codecombat/app/lib/surface/LayerAdapter.coffee
2014-10-18 18:18:12 -07:00

511 lines
19 KiB
CoffeeScript

###
* SpriteStage (WebGL Canvas)
** Land texture
** Ground-based selection/target marks, range radii
** Walls/obstacles
** Paths and target pieces (and ghosts?)
** Normal Thangs, bots, wizards (z-indexing based on World-determined sprite.thang.pos.z/y, mainly, instead of sprite-map-determined sprite.z, which we rename to... something)
** Above-thang marks (blood, highlight) and health bars
* Stage (Regular Canvas)
** Camera border
** surfaceTextLayer (speech, names)
** screenLayer
*** Letterbox
**** Letterbox top and bottom
*** FPS display, maybe grid axis labels, coordinate hover
** Grid lines--somewhere--we will figure it out, do not really need it at first
###
SpriteBuilder = require 'lib/sprites/SpriteBuilder'
CocoClass = require 'lib/CocoClass'
SegmentedSprite = require './SegmentedSprite'
SingularSprite = require './SingularSprite'
NEVER_RENDER_ANYTHING = false # set to true to test placeholders
module.exports = LayerAdapter = class LayerAdapter extends CocoClass
# Intermediary between a Surface Stage and a top-level static normal Container or hot-swapped WebGL SpriteContainer.
# It handles zooming in different ways and, if webGL, creating and assigning spriteSheets.
@TRANSFORM_SURFACE: 'surface' # Layer moves/scales/zooms with the Surface of the World
@TRANSFORM_SURFACE_TEXT: 'surface_text' # Layer moves with the Surface but is size-independent
@TRANSFORM_SCREEN: 'screen' # Layer stays fixed to the screen
# WebGL properties
actionRenderState: null
needToRerender: false
toRenderBundles: null
willRender: false
buildAutomatically: true
buildAsync: true
resolutionFactor: SPRITE_RESOLUTION_FACTOR
defaultActions: ['idle', 'die', 'move', 'move', 'attack']
numThingsLoading: 0
lanks: null
spriteSheet: null
container: null
customGraphics: null
subscriptions:
'camera:zoom-updated': 'onZoomUpdated'
constructor: (options) ->
super()
options ?= {}
@name = options.name ? 'Unnamed'
@defaultSpriteType = if @name is 'Default' then 'segmented' else 'singular'
@customGraphics = {}
@layerPriority = options.layerPriority ? 0
@transformStyle = options.transform ? LayerAdapter.TRANSFORM_SURFACE
@camera = options.camera
@updateLayerOrder = _.throttle @updateLayerOrder, 1000 / 30 # Don't call multiple times in one frame; 30 FPS is probably good enough
@webGL = !!options.webGL
if @webGL
@initializing = true
@spriteSheet = @_renderNewSpriteSheet(false) # builds an empty spritesheet
@container = new createjs.SpriteContainer(@spriteSheet)
@actionRenderState = {}
@toRenderBundles = []
@lanks = []
@initializing = false
else
@container = new createjs.Container()
toString: -> "<Layer #{@layerPriority}: #{@name}>"
#- Layer ordering
updateLayerOrder: ->
return if @destroyed
@container.sortChildren @layerOrderComparator
layerOrderComparator: (a, b) ->
# Optimize
alp = a.layerPriority or 0
blp = b.layerPriority or 0
return alp - blp if alp isnt blp
# TODO: remove this z stuff
az = a.z or 1000
bz = b.z or 1000
if aLank = a.lank
if aThang = aLank.thang
aPos = aThang.pos
if aThang.health < 0
--az
if bLank = b.lank
if bThang = bLank.thang
bPos = bThang.pos
if bThang.health < 0
--bz
if az is bz
return 0 unless aPos and bPos
return (bPos.y - aPos.y) or (bPos.x - aPos.x)
return az - bz
#- Zoom updating
onZoomUpdated: (e) ->
return unless e.camera is @camera
if @transformStyle in [LayerAdapter.TRANSFORM_SURFACE, LayerAdapter.TRANSFORM_SURFACE_TEXT]
change = @container.scaleX / e.zoom
@container.scaleX = @container.scaleY = e.zoom
if @webGL
@container.scaleX *= @camera.canvasScaleFactorX
@container.scaleY *= @camera.canvasScaleFactorY
@container.regX = e.surfaceViewport.x
@container.regY = e.surfaceViewport.y
if @transformStyle is LayerAdapter.TRANSFORM_SURFACE_TEXT
for child in @container.children
child.scaleX *= change
child.scaleY *= change
#- Container-like child functions
addChild: (children...) ->
@container.addChild children...
