Code Doodles!

[slime]

I tried following the "Creating a Mac OS X App" section here: http://www.love2d.org/wiki/Game_Distribution . But my friend said when he tried to run it, he gets the "no game" screen. Ideas?

Just rename "midnight.love.zip" in midnight.app/Contents/Resources/ to "midnight.love".

[CaptainMaelstrom]

Doh. Thanks slime. Everything works great now.

[substitute541]

Here's my second one:

Galaxies!

Press spacebar to change galaxies.

Galaxies.png (21.78 KiB) Viewed 4760 times

Code messy and mostly uncommented due to laziness.

Code: Select all

-- code doodle: galaxies
-- by phoenix enero

local screen = {}

math.randomseed(os.time())math.random()math.random()

local NOISESEED = math.random()*60000

function love.load()
	screen.width = love.window.getWidth()
	screen.height = love.window.getHeight()

	-- changeable constants
	num_arms = 4
	spiral_pitch = math.rad(12)
	angle_scale = 5
	perturb_dist = 5

	-- galaxy itself
	galaxyPoints = generateGalaxy(4000)
end

function love.keypressed(key, isrepeat)
	if key == " " then
		num_arms = math.floor(math.random()*3+2)
		spiral_pitch = math.rad(math.random()*5+10)
		NOISESEED = math.random()*60000
		galaxyPoints = generateGalaxy(2500)
	end
end

function generateGalaxy(num_points)
	-- lets generate multiple arms
	local points = {}
	local a = 50
	local b = spiral_pitch
	local e = 2.7182818284
	for arm=1, num_arms do
		local rho = (arm-1)/num_arms*2*math.pi
		for i=1, num_points/num_arms do
			local point = {}

			local factor = ((i-num_points/5)/num_points)*4
			local theta = 2*math.pi*angle_scale*factor-math.random()*1+0.5
			local r = a*e^(b*theta)
			local perturb = e^(r/(math.deg(b)*5)) * perturb_dist-perturb_dist/2

			point.x, point.y = parametric(r+math.random()*perturb,
										  theta+rho)

			local d = math.sqrt(point.x*point.x+point.y*point.y)
			local noiseVal = love.math.noise(d/350+NOISESEED)--,
											 --(theta%(2*math.pi)/100)+NOISESEED-10)
			local factor2 = (1/(math.max(r, 10)/150+1))

			local r, g, b = HSL(noiseVal*255, 64, 
								factor2*factor2*255, 128)
			point.color = {r, g, b}

			points[#points+1] = point
		end
	end
	return points
end

function parametric(r, theta)
	return math.cos(theta)*r, math.sin(theta)*r
end

function polar(x, y, px, py)
	local dx = px-x
	local dy = py-y
	local r = math.sqrt(dx*dx+dy*dy)
	local theta = math.atan2(dy, dx)
	return r, theta
end

function love.update(dt)
	
end

function love.draw()
	love.graphics.setBlendMode("additive")
	love.graphics.setColor(255, 255, 255)
	for _, v in pairs(galaxyPoints) do
		love.graphics.setColor(v.color)
		love.graphics.circle("fill", 
							 v.x+screen.width/2, 
							 v.y+screen.height/2, 
							 NOISESEED%2+0.5)
	end
end

-- Converts HSL to RGB. (input and output range: 0 - 255)
function HSL(h, s, l, a)
    if s<=0 then return l,l,l,a end
    h, s, l = h/256*6, s/255, l/255
    local c = (1-math.abs(2*l-1))*s
    local x = (1-math.abs(h%2-1))*c
    local m,r,g,b = (l-.5*c), 0,0,0
    if h < 1     then r,g,b = c,x,0
    elseif h < 2 then r,g,b = x,c,0
    elseif h < 3 then r,g,b = 0,c,x
    elseif h < 4 then r,g,b = 0,x,c
    elseif h < 5 then r,g,b = x,0,c
    else              r,g,b = c,0,x
    end return (r+m)*255,(g+m)*255,(b+m)*255,a
end

Edit: Modified code to make it more realistic.

Also, we should do something akin to JS1k (say, LOVE1k) that makes you create main.lua files less than 1k with boilerplate code. That would be pretty fun

[Ref]

Another do nothing doodle.

