function to improve entities moving on collisions and fixed accordingly

made math.round()
changed vector() and fixed accordingly

code/entities/particle.lua

@@ -89,26 +89,32 @@ function Particle:handleAnimation()
 	end
 end
 
-function Particle:doPhysics()
+function Particle:doLogic()
 	-- adjust speed
 	if self.speed_increase ~= 0 then
 		self.speed = self.speed + self.speed_increase
 		self.vel.x = self.speed * math.cos(self.direction)
 		self.vel.y = self.speed * math.sin(self.direction)
 	end
-	-- move
-	self:moveWithCollision()
-
-	if self.light ~= nil then
-		self:adjustLight()
-		self.light.range = self.light_range * self.sprite_alpha/2
-	end
 
 	if self.time ~= nil then
 		if self.timer >= self.time then self:kill() end
 	end
 end
 
+function Particle:doPhysics()
+	-- horizontal collision
+	self:moveX(
+			self.vel.x
+	)
+	-- vertical collision
+	self:moveY(
+		self.vel.y
+	)
+	-- final position
+	self:adjustLight()
+end
+
 function Particle:debug()
 	-- draw center CYAN
 	love.graphics.setColor(0,1,1)