mirror of https://github.com/kepler155c/opus
121 lines
2.8 KiB
Plaintext
121 lines
2.8 KiB
Plaintext
local function follow(id)
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local GPS = require('gps')
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local Socket = require('socket')
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local Point = require('point')
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local process = require('process')
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turtle.status = 'follow ' .. id
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local pt = GPS.getPointAndHeading()
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if not pt or not pt.heading then
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error('turtle: No GPS found')
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end
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turtle.setPoint(pt)
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local socket = Socket.connect(id, 161)
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if not socket then
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error('turtle: Unable to connect to ' .. id)
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return
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end
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local lastPoint
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local following = false
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local followThread = process:newThread('follower', function()
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while true do
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local function getRemotePoint()
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if not turtle.abort then
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if socket:write({ type = 'gps' }) then
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return socket:read(3)
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end
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end
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end
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-- sometimes gps will fail if moving
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local pt, d
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for i = 1, 3 do
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pt, d = getRemotePoint()
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if pt then
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break
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end
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os.sleep(.5)
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end
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if not pt or turtle.abort then
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error('Did not receive GPS location')
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end
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if not lastPoint or (lastPoint.x ~= pt.x or lastPoint.y ~= pt.y or lastPoint.z ~= pt.z) then
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if following then
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turtle.abort = true
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while following do
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os.sleep(.1)
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end
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turtle.abort = false
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end
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-- check if gps is inaccurate (player moving too fast)
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if d < Point.pythagoreanDistance(turtle.point, pt) + 10 then
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lastPoint = Point.copy(pt)
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following = true
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process:newThread('turtle_follow', function()
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local pts = {
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{ x = pt.x + 2, z = pt.z, y = pt.y },
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{ x = pt.x - 2, z = pt.z, y = pt.y },
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{ x = pt.x, z = pt.z + 2, y = pt.y },
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{ x = pt.x, z = pt.z - 2, y = pt.y },
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}
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local cpt = Point.closest(turtle.point, pts)
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local blocks = { }
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local function addBlocks(tpt)
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table.insert(blocks, tpt)
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local apts = Point.adjacentPoints(tpt)
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for _,apt in pairs(apts) do
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table.insert(blocks, apt)
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end
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end
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-- don't run into player
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addBlocks(pt)
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addBlocks({ x = pt.x, z = pt.z, y = pt.y + 1 })
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if turtle.pathfind(cpt, blocks) then
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turtle.headTowards(pt)
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end
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following = false
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end)
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end
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end
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os.sleep(.5)
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end
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end)
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while true do
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local e = process:pullEvent()
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if e == 'terminate' or followThread:isDead() or e =='turtle_abort' then
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process:threadEvent('terminate')
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break
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end
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end
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socket:close()
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return true
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end
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local s, m = turtle.run(function() follow({COMPUTER_ID}) end)
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if not s and m then
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error(m)
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end
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