[HugoBDesigner]

I made a polygon transforming thing that slowly adds sides to itself. Instead of using the default Löve polygons, I had to make my owns. Here are the controls:

SPACE or "R": Randomizes colors
ENTER: Toggles inner lines
Middle click: Toggles auto-running polygon changes
Mouse wheel: Increases/Decreases the polygon's sides


And the code:

Code: Select all

--	LÖVE Code Doodle #5
--		by HugoBDesigner

function love.load()
	shapet = 0
	shapetb = 0
	shapemaxt = 10
	shaped = "f"
	shapemin = 3
	shapemax = 15
	recordingdata = {}
	isRecording = false
	timerecorded = 0 --Just so users can see how long they've been recording
	framesrecorded = 0 --Just so users can see how long they've been recording
	recordingtimer = 0
	recordingmaxtimer = .025
	
	canrun = true
	
	inlines = true
	rcol = {}
	rcol[1] = {0, 0, 0, 255}
	rcol[2] = {255, 255, 255, 255}
	rcol[3] = {155, 155, 155, 255}
	
	love.graphics.setBackgroundColor(unpack(rcol[1]))
end

function love.update(dt)
	local dt = math.min(dt, 1/60)
	if canrun then
		if shaped == "f" then
			shapet = shapet + dt
			if shapet >= shapemaxt then
				shaped = "b"
			end
		else
			shapet = shapet - dt
			if shapet <= 0 then
				shaped = "f"
			end
		end
		shapetb = shapet
	end
	
	if isRecording then
		if recordingtimer >= recordingmaxtimer then
			local a = love.graphics.newScreenshot()
			recordingdata[#recordingdata+1] = a
			framesrecorded = framesrecorded + dt
			timerecorded = round(framesrecorded)
			love.graphics.setCaption( "Spacing Out [RECORDING] - " .. tostring(timerecorded) .. " seconds - " .. tostring(#recordingdata) .. "frames")
			recordingtimer = 0
		else
			recordingtimer = recordingtimer + dt
		end
	end
end

function love.draw()
	local rd = 100
	local sides = (shapet/shapemaxt)*(shapemax-shapemin)+shapemin
	local points = love.graphics.shape("line", 400, 300, rd, math.limit(sides, shapemin, shapemax))
	love.graphics.clear()
	love.graphics.print("sides = " .. round(sides), 5, 15)
	love.graphics.setLineWidth(2)
	love.graphics.setColor(unpack(rcol[3]))
	if inlines then
		for i = 1, #points, 2 do
			local px = points[i]
			local py = points[i+1]
			for a = 1, #points, 2 do
				if a ~= i then
					local npx = points[a]
					local npy = points[a+1]
					love.graphics.line(px, py, npx, npy)
				end
			end
		end
	end
	love.graphics.setLineWidth(4)
	love.graphics.setColor(unpack(rcol[2]))
	local points = love.graphics.shape("line", 400, 300, rd, math.limit(sides, shapemin, shapemax))
end

function love.graphics.shape(mode, x, y, rd, sides)
	local points = {}
	for i = 1, math.ceil(sides) do
		local px = x
		local py = y
		local a = math.pi*2/sides*i
		px = px + math.cos(a)*rd
		py = py + math.sin(a)*rd
		table.insert(points, px)
		table.insert(points, py)
	end
	love.graphics.polygon(mode, points)
	return points
end

function love.keypressed(key, unicode)
	if key == "escape" then
		love.event.quit()
	end
	
	if key == "f12" then
		love.mouse.setGrab(not love.mouse.isGrabbed())
	end
	
	if key == "f3" then
		
		-- PART 1: Get the screenshot itself and make it as an image
		
		local number = 1
		local lnumber = "0001"

		if not love.filesystem.exists("screenshots") then --make one
			love.filesystem.mkdir("screenshots")
		end
		
		local screenshot = love.graphics.newScreenshot()
		while love.filesystem.exists("screenshots/screenshot_" .. lnumber .. ".png") do
			number = number + 1
			if number >= 1 and number < 10 then
				lnumber = "000" .. tostring(number)
			elseif number >= 10 and number < 100 then
				lnumber = "00" .. tostring(number)
			elseif number >= 100 and number < 1000 then
				lnumber = "0" .. tostring(number)
			else
				lnumber = tostring(number)
			end
		end
		--screenshot:encode("screenshots/screenshot_" .. lnumber .. ".png")
		
