Camera

The Camera lets you gather information (specifically, distance from nearest block) in your surroundings.

Recipe

NOTE: The stone bricks on top can be any type of stone bricks.

API

Redstone

Since 0.1.4, you can hook up a redstone wire to the camera to get distance data - the energy level reflects the distance (15 - 0-1 blocks away, 14 - 2-3 blocks away, …., 1 - 30-31 blocks away).

OpenComputers/ComputerCraft

Command	Added in	Description	Usage
distance([x, y])	0.1.0	Calculates the distance of the closest block.	The x and y parameters are optional.

Robot Camera Upgrade-specific

Command	Added in	Description
distanceUp([x, y])	0.6.4 (broken before then)	Acts as a camera pointed up.
distanceDown([x, y])	0.6.4 (broken before then)	Acts as a camera pointed down.

NedoComputers

Address	Read	Write
0x00	X direction (-32768 - 32767 == -1.0 - 1.0)	X direction
0x02	Y direction	Y direction
0x04	Distance, measured in 1/64ths of a block.	-

Examples

ComputerCraft ray caster

local camera = peripheral.wrap("right")
local array = " .,-=+xX#"
local monitor = peripheral.wrap("monitor_0")
local yp = 1
monitor.clear()
monitor.setTextScale(0.5)
monitor.setCursorPos(1,1)

for j = -0.35,0.25,0.025 do
  for i = -1,1,0.036 do
    local d = camera.distance(i, 0-j)
    local a = 1
    if d > 0 then a = 2 + (8 - math.min(8, (d/1.2))) end
    monitor.write(string.sub(array, a, a))
  end
  yp=yp+1
  monitor.setCursorPos(1,yp)
end

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