rewrite sprite:animate, residentsleeper:sleep, attack:cast to use

callback trees

lib/animation_node.lua

@@ -1,6 +1,5 @@
 local easing = require "lib.utils.easing"
 
---- @alias voidCallback fun(): nil
 --- @alias animationRunner fun(node: AnimationNode)
 
 --- Узел дерева анимаций.

lib/annotations.lua

@@ -9,3 +9,5 @@ Tree.behaviors.positioned      = require "character.behaviors.positioned"
 Tree.behaviors.tiled           = require "character.behaviors.tiled"
 Tree.behaviors.cursor          = require "character.behaviors.cursor"
 Tree.behaviors.ai              = require "lib.character.behaviors.ai"
+
+--- @alias voidCallback fun(): nil

lib/character/behaviors/residentsleeper.lua

@@ -1,21 +1,37 @@
 --- Умеет асинхронно ждать какое-то время (для анимаций)
 --- @class ResidentSleeperBehavior : Behavior
---- @field animationNode? AnimationNode
+--- @field private t0 number?
+--- @field private sleepTime number?
+--- @field private callback voidCallback?
+--- @field private state 'running' | 'finished'
 local behavior = {}
 behavior.__index = behavior
 behavior.id = "residentsleeper"
 
 function behavior.new() return setmetatable({}, behavior) end
 
-function behavior:update(dt)
+function behavior:update(_)
-    if not self.animationNode then return end
+    if self.state ~= 'running' then return end
-    self.animationNode:update(dt)
+
+    local t = love.timer.getTime()
+    if t >= self.t0 + self.sleepTime then
+        self.state = 'finished'
+        self.callback()
+    end
 end
 
---- @param node AnimationNode
+--- @return Task<nil>
-function behavior:sleep(node)
+function behavior:sleep(ms)
-    if self.animationNode then self.animationNode:finish() end
+    self.sleepTime = ms / 1000
-    self.animationNode = node
+    return function(callback)
+        if self.state == 'running' then
+            self.callback()
+        end
+
+        self.t0 = love.timer.getTime()
+        self.callback = callback
+        self.state = 'running'
+    end
 end
 
 return behavior

lib/character/behaviors/sprite.lua

@@ -69,17 +69,20 @@ function sprite:draw()
     )
 end
 
---- @param node AnimationNode
+--- @return Task<nil>
 function sprite:animate(state, node)
+    return function(callback)
         if not self.animationGrid[state] then
-        return print("[SpriteBehavior]: no animation for '" .. state .. "'")
+            print("[SpriteBehavior]: no animation for '" .. state .. "'")
+            callback()
         end
         self.animationTable[state] = anim8.newAnimation(self.animationGrid[state], self.ANIMATION_SPEED,
             function()
                 self:loop("idle")
-            node:finish()
+                callback()
             end)
         self.state = state
+    end
 end
 
 function sprite:loop(state)

lib/spellbook.lua

@@ -7,8 +7,7 @@
 --- --TODO: каждый каст должен возвращать объект, который позволит отследить момент завершения анимации спелла
 --- Да, это Future/Promise/await/async
 
-local AnimationNode = require "lib.animation_node"
+local Counter = require 'lib.utils.counter'
-local easing        = require "lib.utils.easing"
 
 --- @class Spell Здесь будет много бойлерплейта, поэтому тоже понадобится спеллмейкерский фреймворк, который просто вернет готовый Spell
 --- @field tag string
@@ -59,9 +58,6 @@ function walk:cast(caster, target)
     local testChar = Tree.level.characters[1];
 
 
-
-
-
     return function(callback) -- <- вызовется после всех анимаций
         local counter = require 'lib.utils.counter' (callback)
         counter.push()
@@ -147,7 +143,7 @@ function attack:cast(caster, target)
             print("dist:", dist)
             return dist > 2
         end) then
-        return false
+        return
     end
 
     caster:try(Tree.behaviors.stats, function(stats)
@@ -156,7 +152,7 @@ function attack:cast(caster, target)
 
     --- @type Character
     local targetCharacterId = Tree.level.characterGrid:get(target)
-    if not targetCharacterId or targetCharacterId == caster.id then return false end
+    if not targetCharacterId or targetCharacterId == caster.id then return end
     local targetCharacter = Tree.level.characters[targetCharacterId]
     targetCharacter:try(Tree.behaviors.stats, function(stats)
         stats.hp = stats.hp - 4
@@ -164,43 +160,24 @@ function attack:cast(caster, target)
 
     local sprite = caster:has(Tree.behaviors.sprite)
     local targetSprite = targetCharacter:has(Tree.behaviors.sprite)
-    if not sprite or not targetSprite then return true end
+    if not sprite or not targetSprite then return end
 
     caster:try(Tree.behaviors.positioned, function(b) b:lookAt(target) end)
 
-    AnimationNode {
+    return function(callback)
-        onEnd = function() caster:has(Tree.behaviors.spellcaster):endCast() end,
+        local c = Counter(callback)
-        children = {
-            AnimationNode {
-                function(node)
-                    sprite:animate("attack", node)
-                end
-            },
-            AnimationNode {
-                function(node)
-                    targetCharacter:has(Tree.behaviors.residentsleeper):sleep(node)
-                end,
-                duration = 200,
-                children = {
-                    AnimationNode {
-                        function(node)
-                            local audioPath = Tree.assets.files.audio
-                            targetSprite:animate("hurt", node)
-                            --- @type SourceFilter
-                            local settings = {
-                                type = "highpass",
-                                volume = 1,
-                                lowgain = 0.1
-                            }
-                            Tree.audio:play(audioPath.sounds.hurt)
-                        end
-                    }
-                }
-            }
-        }
-    }:run()
 
-    return true
+        c.push()
+        sprite:animate("attack")(c.pop)
+
+        c.push()
+        targetCharacter:has(Tree.behaviors.residentsleeper):sleep(200)(
+            function()
+                targetSprite:animate("hurt")(c.pop)
+                Tree.audio:play(Tree.assets.files.audio.sounds.hurt)
+            end
+        )
+    end
 end
 
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