Can now cancel out of "waiting for game"

Trail data is also now optimized, now only sending the player number instead of the whole value.
This also fixes the "X" animation upon losing, as only P1 could see that before.

tron.lua

@@ -373,7 +373,7 @@ isPuttingDown = false
 local putTrailXY = function(x, y, p)
 	trail[y] = trail[y] or {}
 	trail[y][x] = {
-		player = player[p],
+		player = p,
 		age = 0
 	}
 end
@@ -385,10 +385,7 @@ end
 local getTrail = function(x, y)
 	if trail[y] then
 		if trail[y][x] then
-			if doAge then
-				trail[y][x].age = trail[y][x].age + 1
-			end
-			return trail[y][x].player.char, trail[y][x].player.color, trail[y][x].age
+			return player[trail[y][x].player].char, player[trail[y][x].player].color, trail[y][x].age
 		end
 	end
 	return false
@@ -554,14 +551,12 @@ local drawGrid = function(x, y, onlyDrawGrid, useSetVisible)
 	end
 end
 
-local render = function()
-	tsv(false)
+local render = function(useSetVisible)
 	local p = player[you]
-	drawGrid(scrollX + scrollAdjX, scrollY + scrollAdjY)
+	drawGrid(scrollX + scrollAdjX, scrollY + scrollAdjY, false, useSetVisible)
 	termsetCursorPos(1,1)
 	termsetTextColor(player[you].color[1])
 	term.write("P" .. you)
-	tsv(true)
 end
 
 local pleaseWait = function()
@@ -583,9 +578,9 @@ local pleaseWait = function()
 			tID = os.startTimer(0.5)
 			periods = (periods % maxPeriods) + 1
 			term.clearLine()
-		elseif evt[1] == "new_game" then
-			return evt[2]
-		end
+		elseif evt[1] == "key" and evt[2] == keys.q then
+            return
+        end
 	end
 end
 
@@ -603,7 +598,7 @@ local startCountdown = function()
 	scrollX = player[you].x - mathfloor(scr_x / 2)
 	scrollY = player[you].y - mathfloor(scr_y / 2)
 	for i = 3, 1, -1 do
-		render()
+		render(true)
 		termsetTextColor(colors.white)
 		for x = 1, #cMessage+1 do
 			termsetCursorPos(-1 + x + mathfloor(scr_x / 2 - (#cMessage + #cName) / 2), mathfloor(scr_y / 2) + 2)
@@ -742,7 +737,7 @@ local scrollToPosition = function(x, y)
 	for i = 1, 16 do
 		scrollX = (scrollX + x - (scr_x/2)) / 2
 		scrollY = (scrollY + y - (scr_y/2)) / 2
-		render()
+		render(true)
 		sleep(0.05)
 	end
 end
@@ -765,7 +760,7 @@ local gridDemo = function()
 		if keysDown[keys.q] then
 			return "end"
 		end
-		drawGrid(scrollX, scrollY)
+		drawGrid(scrollX, scrollY, false, true)
 		ageTrails()
 		sleep(gameDelay)
 	end
@@ -917,7 +912,7 @@ local game = function()
 			scrollX = p.x - mathfloor(scr_x / 2)
 			scrollY = p.y - mathfloor(scr_y / 2)
 
-			render()
+			render(true)
 		end
 	end
 end
@@ -955,6 +950,7 @@ local networking = function()
 					waitingForGame = false
 					netKeysDown = {}
 					os.queueEvent("new_game", gameID)
+                    return gameID
 
 				elseif msg.gameID == gamename then
 					if not isHost then
@@ -997,6 +993,7 @@ local helpScreen = function()
 end
 
 local main = function()
+    local rVal
 	while true do
 		decision = titleScreen()
 		lockInput = false
@@ -1023,10 +1020,12 @@ local main = function()
 				gameDelay = gameDelayInit,
 				grid = initGrid
 			})
-			parallel.waitForAny(pleaseWait, networking)
+			rVal = parallel.waitForAny(pleaseWait, networking)
 			sleep(0.1)
-			startCountdown()
-			parallel.waitForAny(getInput, game, networking)
+            if rVal == 2 then
+                startCountdown()
+                parallel.waitForAny(getInput, game, networking)
+            end
 		elseif decision == "help" then
 			helpScreen()
 		elseif decision == "demo" then