heroes-of-nerevelon/lib/ui/layout.lua

local Vec3 = require "lib.utils.vec3"
local ui = require "lib.ui.core"


--- @class SkillButton : Rectangle
--- @field owner Character
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
    end)
end

local skillRows = {}

local layout = {}
function layout:build()
    return ui.Root {
        child = ui.Align {
            alignment = "bottom_center",
            child =
            --- для каждого персонажа строим свой ряд скиллов, сохраняем его на потом и возвращаем
            --- если персонаж не выделен, не возвращаем ничего
                (function()
                    local id = Tree.level.selector.id
                    if not id then return nil end
                    if skillRows[id] then return skillRows[id] end
                    local r =
                        ui.Row {
                            children = {
                                setmetatable({ owner = Tree.level.characters[id] }, { __index = SkillButton })
                            }
                        }
                    skillRows[id] = r
                    return r
                end)()
        }
    }
end

return layout