Differences

Differences from GDScript

	GDScript	D
Variables
Instantiation:	`var n = Node.new()`	`auto n = memnew!Node;`
Deletion:	`n.free()`	`memdelete(n);`
Reference-counting:	All vars inheriting Reference are automatically ref-counted	`Ref!ArrayMesh rc = memnew!ArrayMesh; // explicit Ref!T wrapper increments ref-count`
Dynamic typing:	All vars are dynamically-typed	`Variant v; // accepts any Godot-compatible type`
Checking inheritance:	`if n is Node2D:`	`if(n.as!Node2D) // null if n doesn't inherit Node2D`
Scripts
Inheritance:	`class MyNode extends Node:`	`class MyNode : GodotScript!Node { }`
Export method:	`func _ready(): # automatically exported`	`@Method void _ready() { }`
Export property:	`export var text = "asdf"`	`@Property String text = gs!"asdf";`
Global variables:	Autoloaded singleton nodes only	Autoloaded singleton nodes; alternatively, D variables declared outside any class, or as `static` inside a class
Naming conventions
Class/node:	PascalCase	PascalCase
Function/variable:	snake_case	camelCase
Constant/enum:	ALL_CAPS	camelCase
Math	in global scope	in std.math
	abs
	acos
	asin
	atan
	atan2
	ceil
	cos
	cosh
	deg2rad	`x*(PI/180)`
	exp
	floor
	fmod
	is_inf	`isInfinity`
	is_nan	`isNaN`
	log
	nearest_po2	`x.isPowerOf2 ? x : x.nextPow2`
	PI
	pow
	rad2deg	`x*(180/PI)`
	round
	sign	`sgn`
	sin
	sinh
	sqrt
	tan
	tanh
Algorithms	in global scope	in std.algorithm
	clamp
	max
	min
Other functions	in global scope
	assert	`assert` keyword
	load	`ResourceLoader.load`
	preload	not usable from D
	print	godot.d.output.print
Constants and enums	Globals in global scope	in godot.globalconstants
Class constants:	`Material.RENDER_PRIORITY_MAX`	`Material.Constants.renderPriorityMax`

Differences

Differences from GDScript

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