Removed unnecessary Position and GeoPoint classes to clear the code base.

- put utility classes in a package

#story[1047]
This commit is contained in:
Haoming Yin
2017-07-10 23:51:01 +12:00
parent f4134d83b5
commit fcb1e5e593
17 changed files with 79 additions and 142 deletions
@@ -0,0 +1,63 @@
package seng302.utilities;
import javafx.geometry.Point2D;
/**
* A Class for performing geometric calculations on the canvas
* Created by wmu16 on 24/05/17.
*/
public final class GeometryUtils {
/**
* Performs the line function on two points of a line and a test point to test which side of the line that point is
* on. If the return value is
* return 1, then the point is on one side of the line,
* return -1 then the point is on the other side of the line
* return 0 then the point is exactly on the line.
* @param linePoint1 One point of the line
* @param linePoint2 Second point of the line
* @param testPoint The point to test with this line
* @return A return value indicating which side of the line the point is on
*/
public static Integer lineFunction(Point2D linePoint1, Point2D linePoint2, Point2D testPoint) {
Double x = testPoint.getX();
Double y = testPoint.getY();
Double x1 = linePoint1.getX();
Double y1 = linePoint1.getY();
Double x2 = linePoint2.getX();
Double y2 = linePoint2.getY();
Double result = (x - x1)*(y2 - y1) - (y - y1)*(x2 - x1); //Line function
if (result > 0) {
return 1;
}
else if (result < 0) {
return -1;
}
else {
return 0;
}
}
/**
* Given a point and a vector (angle and vector length) Will create a new point, that vector away from the origin
* point
* @param originPoint The point with which to use as the base for our vector addition
* @param angleInDeg (DEGREES) The angle at which our new point is being created (in degrees!)
* @param vectorLength The length out on this angle from the origin point to create the new point
* @return a Point2D
*/
public static Point2D makeArbitraryVectorPoint(Point2D originPoint, Double angleInDeg, Double vectorLength) {
Double endPointX = originPoint.getX() + vectorLength * Math.cos(Math.toRadians(angleInDeg));
Double endPointY = originPoint.getY() + vectorLength * Math.sin(Math.toRadians(angleInDeg));
return new Point2D(endPointX, endPointY);
}
}