Fix AnimationNode:finish() called twice

lib/animation_node.lua

@@ -33,6 +33,7 @@ local easing = require "lib.utils.easing"
 --- @field duration number продолжительность в миллисекундах
 --- @field easing ease функция смягчения
 --- @field t number прогресс анимации
+--- @field finished boolean
 local animation = {}
 animation.__index = animation
 
@@ -40,6 +41,7 @@ animation.__index = animation
 function animation:bubbleUp()
     self.count = self.count - 1
     if self.count > 0 then return end
+    self.finished = true
     if self.onEnd then self.onEnd() end
     if self.parent then self.parent:bubbleUp() end
 end
@@ -61,6 +63,8 @@ function animation:getValue()
 end
 
 function animation:update(dt)
+    if self.finished then return end
+
     if self.t < 1 then
         self.t = self.t + dt * 1000 / self.duration -- в знаменателе продолжительность анимации в секундах
     else
@@ -78,12 +82,14 @@ local function new(data)
     end
     t.onEnd = data.onEnd
     t.count = 1 -- своя анимация
+    t.finished = false
     t.children = {}
     t:chain(data.children or {})
     t.duration = data.duration or 1000
     t.easing = data.easing or easing.linear
     t.t = 0
     t.finish = function()
+        if t.finished then return end
         t:bubbleUp()
         for _, anim in ipairs(t.children) do
             anim:run()