//package com.androidtowerwars.util;
class Vector2d {
private float x;
private float y;
public Vector2d(float x, float y) {
this.x = x;
this.y = y;
}
public Vector2d(float[] v) {
this.x = v[0];
this.y = v[1];
}
public Vector2d(float[] v1, float[] v2) {
this.x = v2[0] - v1[0];
this.y = v2[1] - v1[1];
}
public Vector2d(float x1, float y1, float x2, float y2) {
this.x = x2 - x1;
this.y = y2 - y1;
}
public float getLength() {
return (float) Math.sqrt(Math.pow(x,2)+Math.pow(y,2));
}
public final void normalize() {
if (getLength() != 0) {
float length = getLength();
x = x/length;
y = y/length;
}
}
public float getX() {
return x;
}
public float getY() {
return y;
}
}
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