Squashed 'advtrains/' content from commit 3256c27

git-subtree-dir: advtrains
git-subtree-split: 3256c2778d626548541bcdfabf3026f781a2287c

1 files changed, 226 insertions, 0 deletions

diff --git a/advtrains/trainhud.lua b/advtrains/trainhud.lua
new file mode 100644
index 0000000..c90a406
--- /dev/null
+++ b/advtrains/trainhud.lua
@@ -0,0 +1,226 @@
+--trainhud.lua: holds all the code for train controlling
+
+advtrains.hud = {}
+advtrains.hhud = {}
+
+minetest.register_on_leaveplayer(function(player)
+advtrains.hud[player:get_player_name()] = nil
+advtrains.hhud[player:get_player_name()] = nil
+end)
+
+local mletter={[1]="F", [-1]="R", [0]="N"}
+local doorstr={[-1]="|<>| >|<", [0]=">|< >|<", [1]=">|< |<>|"}
+
+function advtrains.on_control_change(pc, train, flip)
+   	local maxspeed = train.max_speed or 10
+	if pc.sneak then
+		if pc.up then
+			train.tarvelocity = maxspeed
+		end
+		if pc.down then
+			train.tarvelocity = 0
+		end
+		if pc.left then
+			train.tarvelocity = 4
+		end
+		if pc.right then
+			train.tarvelocity = 8
+		end
+		--[[if pc.jump then
+			train.brake = true
+			--0: released, 1: brake and pressed, 2: released and brake, 3: pressed and brake
+			if not train.brake_hold_state or train.brake_hold_state==0 then
+				train.brake_hold_state = 1
+			elseif train.brake_hold_state==2 then
+				train.brake_hold_state = 3
+			end
+		elseif train.brake_hold_state==1 then
+			train.brake_hold_state = 2
+		elseif train.brake_hold_state==3 then
+			train.brake = false
+			train.brake_hold_state = 0
+		end]]
+		--shift+use:see wagons.lua
+	else
+		local act=false
+		if pc.jump then
+			train.ctrl.user = 1
+			act=true
+		end
+		-- If atc command set, only "Jump" key can clear command. To prevent accidental control.
+		if train.tarvelocity or train.atc_command then
+			return
+		end
+		if pc.up then
+		   train.ctrl.user=4
+		   act=true
+		end
+		if pc.down then
+			if train.velocity>0 then
+				if pc.jump then
+					train.ctrl.user = 0
+				else
+					train.ctrl.user = 2
+				end
+				act=true
+			else
+				advtrains.invert_train(train.id)
+				advtrains.atc.train_reset_command(train)
+			end
+		end
+		if pc.left then
+			if train.door_open ~= 0 then
+				train.door_open = 0
+			else
+				train.door_open = -1
+			end
+		end
+		if pc.right then
+			if train.door_open ~= 0 then
+				train.door_open = 0
+			else
+				train.door_open = 1
+			end
+		end
+		if not act then
+			train.ctrl.user = nil
+		end
+	end
+end
+function advtrains.update_driver_hud(pname, train, flip)
+	local inside=train.text_inside or ""
+	advtrains.set_trainhud(pname, inside.."\n"..advtrains.hud_train_format(train, flip))
+end
+function advtrains.clear_driver_hud(pname)
+	advtrains.set_trainhud(pname, "")
+end
+
+function advtrains.set_trainhud(name, text)
+	local hud = advtrains.hud[name]
+	local player=minetest.get_player_by_name(name)
+	if not player then
+	   return
+	end
+	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.set_help_hud(name, text)
+	local hud = advtrains.hhud[name]
+	local player=minetest.get_player_by_name(name)
+	if not player then
+	   return
+	end
+	if not hud then
+		hud = {}
+		advtrains.hhud[name] = hud
+		hud.id = player:hud_add({
+			hud_elem_type = "text",
+			name = "ADVTRAINS_HELP",
+			number = 0xFFFFFF,
+			position = {x=1, y=0.3},
+			offset = {x=0, y=0},
+			text = text,
+			scale = {x=200, y=60},
+			alignment = {x=1, y=0},
+		})
+		hud.oldText=text
+		return
+	elseif hud.oldText ~= text then
+		player:hud_change(hud.id, "text", text)
+		hud.oldText=text
+	end
+end
+
+--train.lever:
+--Speed control lever in train, for new train control system.
+--[[
+Value	Disp	Control	Meaning
+0		BB		S+Space	Emergency Brake
+1		B		Space	Normal Brake
+2		-		S		Roll
+3		o		<none>	Stay at speed
+4		+		W		Accelerate
+]]
+
+function advtrains.hud_train_format(train, flip)
+	local fct=flip and -1 or 1
+	if not train then return "" end
+	
+	local max = train.max_speed or 10
+	local res = train.speed_restriction or max
+	local vel = advtrains.abs_ceil(train.velocity)
+	local vel_kmh=advtrains.abs_ceil(advtrains.ms_to_kmh(train.velocity))
+	
+	local levers = "B - o +"
+	local tlev=train.lever
+	if train.velocity==0 and not train.active_control then tlev=1 end
+	if tlev == 0 then levers = ">BB< - o +" end
+	if tlev == 1 then levers = ">B< - o +" end
+	if tlev == 2 then levers = "B >-< o +" end
+	if tlev == 3 then levers = "B - >o< +" end
+	if tlev == 4 then levers = "B - o >+<" end
+	
+	local topLine, firstLine
+	
+	local secondLine
+	if train.tarvelocity or train.atc_command then
+		local b="   "
+		local tvels=""
+		if train.tarvelocity then
+			local tvel = advtrains.abs_ceil(train.tarvelocity)
+			tvels = "|"..string.rep("+", tvel)..string.rep("_", max-tvel)
+		end
+		if train.atc_brake_target then
+			b="-B-"
+		end
+		local ad = ""
+		if train.atc_delay then
+			ad = " "..advtrains.abs_ceil(train.atc_delay).."s "
+		end
+		secondLine="ATC"..b..": "..tvels..ad..(train.atc_command or "")
+	else
+		secondLine = "Manual operation"
+		if train.ctrl.lzb then
+			secondLine = "-!- Safety override -!-"
+		end
+	end
+	local shtind = train.is_shunt and "S" or ">"
+	
+	topLine="  ["..mletter[fct].."]  {"..levers.."} "..doorstr[(train.door_open or 0)].."  "..(train.line and "L: "..train.line or "")
+	firstLine=attrans("Speed:").." |"..string.rep("+", vel)..string.rep("_", res-vel).."|"..string.rep("_", max-res)..shtind.." "..vel_kmh.." km/h"
+	if train.speed_restriction == 0 then
+		firstLine = "OVERRUN RED SIGNAL! Examine situation and reverse train to move again."
+	end
+
+	local lzb = train.lzb
+	
+	local i = 1
+	while i<=#lzb.oncoming do
+		local k = lzb.oncoming[i]
+		secondLine = secondLine .. "\n".."LZB: speed limit ["..(k.spd or "E")..("] in %.1f m"):format(k.idx-train.index)
+		if k.spd == 0 then
+			break
+		end
+		i=i+1
+	end
+
+	
+	return (train.debug or "").."\n"..topLine.."\n"..firstLine.."\n"..secondLine
+end