How to make hold/click?? hold = repeat mine, click = 1x mine

Hello, I hope this will help:

local tool = script.Parent
local swing = true
equipped = false -- set value which will track if tool is equipped
 
tool.Equipped:Connect(function() -- set equipped value to true
	equipped = true
end)

tool.Unequipped:Connect(function() -- set it to false
	equipped = false
end)

tool.Handle.Touched:Connect(function(otherPart)
    if otherPart.Name == 'Rock' then
        wait()
        tool.Mining.Value = false
    end
end)

local function mine()
    if script.Parent.Damage.Value == 13 then -- this is only double dmg
        if game:GetService("MarketplaceService"):UserOwnsGamePassAsync(game.Players[script.Parent.Parent.Name].UserId, 17837947) then
            script.Parent.Damage.Value = 26
        end
    end
    if swing then
        swing = false
        tool.Mining.Value = true
        local str = Instance.new("StringValue")
        str.Name = "toolanim"
        str.Value = "Slash"
        str.Parent = tool
        wait(0.35)
        swing = true
        tool.Mining.Value = false
    else 
        return
    end
end

local player = game:GetService("Players").LocalPlayer -- define localplayer or player if server script

mouse = player:GetMouse() -- get player's mouse

mouse.Button1Down:Connect(function() -- if holding left mouse button function
    if equipped == true then -- if tool is equipped call mine function
        mine()
    end
end)

tool.Activated:Connect(mine)