if @transformStyle is LayerAdapter.TRANSFORM_SURFACE_TEXT
for child in children
child.scaleX /= @container.scaleX
child.scaleY /= @container.scaleY
removeChild: (children...) ->
@container.removeChild children...
# TODO: Do we actually need to scale children that were removed?
if @transformStyle is LayerAdapter.TRANSFORM_SURFACE_TEXT
for child in children
child.scaleX *= @container.scaleX
child.scaleY *= @container.scaleY
#- Adding, removing children for WebGL layers.
addLank: (lank) ->
# TODO: Move this into the production DB rather than setting it dynamically.
if lank.thangType?.get('name') is 'Highlight'
lank.thangType.set('spriteType', 'segmented')
lank.options.resolutionFactor = @resolutionFactor
lank.layer = @
@listenTo(lank, 'action-needs-render', @onActionNeedsRender)
@lanks.push lank
@loadThangType(lank.thangType)
@addDefaultActionsToRender(lank)
@setSpriteToLank(lank)
@updateLayerOrder()
lank.addHealthBar()
removeLank: (lank) ->
@stopListening(lank)
lank.layer = null
@container.removeChild lank.sprite
@lanks = _.without @lanks, lank
#- Loading network resources dynamically
loadThangType: (thangType) ->
if not thangType.isFullyLoaded()
thangType.setProjection null
thangType.fetch() unless thangType.loading
@numThingsLoading++
@listenToOnce(thangType, 'sync', @somethingLoaded)
else if thangType.get('raster') and not thangType.loadedRaster
thangType.loadRasterImage()
@listenToOnce(thangType, 'raster-image-loaded', @somethingLoaded)
@numThingsLoading++
somethingLoaded: (thangType) ->
@numThingsLoading--
@loadThangType(thangType) # might need to load the raster image object
for lank in @lanks
if lank.thangType is thangType
@addDefaultActionsToRender(lank)
@renderNewSpriteSheet()
#- Adding to the list of things we need to render
onActionNeedsRender: (lank, action) ->
@upsertActionToRender(lank.thangType, action.name, lank.options.colorConfig)
addDefaultActionsToRender: (lank) ->
needToRender = false
if lank.thangType.get('raster')
@upsertActionToRender(lank.thangType)
else
for action in _.values(lank.thangType.getActions())
continue unless _.any @defaultActions, (prefix) -> action.name.startsWith(prefix)
@upsertActionToRender(lank.thangType, action.name, lank.options.colorConfig)
upsertActionToRender: (thangType, actionName, colorConfig) ->
groupKey = @renderGroupingKey(thangType, actionName, colorConfig)
return false if @actionRenderState[groupKey] isnt undefined
@actionRenderState[groupKey] = 'need-to-render'
@toRenderBundles.push({thangType: thangType, actionName: actionName, colorConfig: colorConfig})
return true if @willRender or not @buildAutomatically
@willRender = _.defer => @renderNewSpriteSheet()
return true
addCustomGraphic: (key, graphic, bounds) ->
return false if @customGraphics[key]
@customGraphics[key] = { graphic: graphic, bounds: new createjs.Rectangle(bounds...) }
return true if @willRender or not @buildAutomatically
@_renderNewSpriteSheet(false)
#- Rendering sprite sheets
renderNewSpriteSheet: ->
@willRender = false
return if @numThingsLoading
@_renderNewSpriteSheet()
_renderNewSpriteSheet: (async) ->
@asyncBuilder.stopAsync() if @asyncBuilder
@asyncBuilder = null
async ?= @buildAsync
builder = new createjs.SpriteSheetBuilder()
groups = _.groupBy(@toRenderBundles, ((bundle) -> @renderGroupingKey(bundle.thangType, '', bundle.colorConfig)), @)
