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--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 = " BB 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< B - o + " end
if tlev == 1 then levers = " BB >B< - o + " end
if tlev == 2 then levers = " BB B >-< o + " end
if tlev == 3 then levers = " BB B - >o< + " end
if tlev == 4 then levers = " BB 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
return (train.debug or "").."\n"..topLine.."\n"..firstLine.."\n"..secondLine
end
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