		
		--PART 2: Remove transparecy from screenshots. I noticed that they make transparent pixels
		
		local image = screenshot
		local imagewidth = image:getWidth()
		local imageheight = image:getHeight()
		for y = 0, imageheight-1 do
			for x = 0, imagewidth-1 do
				local r, g, b, a = image:getPixel( x, y )
				if a < 255 then
					image:setPixel( x, y, r, g, b, 255)
				end
			end
		end
		image:encode("screenshots/screenshot_" .. lnumber .. ".png")
	end
	
	if key == "f9" then
		if isRecording then
			stoprecording()
		else
			startrecording()
		end
	end
	
	if key == "f10" then
		if isRecording then
			stoprecording(true)
		end
	end
	
	if key == "f11" then
		if isRecording then
			isRecording = false
			recordingdata = {}
			framesrecorded = 0
			timerecorded = 0
		end
	end
	
	if key == "enter" or key == "return" or key == "kpenter" then
		inlines = not inlines
	end
	
	if key == " " or key == "r" then
		rcol[1] = {math.random(55), math.random(55), math.random(55), rcol[1][4]}
		rcol[2] = {math.random(155, 255), math.random(155, 255), math.random(155, 255), rcol[2][4]}
		rcol[3] = {math.random(55, 205), math.random(55, 205), math.random(55, 205), rcol[3][4]}
		
		love.graphics.setBackgroundColor(unpack(rcol[1]))
	end
end

function love.keyreleased(key, unicode)
	
end

function love.mousepressed(x, y, button)
	local mult = 50
	local add = shapemaxt/(mult*(shapemax-shapemin))
	if button == "m" then
		canrun = not canrun
		shapet = math.floor(shapet*mult/2)/mult*2
	end
	
	if canrun == false then
		if button == "wu" then
			shapet = math.limit(shapet + add, 0, shapemaxt)
		elseif button == "wd" then
			shapet = math.limit(shapet - add, 0, shapemaxt)
		end
	end
end

function love.mousereleased(x, y, button)
	
end

function dist(x1, y1, x2, y2, ab)
	local ab = ab or true
	local w, h = x1-x2, y1-y2
	if ab then
		w = math.abs(w)
		h = math.abs(h)
	end
	return math.sqrt(w^2+h^2)
end

function speedX(angle, speed)
	return -math.sin(angle)*speed
end

function speedY(angle, speed)
	return math.cos(angle)*speed
end

function math.limit(n, mn, mx)
	return math.max(mn, math.min(mx, n))
end

function math.offset(n, mn, mx, f)
	local n = n
	local f = f or mx
	if math.abs(mn-mx) > f then f = mx end
	while n >= mx do
		n = n - f
	end
	while n < mn do
		n = n + f
	end
	return n
end

function round(n, d)
	local d = d or 2
	return math.floor(10^d*n)/(10^d)
end

function fade(currenttime, maxtime, c1, c2)
	local tp = currenttime/maxtime
	local ret = {} --return color

	for i = 1, #c1 do
		ret[i] = c1[i]+(c2[i]-c1[i])*tp
		ret[i] = math.max(ret[i], 0)
		ret[i] = math.min(ret[i], 255)
	end

	return unpack(ret)
end

function startrecording()
	recordingdata = {}
	isRecording = true
end

function stoprecording(transparency)
	local transparency = transparency or false
	isRecording = false
	recordingtimer = 0
	if not love.filesystem.exists( "records" ) then
		love.filesystem.mkdir( "records" )
	end
	local a = "0001"
	local n = 1
	if love.filesystem.exists("records/record_" .. a) then
		while love.filesystem.exists("records/record_" .. a) do
			local zeros = ""
			n = n + 1
			if n >= 1 and n < 10 then
				zeros = "000"
			elseif n >= 10 and n < 100 then
				zeros = "00"
			elseif n >= 100 and n < 1000 then
				zeros = "0"
			end
			a = zeros .. tostring(n)
		end
	end
	n = 0
	love.filesystem.mkdir("records/record_" .. a)
	
