How do i make a fighting script for R15 which plays a animation when you press a key?

Hello i been looking every where to find out where i can look for help on how to script a hand to hand combat script that plays a animation when rather clicked or key pressed if you can help me that would be great!

First of all, use UserInputServicelink to listen for key events, then using Animationslink load it into the character

example -- should work as a local script in StarterPack. Remember that the character is destroyed when you re-spawn too

local player = game.Players.LocalPlayer
local character = player.Character
if not character or not character.Parent then
    character = player.CharacterAdded:wait()
end


local animation = Instance.new("Animation")
animation.AnimationId = "http://www.roblox.com/Asset?ID=144884906"

function onKeyPress(inputObject, gameProcessedEvent)
	if inputObject.KeyCode == Enum.KeyCode.R then
		local animTrack = character.Humanoid:LoadAnimation(animation)
		animTrack:Play()
	end
end
 
game:GetService("UserInputService").InputBegan:connect(onKeyPress)