Size of characters can be changed in code

pyras.p8

@@ -19,31 +19,44 @@ end
 -- guy
 function initguy()
 	guy={
-		x=64,
+		x=flr(game.boardsize/2),
-		y=64,
+		y=flr(game.boardsize/2),
 		speed=4,
 		dead=false
 	}
 end
 
 function moveguy()
-	if (btn(⬅️)) guy.x=max(0,guy.x-guy.speed)
+	if (btn(⬅️)) then
-	if (btn(➡️)) guy.x=min(127,guy.x+guy.speed)
+		guy.x=max(0,guy.x-guy.speed)
-	if (btn(⬆️)) guy.y=max(0,guy.y-guy.speed)
+	end
-	if (btn(⬇️)) guy.y=min(127,guy.y+guy.speed)
+	if (btn(➡️)) then
+		guy.x=min(game.boardsize,guy.x+guy.speed)
+	end
+	if (btn(⬆️)) then
+		guy.y=max(0,guy.y-guy.speed)
+	end
+	if (btn(⬇️)) then
+		guy.y=min(game.boardsize,guy.y+guy.speed)
+		end
 end
 
 function drawguy()
-	pset(guy.x,guy.y,11)
+	local spd=guy.speed
-	-- guides
+	drawpixel(guy.x,guy.y,11)
-	pset(guy.x-guy.speed,guy.y-guy.speed,6)	
+	guides={
-	pset(guy.x,guy.y-guy.speed,6)	
+		{guy.x-spd,guy.y-spd},
-	pset(guy.x+guy.speed,guy.y-guy.speed,6)	
+		{guy.x    ,guy.y-spd},
-	pset(guy.x-guy.speed,guy.y,6)	
+		{guy.x+spd,guy.y-spd},
-	pset(guy.x+guy.speed,guy.y,6)	
+		{guy.x-spd,guy.y    },
-	pset(guy.x-guy.speed,guy.y+guy.speed,6)	
+		{guy.x+spd,guy.y    },
-	pset(guy.x,guy.y+guy.speed,6)	
+		{guy.x-spd,guy.y+spd},
-	pset(guy.x+guy.speed,guy.y+guy.speed,6)	
+		{guy.x    ,guy.y+spd},
+		{guy.x+spd,guy.y+spd}
+	}
+	for g in all(guides) do
+		drawpixel(g[1],g[2],6)
+	end
 end
 -->8
 -- pyras
@@ -52,8 +65,8 @@ function initpyras()
 	for i=1,game.nbpyras do
 		repeat
 			pyras[i]={
-				x=flr(rnd(128)),
+				x=flr(rnd(game.boardsize+1)),
-				y=flr(rnd(128))
+				y=flr(rnd(game.boardsize+1))
 			}
 		until abs(pyras[i].x-guy.x)>5
 		   or abs(pyras[i].y-guy.y)>5
@@ -75,23 +88,25 @@ end
 
 function drawandeatpyras()
 	for index,pyra in ipairs(pyras) do
-		if pget(pyra.x,pyra.y)==8 then
+		if getpixel(pyra.x,pyra.y)==8 then
 			sfx(0)
 			deli(pyras,index)
 		else
-			pset(pyra.x,pyra.y,8)
+			drawpixel(pyra.x,pyra.y,8)
 		end
 	end
 end
-
 -->8
 -- game
 game={
 	level=1,
-	slowdown=0.15
+	pixelsize=2
 }
 
 function initgame()
+	local pxs=game.pixelsize
+	game.boardsize=flr((127-pxs+1)/pxs)
+	game.slowdown=0.125*pxs
 	game.state=0
 	game.tick=0
 	game.nbpyras=flr(40*1.25^game.level)
@@ -156,6 +171,27 @@ function drawgame()
 	 end
 	end
 end
+-->8
+-- helpers
+
+function drawpixel(x,y,colour)
+	local size=game.pixelsize
+	rectfill(
+		x*size,
+		y*size,
+		(x+1)*size-1,
+		(y+1)*size-1,
+		colour
+	)
+end
+
+function getpixel(x,y)
+	local size=game.pixelsize
+	return pget(
+		x*size,
+		y*size
+	)
+end
 __gfx__
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