little adjustments

blaster.lua

@@ -22,3 +22,21 @@ function Blaster:update(dt)
 		self.y = self.y + self.speed * dt
 	end
 end
+
+function Blaster:checkCollision(obj)
+	local self_left = self.x
+	local self_right = self.x + self.radius * 2
+	local self_top = self.y
+	local self_bottom = self.y + self.radius * 2
+
+	local obj_left = obj.x
+	local obj_right = obj.x + obj.width
+	local obj_top = obj.y
+	local obj_bottom = obj.y + obj.height
+
+	if self_right > obj_left and self_left < obj_right and self_bottom > obj_top and self_top < obj_bottom then
+		self.destroy = true
+
+		--other blaster logic here
+	end
+end

entities/enemy.lua

@@ -13,6 +13,7 @@ function Enemy:new(x, y, radius)
 	self.health = 100
 	self.move_radius = radius
 	self.speed = 100
+	self.fireRate = 2
 
 	listOfBullets = {}
 end
@@ -58,7 +59,7 @@ end
 
 --shoot at the player a variable number of seconds
 function Enemy:fire()
-	if love.timer.getTime() - fireTime > 2 then
+	if love.timer.getTime() - fireTime > self.fireRate then
 		table.insert(listOfBullets, Blaster(self.x, self.y, "enemy"))
 		fireTime = love.timer.getTime()
 	end

ui.lua

@@ -0,0 +1,3 @@
+--display the score
+
+--display player health