STREAM_IMAGE Example for TIS-100

function get_name()
    return "STREAM_IMAGE EXAMPLE"
end

function get_description()
    return { "READ AN X VALUE FROM IN", "READ A Y VALUE FROM IN", "PLOT A WHITE POINT AT THAT COORDINATE" }
end

function get_streams()
    -- Initialize the image grid to all zeros (black):
    image = {}
    for i = 1,30*18 do
        image[i] = 0
    end

    -- Generate and plot 19 coordinate pairs:
    -- NOTE: Arrays in Lua start at 1, which is actually quite a nuisance to work with if you're at all
    --       used to arrays that start at 0 and the tricks that you can do to index them. It also doesn't
    --       help that for loops are inclusive on both ends! Kind of makes me wish I implemented custom
    --       levels in a real programming language like TIS-ASM...
    input = {}
    for i = 0,18 do
        x = math.random(0,29)
        y = math.random(0,17)
        input[i*2+1] = x
        input[i*2+2] = y
        image[1+x+y*30] = 3
    end

    return {
        { STREAM_INPUT, "IN", 1, input },
        { STREAM_IMAGE, "", 2, image },
    }
end

function get_layout()
    return {
        TILE_COMPUTE,   TILE_COMPUTE,   TILE_COMPUTE,   TILE_COMPUTE,
        TILE_COMPUTE,   TILE_COMPUTE,   TILE_COMPUTE,   TILE_COMPUTE,
        TILE_COMPUTE,   TILE_COMPUTE,   TILE_COMPUTE,   TILE_COMPUTE,
    }
end