working on enemy movement

entities/enemy.lua

@@ -23,21 +23,26 @@ function Enemy:new(x, y, radius, playableArea)
 	self.fireRate = 1
 	self.destroy = false
 
-	self.hitbox = { (self.x + 20), (self.x + 20), (self.y + 20), (self.y + 44) }
+	self.height = 22
+	self.width = 24
+	self.x_offset = 18
+	self.y_offset = 20
+
+	self.hitbox = {
+		(self.x + self.x_offset),
+		(self.x + self.x_offset + self.width),
+		(self.y + self.y_offset),
+		(self.y + self.y_offset + self.height),
+	}
+
 	self.move_bounds = self:setMoveBounds()
-	--print("Move Bounds: ", self.move_bounds[1], " , ", self.move_bounds[2])
+	print("Move Bounds: ", self.move_bounds[1], " , ", self.move_bounds[2])
 	enemyBullets = {}
 end
 
 function Enemy:draw()
 	--draw stuff
-	love.graphics.rectangle(
-		"line",
-		self.hitbox[1],
-		self.hitbox[3],
-		(self.hitbox[2] - self.hitbox[1]),
-		(self.hitbox[4] - self.hitbox[3])
-	)
+	love.graphics.rectangle("line", self.hitbox[1], self.hitbox[3], self.width, self.height)
 	love.graphics.draw(self.image, self.x, self.y, 0, 1, 1)
 
 	for _, v in ipairs(enemyBullets) do
@@ -51,12 +56,15 @@ function Enemy:update(dt, player)
 	local window_height = love.graphics.getHeight()
 
 	self.x = self.x + self.speed * dt
-	self.hitbox = { (self.x + 18), (self.x + 44), (self.y + 20), (self.y + 44) }
+	--self.hitbox = { (self.x + 18), (self.x + 44), (self.y + 20), (self.y + 44) }
+	self:setHitbox()
 
 	--movement
-	if self.x < self.move_bounds[1] then
+	if self.hitbox[1] < self.move_bounds[1] then
+		self.x = self.move_bounds[1]
 		self.speed = -self.speed
-	elseif self.x > self.move_bounds[2] then
+	elseif self.hitbox[2] > self.move_bounds[2] then
+		self.x = self.move_bounds[2] - self.width - self.x_offset
 		self.speed = -self.speed
 	end
 
@@ -85,7 +93,8 @@ end
 
 --shoot at the player a variable number of seconds
 function Enemy:fire()
-	local fire_origin = { self.x + 26, self.y + 44 }
+	--local fire_origin = { self.x + 26, self.y + 44 }
+	local fire_origin = { (self.x + (self.width / 2)), self.y + self.height }
 	if love.timer.getTime() - fireTime > self.fireRate then
 		table.insert(enemyBullets, Blaster(fire_origin[1], fire_origin[2], "enemy"))
 		fireTime = love.timer.getTime()
@@ -97,13 +106,24 @@ function Enemy:setMoveBounds()
 
 	if (self.hitbox[1] - self.move_radius) < self.playableLeft then
 		result[1] = self.playableLeft
-		result[2] = self.playableLeft + self.hitbox[1] + move_radius
+		--result[2] = self.playableLeft + self.hitbox[1] + self.move_radius
+		result[2] = self.playableLeft + (self.move_radius * 2)
 	elseif (self.hitbox[2] + self.move_radius) > self.playableRight then
+		--result[1] = self.playableRight - self.hitbox[2] - self.move_radius
+		result[1] = self.playableRight - (self.move_radius * 2)
 		result[2] = self.playableRight
-		result[1] = self.playableRight - self.hitbox[2] - move_radius
 	else
 		result[1] = self.x - self.move_radius
 		result[2] = self.x + self.move_radius
 	end
 	return result
 end
+
+function Enemy:setHitbox()
+	self.hitbox = {
+		(self.x + self.x_offset),
+		(self.x + self.width + self.x_offset),
+		(self.y + self.y_offset),
+		(self.y + self.height + self.y_offset),
+	}
+end

main.lua

@@ -16,8 +16,9 @@ function love.load()
 
 	ListOfEnemies = {}
 
-	table.insert(ListOfEnemies, Enemy(bounds[1] + 50, 100, 70, bounds))
+	table.insert(ListOfEnemies, Enemy((bounds[1] + 50), 100, 70, bounds))
 	table.insert(ListOfEnemies, Enemy((bounds[1] + bounds[2]) / 2, 125, 70, bounds))
+	table.insert(ListOfEnemies, Enemy((bounds[2] - 25), 75, 70, bounds))
 
 	--set background for space!
 	love.graphics.setBackgroundColor(27 / 255, 51 / 255, 85 / 255)