fixed logo emission

.gitignore

@@ -1,2 +1,3 @@
 *.log
+*.p8l
 demos

yoyodyne.p8

@@ -28,7 +28,7 @@ yyl = {
 	vx = 0,
 	vy = -1,
 	done = false,
-	maxt = 60,
+	maxt = 20,
 }
 
 function dist(x1, y1, x2, y2)
@@ -82,6 +82,7 @@ function yyl:chk_stop(p)
 	-- round to nearest whole
 	seq = 128*flr(p.y+0.5) + flr(p.x+0.5)
 	if self.filled[seq] == p.c then
+		p.vx = 0
 		p.vy = 0
 		p.x = flr(p.x+0.5)
 		p.y = flr(p.y+0.5)
@@ -111,8 +112,8 @@ function yyl:update()
 		for c in all{8, 11, 12} do
 			add(self.ps, 
 				{x=self.ex, y=self.ey, c=c,
-				 vy=rnd(2)+2*self.vy,
-				 vx=rnd(2)+2*self.vx}
+				 vy=(rnd(2)+1)*self.vy,
+				 vx=(rnd(2)+1)*self.vx}
 			)
 		end
 		
@@ -122,16 +123,28 @@ function yyl:update()
 		end
 	
 		-- move emitter
-		if self.ex < 128 then
+		if self.ey == 128 and self.ex < 128 then
 			self.ex += 1
-		elseif self.ex == 128 then
+			self.vx = 0
+			self.vy = -1
+		elseif self.ex == 128 and self.ey > 0 then
+			self.ey -= 1
+			self.vx = -1
+			self.vy = 0
+		elseif self.ey == 0 and self.ex > 0 then
+			self.ex -= 1
+			self.vx = 0
+			self.vy = 1
+		else
 			self.ey += 1
+			self.vx = 1
+			self.vy = 0
 		end
 	end
 	
 	-- update pixels
 	for i, p in pairs(self.ps) do
-		if p.vy > 0 then
+		if p.vy != 0 or p.vx != 0 then
 			p.x += p.vx
 			p.y += p.vy
 			self:chk_stop(p)