【引擎触发】野蛮冲撞：位移碰撞与撞墙判定的引擎实现

-- 技能释放触发：野蛮冲撞
function QF.Charge(plr)
    if plr:CooldownLeft("charge") > 0 then return false end
    local facing = plr:GetFacing()
    local dist = 5
    local hit = nil
    for step = 1, dist do
        local nx, ny = plr:Peek(facing, step)
        if plr:IsBlocked(nx, ny) then dist = step - 1; break end
        local t = QF_UnitAt(nx, ny)
        if t and t.camp ~= plr.camp then
            hit = t; dist = step; break
        end
    end
    plr:DashTo(facing, dist)
    if hit then
        hit:AddState("stun", { expireAt = os.time() + 2 })
        QF_ApplyDamage(plr, hit, plr:GetAttack() * 0.5, "physical")
    end
    plr:SetCooldown("charge", 15)
    return true
end

function UI.chargeFX(plr, hit)
    SL:PlayAudio(2026)
    if hit then
        local txt = GUI:Text_Create(hit.head, "stun", 0, -35, 14, "#FFA500", "眩晕")
        QF_Delay(2000, function() txt:removeFromParent() end)
    end
end