-09?15:26??保衛蘿卜\
?????目錄???????????0??2018-02-09?15:26??保衛蘿卜\music\
?????文件??????447096??2018-01-20?02:04??保衛蘿卜\music\Ach.wav
?????文件??????882048??2018-01-20?08:13??保衛蘿卜\music\bg.wav
?????文件?????3681894??2018-01-20?02:02??保衛蘿卜\music\BGMusic.wav
?????文件???????46158??2018-01-20?08:41??保衛蘿卜\music\Bottle.wav
?????文件??????414838??2018-01-20?08:58??保衛蘿卜\music\Buff.wav
?????文件??????119886??2018-01-26?20:19??保衛蘿卜\music\carrot2.wav
?????文件??????106062??2018-01-26?20:05??保衛蘿卜\music\carrot3.wav
?????文件??????235086??2018-01-20?02:02??保衛蘿卜\music\Fat242.wav
?????文件???????83022??2018-01-26?21:11??保衛蘿卜\music\Fly151.wav
?????文件???????59982??2018-01-20?09:13??保衛蘿卜\music\Fly161.wav
?????文件???????46158??2018-01-26?21:06??保衛蘿卜\music\Land122.wav
?????文件??????106062??2018-01-26?22:59??保衛蘿卜\music\Land211.wav
?????文件??????765006??2018-01-20?08:37??保衛蘿卜\music\Lose.wav
?????目錄???????????0??2018-02-09?15:26??保衛蘿卜\protectradishfinal\
?????文件?????????295??2018-01-19?20:56??保衛蘿卜\protectradishfinal\.classpath
?????文件?????????382??2018-01-25?23:53??保衛蘿卜\protectradishfinal\.project
?????目錄???????????0??2018-02-09?15:26??保衛蘿卜\protectradishfinal\.settings\
?????文件??????????49??2018-01-19?20:56??保衛蘿卜\protectradishfinal\.settings\org.eclipse.core.resources.prefs
?????文件?????????587??2018-01-19?20:56??保衛蘿卜\protectradishfinal\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2018-02-09?15:26??保衛蘿卜\protectradishfinal\bin\
?????目錄???????????0??2018-02-09?15:26??保衛蘿卜\protectradishfinal\bin\ComputingAngle\
?????文件????????1154??2018-01-26?23:47??保衛蘿卜\protectradishfinal\bin\ComputingAngle\Tool.class
?????目錄???????????0??2018-02-09?15:26??保衛蘿卜\protectradishfinal\bin\CoordDemo\
?????文件?????????957??2018-01-26?23:08??保衛蘿卜\protectradishfinal\bin\CoordDemo\CoordDemo.class
?????目錄???????????0??2018-02-09?15:26??保衛蘿卜\protectradishfinal\bin\protectradish\
?????文件????????2501??2018-01-26?23:08??保衛蘿卜\protectradishfinal\bin\protectradish\Alpaca.class
?????文件?????????105??2018-01-26?23:08??保衛蘿卜\protectradishfinal\bin\protectradish\Award.class
?????文件?????????819??2018-01-26?23:08??保衛蘿卜\protectradishfinal\bin\protectradish\Background.class
?????文件??????760451??2018-01-26?21:58??保衛蘿卜\protectradishfinal\bin\protectradish\background.png
............此處省略278個文件信息