Fixed #1072 by raising selection state so that we can see it if we're selecting an obstacle.

app/lib/surface/Dimmer.coffee

@@ -26,7 +26,6 @@ module.exports = class Dimmer extends CocoClass
   build: ->
     @dimLayer = new createjs.Container()
     @dimLayer.mouseEnabled = @dimLayer.mouseChildren = false
-    @dimLayer.layerIndex = -10
     @dimLayer.addChild @dimScreen = new createjs.Shape()
     @dimLayer.addChild @dimMask = new createjs.Shape()
     @dimScreen.graphics.beginFill('rgba(0,0,0,0.5)').rect 0, 0, @camera.canvasWidth, @camera.canvasHeight

app/lib/surface/Mark.coffee

@@ -45,6 +45,13 @@ module.exports = class Mark extends CocoClass
         @mark.visible = true
     @
 
+  setLayer: (layer) ->
+    return if layer is @layer
+    wasOn = @on
+    @toggle false
+    @layer = layer
+    @toggle true if wasOn
+
   setSprite: (sprite) ->
     return if sprite is @sprite
     @sprite = sprite
@@ -131,7 +138,6 @@ module.exports = class Mark extends CocoClass
     @mark.graphics.endFill()
     @mark.regX = width / 2
     @mark.regY = height / 2
-    @mark.layerIndex = 10
     @mark.cache -1, -1, width + 2, height + 2 # not actually faster than simple ellipse draw
 
   buildRadius: (range) ->

app/lib/surface/PlaybackOverScreen.coffee

@@ -15,7 +15,6 @@ module.exports = class PlaybackOverScreen extends CocoClass
   build: ->
     @dimLayer = new createjs.Container()
     @dimLayer.mouseEnabled = @dimLayer.mouseChildren = false
-    @dimLayer.layerIndex = -12
     @dimLayer.addChild @dimScreen = new createjs.Shape()
     @dimScreen.graphics.beginFill('rgba(0,0,0,0.4)').rect 0, 0, @camera.canvasWidth, @camera.canvasHeight
     @dimLayer.cache 0, 0, @camera.canvasWidth, @camera.canvasHeight

app/lib/surface/PointChooser.coffee

@@ -21,7 +21,6 @@ module.exports = class PointChooser extends CocoClass
     @shape.mouseEnabled = false
     @shape.graphics.setStrokeStyle(1, 'round').beginStroke('#000000').beginFill('#fedcba')
     @shape.graphics.drawCircle(0, 0, 4).endFill()
-    @shape.layerIndex = 100
 
   onMouseDown: (e) =>
     return unless key.shift

app/lib/surface/SpriteBoss.coffee

@@ -373,6 +373,11 @@ module.exports = class SpriteBoss extends CocoClass
     @updateTarget()
     return unless @selectionMark
     @selectedSprite = null if @selectedSprite and (@selectedSprite.destroyed or not @selectedSprite.thang)
+    # The selection mark should be on the ground layer, unless we're not a normal sprite (like a wall), in which case we'll place it higher so we can see it.
+    if @selectedSprite and @selectedSprite.imageObject.parent isnt @spriteLayers.Default
+      @selectionMark.setLayer @spriteLayers.Default
+    else if @selectedSprite
+      @selectionMark.setLayer @spriteLayers.Ground
     @selectionMark.toggle @selectedSprite?
     @selectionMark.setSprite @selectedSprite
     @selectionMark.update()