How would i get the player from the character?

[All I want to know is what would I put in the parameters for the :GetPlayerFromCharacter(), or what could I do to get the player]

Code(it is in a TextButton that is inside a Gui that is inside StarterGui):

function onClicked()
local p = game.Players:GetPlayerFromCharacter()
local t = script.Parent.Parent.Parent.Parent.Character.Torso
if p.TeamColor == "Bright bluish green" then
t.CFrame = game.Workspace.MiningTycoon.Tycoons.Diamond.Essentials.Spawn.CFrame
elseif p.TeamColor == "Really red" then
t.CFrame = game.Workspace.MiningTycoon.Tycoons.Ruby.Essentials.Spawn.CFrame

end	
end 

script.Parent.MouseButton1Down:connect(onClicked)

Well, you don't need to use :GetPlayerFromCharacter(), because this is in the player all ready, you could just do:

local player = script.Parent.Parent.Parent.Parent--This would work if the TextButton's parent was a screen GUi in the StarterGui

But to use the GetPlayerFromCharacter, you still need the player, eg

local player = script.Parent.Parent.Parent.Parent
function onClicked()
local p = game.Players:GetPlayerFromCharacter(player.Character)
local t = script.Parent.Parent.Parent.Parent.Character.Torso
if p.TeamColor == "Bright bluish green" then
t.CFrame = game.Workspace.MiningTycoon.Tycoons.Diamond.Essentials.Spawn.CFrame
elseif p.TeamColor == "Really red" then
t.CFrame = game.Workspace.MiningTycoon.Tycoons.Ruby.Essentials.Spawn.CFrame

end 
end 

script.Parent.MouseButton1Down:connect(onClicked)

If this helps, why don't you click that accept answer button? It gives us both rep!!

To use :GetPlayerFromCharacter(), the parameter is for the Character. Now, with a GUI you wouldn't really have a good reason to use it, at least, not with what you're doing. You should always use a localscript for GUI's which to get the player for a LocalScript, all you need to do is local Variable = game.Players.LocalPlayer and now you have the Player.

Now, I will show you a quick script that will print the Players name when a player touches it, getting the player with GetPlayerFromCharacter() as an example for later use.

script.Parent.Touched:connect(function(hit) -- assuming script is in the part
	local Char = hit.Parent -- the model containing the players part is considered the Player, AKA Figure.
	local Plr = game.Players:GetPlayerFromCharacter(Char)
	print(Plr.Name.." has touched this part")
end)