spells framework API & walk implementation

lib/character/character.lua

@@ -1,4 +1,3 @@
-local anim8 = require "lib.utils.anim8"
 require 'lib.utils.vec3'
 
 
@@ -12,7 +11,8 @@ local characterId = 1
 --- @field info Info
 --- @field graphics Graphics
 --- @field logic Logic
---- @field cast boolean @todo тестовое поле, которое отвечает за то, кастуется ли перемещение в данный момент
+--- @field spellbook Spell[] собственный набор спеллов персонажа
+--- @field cast Spell | nil ссылка на активный спелл из спеллбука
 local character = {}
 character.__index = character
 
@@ -45,11 +45,13 @@ end
 
 function character:update(dt)
     self.logic:update(dt)
+    if self.cast then self.cast:update(self, dt) end
     self.graphics:update(dt)
 end
 
 function character:draw()
     self.graphics:draw()
+    if self.cast then self.cast:draw() end
 end
 
 return { spawn = spawn }

lib/character/logic.lua

@@ -61,8 +61,6 @@ function logic:update(dt)
             self.mapLogic.displayedPosition = utils.lerp(self.mapLogic.position, self.mapLogic.runTarget, fraction) -- линейный интерполятор
         end
     end
-
-    Tree.level.characterGrid:add(self.id)
 end
 
 return { new = new }

lib/level/grid/character_grid.lua

@@ -1,3 +1,4 @@
+local utils = require "lib.utils.utils"
 --- @class CharacterGrid : Grid
 --- @field __grid {string: Id|nil}
 local grid = setmetatable({}, require "lib.level.grid.base")
@@ -20,6 +21,16 @@ function grid:add(id)
     end
 end
 
+--- fills the grid with the actual data
+---
+--- should be called as early as possible during every tick
+function grid:reload()
+    self:reset()
+    utils.each(Tree.level.characters, function(c)
+        self:add(c.id)
+    end)
+end
+
 --- Generates an empty grid
 --- @return CharacterGrid
 local function new()

lib/level/level.lua

@@ -27,27 +27,11 @@ local function new(type, template)
     }, level)
 end
 
-local mposCache = nil
-
 function level:update(dt)
-    self.characterGrid:reset()
+    self.characterGrid:reload()
     utils.each(self.characters, function(el)
         el:update(dt)
     end)
-    if self.characters[self.selector.id] then
-        local charPos = self.characters[self.selector.id].logic.mapLogic.position:floor()
-        --- @type Vec3
-        local mpos = self.camera:toWorldPosition(Vec3 { love.mouse.getX(), love.mouse.getY() }):floor()
-
-        -- ДУШИ здесь больше нет, приводите рыжих обратно
-        if not path or tostring(mpos) ~= mposCache then
-            path = require "lib.pathfinder" (charPos, mpos) -- ?????
-        end
-        mposCache = tostring(mpos)
-        -- path = (require "lib.pathfinder")(charPos, mpos)
-    else
-        mposCache = nil
-    end
 
     self.camera:update(dt)
     self.selector:update(dt)
@@ -55,16 +39,6 @@ end
 
 function level:draw()
     self.tileGrid:draw()
-
-    --- Это отрисовка пути персонажа к мышке
-    if self.selector.id and self.characters[self.selector.id].cast and path then
-        love.graphics.setColor(0.6, 0.75, 0.5)
-        for p in path:values() do
-            love.graphics.circle("fill", p.x + 0.45, p.y + 0.45, 0.1)
-        end
-        love.graphics.setColor(1, 1, 1)
-    end
-
     utils.each(self.characters, function(el)
         el:draw()
     end)

lib/level/selector.lua

@@ -12,10 +12,6 @@ function selector:select(characterId)
     self.id = characterId
 end
 
--- function selector:deselect()
---     self.id = nil
--- end
-
 --- TODO: сделать обработчик селектора
 function selector:update(dt)
     if not Tree.controls:isJustPressed("select") then return end
@@ -27,16 +23,11 @@ function selector:update(dt)
     end
     local characterId = Tree.level.characterGrid:get(Vec3 { mousePosition.x, mousePosition.y })
 
