[英]Going to the center of the map in robocode
我正嘗試直接轉到地圖的中心。 因此,這意味着您不必轉向地圖高度的中心,而是轉向地圖寬度的中心,我想開始並面對中心然后去那里。 一旦我在那里,我想停下來。 我覺得我應該做的事,但無法正常工作。
1)我走對了嗎?
2)有沒有更簡單的方法可以直接去市中心? 像只是拼出座標的方法嗎?
到目前為止,我有:
public void run() {
// Initialization of the robot should be put here
setColors(Color.black,Color.blue,Color.orange, Color.orange, Color.cyan); // body,gun,radar
double xMiddle = getBattleFieldWidth() / 2;
double yMiddle = getBattleFieldHeight() / 2;
double directionToTurn = 0;
// Robot main loop
while(true) {
if( (int)getX() != xMiddle && (int)getY() != yMiddle ){
if ( (int)getX() > xMiddle && (int)getY() > yMiddle ) { //Quadrant 1
directionToTurn = (int)getHeading() - 225;
System.out.println("Quadrant: ONE ");
} else if ( (int)getX() < xMiddle && (int)getY() > yMiddle ) { //Quadrant 2
directionToTurn = (int)getHeading() - 135;
System.out.println("Quadrant: TWO ");
} else if ( (int)getX() < xMiddle && (int)getY() < yMiddle ) { //Quadrant 3
directionToTurn = (int)getHeading() - 45;
System.out.println("Quadrant: THREE ");
} else if ( (int)getX() > xMiddle && (int)getY() < yMiddle ) { //Quadrant 4
directionToTurn = (int)getHeading() - 315;
System.out.println("Quadrant: FOUR ");
} else if ( (int)getX() > xMiddle && (int)getY() == yMiddle ) { // Right Center
directionToTurn = (int)getHeading() - 270;
System.out.println("Quadrant: Right Center ");
} else if ( (int)getX() < xMiddle && (int)getY() == yMiddle ) { // Left Center
directionToTurn = (int)getHeading() - 90;
System.out.println("Quadrant: Left Center ");
} else if ( (int)getX() == xMiddle && (int)getY() > yMiddle ) { // Top Center
directionToTurn = (int)getHeading() - 180;
System.out.println("Quadrant: Top Center ");
} else if ( (int)getX() == xMiddle && (int)getY() < yMiddle ) { // Bottom Center
directionToTurn = (int)getHeading() - 0;
System.out.println("Quadrant: Bottom Center ");
}
turnLeft( directionToTurn );
System.out.println("Position: ("+(int)(getX())+", "+(int)getY()+"), Facing: "+(int)getHeading() );
ahead(1);
}
}
}
您要計算的是方位角。 方位角是您的前進方向(朝向的方向)與到達目標的方向之間的差。 如果轉動軸承的角度,則您將面對目標。
自從使用Robocode以來已經有很長時間了,所以我不記得確切的API。 以下是草圖 (因此未經測試)。 在編譯之前,您必須修復函數名稱和類型。
// heading (or course) [0, 2pi): 0 is up, rotation is clock-wise
// bearing (-pi, pi]: positive is clock-wise
// convert angle to (-pi, pi]
double norm(double a) {
// do something smarter with modulus (%) here
while (a <= -Math.PI) a += 2 * Math.PI;
while (Math.PI < a) a -= 2 * Math.PI;
return a;
}
// get bearing in radians to a target(x,y) from the current position/heading
double getBearing(int x, int y) {
// can rotate the coordinate system to avoid the addition of pi/2 if you like
double b = Math.PI/2 - Math.atan2(y - robot.y(), x - robot.x());
return norm(b - robot.getHeadingRadians());
}
// then bearing to centre is
double bearingToCentre = getBearing(xMiddle, yMiddle);
萬一任何人需要此:
private void moveTowardsCenter() {
double centerAngle = Math.atan2(getBattleFieldWidth()/2-getX(), getBattleFieldHeight()/2-getY());
setTurnRightRadians(Utils.normalRelativeAngle(centerAngle - getHeadingRadians()));
setAhead(100);
}
@ Adam-burry解釋的內容,但經過測試並編譯了:D
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