new effect aversion to death

lib/character/behaviors/effects.lua

@@ -16,7 +16,7 @@ behavior.id      = "effects"
 function behavior.new()
     local efb = require "lib.effectbook"
     return setmetatable({
-        effectbook = efb.of { efb.bleeding },
+        effectbook = efb.of { efb.bleeding, efb.aversionToDeath },
         effectsPriority = {},
         effectsProperties = {},
     }, behavior)
@@ -26,12 +26,10 @@ end
 --- @param effect Effect
 --- @param stacks integer
 function behavior:addEffect(effect, stacks, intensity)
-    if effect.beforeBirth then
     local task1 = effect:beforeBirth(self.owner, intensity)
     if task1 then
         task1(function() end)
     end
-    end
     -- проверяем эффект на возможности суммирования (aka противоречия)
     for i, ef in ipairs(self.effectsPriority) do
         if ef == effect then
@@ -39,9 +37,9 @@ function behavior:addEffect(effect, stacks, intensity)
                 stacks = stacks + self.effectsProperties[ef].stacks,
                 intensity = intensity
             }
-            local task1 = effect:afterBirth(self.owner, intensity)
-            if task1 then
-                task1(function() end)
+            local task2 = effect:afterBirth(self.owner, intensity)
+            if task2 then
+                task2(function() end)
             end
             return
         end
@@ -58,9 +56,9 @@ function behavior:addEffect(effect, stacks, intensity)
         intensity = intensity
     }
     print("[Effects]: мы применили эффект!!")
-    local task1 = effect:afterBirth(self.owner, intensity)
-    if task1 then
-        task1(function() end)
+    local task3 = effect:afterBirth(self.owner, intensity)
+    if task3 then
+        task3(function() end)
     end
 end
 
@@ -143,4 +141,27 @@ function behavior:afterCast()
     end
 end
 
+--- должен вызываться перед получением урона
+function behavior:beforeDamage(damage)
+    local totalDamage = damage
+    for i, ef in ipairs(self.effectsPriority) do
+        local task1
+        task1, totalDamage = ef:beforeDamage(self.owner, self.effectsProperties[ef].intensity, totalDamage or damage)
+        if task1 then
+            task1(function() end)
+        end
+    end
+    return totalDamage or damage
+end
+
+--- должен вызываться после получения урона
+function behavior:afterDamage()
+    for i, ef in pairs(self.effectsPriority) do
+        local task1 = ef:afterDamage(self.owner, self.effectsProperties[ef].intensity)
+        if task1 then
+            task1(function() end)
+        end
+    end
+end
+
 return behavior

lib/character/behaviors/stats.lua

@@ -21,6 +21,9 @@ end
 
 --- @param damage integer
 function behavior:dealDamage(damage)
+    local effects = self.owner:has(Tree.behaviors.effects)
+    print("[Stats]: применяем эффект")
+    if effects then damage = effects:beforeDamage(damage) end
     self.hp = self.hp - damage
     self:checkStats()
 end

lib/effectbook.lua

@@ -45,8 +45,24 @@ function bleeding:beforeCast(owner, intensity)
     Tree.audio:play(Tree.assets.files.audio.sounds.meow)
 end
 
+local aversionToDeath = effect.new {
+    tag = "dev_aversion_to_death"
+}
+
+function aversionToDeath:beforeDamage(owner, intensity, damage)
+    local stats = owner:has(Tree.behaviors.stats)
+    local effects = owner:has(Tree.behaviors.effects)
+    if not stats or not effects then return end
+    if stats.hp <= damage then
+        effects:deleteStacks(self, 1)
+        -- тут должен быть какой-нибудь классный спецэффект, но я не умею в шейдеры
+        return task.wait({}), stats.hp - 1
+    end
+end
+
 local effectbook = {
-    bleeding = bleeding
+    bleeding = bleeding,
+    aversionToDeath = aversionToDeath
 }
 