# The first frame is always the 'loading', ie placeholder, image.
placeholder = @createPlaceholder()
dimension = @resolutionFactor * SPRITE_PLACEHOLDER_WIDTH
placeholder.setBounds(0, 0, dimension, dimension)
builder.addFrame(placeholder)
# Add custom graphics
extantGraphics = if @spriteSheet?.resolutionFactor is @resolutionFactor then @spriteSheet.getAnimations() else []
for key, graphic of @customGraphics
if key in extantGraphics
graphic = new createjs.Sprite(@spriteSheet)
graphic.gotoAndStop(key)
frame = builder.addFrame(graphic)
else
frame = builder.addFrame(graphic.graphic, graphic.bounds, @resolutionFactor)
builder.addAnimation(key, [frame], false)
# Render ThangTypes
groups = {} if NEVER_RENDER_ANYTHING
for bundleGrouping in _.values(groups)
thangType = bundleGrouping[0].thangType
colorConfig = bundleGrouping[0].colorConfig
actionNames = (bundle.actionName for bundle in bundleGrouping)
args = [thangType, colorConfig, actionNames, builder]
if thangType.get('raw')
if (thangType.get('spriteType') or @defaultSpriteType) is 'segmented'
@renderSegmentedThangType(args...)
else
@renderSingularThangType(args...)
else
@renderRasterThangType(thangType, builder)
if async
try
builder.buildAsync()
catch e
@resolutionFactor *= 0.9
return @_renderNewSpriteSheet(async)
builder.on 'complete', @onBuildSpriteSheetComplete, @, true, builder
@asyncBuilder = builder
else
sheet = builder.build()
@onBuildSpriteSheetComplete({async:async}, builder)
return sheet
onBuildSpriteSheetComplete: (e, builder) ->
return if @initializing or @destroyed
@asyncBuilder = null
if builder.spriteSheet._images.length > 1
total = 0
# get a rough estimate of how much smaller the spritesheet needs to be
for image, index in builder.spriteSheet._images
total += image.height / builder.maxHeight
@resolutionFactor /= (Math.max(1.1, Math.sqrt(total)))
@_renderNewSpriteSheet(e.async)
return
@spriteSheet = builder.spriteSheet
@spriteSheet.resolutionFactor = @resolutionFactor
oldLayer = @container
@container = new createjs.SpriteContainer(@spriteSheet)
for lank in @lanks
console.log 'zombie sprite found on layer', @name if lank.destroyed
continue if lank.destroyed
@setSpriteToLank(lank)
for prop in ['scaleX', 'scaleY', 'regX', 'regY']
@container[prop] = oldLayer[prop]
if parent = oldLayer.parent
index = parent.getChildIndex(oldLayer)
parent.removeChildAt(index)
parent.addChildAt(@container, index)
@camera?.updateZoom(true)
@updateLayerOrder()
for lank in @lanks
lank.options.resolutionFactor = @resolutionFactor
lank.updateScale()
lank.updateRotation()
@trigger 'new-spritesheet'
resetSpriteSheet: ->
@removeLank(lank) for lank in @lanks.slice(0)
@toRenderBundles = []
@actionRenderState = {}
@initializing = true
@spriteSheet = @_renderNewSpriteSheet(false) # builds an empty spritesheet
@initializing = false
#- Placeholder
createPlaceholder: ->
# TODO: Experiment with this. Perhaps have rectangles if default layer is obstacle or floor,
# and different colors for different layers.
g = new createjs.Graphics()
g.setStrokeStyle(5)
color = {
'Land': [0, 50, 0]
'Ground': [230, 230, 230]
'Obstacle': [20, 70, 20]
'Path': [200, 100, 200]
'Default': [64, 64, 64]
'Floating': [100, 100, 200]
}[@name] or [0, 0, 0]
g.beginStroke(createjs.Graphics.getRGB(color...))
