From a45e3ca66aa6969e1ecdf87968e6a8f7b26bd9ed Mon Sep 17 00:00:00 2001
From: Hugues Ross <hugues.ross@gmail.com>
Date: Fri, 10 Apr 2020 07:00:29 -0400
Subject: [PATCH] Fix missing player marker

---
 map_formspec.lua | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/map_formspec.lua b/map_formspec.lua
index 77b496e..118856f 100644
--- a/map_formspec.lua
+++ b/map_formspec.lua
@@ -20,9 +20,27 @@ local function unknown_biome_tile(x, y, scale, variant)
     return tile:format(x, y, scale, scale, cartographer.skin.unknown_biome_texture .. "." .. tostring(variant) .. ".png");
 end
 
+-- Generate formspec markup for a given map
+-- data: The mapping data
+-- x: The X position of the map (in map coordinates)
+-- y: The Z position of the map (in map coordinates)
+-- w: The width of the map (in map coordinates)
+-- h: The height of the map (in map coordinates)
+-- player_x: The X position of the player marker (in map coordinates)
+-- player_y: The Y position of the player marker (in map coordinates)
+-- detail: The detail level
+-- map_scale: Integer scaling factor for displaying a zoomed-out map
+-- (Optional) is_visible: Callback to determine if a tile should be drawn
+-- (Optional) get_marker: Callback to get the marker for any given tile
+-- (Optional) user: userdata passed to the is_visible/get_marker callbacks
+--
+-- Returns a formspec string
 local function generate_map(data, x, y, w, h, player_x, player_y, detail, map_scale, is_visible, get_marker, user)
     local str = "";
     local random = PcgRandom(x + y + w + h); -- TODO: Better seed
+    player_x = math.floor(player_x / map_scale + 0.5);
+    player_y = math.floor(player_y / map_scale + 0.5);
+
     for i = x,x + w,1 do
         local fx = (i - x) * (scale - 0.01);
         local column = data.generated[i * map_scale];