enemies follow player

Chat.lua

@@ -4,8 +4,9 @@ local lg = love.graphics
 
 
 function Chat(x, y, level)
-  local CHAT_SPEED = math.random(50) + (level * 2)
+  local CHAT_SPEED = math.random(30) + (level * 2)
   local vel = -1
+  local life = 5
 
   if math.random() < 0.5 then
     vel = 1
@@ -18,27 +19,27 @@ function Chat(x, y, level)
     x_vel = math.random() * CHAT_SPEED * vel,
     y_vel = math.random() * CHAT_SPEED * vel,
     radius = 30,
+    life = 5,
 
     draw = function(self)
       lg.draw(self.sprite, self.x, self.y, 0, 1, 1, self.sprite:getWidth() / 2, self.sprite:getHeight() / 2)
       lg.circle("line", self.x, self.y, self.radius)
     end,
 
-    move = function(self, dt)
+    move = function(self, player_x, player_y, dt)
-      self.x = self.x + self.x_vel * dt
+      -- direction is the vector from the enemy to the player
-      self.y = self.y + self.y_vel * dt
+      local direction_x = player_x - self.x
+      local direction_y = player_y - self.y
+      local distance = math.sqrt(direction_x * direction_x + direction_y * direction_y)
 
-      if self.x + self.radius < 0 then
+      if dist ~= 0 then -- avoid division by zero
-        self.x = love.graphics.getWidth() + self.radius
+          self.x = self.x + direction_x / distance * CHAT_SPEED * dt
-      elseif self.x - self.radius > love.graphics.getWidth() then
+          self.y = self.y + direction_y / distance * CHAT_SPEED * dt
-        self.x = -self.radius
       end
+    end,
 
-      if self.y + self.radius < 0 then
+    decreaseLife = function(self)
-        self.y = love.graphics.getHeight() + self.radius
+      self.life = self.life - 1
-      elseif self.y - self.radius > love.graphics.getHeight() then
-        self.y = -self.radius
-      end
     end,
 
     destroy = function(self, chat_table, index)

Game.lua

@@ -24,13 +24,11 @@ function Game()
 
       chats = {}
 
-      local chat_x = math.floor(math.random(love.graphics.getWidth()  ))
+      for i = 1, 1 do
+        local chat_x = math.floor(math.random(love.graphics.getWidth()))
         local chat_y = math.floor(math.random(love.graphics.getHeight()))
-
+        table.insert(chats, i, Chat(chat_x, chat_y, self.level))
-      table.insert(chats, 1, Chat(chat_x, chat_y, self.level))
+      end
-      table.insert(chats, 2, Chat(chat_x, chat_y, self.level))
-      table.insert(chats, 3, Chat(chat_x, chat_y, self.level))
-      table.insert(chats, 4, Chat(chat_x, chat_y, self.level))
 
     end
   }

Player.lua

@@ -39,7 +39,6 @@ function Player(debugging)
       end
     end,
     destroyBan = function (self, index)
-      print(self.ban, index)
       table.remove(self.bans, index)
     end,
 
@@ -50,7 +49,6 @@ function Player(debugging)
       if love.keyboard.isDown('left') then
         self.angle = self.angle - self.rotation_speed * dt
         self.facing = self.angle
-        print(self.facing)
       end
       if love.keyboard.isDown('right') then
         self.angle = self.angle + self.rotation_speed * dt

main.lua

@@ -64,7 +64,7 @@ function love.update(dt)
           end
       end
 
-      chat:move(dt)
+      chat:move(player.x, player.y, dt)
   end
 
   elseif game.state.menu then