Improving game speed (better code)

pyras.p8

@@ -60,12 +60,6 @@ function initpyras()
 	end
 end
 
-function drawpyras()
-	for pyra in all(pyras) do
-		pset(pyra.x,pyra.y,8)
-	end
-end
-
 function movepyras()
 	for pyra in all(pyras) do
 		if (pyra.x>guy.x) pyra.x-=1
@@ -79,24 +73,21 @@ function movepyras()
 	end
 end
 
-function eatpyras()
-	local toeat={}
-	for i,pyra in ipairs(pyras) do
-		for j=i+1,#pyras do
-			if pyra.x==pyras[j].x and pyra.y==pyras[j].y then
-				add(toeat,j)
-			end
-		end
-	end
-	for index in all(toeat) do
+function drawandeatpyras()
+	for index,pyra in ipairs(pyras) do
+		if pget(pyra.x,pyra.y)==8 then
 			sfx(0)
 			deli(pyras,index)
+		else
+			pset(pyra.x,pyra.y,8)
+		end
 	end
 end
+
 -->8
 -- game
 game={
-	level=1,
+	level=7,
 	slowdown=0.1
 }
 
@@ -114,10 +105,11 @@ function drawbg()
 	if(#pyras>99)offset+=1
 	rectfill(0,0,127,127,1)
 	print(#pyras,128-4*offset,1,7)
+	print("l:"..game.level,1,1,7)
 end
 
 function waitormove()
-	if game.tick>min(10,game.slowdown*#pyras) then
+	if game.tick>min(30,game.slowdown*#pyras) then
 		moveguy()
 		movepyras()
 		game.tick=0
@@ -130,7 +122,6 @@ function updategame()
 		if(btnp(❎))game.state=1
 	elseif game.state==1 then
 		waitormove()
-		eatpyras()
 		if guy.dead then
 		 game.state=3
 		 game.level=max(0,game.level-1)
@@ -149,7 +140,7 @@ function drawgame()
 	cls()
 	drawbg()
 	drawguy()
-	drawpyras()
+	drawandeatpyras()
 	if game.state==0 then
 		cursor(48,61,7)
 		print "press ❎"