Create an in-game text object in the PlayCanvas engine

Text.js

var Text = pc.createScript('text');

Text.attributes.add('text', { type: 'string', default:'Hello World!' });
Text.attributes.add('fontsize', { type: 'number', default:70, title:"Font Size" });

// initialize code called once per entity
Text.prototype.initialize = function() {
    // Create a canvas to do the text rendering
    this.canvas = document.createElement('canvas');
    this.canvas.height = 128;
    this.canvas.width = 512 ;
    this.context = this.canvas.getContext("2d");

    this.texture = new pc.Texture(this.app.graphicsDevice, {
        format: pc.PIXELFORMAT_R8_G8_B8_A8,
        autoMipmap: true
    });
    this.texture.setSource(this.canvas);
    this.texture.minFilter = pc.FILTER_LINEAR_MIPMAP_LINEAR;
    this.texture.magFilter = pc.FILTER_LINEAR;
    this.texture.addressU = pc.ADDRESS_CLAMP_TO_EDGE;
    this.texture.addressV = pc.ADDRESS_CLAMP_TO_EDGE;

    this.updateText();

    this.entity.model.material.emissiveMap = this.texture;
    this.entity.model.material.opacityMap = this.texture;
    this.entity.model.material.blendType = pc.BLEND_NORMAL;
    this.entity.model.material.update();
};

Text.prototype.updateText = function () {
    var ctx = this.context;
    var w = ctx.canvas.width;
    var h = ctx.canvas.height;

    // Clear the context to transparent
    ctx.fillStyle = "#00000000";
    ctx.fillRect(0, 0, w, h);

    // Write white text
    ctx.fillStyle = 'white';
    ctx.save();
    ctx.font = 'bold '+String(this.fontsize)+'px Verdana';
    ctx.textAlign = 'center';
    ctx.textBaseline = 'middle';

    ctx.fillText(this.text, w / 2, h / 2);
    ctx.restore();

    // Copy the canvas into the texture
    this.texture.upload();
};

// update code called every frame
Text.prototype.update = function(dt) {
    
};

// swap method called for script hot-reloading
// inherit your script state here
// Text.prototype.swap = function(old) { };

// to learn more about script anatomy, please read:
// http://developer.playcanvas.com/en/user-manual/scripting/

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