wait();
local ContentProvider = game:GetService("ContentProvider");
local Preload = ContentProvider.Preload;
local render = game:GetService("RunService").RenderStepped;
local debris = game:GetService("Debris");
local PrivateChecking = {};
local Collisions = {
    ["Regular"] = {
    "http://roblox.com/asset?id=155985920",
    "http://roblox.com/asset?id=155985949",
    "http://roblox.com/asset?id=155985964",
    "http://roblox.com/asset?id=155986003",
    "http://roblox.com/asset?id=155986027",
    "http://roblox.com/asset?id=155986040",
    "http://roblox.com/asset?id=155986061"
    },
    ["Bottle"] = {
    "http://roblox.com/asset?id=155986762",
    "http://roblox.com/asset?id=155986778",
    "http://roblox.com/asset?id=155986960",
    "http://roblox.com/asset?id=155986987",
    "http://roblox.com/asset?id=155987004",
    "http://roblox.com/asset?id=155987128",
    "http://roblox.com/asset?id=155987137"
    }
}
for _,a in pairs(Collisions) do
    for _,v in pairs(a) do
        Preload(ContentProvider,v);
    end
end
local function printf(str,...)
    local args = {...};
    print(string.format(str,unpack(args)));
end
local local_mass = 10;

Checking = Workspace.Checking;
Checking.ChildAdded:connect(function(v)
        local mass = v:GetMass();
        printf("%s with mass of %f",v:GetFullName(),mass);
        PrivateChecking[i] = {0,v,mass};
        local self = PrivateChecking[i];
        local part = v;
        part.Touched:connect(function(collider) if collider.Transparency > 0.1 then return end
            local magn = part.Velocity.Magnitude;
            local lastmagn = self[1];
            if(magn < lastmagn and lastmagn-magn >= local_mass) then
            coroutine.wrap(function()
                print("SUDDEN STOP");
                local smokepart = Instance.new("Part",Workspace);
                local collision = Instance.new("Sound",smokepart);
                collision.SoundId = Collisions[part.Name][math.random(1,7)];
                collision:Play();
                smokepart.Name = 'Effect_Smoke';
                smokepart.CanCollide = false;
                smokepart.Anchored = true;
                smokepart.Transparency = 1;
                smokepart.CFrame = part.CFrame;
                local smoke = Instance.new("Smoke",smokepart);
                smoke.Size = self[3]/6;
                smoke.Opacity = .1;
                smoke.Color = Color3.new(127/255, 91/255, 80/255);
                smoke.Enabled = true;
                wait(.5)
                smoke.Enabled = false;
                debris:AddItem(smokepart,10);
            end)();
            end
        end)
    end
end)

local checking = true;


while checking do
    wait();
    for _,v in pairs(PrivateChecking) do
        local part = v[2];
        local magn = part.Velocity.Magnitude;
        v[1] = magn;
    end
end