feat(ascii-map): add ascii-map tab (#137)

It works like a charm! I'll be working on adjustable font size, but for now it's working great!

prs-ascii-map.lua

@@ -0,0 +1,52 @@
+
+asciiMap = asciiMap or {}
+asciiMap.mapContainer = asciiMap.mapContainer or Geyser.ScrollBox:new({
+  x = 0,
+  y = 0,
+  width = "100%",
+  height = "100%",
+}, GUI.tabwindow3.AsciiMapcenter)
+
+asciiMap.mapLabel = asciiMap.mapLabel or Geyser.Label:new({
+  x = 0,
+  y = 0,
+  width = "100%",
+  height = "100%",
+}, asciiMap.mapContainer)
+
+MAP_CMD_ID = 1
+GETTING_TOO_BIG_NUMBER = 1000000
+currentId = 0
+
+function sendMapCommand()
+  currentId = currentId + 1
+  if currentId > GETTING_TOO_BIG_NUMBER then
+    currentId = 1
+  end
+  send("gmcp cmd " .. MAP_CMD_ID .. currentId .. " map", false)
+end
+
+function mapEventHandler(event, args) 
+  if (gmcp.Char.Output.id ~= MAP_CMD_ID .. currentId) then 
+    return 
+  end
+
+  asciiMap.mapLabel:decho("<pre>" .. ansi2decho(gmcp.Char.Output.output) .. "</pre>")
+  asciiMap.mapLabel:setStyleSheet([[
+    font-family: Bitstream Vera Sans Mono;
+    background-color: #111;
+    font-size: 10px;
+  ]])
+  asciiMap.mapLabel:enableAutoAdjustSize(true, true)
+end
+
+if map_handler_id then
+  killAnonymousEventHandler(map_handler_id)
+end
+map_handler_id = registerAnonymousEventHandler("gmcp.Char.Output", mapEventHandler)
+
+if send_command_handler_id then
+  killAnonymousEventHandler(send_command_handler_id)
+end
+send_command_handler_id = registerAnonymousEventHandler("gmcp.Char.room", sendMapCommand)
+

prs-gui.lua

@@ -141,7 +141,7 @@ GUI.tabwindow3 = GUI.tabwindow3 or Adjustable.TabWindow:new({
     inactiveTabFGColor = "#555555",
     color1 = "rgb(24,24,28)",
     color2 = "rgb(16,16,20)",
-    tabs = {"Map"}
+    tabs = {"Map", "AsciiMap"}
 }, GUI.right_top)
 
 GUI.tabwindow4 = GUI.tabwindow4 or Adjustable.TabWindow:new({