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76 lines
2.6 KiB
CoffeeScript
76 lines
2.6 KiB
CoffeeScript
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CocoClass = require 'lib/CocoClass'
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module.exports = class Dimmer extends CocoClass
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subscriptions:
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'level-disable-controls': 'onDisableControls'
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'level-enable-controls': 'onEnableControls'
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'level-highlight-sprites': 'onHighlightSprites'
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'sprite:speech-updated': 'onSpriteSpeechUpdated'
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'surface:frame-changed': 'onFrameChanged'
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'camera:zoom-updated': 'onZoomUpdated'
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constructor: (options) ->
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super()
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options ?= {}
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@camera = options.camera
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@layer = options.layer
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console.error @toString(), "needs a camera." unless @camera
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console.error @toString(), "needs a layer." unless @layer
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@build()
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@updateDimMask = _.throttle @updateDimMask, 10
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@highlightedThangIDs = []
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@sprites = {}
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toString: -> "<Dimmer>"
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build: ->
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@dimLayer = new createjs.Container()
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@dimLayer.mouseEnabled = @dimLayer.mouseChildren = false
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@dimLayer.layerIndex = -10
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@dimLayer.addChild @dimScreen = new createjs.Shape()
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@dimLayer.addChild @dimMask = new createjs.Shape()
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@dimScreen.graphics.beginFill("rgba(0,0,0,0.5)").rect 0, 0, @camera.canvasWidth, @camera.canvasHeight
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@dimMask.compositeOperation = 'destination-out'
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@dimLayer.cache 0, 0, @camera.canvasWidth, @camera.canvasHeight
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onDisableControls: (e) ->
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return if @on or (e.controls and not ('surface' in e.controls))
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@dim()
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onEnableControls: (e) ->
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return if not @on or (e.controls and not ('surface' in e.controls))
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@undim()
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onSpriteSpeechUpdated: (e) -> @updateDimMask() if @on
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onFrameChanged: (e) -> @updateDimMask() if @on
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onZoomUpdated: (e) -> @updateDimMask() if @on
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onHighlightSprites: (e) ->
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@highlightedThangIDs = e.thangIDs ? []
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@updateDimMask() if @on
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setSprites: (@sprites) ->
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console.log
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dim: ->
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@on = true
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@layer.addChild @dimLayer
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@layer.updateLayerOrder()
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sprite.setDimmed true for thangID, sprite of @sprites
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@updateDimMask()
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undim: ->
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@on = false
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@layer.removeChild @dimLayer
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sprite.setDimmed false for thangID, sprite of @sprites
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updateDimMask: =>
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@dimMask.graphics.clear()
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for thangID, sprite of @sprites
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continue unless (thangID in @highlightedThangIDs) or sprite.isTalking?() or sprite.thang?.id is 'My Wizard'
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sup = x: sprite.displayObject.x, y: sprite.displayObject.y
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cap = @camera.surfaceToCanvas sup
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r = 50 * @camera.zoom # TODO: find better way to get the radius based on the sprite's size
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@dimMask.graphics.beginRadialGradientFill(["rgba(0,0,0,1)", "rgba(0,0,0,0)"], [0.5, 1], cap.x, cap.y, 0, cap.x, cap.y, r).drawCircle(cap.x, cap.y, r)
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@dimLayer.updateCache 0, 0, @camera.canvasWidth, @camera.canvasHeight
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