From 16b4cd92d83f33db58990b3611bb0a4fce03e462 Mon Sep 17 00:00:00 2001
From: yuki <yvki@riseup.net>
Date: Sun, 9 Nov 2025 06:53:47 -0300
Subject: [PATCH] fixed up exercise 23 (tween cancel)

---
 main.lua          |  6 +++---
 obj/Healthbar.lua | 18 +++++++++++-------
 2 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/main.lua b/main.lua
index 25f2189..5699824 100644
--- a/main.lua
+++ b/main.lua
@@ -1,7 +1,7 @@
 -- debug --
-if os.getenv("LOCAL_LUA_DEBUGGER_VSCODE") == "1" then
-    require("lldebugger").start()
-end
+-- if os.getenv("LOCAL_LUA_DEBUGGER_VSCODE") == "1" then
+--     require("lldebugger").start()
+-- end
 
 -- libraries --
 Object = require 'lib/classic/classic'
diff --git a/obj/Healthbar.lua b/obj/Healthbar.lua
index 2e578ac..70b39a4 100644
--- a/obj/Healthbar.lua
+++ b/obj/Healthbar.lua
@@ -10,14 +10,18 @@ function Healthbar:new(x, y, hp)
 end
 
 function Healthbar:decrease(amount)
-    if self.hp - amount <= 0 then
-        self.hp = 0
-    else
-        self.hp = self.hp - amount
+    if self.hp ~= 0 then
+        if fg then timer:cancel(fg) end
+        if bg then timer:cancel(bg) end
+        if self.hp - amount <= 0 then
+            self.hp = 0
+        else
+            self.hp = self.hp - amount
+        end
+        local target_width = self.max_width * (self.hp / 100)
+        fg = timer:tween(0.3, self, {qwidth = target_width}, 'in-out-cubic')
+        bg = timer:tween(0.6, self, {lwidth = target_width}, 'in-out-cubic')
     end
-    local target_width = self.max_width * (self.hp / 100)
-    timer:tween(0.3, self, {qwidth = target_width}, 'in-out-cubic')
-    timer:tween(0.6, self, {lwidth = target_width}, 'in-out-cubic')
 end
 
 function Healthbar:update(dt)