so, i'm trying to make a ship turn, but not instantly - here is my code:
Not sure what is wrong... originally I had an if / else if, but the else if , even though it was true, never changed the angleDelta. The way I have it now, I can't tell if it does or doesn't change angleDelta, but either way nothing happens - the current angle stays the same. Help?
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
* Write a description of class Ship here.
*
* @author Michionlion
* @version 10/3/2012
*/
public class Ship extends Actor {
int xPos, yPos, angle;
private int xDelta, yDelta, angleDelta, destX, destY, destAngle;
private boolean moving, turning;
private Player player;
private int frame;
public Ship(int xPos, int yPos) {
this.xPos = xPos;
this.yPos = yPos;
//this.player = player;
angleDelta = 0;
xDelta = 0;
yDelta = 0;
moving = false;
turning = false;
setImage("regShip.png");
}
public void addedToWorld() {
setLocation(xPos, yPos);
turnTo(204);
}
public void act() {
checkDestinations();
setLocation(xPos + xDelta, yPos + yDelta);
setRotation(angle + angleDelta);
frame++;
}
public Player getOwner() {
return player;
}
protected void checkDestinations() {
if (xPos == destX) xDelta = 0;
if (yPos == destY) yDelta = 0;
if (angle == destAngle) angleDelta = 0;
if (angleDelta == 0) turning = false;
else turning = true;
if (xDelta == 0 && yDelta == 0) moving = false;
else moving = true;
}
public void moveTo(int x, int y) {
}
public void turnTo(int a) {
if (a < 0 || a > 359) return;
if (a == angle) return;
if (destAngle < angle) angleDelta = -1;
else angleDelta = 1;
destAngle = a;
turning = true;
}
}