织布：一梭一线织成匹

fx-weave

local Weave = {}
local KEY = { ROWS = 10 }

local rows, shuttle = {}, nil
local WC = { "#f85149", "#3fb950", "#58a6ff", "#e3b341" }

function WV.Push()
    if shuttle or #rows >= KEY.ROWS then return end
    local rowIdx = #rows
    shuttle = {
        x = SL:GetValue("loomLeft") - 20,
        dir = 1,
        row = SL:GetValue("loomTop") + rowIdx * (SL:GetValue("rowH")) + SL:GetValue("rowH") / 2,
        color = WC[(rowIdx % 4) + 1]
    }
    SL:PlaySfx("shuttle_throw")
end

function WV.Tick(dt)
    if not shuttle then return end
    shuttle.x = shuttle.x + shuttle.dir * (SL:GetValue("shuttleSpd") or 6) * 60 * dt
    -- 纬线尾: 梭后拖一条彩线
    SL:DrawLine(shuttle.x - 20, shuttle.row, shuttle.x, shuttle.row, shuttle.color)
    -- 出界: 一行织完
    if shuttle.x > SL:GetValue("loomRight") + 16 then
        rows[#rows + 1] = shuttle.row
        SL:PlayFxAt("row_done", SL:GetValue("loomRight"), shuttle.row)
        SL:PlaySfx("row_press")
        shuttle = nil
        SL:SetValue("rowsWoven", #rows)
    end
end

-- 织满十行: 成匹
function WV.OnFull()
    SL:PlayFxAt("cloth_roll")
    SL:ShowSystemTips("一匹布织成!")
    rows = {}
end

return WV