@Override
public Position getXWallRight(Dimension dim, Position p) {
// See getXWallLeft
double radius = dim.getHeight() / 2;
double angle = Math.asin((p.getY() - radius) / radius);
double xPos = radius * Math.cos(angle);
return new Position(radius + xPos, p.getY());
}
@Override
public Position getXWallLeft(Dimension dim, Position p) {
// Using trigonometry to get the X position where the current Y position
// hits the side, only "magic" is converting the positions so they
// originate in the middle of the circle, and then back again.
double radius = dim.getHeight() / 2;
double angle = Math.asin((p.getY() - radius) / radius);
double xPos = radius * Math.cos(angle);
return new Position(radius - xPos, p.getY());
}
@Override
public String toBinaryString() {
StringBuilder sb = new StringBuilder();
sb.append(roundTwoDecimals(position.getX()));
sb.append(';');
sb.append(roundTwoDecimals(position.getY()));
sb.append(';');
sb.append(color.getRed());
sb.append(';');
sb.append(color.getGreen());
sb.append(';');
sb.append(color.getBlue());
sb.append(';');
sb.append(width);
sb.append(';');
sb.append(height);
sb.append(';');
sb.append(roundTwoDecimals(velocity.x));
sb.append(';');
sb.append(roundTwoDecimals(velocity.y));
// sb.append(';');
// sb.append(maxSpeed);
// sb.append(';');
// sb.append(visionRange);
// sb.append(';');
// sb.append(maxAcceleration);
return sb.toString();
}
@Override
public Position getRandomPosition(Dimension dim) {
// Create a random position, and make sure it lies inside the circle.
// Doesn't loop too many times, since pi/4 of the square area is
// inside the circle i.e 78.54%. Should only be used during creation of
// agents and thus doesn't really impact the runtime speed.
Position pos;
do {
pos = new Position(dim.getWidth() * Math.random(), dim.getHeight() * Math.random());
} while ((Double.compare(pos.getX(), getXWallLeft(dim, pos).getX())
+ Double.compare(getXWallRight(dim, pos).getX(), pos.getX())
+ Double.compare(pos.getY(), getYWallBottom(dim, pos).getY())
+ Double.compare(getYWallTop(dim, pos).getY(), pos.getY()))
!= 4);
return pos;
}
