commit 6931440b59f501cf04b424bb6b7bde4383113c69
Author: Astoria <netadmin@broken-moon.net>
Date:   Sat Dec 31 19:55:50 2022 -0600

    drawtest

diff --git a/tabletcam b/tabletcam
new file mode 100644
index 0000000..c78a429
--- /dev/null
+++ b/tabletcam
@@ -0,0 +1,21 @@
+local args = {...}
+gpuleft = peripheral.wrap("left")
+gpuright = peripheral.wrap("right")
+while true do
+ local event,imagedata = os.pullEvent()
+ if event == "tablet_image" then
+  local textureIDright = gpuright.import(imagedata)
+  local textureIDleft = gpuleft.import(imagedata)
+  gpuright.setColor(255,255,255)
+  gpuleft.setColor(255,255,255)
+  gpuright.fill()
+  gpuleft.fill()
+  gpuright.drawTexture(textureIDright,0,0)
+  gpuleft.drawTexture(textureIDleft,0,0)
+  print("Drew tabletimage from textureID:"..textureIDleft)
+  gpuright.freeTexture(textureIDright)
+  gpuleft.freeTexture(textureIDleft)
+
+ end
+end
+
diff --git a/testGpu b/testGpu
new file mode 100644
index 0000000..1e62cc3
--- /dev/null
+++ b/testGpu
@@ -0,0 +1,2 @@
+gpu = peripheral.wrap("right")
+
diff --git a/tutorial b/tutorial
new file mode 100644
index 0000000..b9cf6f1
--- /dev/null
+++ b/tutorial
@@ -0,0 +1,381 @@
+os.loadAPI("draw/drawtext")
+for i, v in pairs(peripheral.getNames()) do
+	if peripheral.getType(v) == "GPU" then
+		gpu = peripheral.wrap(v) -- So can't wait for peripheral.find
+		break
+	end
+end
+
+if not gpu then
+	error("Could not find a GPU connected to the computer!",0)
+end
+
+local sectex
+
+function fadeDouble(v,x,y,r,g,b)
+	x, y = x or 0, y or 0
+	r,g,b = r or 0,g or 0,b or 0
+	gpu.push()
+	gpu.scale(2,2)
+	for i=1,16 do
+		gpu.setColor(r,g,b,32)
+		drawtext.drawText(gpu, v,x,y)
+		sleep(0)
+	end
+	gpu.setColor(r,g,b)
+	drawtext.drawText(gpu, v,x,y)
+	gpu.pop()
+end
+
+function fade(v,x,y,r,g,b)
+	x, y = x or 0, y or 0
+	r,g,b = r or 0,g or 0,b or 0
+	for i=1,4 do
+		gpu.setColor(r,g,b,64)
+		drawtext.drawText(gpu, v,x,y)
+		sleep(0)
+	end
+	gpu.setColor(r,g,b)
+	drawtext.drawText(gpu, v,x,y)
+end
+
+local ny = 0
+function fadeNext(v,r,g,b)
+	fade(v,0,ny,r,g,b)
+	ny = ny+8
+end
+function fadeDoubleNext(v,r,g,b)
+	fadeDouble(v,0,ny,r,g,b)
+	ny = ny+16
+end
+
+function fadeScreen()
+	--copy screen to sectex
+	for i=0,255,16 do
+		gpu.setColor(255,255,255,i)
+		gpu.filledRectangle(0,0,gpu.getSize(0))
+		sleep(0)
+	end
+	gpu.setColor(255,255,255)
+	gpu.fill()
+	ny = 0
+end
+
+local examples = {
+	{"Colors and Fills",
+	function()
+		fade "Screen filling"
+		fade("gpu.setColor(128,128,255)",0,8)
+		fade("gpu.fill()",0,16)
+		fade("Click to continue",0,24)
+		os.pullEvent("monitor_up")
+		
+		gpu.setColor(128,128,255)
+		gpu.fill()
+		
+		fade "The screen is filled"
+		fade("Click to continue",0,8)
+		os.pullEvent("monitor_up")
+		fadeScreen()
+	end
+	},
+	{"Rectangles",
+	function()
+		fade "Outlined Rectangles:"
+		fade("gpu.rectangle(25,25,50,50)",0,8)
+		gpu.setColor(128,128,255)
+		gpu.rectangle(25,25,50,50)
+		
+		fade("Click to continue",0,16)
+		os.pullEvent("monitor_up")
+		fadeScreen()
+		
+		fade "Filled Rectangles:"
+		fade("gpu.filledRectangle(25,25,50,50)",0,8)
+		gpu.setColor(128,128,255)
+		gpu.filledRectangle(25,25,50,50)
+		
+		fade("Click to continue",0,16)
+		os.pullEvent("monitor_up")
+		fadeScreen()
+	end},
+	{"Textures",
+	function()
+		fadeNext("In CCLights2, you can use")
+		fadeNext("gpu.createTexture(width,height)")
+		fadeNext("to create textures.")