color.push 0.7
g.beginFill(createjs.Graphics.getRGB(color...))
width = @resolutionFactor * SPRITE_PLACEHOLDER_WIDTH
bounds = [0, 0, width, width]
if @name in ['Default', 'Ground', 'Floating', 'Path']
g.drawEllipse(bounds...)
else
g.drawRect(bounds...)
new createjs.Shape(g)
#- Rendering containers for segmented thang types
renderSegmentedThangType: (thangType, colorConfig, actionNames, spriteSheetBuilder) ->
containersToRender = {}
for actionName in actionNames
action = _.find(thangType.getActions(), {name: actionName})
if action.container
containersToRender[action.container] = true
else if action.animation
animationContainers = @getContainersForAnimation(thangType, action.animation, action)
containersToRender[container.gn] = true for container in animationContainers
spriteBuilder = new SpriteBuilder(thangType, {colorConfig: colorConfig})
for containerGlobalName in _.keys(containersToRender)
containerKey = @renderGroupingKey(thangType, containerGlobalName, colorConfig)
if @spriteSheet?.resolutionFactor is @resolutionFactor and containerKey in @spriteSheet.getAnimations()
container = new createjs.Sprite(@spriteSheet)
container.gotoAndStop(containerKey)
frame = spriteSheetBuilder.addFrame(container)
else
container = spriteBuilder.buildContainerFromStore(containerGlobalName)
frame = spriteSheetBuilder.addFrame(container, null, @resolutionFactor * (thangType.get('scale') or 1))
spriteSheetBuilder.addAnimation(containerKey, [frame], false)
getContainersForAnimation: (thangType, animation, action) ->
rawAnimation = thangType.get('raw').animations[animation]
if not rawAnimation
console.error 'thang type', thangType.get('name'), 'is missing animation', animation, 'from action', action
containers = rawAnimation.containers
for animation in thangType.get('raw').animations[animation].animations
containers = containers.concat(@getContainersForAnimation(thangType, animation.gn, action))
return containers
#- Rendering sprite sheets for singular thang types
renderSingularThangType: (thangType, colorConfig, actionNames, spriteSheetBuilder) ->
actionObjects = _.values(thangType.getActions())
animationActions = []
for a in actionObjects
continue unless a.animation
continue unless a.name in actionNames
animationActions.push(a)
spriteBuilder = new SpriteBuilder(thangType, {colorConfig: colorConfig})
animationGroups = _.groupBy animationActions, (action) -> action.animation
for animationName, actions of animationGroups
renderAll = _.any actions, (action) -> action.frames is undefined
scale = actions[0].scale or thangType.get('scale') or 1
actionKeys = (@renderGroupingKey(thangType, action.name, colorConfig) for action in actions)
if @spriteSheet?.resolutionFactor is @resolutionFactor and _.all(actionKeys, (key) => key in @spriteSheet.getAnimations())
framesNeeded = _.uniq(_.flatten((@spriteSheet.getAnimation(key)).frames for key in actionKeys))
framesMap = {}
for frame in framesNeeded
sprite = new createjs.Sprite(@spriteSheet)
sprite.gotoAndStop(frame)
framesMap[frame] = spriteSheetBuilder.addFrame(sprite)
for key, index in actionKeys
action = actions[index]
frames = (framesMap[f] for f in @spriteSheet.getAnimation(key).frames)
next = @nextForAction(action)
spriteSheetBuilder.addAnimation(key, frames, next)
continue
mc = spriteBuilder.buildMovieClip(animationName, null, null, null, {'temp':0})
if renderAll
res = spriteSheetBuilder.addMovieClip(mc, null, scale * @resolutionFactor)
frames = spriteSheetBuilder._animations['temp'].frames
framesMap = _.zipObject _.range(frames.length), frames
