114 lines
2.0 KiB
Lua
114 lines
2.0 KiB
Lua
-- robot api
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local api = {}
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api.create = function()
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local state = {
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y = 0,
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x = 0,
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z = 0,
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-- | BACKWARD | LEFT | RIGHT
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dir = 'FORWARD'
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}
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local mutateRobotPosition = function(isBackward)
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local incValue = 1
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if isBackward then invValue = -1 end
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if dir == 'FORWARD' then
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state.z = state.z + incValue
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elseif dir == 'BACKWARD' then
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state.z = state.z - incValue
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elseif dir == 'LEFT' then
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state.x = state.x - incValue
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elseif dir == 'RIGHT' then
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state.x = state.x + incValue
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end
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end
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local robot = {}
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robot.forward = function()
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local ok, err = turtle.forward()
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if ok then
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mutateRobotPosition(false)
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end
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return ok, err
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end
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robot.backward = function()
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local ok, err = turtle.back()
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if ok then
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mutateRobotPosition(true)
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end
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return ok, err
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end
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robot.up = function()
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local ok, err = turtle.up()
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if ok then
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state.y = state.y + 1
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end
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return ok, err
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end
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robot.down = function()
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local ok, err = turtle.down()
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if ok then
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state.y = state.y - 1
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end
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return ok, err
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end
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robot.turnLeft = function()
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local ok, err = turtle.turnLeft()
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if ok then
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if state.dir == 'FORWARD' then
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state.dir = 'LEFT'
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elseif state.dir == 'LEFT' then
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state.dir = 'BACKWARD'
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elseif state.dir == 'RIGHT' then
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state.dir = 'FORWARD'
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elseif state.dir == 'BACKWARD' then
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state.dir = 'RIGHT'
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end
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end
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return ok, err
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end
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robot.turnRight = function()
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local ok, err = turtle.turnRight()
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if ok then
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if state.dir == 'FORWARD' then
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state.dir = 'RIGHT'
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elseif state.dir == 'LEFT' then
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state.dir = 'FORWARD'
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elseif state.dir == 'RIGHT' then
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state.dir = 'BACKWARD'
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elseif state.dir == 'BACKWARD' then
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state.dir = 'LEFT'
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end
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end
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return ok, err
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end
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robot.getState = function()
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return state
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end
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return robot
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end
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return api |