how do i make this script work on Click instead of moving the mouse?

Your function, "playerMouse:connect(click)" is wrong. Here, I will give you a short mouse tutorial.

First of all, make sure this is a LocalScript. Also, you should define the player. It's not needed, but you never know;

local player=game.Players.LocalPlayer --Get the player (local script only!)

Getting the Mouse is fairly similar;

local player=game.Players.LocalPlayer --Get the player
local mouse=player:GetMouse() --Get the mouse

Now, the mouse has many properties and events. The event you need is Button1Down;

local player=game.Players.LocalPlayer --Get the player
local mouse=player:GetMouse() --Get the mouse

mouse.Button1Down:connect(function() --When the player clicks..
    print("Left Mouse Button Clicked!")
end)

The mouse also has a Hit property that gets the Mouse's position;

local player=game.Players.LocalPlayer --Get the player
local mouse=player:GetMouse() --Get the mouse

mouse.Button1Down:connect(function() --When the player clicks..
    print("Left Mouse Button Clicked!")
    print(mouse.Hit) --Prints the CFrame of the Mouse
end)

Putting it all together

local player=game.Players.LocalPlayer --Get the player
local mouse=player:GetMouse() --Get the mouse
local warrior=workspace.Worrior--Get the warrior

mouse.Button1Down:connect(function() --When the player clicks..
    warrior.Humanoid:MoveTo((mouse.Hit).p)
end)

Functions must be connected to an event.

Use the Button1Down event of the mouse and connect it to a function.

tool = script.Parent
warrior = game.Workspace.Warrior

playerMouse = game.Players.LocalPlayer:GetMouse()

tool.Equipped:connect(function(m)
    m.Icon = "http://www.roblox.com/asset/?id=79658449"

    m.Button1Down:connect(function()
        print("X Mouse Position: "..playerMouse.X.."",", ","Y Mouse Position: "..playerMouse.Y.."")
        warrior.Humanoid:MoveTo(Vector3.new(playerMouse.X,playerMouse.Y))

    end)
end)

Basically just swapped the move event with the Button1Down event.

Good Luck!

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