created git repository

1 files changed, 56 insertions, 0 deletions

diff --git a/trainhud.lua b/trainhud.lua
new file mode 100644
index 0000000..b64c81c
--- /dev/null
+++ b/trainhud.lua
@@ -0,0 +1,56 @@
+ 
+advtrains.hud = {}
+
+minetest.register_on_leaveplayer(function(player)
+advtrains.hud[player:get_player_name()] = nil
+end)
+
+function advtrains.set_trainhud(name, text)
+	local hud = advtrains.hud[name]
+	local player=minetest.get_player_by_name(name)
+	if not hud then
+		hud = {}
+		advtrains.hud[name] = hud
+		hud.id = player:hud_add({
+			hud_elem_type = "text",
+			name = "ADVTRAINS",
+			number = 0xFFFFFF,
+			position = {x=0.5, y=0.7},
+			offset = {x=0, y=0},
+			text = text,
+			scale = {x=200, y=60},
+			alignment = {x=0, y=0},
+		})
+		hud.oldText=text
+		return
+	elseif hud.oldText ~= text then
+		player:hud_change(hud.id, "text", text)
+		hud.oldText=text
+	end
+end
+function advtrains.hud_train_format(train, flip)
+	local fct=1
+	if flip then fct=-1 end
+	if not train then return "" end
+	local max=advtrains.all_traintypes[train.traintype].max_speed or 10
+	local vel=math.ceil(train.velocity)*fct
+	local tvel=math.ceil(train.tarvelocity)*fct
+	local firstLine, secondLine
+	if vel<0 then
+		firstLine="Speed: <"..string.rep("_", vel+max)..string.rep("+", -vel).."|"..string.rep("_", max)..">"
+	else
+		firstLine="Speed: <"..string.rep("_", max).."|"..string.rep("+", vel)..string.rep("_", max-vel)..">"
+	end
+	if tvel<0 then
+		secondLine="Target: <"..string.rep("_", tvel+max)..string.rep("+", -tvel).."|"..string.rep("_", max)..">"
+	else
+		secondLine="Target: <"..string.rep("_", max).."|"..string.rep("+", tvel)..string.rep("_", max-tvel)..">"
+	end
+	if vel==0 then
+		return firstLine.."\n"..secondLine.."\nup for forward, down for backward, use to get off train.  "
+	elseif vel<0 then
+		return firstLine.."\n"..secondLine.."\nPress up to decelerate, down to accelerate, sneak to stop."
+	elseif vel>0 then
+		return firstLine.."\n"..secondLine.."\nPress up to accelerate, down to decelerate, sneak to stop."
+	end
+end
\ No newline at end of file