113 lines
3.1 KiB
Lua
113 lines
3.1 KiB
Lua
home = vector.new(-250, 96, 108)
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up = vector.new(0,1,0)
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south = vector.new(0,0,1)
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east = vector.new(1,0,0)
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function greedystep(target)
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if (target-position):dot(facing) > 0 then
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if turtle.forward() then
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position = position + facing
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elseif position + facing ==target then
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return false, "the target is occupied"
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else
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temp = (target-position):dot(facing:cross(up))
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if temp>0 then
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turtle.turnRight()
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facing = facing:cross(up)
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elseif temp<0 then
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turtle.turnLeft()
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facing = - facing:cross(up)
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else
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temp = (target-position):dot(up)
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if temp>0 then
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if turtle.up() then
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position = position+up
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end
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elseif temp<0 then
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if turtle.down() then
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position = position-up
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end
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else
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error("help me im stuck")
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end
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end
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end
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else
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--we did not need to move in that direction
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temp = (target-position):dot(facing:cross(up))
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if temp > 0 then
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turtle.turnRight()
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facing=facing:cross(up)
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elseif temp < 0 then
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turtle.turnLeft()
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facing=facing:cross(-up)
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else
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if (target-position):dot(facing) == 0 then
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temp = (target-position):dot(up)
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if temp == 0 then
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return false,"the target has been reached"
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else
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if temp > 0 then
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if turtle.up() then
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position:add(up)
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else
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position.sub(up)
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end
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end
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end
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end
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end
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end
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-- print(position,facing)
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_G.position = position
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_G.facing = facing
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return true
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end
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greedystep = require("pathfinding2").greedystep
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function to(target)
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print(tostring(target))
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while greedystep(target) do
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end
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end
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function returnhome()
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to(home)
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if facing == south then
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turtle.turnRight()
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facing=facing:cross(up)
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end
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if facing == east then
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turtle.turnLeft()
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facing=facing:cross(-up)
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end
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if facing == -south then
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turtle.turnLeft()
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facing=facing:cross(-up)
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end
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_G.facing = facing
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_G.position = position
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end
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function lookat(target)
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print("lookat")
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while (position+facing).x ~= target.x
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or (position+facing).z ~= target.z do
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greedystep(target)
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end
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print("temp")
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temp = target.y-position.y
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while target.y > position.y do
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turtle.up()
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position = position+up
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end
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while target.y < position.y do
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turtle.down()
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position = position-up
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end
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_G.position = position
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end
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return {to = to,
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returnHome=returnhome,
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lookat = lookat,
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home = home}
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