A custom textureprogress node for godot

CustomTextureProgress.gd

extends Container
class_name CustomTextureProgress
tool

export(Texture) var textureUnder setget setUnderTexture
export(Texture) var textureProgress setget setProgressTexture
export(Texture) var textureOver setget setOverTexture

export(int) var stretchMarginLeft setget setStretchMarginLeft
export(int) var stretchMarginTop setget setStretchMarginTop
export(int) var stretchMarginRight setget setStretchMarginRight
export(int) var stretchMarginBottom setget setStretchMarginBottom

export(Material) var materialUnder setget setUnderMaterial
export(Material) var materialProgress setget setProgressMaterial
export(Material) var materialOver setget setOverMaterial

export(float) var maxValue = 100 setget setMax
export(float) var minValue = 0 setget setMin
export(float) var value = 50 setget setValue

var under = NinePatchRect.new()
var progress = NinePatchRect.new()
var over = NinePatchRect.new()
var rects = [under, progress, over]

func _init():
	for rect in rects:
		rect.anchor_left = 0
		rect.anchor_right = 1
		rect.anchor_top = 0
		rect.anchor_bottom = 1
		add_child(rect)
	updateProgress()

func setStretchMarginLeft(amount):
	stretchMarginLeft = amount
	for rect in rects: rect.patch_margin_left = amount
	updateMinSize()

func setStretchMarginTop(amount):
	stretchMarginTop = amount
	for rect in rects: rect.patch_margin_top = amount
	updateMinSize()

func setStretchMarginRight(amount):
	stretchMarginRight = amount
	for rect in rects: rect.patch_margin_right = amount
	updateMinSize()

func setStretchMarginBottom(amount):
	stretchMarginBottom = amount
	for rect in rects: rect.patch_margin_bottom = amount
	updateMinSize()

func updateMinSize():
	rect_min_size.y = stretchMarginTop + stretchMarginBottom
	rect_min_size.x = stretchMarginLeft + stretchMarginRight
	update()

func setUnderTexture(texture):
	textureUnder = texture
	under.texture = texture
	update()

func setProgressTexture(texture):
	textureProgress = texture
	progress.texture = texture
	update()

func setOverTexture(texture):
	textureOver = texture
	over.texture = texture
	update()

func setUnderMaterial(mat):
	materialUnder = mat
	under.material = mat
	update()

func setProgressMaterial(mat):
	materialProgress = mat
	progress.material = mat
	update()

func setOverMaterial(mat):
	materialProgress = mat
	over.material = mat
	update()

func setMax(amount):
	maxValue = amount
	updateProgress()

func setMin(amount):
	minValue = amount
	updateProgress()

func setValue(amount):
	value = amount
	updateProgress()

func updateProgress():
	var fract = (value - minValue)/ (maxValue - minValue)
	progress.anchor_right = fract
	progress.margin_right = 0
	update()