dirtier slow() call (works a bit better)

main.lua

@@ -31,6 +31,8 @@ Area = require 'obj/Area'
 GameObject = require 'obj/GameObject'
 
 function love.load()
+    -- slowmo var
+    slow_amnt = 1
     -- table of color palette
     COLORS = {
         default = {1,1,1,1},
@@ -87,7 +89,7 @@ function love.load()
 end
 
 function love.update(dt)
-    if current_room then current_room:update(dt) end
+    if current_room then current_room:update(dt*slow_amnt) end
     input:update(dt)
     if input:pressed('f1') then gotoRoom('CircleRoom') end
     if input:pressed('f2') and DEBUG then
@@ -114,7 +116,7 @@ function love.update(dt)
         for k, v in pairs(counts) do print(k, v) end
         print("-------------------------------------")
     end
-    camera:update(dt)
+    camera:update(dt*slow_amnt)
 end
 
 function love.draw()
@@ -166,6 +168,7 @@ function gotoRoom(room_type, ...)
         error("room '"..room_type.."' is not callable (got "..type(Class)..", does room return itself?)")
     end
     if current_room and current_room.destroy then current_room:destroy() end
+    if slow_amnt ~= 1 then slow_amnt = 1 end
     current_room = _G[room_type](...)
 end
 

obj/Area.lua

@@ -11,6 +11,7 @@ function Area:new(room)
     self.room = room
     self.game_objects = {}
     self.world = nil
+    self.timer = Timer()
 end
 
 ---Updates area
@@ -25,6 +26,7 @@ function Area:update(dt)
             table.remove(self.game_objects, i)
         end
     end
+    self.timer:update(dt)
 end
 
 ---Draws area
@@ -34,6 +36,10 @@ end
 
 ---Destroys area
 function Area:destroy()
+    if self.timer then
+        self.timer:clear()  -- cancel all tweens/after/every
+        self.timer = nil
+    end
     for i = #self.game_objects, 1, -1 do
         local game_object = self.game_objects[i]
         game_object:kill()
@@ -62,4 +68,12 @@ function Area:addCollisionManager(cell_size)
     self.world = HC(cell_size or 100)
 end
 
+---Slows down gameplay
+---@param amount number percentage to which game will slow down
+---@param duration number duration in seconds of slow down
+function Area:slow(amount, duration)
+    slow_amnt = amount
+    self.timer:tween(duration, _G, {slow_amnt = 1}, 'in-out-cubic')
+end
+
 return Area

obj/Room.lua

@@ -52,6 +52,10 @@ end
 
 ---Destroys room
 function Room:destroy()
+    if self.timer then
+        self.timer:clear()  -- cancel all tweens/after/every
+        self.timer = nil
+    end
     self.area:destroy()
     self.area = nil
 end

obj/game/Player.lua

@@ -83,10 +83,12 @@ function Player:shoot()
 end
 
 function Player:kill()
+    self:destroy()
     for i=1, random(8,12) do
         self.area:addGameObject('ExplodeParticle', self.x, self.y)
     end
-    self:destroy()
+    self.area:slow(.15, 1)
+    camera:shake(6, 60, .4)
 end
 
 return Player