	------------------
	
	for i = 1, #recordingdata do
		print("Recording saving at " .. tostring(round(100/#recordingdata*i, 2)) .. "%")
		local b = "0001"
		if love.filesystem.exists("records/record_" .. a .. "/" .. b .. ".png") then
			while love.filesystem.exists("records/record_" .. a .. "/" .. b .. ".png") do
				local zeros = ""
				n = n + 1
				if n >= 1 and n < 10 then
					zeros = "000"
				elseif n >= 10 and n < 100 then
					zeros = "00"
				elseif n >= 100 and n < 1000 then
					zeros = "0"
				end
				b = zeros .. tostring(n)
			end
		end
		
		if transparency then
			for x = 0, recordingdata[i]:getWidth()-1 do
				for y = 0, recordingdata[i]:getHeight()-1 do
					local r, g, b, a = recordingdata[i]:getPixel(x, y)
					a = 255
					recordingdata[i]:setPixel(x, y, r, g, b, a)
				end
			end
		end
		recordingdata[i]:encode("records/record_" .. a .. "/" .. b .. ".png")
	end
	
	recordingdata = {}
	
	framesrecorded = 0
	timerecorded = 0
end

function table.contains(t, e)
	for i, v in pairs(t) do
		if v == e then
			return i
		end
	end
	return false
end

It also includes unneeded things and my screenshots/in-game recording systems because I was lazy to remove them and there is no need to not publish them...

screenshot_0001 (1).png (59.11 KiB) Viewed 4681 times

EDIT: Made another one as a test. Here comes the warning:
DO NOT TRY IT IF YOU HAVE PROBLEMS WITH FLASHING IMAGES!!!

This one was a small test. When you enter it (or reload by pressing Ctrl+L), it'll ask you the file name. Just throw a few images in the game folder, type them in and hit enter. Use the mouse wheel to increase/decrease the amount of frames per image. What it does is take your image, divide it in 3 (red-only, green-only, blue-only) and show them on the screen one at a time. If you set a low amount of frames per image (1 is the best one), it looks just like if your image was normal colored. If you set it to a high amount (30 is the best one), it'll show slowly each color map of your picture.

Since it maps the pixels of your image to make this, this may take a while to load, but not much...

Code: Select all

--	LÖVE Code Doodle #6
--		by HugoBDesigner

function love.load()
	imgs = {}
	imgname = ""
	state = "type"
	currentimg = 0
	frames = 3
	exists = true
end

function loadimage(name)
	imgdt = love.image.newImageData(name .. ".png")
	for i = 1, 3 do
		local newdt = love.image.newImageData(name .. ".png")
		newdt:mapPixel(function(x, y, r, g, b, a)
							local newr, newg, newb = r, g, b
							if i == 2 or i == 3 then
								newr = 0
							end
							if i == 1 or i == 3 then
								newg = 0
							end
							if i == 1 or i == 2 then
								newb = 0
							end
							return newr, newg, newb, a
						end)
		table.insert(imgs, love.graphics.newImage(newdt))
	end
end

function love.update(dt)
	currentimg = currentimg + 1
	if currentimg > 3*frames then currentimg = 1 end
end

function love.draw()
	if state == "draw" then
		love.graphics.setColor(255, 255, 255, 255)
		love.graphics.draw(imgs[math.ceil(currentimg/frames)], 0, 0)
		love.graphics.setColor(0, 0, 0, 255)
		local txt, x, y = "Frames per image: " .. frames, 5, 15
		love.graphics.print(txt, x-1, y-1)
		love.graphics.print(txt, x, y-1)
		love.graphics.print(txt, x+1, y-1)
		love.graphics.print(txt, x-1, y)
		love.graphics.print(txt, x+1, y)
		love.graphics.print(txt, x-1, y+1)
		love.graphics.print(txt, x, y+1)
		love.graphics.print(txt, x+1, y+1)
		love.graphics.setColor(255, 255, 255, 255)
		love.graphics.print(txt, x, y)
	else
		love.graphics.setColor(255, 255, 255, 255)
		local font = love.graphics.newFont(12)
		local txt1 = "Type your image name:"
		love.graphics.print(txt1, 400-font:getWidth(txt1)/2, 50)
		love.graphics.print(imgname, 400-font:getWidth(imgname)/2, 80)
		if exists == false then
			love.graphics.setColor(255, 155, 155, 255)
			local txt2 = "Type a name that DOES exists as a .png"
			love.graphics.print(txt2, 400-font:getWidth(txt2)/2, 110)
		end
	end
end

