Extend Sprite

gistfile1.js

'use strict';

var Block = function(x, y, size, color ) {
  this.size = size;
  this.color = color;

  this.bmd = game.add.bitmapData(this.size, this.size);
  this.createTexture();

  Phaser.Sprite.call(this, game, x, y, this.bmd);

  // initialize your prefab here
};

Block.prototype = Object.create(Phaser.Sprite.prototype);
Block.prototype.constructor = Block;

Block.prototype.setColor = function(color) {
  this.color = color;
  this.createTexture();
}

Block.prototype.createTexture = function() {
  this.bmd.clear();
  this.bmd.ctx.beginPath();
  this.bmd.ctx.rect(0,0,this.size,this.size);
  this.bmd.ctx.fillStyle = this.color;
  this.bmd.ctx.fill();
  this.bmd.ctx.closePath();
  this.bmd.render();
  this.bmd.refreshBuffer();
}