+		fadeNext("The above method will return a number")
+		fadeNext("That number is the texture id")
+		fadeNext("Click to continue")
+		os.pullEvent("monitor_up")
+		fadeScreen()
+		
+		fadeNext("Also, textures come with a cost")
+		fadeNext("The ingame GPU starts with 8kb of RAM")
+		fadeNext("A texture will use (w*h)/32 bytes of RAM")
+		fadeNext("There are methods to measure RAM usage")
+		fadeNext("gpu.getUsedMemory()")
+		fadeNext("gpu.getFreeMemory()")
+		fadeNext("gpu.getTotalMemory()")
+		fadeNext("Click to continue")
+		os.pullEvent("monitor_up")
+		fadeScreen()
+		
+		fadeNext("Because CCLights2 has limited texture memory,")
+		fadeNext("you can free textures.")
+		fadeNext("gpu.freeTexture(id)")
+		fadeNext("Given an id, the above will free that texture")
+		fadeNext("Click to continue")
+		os.pullEvent("monitor_up")
+		fadeScreen()
+		
+		fadeNext("In CCLights2, the screen texture has an id of 0")
+		fadeNext("You can use the screen like a texture")
+		fadeNext("gpu.drawTexture(0,64,64)")
+		sleep(0.5)
+		gpu.setColor(255,255,255)
+		gpu.drawTexture(0,64,64)
+		fadeNext("Now the screen is onscreen!")
+		fadeNext("Click to continue")
+		os.pullEvent("monitor_up")
+		fadeScreen()
+		
+		fadeNext("Textures in CCLights2 are framebuffers")
+		fadeNext("This means that you can draw to them")
+		fadeNext("gpu.bindTexture(id) allows you to do that")
+		fadeNext("gpu.bindTexture(0) will draw to the screen")
+		fadeNext("Click to continue")
+		os.pullEvent("monitor_up")
+		fadeScreen()
+		
+		fadeNext("Example Code:")
+		
+		fadeNext("local tex = gpu.createTexture(32,32)")
+		
+		fadeNext("gpu.bindTexture(tex)")
+		fadeNext("gpu.setColor(255,0,0)")
+		fadeNext("gpu.filledRectangle(8,8,16,16)")
+		fadeNext("gpu.bindTexture(0)")
+		fadeNext("gpu.setColor(255,255,255)")
+		fadeNext("gpu.drawTexture(tex,64,64)")
+		fadeNext("gpu.drawTexture(tex,128,128)")
+		fadeNext("gpu.freeTexture(tex)")
+		
+		local tex = gpu.createTexture(32,32)
+		gpu.bindTexture(tex)
+		gpu.setColor(255,0,0)
+		gpu.filledRectangle(8,8,16,16)
+		gpu.bindTexture(0)
+		gpu.setColor(255,255,255)
+		gpu.drawTexture(tex,64,64)
+		gpu.drawTexture(tex,128,128)
+		gpu.freeTexture(tex)
+		
+		fadeNext("Click to continue")
+		os.pullEvent("monitor_up")
+		fadeScreen()
+		
+		fadeNext("That example did the following:")
+		fadeNext("Created a 32 by 32 texture")
+		fadeNext("Binded the new texture")
+		fadeNext("Set the draw color to red")
+		fadeNext("Rendered a rectangle on the texture")
+		fadeNext("Binded the screen")
+		fadeNext("Set the draw color to white")
+		fadeNext("Draw the texture at 64,64")
+		fadeNext("Draw the texture at 128,128")
+		fadeNext("Free the memory allocated for the texture")
+		fadeNext("Click to continue")
+		os.pullEvent("monitor_up")
+		fadeScreen()
+	end},
+	{"Importing Images",
+	function()
+		local lp = fs.combine(shell.getRunningProgram(),"..")