function love.mousepressed(x, y, button)
	if button == "wu" then
		frames = math.min(frames+1, 30)
	elseif button == "wd" then
		frames = math.max(frames-1, 1)
	end
end

function love.keypressed(key, unicode)
	if key == "escape" then
		love.event.quit()
	end
	
	if state == "type" then
		forget = {"rshift", "lshift", "lalt", "ralt", "rctrl", "lctrl"}
		if key == "enter" or key == "return" or key == "kpenter" then
			if love.filesystem.exists(imgname .. ".png") then
				loadimage(imgname)
				state = "draw"
			else
				exists = false
			end
		elseif key == "backspace" then
			if string.len(imgname) <= 1 then
				imgname = ""
			else
				imgname = string.sub(imgname, 1, -2)
			end
		elseif table.contains(forget, key) == false then
			imgname = imgname .. key
		end
	end
	
	if key == "l" and (love.keyboard.isDown("lctrl") or love.keyboard.isDown("rctrl")) then
		love.load()
	end
end

function table.contains(t, e)
	for i, v in pairs(t) do
		if v == e then
			return i
		end
	end
	return false
end

[Reef]

I found a blog has has tons of Processing sketches similar to the doodles in this thread. They are non-interactive gifs but are still generated with code and may serve as inspiration.
http://beesandbombs.tumblr.com/

Anyway, here's a doodle I came up with.

Code: Select all

local width = love.graphics.getWidth()
local height = love.graphics.getHeight() 
local dots = {}
local timer = 0
local RADIUS = 25

local function distanceBetweenPoints(x1, y1, x2, y2)
  local xdiff = x2 - x1
  local ydiff = y2 - y1
  local distance = math.sqrt(xdiff*xdiff + ydiff*ydiff)
  return distance
end

function love.load()
  love.graphics.setBackgroundColor(75, 75, 75)

  for i = 0, height / (RADIUS * 2) do
    for j = 0, width / (RADIUS * 2) do
      dot = {
        x = j * (RADIUS * 2),
        y = i * (RADIUS * 2),
        r = RADIUS,
        color = {255, 255, 255}
      }
      table.insert(dots, dot)
    end
  end
end

function love.update(dt)
  local mX = love.mouse.getX()
  local mY = love.mouse.getY()
  local centerX, centerY = width/2, height/2
  for i = 1, #dots do
    local d = dots[i]
    local normDiffX = (mX - centerX) / distanceBetweenPoints(mX, mY, centerX, centerY)
    local normDiffY = (mY - centerY) / distanceBetweenPoints(mX, mY, centerX, centerY)

    -- move
    d.x = d.x - normDiffX*200 * dt
    d.y = d.y - normDiffY*200 * dt
    
    -- wrap-around
    if d.x > width + d.r then  -- right edge 
      d.x = 0 - d.r
    end
    if d.y > height + d.r then  -- bottom edge 
      d.y = 0 - d.r
    end
    if d.x < 0 - d.r then  -- left edge
      d.x = width + d.r
    end
    if d.y < 0 - d.r then  -- top edge
      d.y = height + d.r
    end

    -- avoid mouse
    if distanceBetweenPoints(mX, mY, d.x, d.y) < d.r*2 then
      d.color = {
        love.math.random(100, 200),
        love.math.random(100, 200),
        love.math.random(100, 200)
      }

      d.r = d.r - 20 * dt

      if mX < d.x then
        d.x = d.x + 100 * dt
      elseif mX > d.x then
        d.x = d.x - 100 * dt
      end

      if mY < d.y then
        d.y = d.y + 100 * dt
      elseif mY > d.y then
        d.y = d.y - 100 * dt
      end
    end
  end
end

function love.draw()
  for i = 1, #dots do
    love.graphics.setColor(dots[i].color)
    love.graphics.circle('fill', dots[i].x, dots[i].y, dots[i].r)
    love.graphics.setColor(255, 255, 255)
  end
end

function love.keypressed(key)
  if key == 'escape' then
    love.event.quit()
  end

  if key == 'r' then
    dots = {}
    love.load()
  end
end

[DaedalusYoung]

An inefficient way to read the time. But was fun trying to make all the images procedurally in love.load.

