Fixes to getFlatIcon and more. (#3353)

(Rebased and reopened #3347)

Attempted to fix pipe and door rendering
Fixed Table, carpet rendering
Ported full map-capture tool from bay, with python script to merge captured images.

tools/mapcapturemerge/merge.py

@@ -0,0 +1,41 @@
+from PIL import Image
+import os, re, imageHelpers
+
+def BYONDCordsToPixelCords(B, BMax):
+    y = (BMax[1] - B[1]) - 31
+    return (B[0] * 32 - 32, y * 32 - 32)
+
+image_location = os.path.join(os.getcwd(), 'captures')
+
+print("Map capture merger by Karolis")
+
+capture_images = []
+capture_re = re.compile("map_capture_x[0-9]+_y[0-9]+_z[0-9]+_r\d+\.png")
+for image_file in os.listdir(image_location):
+    if os.path.isfile(os.path.join(image_location, image_file)) and capture_re.match(image_file):
+        #print(image_file)
+        capture_images.append(imageHelpers.ImageFile(image_file, os.path.join(image_location, image_file)))
+
+max_x = 0
+max_y = 0
+z_levels = []
+captures = {}
+for capture in capture_images:
+    max_x = max(max_x, capture.cords[0] + capture.range)
+    max_y = max(max_y, capture.cords[1] + capture.range)
+    if not capture.cords[2] in z_levels:
+        z_levels.append(capture.cords[2])
+        captures[capture.cords[2]] = []
+    captures[capture.cords[2]].append(capture)
+
+maxCords = (max_x, max_y)
+
+for z in z_levels:
+    print("Merging map from " + str(z) + " z level.")
+    map = Image.new("RGBA", ((max_x - 1) * 32, (max_y - 1) * 32))
+    for capture in captures[z]:
+        part = capture.getImage()
+        map.paste(part, BYONDCordsToPixelCords(capture.cords, maxCords))
+    filename = "map_z" + str(z) + ".png"
+    print("Saving map as: " + filename)
+    map.save(filename)