Point

Introduction

Warning

The Geom.Point class and all related functions will be removed. All functionality for this can be found in the existing Vector2 math classes. All Geometry classes that currently create and return Point objects will be updated to return Vector2 objects instead.

Point shape and methods, built-in methods of phaser.

• Author: Richard Davey

Usage

Create shape

var point = new Phaser.Geom.Point(x, y);

Clone shape

var point1 = Phaser.Geom.Point.Clone(point0);

Draw on graphics

// graphics.fillStyle(color, alpha);   // color: 0xRRGGBB
graphics.fillPointShape(point, size);

Set properties

• All properties

  point.setTo(x, y);
  

  or

  Phaser.Geom.Point.CopyFrom(source, dest);
  

• Position

  point.x = 0;
  point.y = 0;
  

• Round
  • Ceil : Apply Math.ceil() to each coordinate of the given Point

    var point = Phaser.Geom.Point.Ceil(point)
    

  • Floor : Apply Math.floor() to each coordinate of the given Point.

    var point = Phaser.Geom.Point.Floor(point)
    

Symmetry

• Invert : x = y, y = x

  var point = Phaser.Geom.Point.Invert(point);
  

• Negative : x = -x, y = -y

  var out = Phaser.Geom.Point.Negative(point);
  // var out = Phaser.Geom.Point.Negative(point, out);  // modify out
  

Get properties

• Position

  var x = point.x;
  var y = point.y;
  

• Type:

  var type = point.type; // 3
  

Equal

var isEqual = Phaser.Geom.Point.Equals(point0, point1);

x, y are equal.

Points

• Centroid : center-point over some points

  var out = Phaser.Geom.Point.GetCentroid(points);
  // var out = Phaser.Geom.Point.GetCentroid(points, out);  // modify out
  

• Calculates the Axis Aligned Bounding Box (or aabb) from an array of points (rectangle)

  var rect = Phaser.Geom.Point.GetRectangleFromPoints(points);
  // var rect = Phaser.Geom.Point.GetRectangleFromPoints(points, rect);  // modify rect
  

• Interpolate

  var out = Phaser.Geom.Point.Interpolate(pointA, pointB, t);  // out : point
  // var out = Phaser.Geom.Point.Interpolate(pointA, pointB, t, out);  // modify out
  

Intersection

• Point to line

  var result = Phaser.Geom.Intersects.PointToLine(point, line);
  // var result = Phaser.Geom.Intersects.PointToLine(point, line, lineThickness);
  

  var result = Phaser.Geom.Intersects.PointToLineSegment(point, line);
  

Point as Vector

Vector starting at (0,0)

• Magnitude : sqrt( (x * x) + (y * y) )

  var magnitude = Phaser.Geom.Point.GetMagnitude(point);
  

  or

  var magnitudeSq = Phaser.Geom.Point.GetMagnitudeSq(point);
  

• Project

  var out = Phaser.Geom.Point.Project(from, to);
  // var out = Phaser.Geom.Point.Project(from, to, out);  // modify out
  

  or

  var out = Phaser.Geom.Point.ProjectUnit(from, to);  // vector `from` and `to` are unit vector (length = 1)
  // var out = Phaser.Geom.Point.ProjectUnit(from, to, out);  // modify out