🎨 working on background color based polygon filling

src/BrailleBuffer.coffee

@@ -34,7 +34,9 @@ module.exports = class BrailleBuffer
     @foregroundBuffer = []
     @backgroundBuffer = []
 
-  setBackground: (idx, color) ->
+  setBackground: (x, y, color) ->
+    return unless 0 <= x < @width and 0 <= y < @height
+    idx = @_project x, y
     @backgroundBuffer[idx] = color
 
   setPixel: (x, y, color) ->

src/Canvas.coffee

@@ -49,6 +49,10 @@ module.exports = class Canvas
       bresenham projected[i-1]..., projected[i]...,
         (x, y) => @buffer.setPixel x, y, color
 
+  background: (x, y, color) ->
+    point = @_project x, y
+    @buffer.setBackground point[0], point[1], color
+
   # TODO: support for polygon holes
   polygon: (points, color) ->
     vertices = []

src/Renderer.coffee

@@ -19,7 +19,7 @@ module.exports = class Renderer
     labelMargin: 5
 
     #"poi_label", "water",
-    drawOrder: ["admin", "building", "road", "place_label", "poi_label", "housenum_label"]
+    drawOrder: ["water", "admin", "building", "road", "place_label", "poi_label", "housenum_label"]
 
     icons:
       car: "🚗"
@@ -109,9 +109,11 @@ module.exports = class Renderer
       features = @features[layer].tree.search box
       @notify "rendering #{features.length} #{layer} features.."
       for feature in features
-        @_drawFeature layer, feature.data, scale
+        @_drawFeature layer, feature, scale
+
+  _drawFeature: (layer, data, scale) ->
+    feature = data.data
 
-  _drawFeature: (layer, feature, scale) ->
     # TODO: this is ugly :) need to be fixed @style
     #return false if feature.properties.class is "ferry"
     feature.type = "LineString" if layer is "building" or layer is "road"
@@ -137,6 +139,11 @@ module.exports = class Renderer
 
       when "Polygon"
         @canvas.polygon toDraw[0], colorCode
+        # points = toDraw[0]
+        # for y in [Math.max(0,Math.floor(data.minY/scale))..Math.min(@height, Math.floor(data.maxY/scale))] by 4
+        #   for x in [Math.max(0, Math.floor(data.minX/scale))..Math.min(@width, Math.floor(data.maxX/scale))] by 2
+        #     if utils.pointInPolygon points, [x, y]
+        #       @canvas.background x, y, colorCode
 
       when "Point"
         text = feature.properties["name_"+@config.language] or

src/utils.coffee

@@ -16,6 +16,7 @@ utils =
       point[0] < (polygon[j][0]-polygon[i][0]) * (point[1]-polygon[i][1]) / (polygon[j][1]-polygon[i][1]) + polygon[i][0]
           inside = !inside
       j = i
+    inside
 
   deg2rad: (angle) ->
     # (angle / 180) * Math.PI