From 94523cbef67e3366111ee4e895a4dcdcbbe47a69 Mon Sep 17 00:00:00 2001
From: Nils Dagsson Moskopp <nils@dieweltistgarnichtso.net>
Date: Thu, 19 May 2022 17:56:33 +0200
Subject: [PATCH] Draw arrow for player holding map

---
 init.lua                         |  30 +++++++++++++++++++++++++++++-
 textures/maps_arrow.tga          | Bin 0 -> 179 bytes
 textures/maps_arrow_diagonal.tga | Bin 0 -> 180 bytes
 3 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 textures/maps_arrow.tga
 create mode 100644 textures/maps_arrow_diagonal.tga

diff --git a/init.lua b/init.lua
index 89333f4..e17c46d 100644
--- a/init.lua
+++ b/init.lua
@@ -373,7 +373,6 @@ minetest.register_on_joinplayer(
 			scale = { x = 4, y = 4 }
 		}
 		local dot_def = table.copy(map_def)
-		dot_def.text = "maps_x.tga" -- "player.png^[resize:4x8"
 		maps.maps[player_name] = player:hud_add(map_def)
 		maps.dots[player_name] = player:hud_add(dot_def)
 		maps.minp[player_name] = { x=-32000, y=0, z=0 }
@@ -428,6 +427,35 @@ minetest.register_globalstep(
 				maps.posx[player_name] = pos.x
 				maps.posz[player_name] = pos.z
 			end
+			local marker
+			local yaw = (
+				math.floor(
+					player:get_look_horizontal()
+					* 180 / math.pi / 45 + 0.5
+				) % 8
+			) * 45
+			if (
+				yaw == 0 or
+				yaw == 90 or
+				yaw == 180 or
+				yaw == 270
+			) then
+				marker = "maps_arrow.tga" .. "^[transformR" .. yaw
+			elseif (
+				yaw == 45 or
+				yaw == 135 or
+				yaw == 225 or
+				yaw == 315
+			) then
+				marker = "maps_arrow_diagonal.tga" .. "^[transformR" .. (yaw - 45)
+			end
+			if marker then
+				player:hud_change(
+					maps.dots[player_name],
+					"text",
+					marker
+				)
+			end
 		end
 	end
 )
diff --git a/textures/maps_arrow.tga b/textures/maps_arrow.tga
new file mode 100644
index 0000000000000000000000000000000000000000..91fccf460cc43a800d24ef5de25fd8c565592a86
GIT binary patch
literal 179
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mR1H)yOb<g7ND>78!&x9+NKmM2m}ju3zn^Y|o2QSf9s>Y}WiO-v

literal 0
HcmV?d00001

diff --git a/textures/maps_arrow_diagonal.tga b/textures/maps_arrow_diagonal.tga
new file mode 100644
index 0000000000000000000000000000000000000000..6798c9f21442b18323a1359eb3c9591a5cc04e44
GIT binary patch
literal 180
zcmZQz;9`IQb_R9^1&$^Vml22sf%tzThzBD6vw&DY@E-&~G>F55EYJj%fk^#t25~_K
sfmDJFWB89y0X7#bhN6t26{HL#4hJDYp{`+`!Jhtpx)E-kKCXHU0F1sb#Q*>R

literal 0
HcmV?d00001