mirror of
https://github.com/Ukendio/jecs.git
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102 lines
2.8 KiB
Text
102 lines
2.8 KiB
Text
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--[[
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portal is used to render a component over other components.
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it will find the nearest layer collector to parent itself and it's descendants
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onto, and if inherit_layout is enabled, inherits the nearest guibase2d's size and
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position properties.
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]]
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local vide = require(script.Parent.Parent.Parent.Parent.vide)
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local create = vide.create
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local source = vide.source
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local effect = vide.effect
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local cleanup = vide.cleanup
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local ref = vide.action
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local read = vide.read
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type can<T> = T | () -> T
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type portal = {
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--- controls if the portal should inherit the layout of the frame it's under
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inherit_layout: can<boolean>?,
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[number]: Instance,
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}
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local layout = 100_000
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local function portal(props: portal)
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local inherit_layout = props.inherit_layout
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local nearest_gui_base = source(nil :: GuiBase2d?)
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local nearest_layer_collector = source(nil :: LayerCollector?)
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local size = source(UDim2.fromScale(1, 1))
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local position = source(UDim2.fromScale(0, 0))
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local reference = source(nil :: Configuration?)
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-- this will create connections to update the size and position sources
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effect(function()
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local object = nearest_gui_base()
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if not object then return end
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local function update()
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size(UDim2.fromOffset(object.AbsoluteSize.X, object.AbsoluteSize.Y))
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position(UDim2.fromOffset(object.AbsolutePosition.X, object.AbsolutePosition.Y))
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end
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cleanup(object:GetPropertyChangedSignal("AbsoluteSize"):Connect(update))
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cleanup(object:GetPropertyChangedSignal("AbsolutePosition"):Connect(update))
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end)
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-- creates a container that is mounted to somewhere.
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cleanup(vide.mount(function()
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cleanup(create "Frame" {
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Name = `Portal:{layout}`,
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Parent = nearest_layer_collector,
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AutoLocalize = false,
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ZIndex = layout,
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Size = function()
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return if read(inherit_layout) == true then size()
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else UDim2.fromScale(1, 1)
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end,
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Position = function()
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return if read(inherit_layout) == true then position()
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else UDim2.fromScale(0, 0)
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end,
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BackgroundTransparency = 1,
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unpack(props)
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})
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end))
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-- this is an anchor used to reference what gui base and layer collector to use.
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return create "Configuration" {
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Name = `PortalAnchor:{layout}`,
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AncestryChanged = function()
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local reference = reference()
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if not reference then
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nearest_gui_base(nil)
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return
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end
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nearest_gui_base(reference:FindFirstAncestorWhichIsA("GuiBase2d"))
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nearest_layer_collector(reference:FindFirstAncestorWhichIsA("LayerCollector"))
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end,
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ref(function(instance)
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layout += 1
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reference(instance)
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nearest_gui_base(instance:FindFirstAncestorWhichIsA("GuiBase2d"))
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nearest_layer_collector(instance:FindFirstAncestorWhichIsA("LayerCollector"))
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end)
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}
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end
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return portal
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