Code: Select all

--[[ CODE DOODLE #4 by DaedalusYoung ]]--
--[[              Dials              ]]--

local img = {}
local rn = love.math.random(1000)
local dials = { 0, 0, 0 }
local timer = 0
local ss = os.date("%S")

local function pixf(x, y, r, g, b, a)
	local d = math.min((((x - 128) ^ 2)+((y - 128) ^ 2)) ^ 0.54, 255)
	a = 255 - math.min(math.max(0, (d - 168) * 255), 255)
	d = (255 - d)
	local n = love.math.noise(x / 40, y / 40, rn) + (love.math.noise(x / 20, y / 20, rn) * 0.5) + (love.math.noise(x / 10, y / 10, rn) * 0.25)
	n = (n / 1.75) * 255
	if d < n then d = math.max(d - (n - d), 0) end
	return d, d, d, a
end

function love.load()
	love.graphics.setBackgroundColor(0, 0, 0)
	love.window.setTitle("Dials")
	local temp = love.image.newImageData(256, 256)
	img.face = {}
	for i = 1, 3 do
		rn = love.math.random(1000)
		temp:mapPixel(pixf)
		img.face[i] = love.graphics.newImage(temp)
	end
	temp = love.image.newImageData(16, 128)
	for x = 0, 15 do
		for y = 0, 127 do
			local a = 0
			local xoff = math.abs(x - 7.5) * 16
			a = math.min(255, math.max(0, (y - (xoff)) * 16))
			temp:setPixel(x, y, 255, 255, 255, a)
		end
	end
	img.dial = love.graphics.newImage(temp)
	temp = love.image.newImageData(20, 600)
	temp:mapPixel(function(x, y, r, g, b, a) local c = love.math.random(192, 255) - (y / 4) return c, c, c, 255 end)
	img.bg = love.graphics.newImage(temp)
end

function love.update(dt)
	timer = timer + dt
	if ss ~= os.date("%S") then
		timer = 0
		ss = os.date("%S")
	end
	dials[1] = (os.date("%I") / 6) * math.pi
	dials[2] = (os.date("%M") / 30) * math.pi
	dials[3] = ((timer + os.date("%S")) / 30) * math.pi
	dials[2] = dials[2] + (dials[3] / 60)
	dials[1] = dials[1] + (dials[2] / 12)
end

function love.draw()
	love.graphics.setColor(220, 212, 204)
	love.graphics.draw(img.bg, 0, 0, 0, 40, 1)
	for i = 1, 3 do
		love.graphics.setColor(0, 0, 0, 127)
		love.graphics.circle('fill', 147 + (i-1) * 256, 203, 115, 128)
		love.graphics.setColor(237, 226, 194)
		love.graphics.draw(img.face[i], 16 + (i-1) * 256, 72)
		love.graphics.circle('line', 143.5 + (i-1) * 256, 199.5, 115, 128)
		love.graphics.setColor(0, 0, 0, 127)
		love.graphics.draw(img.dial, 143 + (i-1) * 256, 204, dials[i], 1, 1, 8, 120)
		love.graphics.setColor(201, 69, 47)
		love.graphics.draw(img.dial, 143 + (i-1) * 256, 200, dials[i], 1, 1, 8, 120)
	end
end

[DaedalusYoung]

And after that, I was inspired to play some more with love.math.noise, so I created Doodle #5:

"Rolling Hills"

aka "Ain't No Creeper Gon' Blow Me Up Now"

Code: Select all

--[[ CODE DOODLE #5 by DaedalusYoung ]]--
--[[          Rolling Hills          ]]--

local map = {}
local width = 16
local height = 16
local timer = 0
local waveheight = 50
local wavesize = 5
local blockmode = false
local keytimer = 0
local keyinput = true

function love.load()
	love.window.setTitle("Rolling Hills")
	for y = 1, height do
		map[y] = {}
		for x = 1, width do
			map[y][x] = 0
		end
	end
end