-    if not characterId and self.id then -- временная обработка события "побежать к точке"
+    if not characterId and self.id then -- Когда кликаем по тайлу за персонажа в режиме каста, кастуем спелл
         local char = Tree.level.characters[self.id]
         if char.cast then
-            char.cast = false
-            local charPos = char.logic.mapLogic.position
-            local path = (require "lib.pathfinder")(charPos, mousePosition)
-            path:pop_front()
-            print("Following path: ")
-            for p in path:values() do print(p) end
-            char:followPath(path)
+            char.cast:cast(char, mousePosition)
+            char.cast = nil
         end
     end
     self:select(characterId)

lib/spellbook.lua

@@ -0,0 +1,54 @@
+--- @class Spell
+--- @field update fun(self: Spell, caster: Character, dt: number): nil Изменяет состояние спелла
+--- @field draw fun(self: Spell): nil Рисует превью каста, ничего не должна изменять в идеальном мире
+--- @field cast fun(self: Spell, caster: Character, target: Vec3): nil Вызывается в момент каста, изменяет мир
+local spell = {}
+spell.__index = spell
+
+local walk = setmetatable({
+    --- @type Deque
+    path = nil
+}, spell)
+
+function walk:cast(caster, target)
+    caster.cast = nil
+    local path = self.path
+    path:pop_front()
+    print("Following path: ")
+    for p in path:values() do print(p) end
+    caster:followPath(path)
+end
+
+function walk:update(caster, dt)
+    local charPos = caster.logic.mapLogic.position:floor()
+    --- @type Vec3
+    local mpos = Tree.level.camera:toWorldPosition(Vec3 { love.mouse.getX(), love.mouse.getY() }):floor()
+    self.path = require "lib.pathfinder" (charPos, mpos)
+end
+
+function walk:draw()
+    if not self.path then return end
+    --- Это отрисовка пути персонажа к мышке
+    love.graphics.setColor(0.6, 0.75, 0.5)
+    for p in self.path:values() do
+        love.graphics.circle("fill", p.x + 0.45, p.y + 0.45, 0.1)
+    end
+    love.graphics.setColor(1, 1, 1)
+end
+
+----------------------------------------
+local spellbook = {
+    walk = walk
+}
+
+--- Создает новый спеллбук с уникальными спеллами (а не ссылками на шаблоны)
+--- @param list Spell[]
+function spellbook.of(list)
+    local spb = {}
+    for i, sp in ipairs(list) do
+        spb[i] = setmetatable({}, { __index = sp })
+    end
+    return spb
+end
+
+return spellbook

lib/ui/layout.lua

@@ -4,16 +4,16 @@ local ui = require "lib.ui.core"
 
 --- @class SkillButton : Rectangle
 --- @field owner Character
+--- @field spellId number
 local SkillButton = ui.Rectangle {
     size = Vec3 { 100, 100 },
     color = { 1, 0, 0 },
-    owner = nil
 }
 function SkillButton:update(dt)
     ui.Rectangle.update(self, dt)
     self.color = self.owner.cast and { 0, 1, 0 } or { 1, 0, 0 }
     self:onTap(function()
-        self.owner.cast = not self.owner.cast
+        self.owner.cast = self.owner.cast and nil or self.owner.spellbook[self.spellId]
     end)
 end
 
@@ -34,7 +34,7 @@ function layout:build()
                     local r =
                         ui.Row {
                             children = {
-                                setmetatable({ owner = Tree.level.characters[id] }, { __index = SkillButton })
+                                setmetatable({ owner = Tree.level.characters[id], spellId = 1 }, { __index = SkillButton })
                             }
                         }
                     skillRows[id] = r

main.lua

@@ -3,6 +3,7 @@
 local character = require "lib/character/character"
 require "lib/tree"
 local layout = require "lib.ui.layout"
+local spellbook = require "lib.spellbook"
 
 function love.conf(t)
     t.console = true
@@ -15,6 +16,7 @@ function love.load()
                 local c = character.spawn("Hero", "warrior", Tree.assets.files.sprites.character)
                 c.logic.mapLogic.position = Vec3 { x, y }
                 c.logic.mapLogic.displayedPosition = Vec3 { x, y }
+                c.spellbook = spellbook.of { spellbook.walk }
             end
         end
     end