2014-01-03 13:32:13 -05:00
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ThangState = require './thang_state'
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module.exports = class WorldFrame
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@className: "WorldFrame"
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constructor: (@world, @time=0) ->
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@thangStateMap = {}
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@setState() if @world
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getNextFrame: ->
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# Optimized. Must be called while thangs are current at this frame.
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nextTime = @time + @world.dt
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return null if nextTime > @world.lifespan
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@hash = @world.rand.seed
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@hash += system.update() for system in @world.systems
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nextFrame = new WorldFrame(@world, nextTime)
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return nextFrame
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setState: ->
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for thang in @world.thangs
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@thangStateMap[thang.id] = thang.getState()
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restoreState: ->
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thangState.restore() for thangID, thangState of @thangStateMap
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for thang in @world.thangs
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if not @thangStateMap[thang.id] and not thang.stateless
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#console.log "Frame", @time, "restoring state for", thang.id, "and saying it don't exist"
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thang.exists = false
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restoreStateForThang: (thang) ->
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thangState = @thangStateMap[thang.id]
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if not thangState
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if not thang.stateless
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thang.exists = false
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#console.log "Frame", @time, "restoring state for", thang.id, "in particular and saying it don't exist"
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return
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thangState.restore()
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toString: ->
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map = ((' ' for x in [0 .. @world.width]) \
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for y in [0 .. @world.height])
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symbols = ".ox@dfga[]/D"
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2014-01-31 19:16:59 -05:00
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for thang, i in @world.thangs when thang.rectangle
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2014-01-03 13:32:13 -05:00
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rect = thang.rectangle().axisAlignedBoundingBox()
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for y in [Math.floor(rect.y - rect.height / 2) ... Math.ceil(rect.y + rect.height / 2)]
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for x in [Math.floor(rect.x - rect.width / 2) ... Math.ceil(rect.x + rect.width / 2)]
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2014-01-31 19:16:59 -05:00
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map[y][x] = symbols[i % symbols.length] if 0 <= y < @world.height and 0 <= x < @world.width
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2014-01-03 13:32:13 -05:00
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@time + "\n" + (xs.join(' ') for xs in map).join('\n') + '\n'
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serialize: (frameIndex, trackedPropertiesThangIDs, trackedPropertiesPerThangIndices, trackedPropertiesPerThangTypes, trackedPropertiesPerThangValues, specialValuesToKeys, specialKeysToValues) ->
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# Optimize
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for thangID, thangIndex in trackedPropertiesThangIDs
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thangState = @thangStateMap[thangID]
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if thangState
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thangState.serialize(frameIndex, trackedPropertiesPerThangIndices[thangIndex], trackedPropertiesPerThangTypes[thangIndex], trackedPropertiesPerThangValues[thangIndex], specialValuesToKeys, specialKeysToValues)
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@hash
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@deserialize: (world, frameIndex, trackedPropertiesThangIDs, trackedPropertiesThangs, trackedPropertiesPerThangKeys, trackedPropertiesPerThangTypes, trackedPropertiesPerThangValues, specialKeysToValues, hash) ->
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# Optimize
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wf = new WorldFrame null, world.dt * frameIndex
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wf.world = world
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wf.hash = hash
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for thangID, thangIndex in trackedPropertiesThangIDs
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wf.thangStateMap[thangID] = ThangState.deserialize world, frameIndex, trackedPropertiesThangs[thangIndex], trackedPropertiesPerThangKeys[thangIndex], trackedPropertiesPerThangTypes[thangIndex], trackedPropertiesPerThangValues[thangIndex], specialKeysToValues
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wf
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