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126 lines
2.7 KiB
126 lines
2.7 KiB
local robot = require('robot')
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local sides = require('sides')
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local nav = require('nav')
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local io = require('io')
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local filename, mode = ...
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if not filename or not mode then
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print('Usage: build <filename> <corner|center>')
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print('Top of the blueprint file will be where the robot is facing')
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return 1
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end
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---Read file line by line and split lines to characters and parse numbers
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---@param f file*
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---@return table grid
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local function parse_file(f)
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local grid = {}
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local line = f:read("*l")
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while line do
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local index = 1
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local row = {}
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for c in string.gmatch(line, ".") do
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if c ~= '.' and c ~= ' ' then
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local n = tonumber(c)
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if n then
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row[index] = n
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else
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row[index] = 0
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end
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else
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row[index] = 0
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end
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index = index + 1
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end
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grid[#grid + 1] = row
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line = f:read("*l")
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end
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return grid
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end
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---Move the robot from the center of the grid to the top left corner
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---Begins facing "up" and ends facing "up"
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---@param grid table 2d array
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local function move_to_corner(grid)
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local x = math.floor(#grid / 2)
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nav.forward(x)
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robot.turnLeft()
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local z = math.floor(#(grid[1]) / 2)
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nav.forward(z)
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robot.turnRight()
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end
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---Move the robot from the bottom left corner of the grid to the center
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---Begins facing "up" and ends facing "up"
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---@param grid table 2d array
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local function move_back_to_center(grid)
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local x = math.floor(#grid / 2)
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nav.forward(x)
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robot.turnRight()
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local z = math.floor(#(grid[1]) / 2)
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nav.forward(z)
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robot.turnLeft()
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end
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---Move the robot from the bottom left corner of the grid to the center
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---Begins facing "up" and ends facing "up"
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---@param grid table 2d array
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local function move_back_to_top_corner(grid)
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nav.forward(#grid - 1)
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end
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---Build the blueprint
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---Robot begins facing up
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---@param grid table 2d array
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local function build(grid)
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robot.turnRight()
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for _, row in ipairs(grid) do
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for _, block in ipairs(row) do
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if block ~= 0 then
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robot.select(block)
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robot.placeDown(sides.down)
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end
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nav.forward(1)
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end
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robot.turnRight()
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nav.forward(1)
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robot.turnRight()
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nav.forward(#row)
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robot.turnAround()
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end
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robot.turnLeft()
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nav.forward()
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end
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local file = io.open(filename, 'r')
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if not file then
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print('File not found')
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return 2
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end
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local grid = parse_file(file)
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if mode == 'center' then
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move_to_corner(grid)
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end
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build(grid)
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if mode == 'center' then
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move_back_to_center(grid)
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else
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move_back_to_top_corner(grid)
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end
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file:close()
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