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- --[[
- The MIT License (MIT)
- Copyright (c) 2012 Lyqyd
- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- THE SOFTWARE.
- --]]
- -- Lyqyds location API (https://github.com/lyqyd/location)
- -- the headings have been altered to use the Minecraft directions
- -- have also made some simplifications to suit the needed use case
- local location = {
- add = function(self, o)
- return vector.new(
- self.x + o.x,
- self.y + o.y,
- self.z + o.z
- )
- end,
- sub = function(self, o)
- return vector.new(
- self.x - o.x,
- self.y - o.y,
- self.z - o.z
- )
- end,
- mul = function(self, m)
- return vector.new(
- self.x * m,
- self.y * m,
- self.z * m
- )
- end,
- div = function(self, d)
- return vector.new(
- self.x / d,
- self.y / d,
- self.z / d
- )
- end,
- left = function(self)
- if turtle.turnLeft() then
- self.h = (self.h - 1) % 4
- return true
- end
- return false
- end,
- right = function(self)
- if turtle.turnRight() then
- self.h = (self.h + 1) % 4
- return true
- end
- return false
- end,
- forward = function(self)
- if turtle.forward() then
- self.x = self.x + (self.h - 2) * (self.h % 2)
- self.z = self.z + (1 - self.h) * ((self.h + 1) % 2)
- return true
- end
- return false
- end,
- back = function(self)
- if turtle.back() then
- self.x = self.x - (self.h - 2) * (self.h % 2)
- self.z = self.z - (1 - self.h) * ((self.h + 1) % 2)
- return true
- end
- return false
- end,
- up = function(self)
- if turtle.up() then
- self.y = self.y + 1
- return true
- end
- return false
- end,
- down = function(self)
- if turtle.down() then
- self.y = self.y - 1
- return true
- end
- return false
- end,
- moveDeltas = function(self)
- return (self.h - 2) * (self.h % 2), (1 - self.h) * ((self.h + 1) % 2)
- end,
- setHeading = function(self, heading)
- if not heading or heading < 0 or heading > 3 then return nil, "Heading Not in Range" end
- while self.h ~= heading do
- if (self.h + 1) % 4 == heading % 4 then
- self:right()
- else
- self:left()
- end
- end
- return true
- end,
- getHeading = function(self)
- return self.h
- end,
- tovector = function(self)
- if vector then
- return vector.new(
- self.x,
- self.y,
- self.z
- )
- else
- return nil
- end
- end,
- tostring = function(self)
- return self.x..","..self.y..","..self.z..","..self.h
- end,
- value = function(self)
- return self.x, self.y, self.z, self.h
- end,
- }
- local lmetatable = {
- __index = location,
- __add = location.add,
- __sub = location.sub,
- __mul = location.mul,
- __div = location.div,
- __unm = function(l) return l:mul(-1) end,
- __tostring = function(l) return l:tostring() end,
- }
- function new( x, y, z, h )
- local l = {
- x = x or 0,
- y = y or 0,
- z = z or 0,
- h = h or 1
- }
- setmetatable( l, lmetatable )
- return l
- end
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