 --- не уверен зачем нам это, но вай нот ай саппоуз

lib/spell/effect.lua

@@ -6,9 +6,9 @@ local effect = {}
 effect.__index = effect
 
 --- Предполагается, что в каждую функцию будет передаваться `Character` и параметр `intensity`, который отвечает за силу спелла
---- @alias EffectFunc fun(owner: Character, intensity: integer): Task<nil>|nil
---- @alias EffectDamageFunc fun(owner: Character, intensity: integer, damage: integer): Task<nil>|nil
---- @alias EffectRegenFunc fun(owner: Character, intensity: integer, amountHp: integer): Task<nil>|nil
+--- @alias EffectFunc fun(owner: Character, intensity: integer): Task<nil>?
+--- @alias EffectDamageFunc fun(owner: Character, intensity: integer, damage: integer): Task<nil>?, integer?
+--- @alias EffectRegenFunc fun(owner: Character, intensity: integer, amountHp: integer): Task<nil>?, integer?
 --- @alias EffectData { tag: string, [string]: EffectFunc|EffectDamageFunc|EffectRegenFunc }
 
 --- @param owner Character
@@ -54,7 +54,7 @@ function effect:afterCast(owner, intensity) end
 --- @param owner Character
 --- @param intensity integer
 --- @param damage integer
---- @return Task<nil>|nil
+--- @return Task<nil>|nil, integer?
 function effect:beforeAttack(owner, intensity, damage) end
 
 --- @param owner Character
@@ -65,7 +65,7 @@ function effect:afterAttack(owner, intensity) end
 --- @param owner Character
 --- @param intensity integer
 --- @param damage integer
---- @return Task<nil>|nil
+--- @return Task<nil>|nil, integer?
 function effect:beforeDamage(owner, intensity, damage) end
 
 --- @param owner Character
@@ -81,7 +81,7 @@ function effect:beforeRegeneration(owner, intensity, amountHp) end
 
 --- @param owner Character
 --- @param intensity integer
---- @return Task<nil>|nil
+--- @return Task<nil>|nil, integer|nil
 function effect:afterRegeneration(owner, intensity) end
 
 --- @param other Effect
@@ -150,7 +150,8 @@ local function new(data)
 
     function newEffect:beforeAttack(owner, intensity, damage)
         if not data.beforeAttack then return end
-        return data.beforeAttack(owner, intensity, damage)
+        local task, newDamage = data.beforeDamage(owner, intensity, damage)
+        return task, newDamage
     end
 
     function newEffect:afterAttack(owner, intensity)
@@ -160,7 +161,8 @@ local function new(data)
 
     function newEffect:beforeDamage(owner, intensity, damage)
         if not data.beforeDamage then return end
-        return data.beforeDamage(owner, intensity, damage)
+        local task, newDamage = data.beforeDamage(owner, intensity, damage)
+        return task, newDamage
     end
 
     function newEffect:afterDamage(owner, intensity)
@@ -170,7 +172,8 @@ local function new(data)
 
     function newEffect:beforeRegeneration(owner, intensity, amountHp)
         if not data.beforeRegeneration then return end
-        return data.beforeRegeneration(owner, intensity, amountHp)
+        local task, newAmountHp = data.beforeRegeneration(owner, intensity, amountHp)
+        return task, newAmountHp
     end
 
     function newEffect:afterRegeneration(owner, intensity)

lib/spellbook.lua

@@ -52,7 +52,8 @@ local regenerateMana = spell.new {
         end)
 
         local sprite = caster:has(Tree.behaviors.sprite)
-        if not sprite then return end
+        local effects = caster:has(Tree.behaviors.effects)
+        if not sprite or not effects then return end -- и тут возможно на эффекты проверять не стоит
         print(caster.id, "has regenerated mana and gained initiative")
 
         local light = require "lib/character/character".spawn("Light Effect")
@@ -67,7 +68,8 @@ local regenerateMana = spell.new {
                 light:die()
                 return task.fromValue()
             end),
-            sprite:animate("hurt")
+            sprite:animate("hurt"),
+            effects:addEffect(effects.effectbook[2], 1, 1),
         }
     end
 }