【前端底层】gameActorPlayer：玩家角色的属性字段与移动同步

---玩家角色的移动同步（整理自 gameActorPlayer.lua）
function gameActorPlayer.onMove(actor, targetX, targetY)
    actor.targetX = targetX
    actor.targetY = targetY
    actor.moveState = "walking"
    local speed = actor:GetMoveSpeed()
    actor.moveStart = os.clock()
end

function gameActorPlayer.tick(actor, dt)
    if actor.moveState == "walking" then
        local dx = actor.targetX - actor.x
        local dy = actor.targetY - actor.y
        local dist = math.sqrt(dx * dx + dy * dy)
        if dist < 2 then
            actor.moveState = "idle"
            actor.x = actor.targetX
            actor.y = actor.targetY
        else
            actor.x = actor.x + dx / dist * speed * dt
            actor.y = actor.y + dy / dist * speed * dt
        end
    end
end

function gameActorPlayer.onEquipChange(actor, slot)
    local item = actor:GetEquip(slot)
    if item then
        actor:SetAppearance(item.apprId)
    end
    actor:RecalcPanel()
end