21.Noise

21. Noise

supportedOrientations(LANDSCAPE_ANY)

-- Use this function to perform your initial setup
function setup()
    parameter.number("noiseScale", 1/30, 1, 1/5)
    parameter.number("noiseSpeed", 0.05, 1, 0.2)
    parameter.integer("Red",0,255,0)    --these parameters added
    parameter.integer("Blue",0,255,255)
    parameter.integer("Green",0,255,150)
    parameter.integer("Alpha",0,255,0)

    tileSize = WIDTH/24
    noisePos = vec2(0,0)

    tiles = {}
    for x = 1, WIDTH/tileSize do
        tiles[x] = {}
        for y = 1, HEIGHT/tileSize do
            tiles[x][y] = noise(x * noiseScale, y * noiseScale)
        end
    end
end

function moveNoise()
    for x,column in ipairs(tiles) do
        for y,value in ipairs(column) do
            tiles[x][y] = noise(x * noiseScale + noisePos.x, y * noiseScale + noisePos.y)
        end
    end
end

-- This function gets called once every frame
function draw()
    background(0, 0, 0, 255)
    pushStyle()
    noStroke()
    noSmooth()
    
    for x,column in ipairs(tiles) do
        for y,value in ipairs(column) do
            fill((value+1)*0.5*255)
            rect((x-1)*tileSize, (y-1)*tileSize, tileSize, tileSize)
        end
    end
    
    noisePos = noisePos + vec2(0.5,0.3) * noiseSpeed
    moveNoise()
    fill(Red,Green,Blue,Alpha) --added
    rect(1,1,WIDTH,HEIGHT)     --added
    strokeWidth(5)
    stroke(0)
    fontSize(36)
    textMode(CORNER)
    fill(0)
    text("r="..Red,50,HEIGHT-300) -- these text lines added
    text("b="..Blue,50,HEIGHT-350)
    text("g="..Green,50,HEIGHT-400)
    text("a="..Alpha,50,HEIGHT-450)
    popStyle()
end