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celevator.drives.entity = {
name = "Drive",
description = "Normal entity-based drive",
nname = "celevator:drive",
soundhandles = {},
entityinfo = {},
}
local function update_ui(pos)
local meta = minetest.get_meta(pos)
local apos = tonumber(meta:get_string("apos")) or 0
local status = "Idle"
local vel = tonumber(meta:get_string("vel")) or 0
local state = meta:get_string("state")
if state == "running" and vel > 0 then
status = string.format("Running: Up, %0.02f m/s",vel)
elseif state == "running" and vel < 0 then
status = string.format("Running: Down, %0.02f m/s",math.abs(vel))
end
meta:set_string("infotext",string.format("Drive - %s - Position: %0.02f m",status,apos))
end
local function playbuzz(pos)
local hash = minetest.hash_node_position(pos)
if celevator.drives.null.soundhandles[hash] == "cancel" then return end
celevator.drives.null.soundhandles[hash] = minetest.sound_play("celevator_drive_run",{
pos = pos,
loop = true,
gain = 0.4,
})
end
local function startbuzz(pos)
local hash = minetest.hash_node_position(pos)
if celevator.drives.null.soundhandles[hash] == "cancel" then
celevator.drives.null.soundhandles[hash] = nil
return
end
if celevator.drives.null.soundhandles[hash] then return end
celevator.drives.null.soundhandles[hash] = "pending"
minetest.after(0.5,playbuzz,pos)
end
local function stopbuzz(pos)
local hash = minetest.hash_node_position(pos)
if not celevator.drives.null.soundhandles[hash] then return end
if celevator.drives.null.soundhandles[hash] == "pending" then
celevator.drives.null.soundhandles[hash] = "cancel"
end
if type(celevator.drives.null.soundhandles[hash]) ~= "string" then
minetest.sound_stop(celevator.drives.null.soundhandles[hash])
celevator.drives.null.soundhandles[hash] = nil
end
end
minetest.register_node("celevator:drive",{
description = celevator.drives.entity.name,
groups = {
cracky = 1,
},
tiles = {
"celevator_cabinet_sides.png",
"celevator_cabinet_sides.png",
"celevator_cabinet_sides.png",
"celevator_cabinet_sides.png",
"celevator_cabinet_sides.png",
"celevator_drive_front.png",
},
paramtype = "light",
paramtype2 = "facedir",
drawtype = "nodebox",
node_box = {
type = "fixed",
fixed = {
{-0.4,-0.4,-0.1,0.4,0.4,0.5},
{-0.5,-0.3,0.4,-0.4,-0.22,0.32},
{-0.5,0.22,0.4,-0.4,0.3,0.32},
},
},
_celevator_drive_type = "entity",
after_place_node = function(pos)
local meta = minetest.get_meta(pos)
meta:set_string("apos","0")
meta:set_string("dpos","0")
meta:set_string("vel","0")
meta:set_string("maxvel","0.2")
meta:set_string("state","stopped")
meta:set_string("startpos","0")
meta:set_string("origin",minetest.pos_to_string(vector.new(-726,9,77)))
update_ui(pos)
end,
on_destruct = stopbuzz,
})
minetest.register_entity("celevator:car_moving",{
initial_properties = {
visual = "wielditem",
visual_size = vector.new(0.667,0.667,0.667),
wield_item = "default:dirt",
static_save = false,
},
})
function celevator.drives.entity.nodestoentities(nodes)
local refs = {}
for _,pos in ipairs(nodes) do
local node = minetest.get_node(pos)
local eref = minetest.add_entity(pos,"celevator:car_moving")
eref:set_properties({
wield_item = node.name,
})
eref:set_yaw(minetest.dir_to_yaw(minetest.fourdir_to_dir(node.param2)))
minetest.remove_node(pos)
table.insert(refs,eref)
end
return refs
end
function celevator.drives.entity.entitiestonodes(refs)
for _,eref in ipairs(refs) do
local pos = vector.round(eref:get_pos())
local node = {
name = eref:get_properties().wield_item,
param2 = minetest.dir_to_fourdir(minetest.yaw_to_dir(eref:get_yaw()))
}
minetest.set_node(pos,node)
eref:remove()
end
end
function celevator.drives.entity.step()
local entitydrives_running = minetest.deserialize(celevator.storage:get_string("entitydrives_running")) or {}
local save = false
for i,hash in ipairs(entitydrives_running) do
save = true
local pos = minetest.get_position_from_hash(hash)
local node = minetest.get_node(pos)
local sound = false
if node.name == "ignore" then
minetest.forceload_block(pos,true)
elseif node.name ~= "celevator:drive" then
table.remove(entitydrives_running,i)
