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-rw-r--r--advtrains/trainhud.lua126
1 files changed, 126 insertions, 0 deletions
diff --git a/advtrains/trainhud.lua b/advtrains/trainhud.lua
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index 0000000..591881a
--- /dev/null
+++ b/advtrains/trainhud.lua
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+--trainhud.lua: holds all the code for train controlling
+
+advtrains.hud = {}
+
+minetest.register_on_leaveplayer(function(player)
+advtrains.hud[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
+ if pc.up then
+ train.tarvelocity = math.min(train.tarvelocity + 1, maxspeed)
+ end
+ if pc.down then
+ if train.velocity>0 then
+ train.tarvelocity = math.max(train.tarvelocity - 1, 0)
+ else
+ train.movedir = -train.movedir
+ end
+ end
+ if pc.left then
+ if train.door_open ~= 0 then
+ train.door_open = 0
+ else
+ train.door_open = -train.movedir
+ end
+ end
+ if pc.right then
+ if train.door_open ~= 0 then
+ train.door_open = 0
+ else
+ train.door_open = train.movedir
+ end
+ end
+ if train.brake_hold_state~=2 then
+ train.brake = false
+ end
+ if pc.jump then
+ train.brake = true
+ end
+ if pc.aux1 then
+ --horn
+ 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.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 vel=advtrains.abs_ceil(train.velocity)
+ local tvel=advtrains.abs_ceil(train.tarvelocity)
+ local topLine, firstLine, secondLine
+
+ topLine=" ["..mletter[fct*train.movedir].."] "..doorstr[(train.door_open or 0) * train.movedir].." "..(train.brake and "="..( train.brake_hold_state==2 and "^" or "" ).."B=" or "")
+ firstLine=attrans("Speed:").." |"..string.rep("+", vel)..string.rep("_", max-vel)..">"
+ secondLine=attrans("Target:").." |"..string.rep("+", tvel)..string.rep("_", max-tvel)..">"
+
+ return topLine.."\n"..firstLine.."\n"..secondLine
+end