else
framesMap = {}
framesToRender = _.uniq(_.flatten((a.frames.split(',') for a in actions)))
for frame in framesToRender
frame = parseInt(frame)
f = _.bind(mc.gotoAndStop, mc, frame)
framesMap[frame] = spriteSheetBuilder.addFrame(mc, null, scale * @resolutionFactor, f)
for action in actions
name = @renderGroupingKey(thangType, action.name, colorConfig)
if action.frames
frames = (framesMap[parseInt(frame)] for frame in action.frames.split(','))
else
frames = _.sortBy(_.values(framesMap))
next = @nextForAction(action)
spriteSheetBuilder.addAnimation(name, frames, next)
containerActions = []
for a in actionObjects
continue unless a.container
continue unless a.name in actionNames
containerActions.push(a)
containerGroups = _.groupBy containerActions, (action) -> action.container
for containerName, actions of containerGroups
container = spriteBuilder.buildContainerFromStore(containerName)
scale = actions[0].scale or thangType.get('scale') or 1
frame = spriteSheetBuilder.addFrame(container, null, scale * @resolutionFactor)
for action in actions
name = @renderGroupingKey(thangType, action.name, colorConfig)
spriteSheetBuilder.addAnimation(name, [frame], false)
nextForAction: (action) ->
next = true
next = action.goesTo if action.goesTo
next = false if action.loops is false
return next
#- Rendering frames for raster thang types
renderRasterThangType: (thangType, spriteSheetBuilder) ->
unless thangType.rasterImage
console.error("Cannot render the LayerAdapter SpriteSheet until the raster image for <#{thangType.get('name')}> is loaded.")
bm = new createjs.Bitmap(thangType.rasterImage[0])
scale = thangType.get('scale') or 1
frame = spriteSheetBuilder.addFrame(bm, null, scale)
spriteSheetBuilder.addAnimation(@renderGroupingKey(thangType), [frame], false)
#- Distributing new Segmented/Singular/RasterSprites to Lanks
setSpriteToLank: (lank) ->
if not lank.thangType.isFullyLoaded()
# just give a placeholder
sprite = new createjs.Sprite(@spriteSheet)
sprite.gotoAndStop(0)
sprite.placeholder = true
sprite.regX = @resolutionFactor * SPRITE_PLACEHOLDER_WIDTH / 2
sprite.regY = @resolutionFactor * SPRITE_PLACEHOLDER_WIDTH
sprite.baseScaleX = sprite.baseScaleY = sprite.scaleX = sprite.scaleY = 10 / (@resolutionFactor * SPRITE_PLACEHOLDER_WIDTH)
else if lank.thangType.get('raster')
sprite = new createjs.Sprite(@spriteSheet)
scale = lank.thangType.get('scale') or 1
reg = lank.getOffset 'registration'
sprite.regX = -reg.x * scale
sprite.regY = -reg.y * scale
sprite.gotoAndStop(@renderGroupingKey(lank.thangType))
sprite.baseScaleX = sprite.baseScaleY = 1
else
SpriteClass = if (lank.thangType.get('spriteType') or @defaultSpriteType) is 'segmented' then SegmentedSprite else SingularSprite
prefix = @renderGroupingKey(lank.thangType, null, lank.options.colorConfig) + '.'
sprite = new SpriteClass(@spriteSheet, lank.thangType, prefix, @resolutionFactor)
sprite.lank = lank
sprite.camera = @camera
sprite.layerPriority = lank.thang?.layerPriority ? lank.thangType.get 'layerPriority'
sprite.name = lank.thang?.spriteName or lank.thangType.get 'name'
lank.setSprite(sprite)
lank.update(true)
@container.addChild(sprite)
renderGroupingKey: (thangType, grouping, colorConfig) ->
key = thangType.get('slug')
for colorKey, colorValue of colorConfig ? {}
key += "(#{colorKey}:#{colorValue.hue},#{colorValue.saturation},#{colorValue.lightness})"
key += '.'+grouping if grouping
key
destroy: ->
child.destroy?() for child in @container.children
@asyncBuilder.stopAsync() if @asyncBuilder
super()