Create eyestrain.lua

eyestrain.lua

@@ -0,0 +1,68 @@
+local scr_x, scr_y = term.getSize()
+
+local ballX, ballY = math.floor(scr_x / 2), math.floor(scr_y / 2)
+
+local tsv = function(visible)
+	if term.current().setVisible then
+		return term.current().setVisible(visible)
+	end
+end
+
+local dist = function(x1, y1, x2, y2)
+	return math.sqrt((x2 - x1)^2 + (y2 - y1)^2)
+end
+
+local disadvantageRoll = function(min, max, times)
+	local output = math.huge
+	for i = 1, times do
+		output = math.min(output, math.random(min, max))
+	end
+	return output
+end
+
+local wipeScreen = function(alternate)
+	local i = alternate
+	tsv(false)
+	for y = 1, scr_y do
+		i = not i
+		term.setCursorPos(1, y)
+		for x = 1, scr_x do
+			if i then
+				if (dist(x, y * 4/3, ballX, ballY) < disadvantageRoll(3,100, 12)) then
+					term.blit("\153", "0", "e")
+				else
+					term.blit("\153", "0", "f")
+				end
+			else
+				if (dist(x, y * 4/3, ballX, ballY) < disadvantageRoll(3,100, 12)) then
+					term.blit("\153", "e", "0")
+				else
+					term.blit("\153", "f", "0")
+				end
+			end
+		end
+	end
+	tsv(true)
+end
+
+local setPalette = function(i)
+	local v1 = (2 + math.sin(math.rad(i))) / 3
+	local v2 = (2 + math.sin(math.rad(i + 90))) / 3
+	local v3 = v1 - 0.1
+	term.setPaletteColor(colors.black, v2, v1, v3)
+	term.setPaletteColor(colors.white, v1, v2, v2)
+	term.setPaletteColor(colors.red, v2, v3, v3)
+end
+
+term.clear()
+
+local i = 0
+while true do
+	i = i + 1
+	ballX = ((math.sin(math.rad(i * 2)) + 1) / 2) * (scr_x - 10) + 5
+	ballY = ((math.sin(math.rad(i * 3)) + 1) / 2) * (scr_y - 6) + 3
+	wipeScreen(i % 2 == 0)
+	--wipeScreen(true)
+	setPalette(i)
+	sleep(0)
+end