+		fs.copy(fs.combine(lp,"tutorialFiles/smile.png"),"temp.png")
+		local t = gpu.import("temp.png")
+		fs.delete("temp.png")
+		fade("Importing images:")
+		fade("local texture = gpu.import(\"smile.png\")",0,8)
+		fade("gpu.drawTexture(texture,64,64)",0,16)
+		fade("gpu.freeTexture(texture)",0,24)
+		gpu.setColor(255,255,255)
+		gpu.drawTexture(t,64,64)
+		gpu.freeTexture(t)
+		fade("Click to continue",0,32)
+		os.pullEvent("monitor_up")
+		fadeScreen()
+	end}
+}
+
+function runExample(i)
+	fadeDouble("Example "..i)
+	fade(examples[i][1],0,16)
+	fade("Click to continue",0,24)
+	os.pullEvent("monitor_up")
+	fadeScreen()
+	
+	examples[i][2]()
+end
+
+function askQuit()
+	gpu.bindTexture(sectex)
+	gpu.setColor(255,255,255)
+	gpu.drawTexture(0,0,0)
+	gpu.blur(sectex)
+	gpu.bindTexture(0)
+	
+	for i=0,255,16 do
+		gpu.setColor(255,255,255,i)
+		gpu.drawTexture(sectex,0,0)
+		gpu.setColor(0,0,0,math.floor(i/4))
+		gpu.filledRectangle(0,0,gpu.getSize(0))
+		sleep(0)
+	end
+	
+	fadeDouble("Bye!",0,0,255,255,255)
+	fade("Click to continue",0,16)
+	os.pullEvent("monitor_up")
+	
+	for i=0,255,16 do
+		gpu.setColor(0,0,0,i)
+		gpu.filledRectangle(0,0,gpu.getSize(0))
+		sleep(0)
+	end
+end
+
+local s,e = pcall(function()
+	local w,h = gpu.getSize(0)
+	sectex = gpu.createTexture(w,h)
+	local q = false
+	
+	parallel.waitForAny(function()
+		for i=0,255,16 do
+			gpu.setColor(i,i,i)
+			gpu.fill()
+			sleep(0)
+		end
+		gpu.setColor(255,255,255)
+		gpu.fill()
+
+		fadeDouble("CCLights2 Tutorial",0,0)
+		fade("Click to continue",0,16)
+		local exm = "Click me for the examples menu"
+		fade(exm,0,24)
+		gpu.setColor(255,0,0)
+		gpu.filledRectangle(w-4,h-4,4,4)
+		
+		local _,b,x,y = os.pullEvent("monitor_up")
+		
+		if x>=0 and x<=gpu.getTextWidth(exm) and y>=24 and y<=32 then
+			fadeScreen()
+			--load example menu
+			--so, we bind to sectex, draw the menu, then we fade in
+			
+			local ent = math.floor(h/9)
+			local tw = gpu.getTextWidth("<")
+			
+			local function redraw(i)
+				gpu.bindTexture(sectex)
+				gpu.setColor(0,0,0)
+				gpu.fill()
+				
+				gpu.setColor(64,64,64)
+				gpu.filledRectangle(0,0,tw,h)
+				gpu.filledRectangle(w-tw,0,tw,h)
+				
+				gpu.setColor(0,0,0)
+				drawtext.drawText(gpu, "<",0,h/2-3)
+				drawtext.drawText(gpu, ">",w-tw,h/2-3)
+				
+				gpu.setColor(128,128,128)
+				gpu.filledRectangle(tw,0,w-tw-tw,h)
+				
+				local x = tw+1
+				local y = 1
+				for i=i, i+ent-1 do
+					if examples[i] then
+						gpu.setColor(0,0,0)
+						drawtext.drawText(gpu, " - "..examples[i][1],x,y)
+					end
+					gpu.setColor(192,192,192)
+					gpu.line(x-1,y-1,x-1+w-tw-tw,y-1)
+					gpu.line(x-1,y+7,x-1+w-tw-tw,y+7)
+					y = y+9
+				end
+				gpu.bindTexture(0)
+			end
+			
+			redraw(1)
+			for i=0,255,16 do
+				gpu.setColor(255,255,255)
+				gpu.fill()
+				gpu.setColor(255,255,255,i)
+				gpu.drawTexture(sectex,0,0)
+				sleep(0)
+			end
+			while true do
+				gpu.drawTexture(sectex,0,0)
+				local _,b,mx,my = os.pullEvent("monitor_up")
+				
+				local x = tw+1
+				local y = 1
+				for i=1, 1+ent-1 do
+					if examples[i] then
+						if mx>=x-1 and mx<=x-1+w-tw-tw and my>=y-1 and my<=y+8 then
+							fadeScreen()
+							runExample(i)
+							redraw(1)
+							for i=0,255,16 do
+								gpu.setColor(255,255,255)
+								gpu.fill()
+								gpu.setColor(255,255,255,i)
+								gpu.drawTexture(sectex,0,0)
+								sleep(0)
+							end
+						end
+					end
+					y = y+9
+				end
+			end
+		else
+			fadeScreen()
+			for i=1, #examples do
+				runExample(i)
+			end
+			
+			fade("You are finished with the CCLights2 tutorial!")
+			fade("Click to continue",0,8)
+			os.pullEvent("monitor_up")
+			fadeScreen()
+		end
+	end,function()
+		while true do
+			local _,b,x,y = os.pullEvent("monitor_up")
+		
+			if x>=w-4 and y>=h-4 then
+				q = true
+				return
+			end
+		end
+	end)
+	if q then askQuit() end
+end)
+
+if not s then
+	print(s)
+	if sectex then gpu.freeTexture(sectex) end
+	gpu.setColor(0,0,0)
+	gpu.fill()
+	sleep(0)
+	gpu.setColor(255,255,255)
+	gpu.push()
+	gpu.scale(2,2)
+	drawtext.drawText(gpu, "Well, that was bad...",0,0)
+	gpu.pop()
+	sleep(0)
+	drawtext.drawText(gpu, e,0,16)
+	print(e)
+else
+	gpu.freeTexture(sectex)
+end