Java Geometry Algorithm generateRobotPositions(Point start, Point end, int stepSize)

Description

generate Robot Positions

License

Open Source License

Declaration

public static List<Point> generateRobotPositions(Point start, Point end, int stepSize) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.awt.Point;
import java.util.ArrayList;
import java.util.List;

public class Main {
    public static List<Point> generateRobotPositions(Point start, Point end, int stepSize) {
        List<Point> positions = new ArrayList<Point>();

        int numXIterations = Math.abs(start.x - end.x) / stepSize;
        int lastStepSize = Math.abs(start.x - end.x) % stepSize;
        int startX = start.x;
        int startY = start.y;
        for (int i = 0; i < numXIterations; i++) {
            startX = (start.x > end.x) ? startX - stepSize : startX + stepSize;
            Point temp = new Point(startX, startY);
            positions.add(temp);/*from  w w w .  j  ava 2  s.com*/
        }
        if (lastStepSize > 0) {
            startX = (start.x > end.x) ? startX - lastStepSize : startX + lastStepSize;
            Point temp = new Point(startX, startY);
            positions.add(temp);
        }

        int numYIterations = Math.abs(start.y - end.y) / stepSize;
        lastStepSize = Math.abs(start.y - end.y) % stepSize;
        for (int i = 0; i < numYIterations; i++) {
            startY = (start.y > end.y) ? startY - stepSize : startY + stepSize;
            Point temp = new Point(startX, startY);
            positions.add(temp);
        }
        if (lastStepSize > 0) {
            startY = (start.y > end.y) ? startY - lastStepSize : startY + lastStepSize;
            Point temp = new Point(startX, startY);
            positions.add(temp);
        }

        return positions;
    }
}

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