function love.update(dt)
	timer = timer + dt
	if not keyinput then
		keytimer = keytimer + dt
		if keytimer >= 0.04 then
			keytimer = 0
			keyinput = true
		end
	else
		if love.keyboard.isDown("a", "d", "q", "e") then
			keyinput = false
		end
		if love.keyboard.isDown("a") then
			waveheight = math.floor(waveheight - 0.5)
		end
		if love.keyboard.isDown("d") then
			waveheight = math.ceil(waveheight + 0.5)
		end
		waveheight = math.min(100, math.max(1, waveheight))
		if love.keyboard.isDown("q") then
			wavesize = math.floor((wavesize * 10) - 0.5) / 10
		end
		if love.keyboard.isDown("e") then
			wavesize = math.ceil((wavesize * 10) + 0.5) / 10
		end
		wavesize = math.min(15, math.max(1, wavesize))
	end
	for y = 1, height do
		map[y] = {}
		for x = 1, width do
			map[y][x] = love.math.noise(x / wavesize, y / wavesize, timer / 4)
		end
	end
end

function love.draw()
	for y = 1, height do
		for x = 1, width do
			local x1 = (x * 24) - (y * 24) + 400
			local x2 = x1 + 22
			local x3 = x1
			local x4 = x1 - 22
			local val = map[y][x] * waveheight
			if blockmode then
				val = val - ((val + 10) % 20)
			end
			local y1 = (((y * 24) + (x * 24)) / 2) + (100 - val)
			local y2 = y1 + 11
			local y3 = y1 + 22
			local y4 = y1 + 11
			--left side
			love.graphics.setColor(32, 147, 32)
			love.graphics.polygon('fill', x3, y3, x4, y4, x4, y4 + 4, x3, y3 + 4)
			love.graphics.setColor(104, 68, 33)
			love.graphics.polygon('fill', x3, y3 + 4, x4, y4 + 4, x4, y4 + 20, x3, y3 + 20)
			love.graphics.setColor(33, 33, 33)
			love.graphics.polygon('fill', x3, y3 + 20, x4, y4 + 20, x4, y4 + 80, x3, y3 + 80)
			love.graphics.setColor(68, 68, 68)
			love.graphics.polygon('fill', x3, y3 + 21, x4, y4 + 21, x4, y4 + 40, x3, y3 + 40)
			love.graphics.polygon('fill', x3, y3 + 41, x4, y4 + 41, x4, y4 + 60, x3, y3 + 60)
			--right side
			love.graphics.setColor(25, 116, 25)
			love.graphics.polygon('fill', x2, y2, x3, y3, x3, y3 + 4, x2, y2 + 4)
			love.graphics.setColor(76, 50, 25)
			love.graphics.polygon('fill', x2, y2 + 4, x3, y3 + 4, x3, y3 + 20, x2, y2 + 20)
			love.graphics.setColor(25, 25, 25)
			love.graphics.polygon('fill', x2, y2 + 20, x3, y3 + 20, x3, y3 + 80, x2, y2 + 80)
			love.graphics.setColor(50, 50, 50)
			love.graphics.polygon('fill', x2, y2 + 21, x3, y3 + 21, x3, y3 + 40, x2, y2 + 40)
			love.graphics.polygon('fill', x2, y2 + 41, x3, y3 + 41, x3, y3 + 60, x2, y2 + 60)
			--top side
			love.graphics.setColor(43, 198, 43)
			love.graphics.polygon('fill', x1, y1, x2, y2, x3, y3, x4, y4)
			love.graphics.setColor(25, 116, 25)
			love.graphics.polygon('line', x1, y1, x2, y2, x3, y3, x4, y4)
		end
	end
	love.graphics.setColor(255, 255, 255)
	love.graphics.print("Wave size: " .. wavesize .. "  [Q] and [E] to change\nWave height: " .. waveheight .. "  [A] and [D] to change\n[B] to toggle Block Mode", 16, 16)
end

function love.keypressed(k)
	if k == "b" then
		blockmode = not blockmode
	end
end

[Germanunkol]

... it's ... so ... beautiful!

And with just 100 lines of code and no graphic assets... well done!

[OttoRobba]

And after that, I was inspired to play some more with love.math.noise, so I created Doodle #5:

"Rolling Hills"

aka "Ain't No Creeper Gon' Blow Me Up Now"

Dwarf Fortress game in LÖVE... my body is ready.