amirrajan’s gists

amirrajan / index.html

Created March 29, 2026 00:40

DragonRuby Fiddle Tutorial Format


	<html>
	<head>
	<title>DragonRuby - Warp Drive Tutorial</title>
	</head>
	<body>
	<h1>DragonRuby Game Toolkit - Warp Drive Tutorial</h1>
	<div itemscope="itemscope" itemtype="tutorial-step" data-step-number="1">
	<div itemscope="itemscope" itemtype="tutorial-text">
	<h1>Traveling at Light Speed</h1>

amirrajan / main.rb

Last active March 15, 2026 18:32

DragonRuby Game Toolkit - Circular Viewport/Minimap

	def boot args
	args.state = {}
	end

	def tick args
	args.outputs.background_color = [30, 30, 30]
	args.state.player \|\|= {
	x: 640 - 32,
	y: 360 - 32,
	w: 64,

amirrajan / main.rb

Created March 7, 2026 02:30

DragonRuby Game Toolkit - `Easing.smooth_stop` and `Numeric#lerp`

	def boot args
	args.state = {}
	end

	def tick args
	# create 100 things and set the seed to a numeric value
	# the seed will be used to create a delay for each thing when the up and down keys are pressed
	args.state.things \|\|= 220.map do \|i\|
	x_ordinal = i % 20
	y_ordinal = i.idiv(20)

amirrajan / main.rb

Last active February 14, 2026 05:14

DragonRuby Game Toolkit - Advanced Blendmodes

	BLENDOPERATION_ADD = 0x1
	BLENDOPERATION_SUBTRACT = 0x2
	BLENDOPERATION_REV_SUBTRACT = 0x3
	BLENDOPERATION_MINIMUM = 0x4
	BLENDOPERATION_MAXIMUM = 0x5
	BLENDFACTOR_ZERO = 0x1
	BLENDFACTOR_ONE = 0x2
	BLENDFACTOR_SRC_COLOR = 0x3
	BLENDFACTOR_ONE_MINUS_SRC_COLOR = 0x4
	BLENDFACTOR_SRC_ALPHA = 0x5

amirrajan / game_metadata.txt

Created February 13, 2026 23:04

	# Remove the pound sign and leading space for the properties below before publishing your game.
	# devid=myname
	# devtitle=My Name
	# gameid=mygame
	# gametitle=My Game
	# version=0.1
	# icon=metadata/icon.png

	# === Flags available at all licensing tiers ===

amirrajan / main.rb

Created February 8, 2026 23:31

DragonRuby Game Toolkit: render order demonstration

	def tick args
	# comment out each of these label options one at a time to see how it renders
	args.outputs.labels << { x: 640,
	y: Math.sin(Kernel.tick_count.to_radians).abs * 720,
	r: 255, g: 0, b: 0,
	text: "I will always be on top (regardless of position in the tick method)",
	anchor_x: 0.5,
	anchor_y: 0.5 }

	# comment out each of these label options one at a time to see how it renders

amirrajan / main.rb

Created February 8, 2026 23:17

DragonRuby Game Toolkit - Easing.spline

	def tick args
	zig_zag_spline = [
	[0, 0.33, 0.66, 1],
	[1, 0.66, 0.33, 0],
	[0, 0.33, 0.66, 1],
	[1, 0.66, 0.33, 0]
	]

	linear_down_spline = [
	[1, 0.66, 0.33, 0]

amirrajan / main.rb

Created January 27, 2026 06:43

DragonRuby Game Toolkit - custom blend modes -> ring progress bar

	BLENDOPERATION_ADD = 0x1
	BLENDOPERATION_SUBTRACT = 0x2
	BLENDOPERATION_REV_SUBTRACT = 0x3
	BLENDOPERATION_MINIMUM = 0x4
	BLENDOPERATION_MAXIMUM = 0x5
	BLENDFACTOR_ZERO = 0x1
	BLENDFACTOR_ONE = 0x2
	BLENDFACTOR_SRC_COLOR = 0x3
	BLENDFACTOR_ONE_MINUS_SRC_COLOR = 0x4
	BLENDFACTOR_SRC_ALPHA = 0x5

amirrajan / Program.cs

Last active January 7, 2026 21:52

.ToInt extension method

	using System;
	using System.Linq;
	using System.Collections.Generic;
	using static Sugar;

	class Program
	{
	static void Main(string[] args)
	{
	if ("1111".ToInt() is int parsed)

amirrajan / rust-style-macros-in-ruby.org

Created November 12, 2025 22:26

# repetition specifies:
# token |   description        |
# ------+----------------------+
# $(),  | each comma delemited |
# $():, | each kwarg delemited |
# $()*  | each                 |
#
# intrinsic macros
# $to_s!

Amir Rajan amirrajan