codecombat/app/lib/surface/TrailMaster.coffee
2014-11-18 11:46:47 -08:00

108 lines
3.8 KiB
CoffeeScript

PAST_PATH_ALPHA = 0.75
PAST_PATH_WIDTH = 5
FUTURE_PATH_ALPHA = 0.4
FUTURE_PATH_WIDTH = 2
Camera = require './Camera'
CocoClass = require 'lib/CocoClass'
module.exports = class TrailMaster extends CocoClass
paths: null # dictionary of thang ids to containers for their paths
pathDisplayObject: null
world: null
constructor: (@camera, @layerAdapter) ->
super()
@tweenedSprites = []
@listenTo @layerAdapter, 'new-spritesheet', -> @generatePaths(@world, @thang)
generatePaths: (@world, @thang) ->
return if @generatingPaths
@generatingPaths = true
@cleanUp()
@createGraphics()
@pathDisplayObject = new createjs.SpriteContainer(@layerAdapter.spriteSheet)
@pathDisplayObject.mouseEnabled = @pathDisplayObject.mouseChildren = false
@pathDisplayObject.addChild @createFuturePath()
# @pathDisplayObject.addChild @createPastPath() # Just made the animated path the full path... do we want to have past and future look different again?
@pathDisplayObject.addChild @createTargets()
@generatingPaths = false
return @pathDisplayObject
cleanUp: ->
createjs.Tween.removeTweens(sprite) for sprite in @tweenedSprites
@tweenedSprites = []
createGraphics: ->
color = @colorForThang(@thang.team, PAST_PATH_ALPHA)
@targetDotKey = @cachePathDot(10, color)
@pastDotKey = @cachePathDot(PAST_PATH_WIDTH, color)
@futureDotKey = @cachePathDot(FUTURE_PATH_WIDTH, @colorForThang(@thang.team, FUTURE_PATH_ALPHA))
cachePathDot: (width, color) ->
key = "path-dot-#{width}-#{color}"
color = createjs.Graphics.getRGB(color...)
unless key in @layerAdapter.spriteSheet.getAnimations()
circle = new createjs.Shape()
radius = width/2
circle.graphics.setStrokeStyle(1).beginFill(color).beginStroke('#000000').drawCircle(0, 0, radius)
@layerAdapter.addCustomGraphic(key, circle, [-radius*1.5, -radius*1.5, radius*3, radius*3])
return key
colorForThang: (team, alpha=1.0) ->
rgb = [0, 255, 0]
rgb = [255, 0, 0] if team is 'humans'
rgb = [0, 0, 255] if team is 'ogres'
rgb.push(alpha)
return rgb
createPastPath: ->
return unless points = @world.pointsForThang @thang.id, @camera
params = { interval: 8, frameKey: @pastDotKey }
return @createPath(points, params)
createFuturePath: ->
return unless points = @world.pointsForThang @thang.id, @camera
interval = Math.max(1, parseInt(@world.frameRate / 4))
params = { interval: interval, animate: true, frameKey: @futureDotKey }
return @createPath(points, params)
createTargets: ->
return unless @thang.allTargets
container = new createjs.SpriteContainer(@layerAdapter.spriteSheet)
for x, i in @thang.allTargets by 2
y = @thang.allTargets[i + 1]
sup = @camera.worldToSurface x: x, y: y
sprite = new createjs.Sprite(@layerAdapter.spriteSheet)
sprite.scaleX = sprite.scaleY = 1 / @layerAdapter.resolutionFactor
sprite.gotoAndStop(@targetDotKey)
sprite.x = sup.x
sprite.y = sup.y
container.addChild(sprite)
return container
createPath: (points, options={}) ->
options = options or {}
interval = options.interval or 8
key = options.frameKey or @pastDotKey
container = new createjs.SpriteContainer(@layerAdapter.spriteSheet)
for x, i in points by interval * 2
y = points[i + 1]
sprite = new createjs.Sprite(@layerAdapter.spriteSheet)
sprite.scaleX = sprite.scaleY = 1 / @layerAdapter.resolutionFactor
sprite.gotoAndStop(key)
sprite.x = x
sprite.y = y
container.addChild(sprite)
if lastSprite and options.animate
createjs.Tween.get(lastSprite, {loop: true}).to({x:x, y:y}, 1000)
@tweenedSprites.push lastSprite
lastSprite = sprite
@logged = true
container
destroy: ->
@cleanUp()
super()