World eater master

KTRD

Feb 21st, 2025 (edited)

618

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-- Mocking the APIs for editor support
-- Remove before running in minecraft
--[[
local rednet = {
open = function(_) end,
close = function(_) end,
receive = function(_)
return 0, "ok"
end,
}
local os = {
sleep = function(_) end,
}
local gps = {
locate = function(_)
return 0, 0, 0
end,
}
local fs = {
exists = function(_)
return false
end,
open = function(_, _)
return {
writeLine = function(_) end,
close = function(_) end,
}
end,
}
--]]
local function getSide(x, z)
if (x <= 0) and (z <= 0) then
return "NW"
end
if (x > 0) and (z > 0) then
return "SE"
end
if (x <= 0) and (z > 0) then
return "SW"
end
if (x > 0) and (z <= 0) then
return "NE"
end
end
local function nextCoordsEvery(x, z, limit)
local side = getSide(x, z)
if side == "NW" then
if z == 0 then
return x, z + 1, false
end
return x - 1, z + 1, false
end
if side == "SE" then
if z == 1 then
return x, z - 1, false
end
return x + 1, z - 1, false
end
if side == "SW" then
if x == 0 then
return x + 1, z, false
end
return x + 1, z + 1, false
end
if side == "NE" then
if x == 1 then
if math.abs(z) == limit then
return x, z, true
end
return x - 1, z - 1, false
end
return x - 1, z - 1, false
end
end
local function nextCoords(x, z, limits)
local x1, z1, limitReached = nextCoordsEvery(x, z, limits)
if limitReached then
return x1, z1, true
elseif math.fmod(x1, 2) == 0 then
return nextCoordsEvery(x1, z1, limits)
else
return x1, z1, false
end
end
local function locate()
print("Getting the current location via GPS...")
local x, y, z = gps.locate(1)
if x == nil then
print("Waiting for GPS signal")
while x == nil do
os.sleep(10)
x, y, z = gps.locate(1)
end
end
print("Got the current location via GPS!")
return x, y, z
end
local NEXT_COORDS_FILE_NAME = ".eater_next_coords"
local LIMIT = 10
-- Init
rednet.open("back")
local x0, y0, z0 = locate()
y0 = y0 - 1
if not fs.exists(NEXT_COORDS_FILE_NAME) then
local f = fs.open(NEXT_COORDS_FILE_NAME, "w")
f.writeLine("0")
f.writeLine("0")
f.writeLine("false")
f.close()
end
local f = fs.open(NEXT_COORDS_FILE_NAME, "r")
local x, z = tonumber(f.readLine()), tonumber(f.readLine())
local limitReached = f.readLine() == "true"
-- Main loop
while true do
print("Waiting for a signal from a turtle...")
local id, msg = rednet.receive()
if msg == "eater_turtle ready" then
print("Received ready signal from #" .. id .. " turtle")
if limitReached then
print("Nothing to order!")
rednet.send(id, "eater_master done")
else
print("Ordering the turtle #" .. id .. " to go to " .. x .. ", " .. z)
rednet.send(id, "eater_master go " .. x .. " " .. z)
x, z, limitReached = nextCoords(x, z, LIMIT)
local saveF = fs.open(NEXT_COORDS_FILE_NAME, "w")
saveF.writeLine(tostring(x))
saveF.writeLine(tostring(z))
saveF.writeLine(tostring(limitReached))
saveF.close()
end
elseif msg == "eater_turtle search" then
print("Received search signal from #" .. id .. " turtle")
print("Sending zero coordinates to the turtle #" .. id)
rednet.send(id, "eater_master zero " .. x0 .. " " .. y0 .. " " .. z0)
else
print("Received unknown signal from #" .. id .. ", not sure what to do")
end
end

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