else
local meta = minetest.get_meta(pos)
local state = meta:get_string("state")
if not (state == "running" or state == "start") then
table.remove(entitydrives_running,i)
else
local dpos = tonumber(meta:get_string("dpos")) or 0
local maxvel = tonumber(meta:get_string("maxvel")) or 0.2
local startpos = tonumber(meta:get_string("startpos")) or 0
local origin = minetest.string_to_pos(meta:get_string("origin"))
if not origin then
minetest.log("error","[celevator] [entity drive] Invalid origin for drive at "..minetest.pos_to_string(pos))
table.remove(entitydrives_running,i)
end
if state == "start" then
sound = true
local handles = celevator.drives.entity.nodestoentities({vector.add(origin,vector.new(0,startpos,0))})
celevator.drives.entity.entityinfo[hash] = {
handles = handles,
}
meta:set_string("state","running")
elseif state == "running" then
local handles = celevator.drives.entity.entityinfo[hash].handles
local apos = handles[1]:get_pos().y - origin.y
local dremain = math.abs(dpos-apos)
local dmoved = math.abs(apos-startpos)
local vel
if dremain < 0.05 then
vel = 0
meta:set_string("state","stopped")
celevator.drives.entity.entitiestonodes(handles)
apos = math.floor(apos+0.5)
elseif dremain < 0.2 then
vel = 0.2
elseif dremain < maxvel and dremain < dmoved then
vel = dremain
elseif dmoved+0.1 > maxvel then
vel = maxvel
else
vel = dmoved+0.1
end
if dpos < apos then vel = 0-vel end
for _,eref in ipairs(handles) do
eref:set_velocity(vector.new(0,vel,0))
end
meta:set_string("apos",tostring(apos))
sound = vel ~= 0
meta:set_string("vel",tostring(vel))
end
end
end
update_ui(pos)
if sound then
startbuzz(pos)
else
stopbuzz(pos)
end
end
if save then
celevator.storage:set_string("entitydrives_running",minetest.serialize(entitydrives_running))
end
end
minetest.register_globalstep(celevator.drives.entity.step)
function celevator.drives.entity.moveto(pos,target)
local meta = minetest.get_meta(pos)
meta:set_string("dpos",tostring(target))
meta:set_string("state","start")
meta:set_string("startpos",meta:get_string("apos"))
local hash = minetest.hash_node_position(pos)
local entitydrives_running = minetest.deserialize(celevator.storage:get_string("entitydrives_running")) or {}
local running = false
for _,dhash in ipairs(entitydrives_running) do
if hash == dhash then
running = true
break
end
end
if not running then
table.insert(entitydrives_running,hash)
celevator.storage:set_string("entitydrives_running",minetest.serialize(entitydrives_running))
meta:set_string("vel","0.0001") --Controller needs to see something so it knows the drive is running
end
end
function celevator.drives.entity.resetpos(pos)
celevator.drives.entity.moveto(pos,0)
end
function celevator.drives.entity.estop(pos)
local meta = minetest.get_meta(pos)
if meta:get_string("state") == "stopped" then return end
local apos = math.floor(tonumber(meta:get_string("apos"))+0.5)
meta:set_string("dpos",tostring(apos))
local hash = minetest.hash_node_position(pos)
local handles = celevator.drives.entity.entityinfo[hash].handles
meta:set_string("state","stopped")
meta:set_string("vel","0")
celevator.drives.entity.entitiestonodes(handles)
stopbuzz(pos)
end
function celevator.drives.entity.setmaxvel(pos,maxvel)
local meta = minetest.get_meta(pos)
meta:set_string("maxvel",tostring(maxvel))
end
function celevator.drives.entity.rezero(pos)
celevator.drives.entity.moveto(pos,0)
end
function celevator.drives.entity.getstatus(pos,call2)
local node = minetest.get_node(pos)
if node.name == "ignore" and not call2 then
minetest.forceload_block(pos,true)
return celevator.drives.null.get_status(pos,true)
elseif node.name ~= "celevator:drive" then
minetest.log("error","[celevator] [entity drive] Could not load drive status at "..minetest.pos_to_string(pos))
return
else
local meta = minetest.get_meta(pos)
local ret = {}
ret.apos = tonumber(meta:get_string("apos")) or 0
ret.dpos = tonumber(meta:get_string("dpos")) or 0
ret.vel = tonumber(meta:get_string("vel")) or 0
ret.maxvel = tonumber(meta:get_string("maxvel")) or 0.2
return ret
end
end
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