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welcome back to another roblox studio
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tutorial in today's video we're gonna
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start a series on first-person shooters
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and we're gonna be adding different
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things like how to set up a gun we'll
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set up leaderboards that keep track of
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kills and deaths and then also do a few
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more things so one of the things we're
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going to take a look at is how to create
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a gun so this gun right here can shoot
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bullets and then if the bullets hit
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another player they'll do damage so let
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me go and find where my guy went to he's
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trying to run for me okay and if you're
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playing on a server with other players
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then it'll actually keep track of how
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many times you kill a player and also
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how many times you die so let me go
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ahead and load up a local server and we
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can take a look at that part of it okay
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so now if you're in a server with some
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other players and let's say I kill this
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player up top here then in the
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leaderboards you can see that my player
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two got one kill and then player one has
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one for the deaths category alright so
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let's go and dive in and see how we can
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do some of this stuff in roblox studio
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[Music]
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all right so in this series we're going
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to start off by getting the gun to shoot
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bullets to do that we need a gun model
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and for the gun model you can either
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create your own if you want to do that
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for this example I just took this one
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from the toolbox and wrote my own
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scripts for it so let me go ahead and
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show you where I got that from so if you
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go under the View tab and open up the
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toolbox and then search gun up in the
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search bar I use this one right here the
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one that says pistol and then for the
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- I just cleared it off and deleted all
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the extra stuff so basically I deleted
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everything except for the actual model
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all right so that's the only part of it
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that I'm using so I'm not actually using
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any pre-made scripts that came with it
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so we're actually gonna be writing our
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own scripts for this so that you can
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take that script and move it to any
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model that you want to the one thing
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that's important to keep in mind is when
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you're searching through the toolbox for
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a gun they're not all created the same
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so what you're really looking for is a
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tool where all the parts are grouped
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into one part and then you want to make
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sure that part is called handled if you
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find a tool that you like and all the
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parts are kind of separate see if you
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can go under the model tab and select
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all the parts and use the Union button
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to group them all together and then
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rename that Union to handle so the
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script that we're going to be doing
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should work for most items as long as it
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looks something similar to this where
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all the parts are composed into
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something called handle all right so
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while we have the toolbox open let's go
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ahead and get a sound for our gun as
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well so if you click on the drop-down
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menu you want to select audio and then
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in the search bar you can search
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something like gun shot and then you can
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take a look through some of these to see
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what they sound like and once you find
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one that you like you're going to click
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it that'll insert it into the workspace
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and then from the workspace you just
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want to drag it inside the handle of the
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handgun alright so the next thing we're
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going to do is start working on a local
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script for this tool so go ahead and
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find your gun over in the explore menu
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and click on the plus sign and then
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we're going to be adding a local script
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for this local script we're going to
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start by making a reference for the gun
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so we'll say local gun and this is going
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to be equal to script dot P Hrant after
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that we're going to make a reference for
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the sound so we'll say local and then
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we'll say gun underscore shot and this
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is going to be equal to gun dot handle
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and then inside the handle is where we
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stored the sound so it's right here so
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since there's a space in between gun in
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the word shot we're going to use square
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brackets and then we'll put the name of
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it inside parentheses so we'll say gun
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space and then shot next we're going to
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create a function that will run whenever
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the
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clicks so we're going to start by saying
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gun da equipped so this is when the
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player equips the gun we're going to say
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: connect inside the parenthesis we're
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going to define a function inside this
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function we're going to pass the mouse
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object and then inside this function
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we're going to define another function
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we're gonna say mouse dot button one
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down and then we'll be connecting this
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inside the parenthesis will be another
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function this time we're not going to
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pass any parameters but what we're going
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to do first inside this function is just
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play the sound and we can do that by
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saying gun underscore shot and then
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colon play so this will be a good test
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to see if whenever I click the mouse if
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I can hear that gunshot alright so let's
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go and run the code and check it out ok
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so now whenever I equip the gun and
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click the mouse we hear a gunshot okay
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so next sound the to-do list is to get a
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bullet to shoot from the gun we're going
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to be doing this in a couple different
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parts but the basic idea is we're going
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to have a click event on the client side
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we're going to send some information to
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the server side such as where the click
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is happening and also the guns position
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and then from there we're going to
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create a part and use velocity to make
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it shoot all right so let's go and go
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back to the local script and we'll get
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started on that so since we need to
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connect the client side to the server
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side we're going to be using remote
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events so let's go ahead and define
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those right here
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so first we're gonna say local replicate
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it's storage and this is going
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equal to game : get service inside the
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parentheses is going to be replicated
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storage and then so next what we need to
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do is actually create that remote event
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so under replicated storage we're going
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to click on the plus sign and you're
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going to add a remote event and then go
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ahead and rename that remote event
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two-shot event after you do that we're
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going to define a variable for that
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remote event and we'll say local remote
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event and this is going to be equal to
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replicate a storage which is where it's
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located inside replicated storage we're
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going to say : wait for child inside the
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parentheses we're going to put the name
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of the remote event which is shot event
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so next inside this function in addition
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to playing that sound we also want to
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trigger that remote event so that we can
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write a script on the server side to do
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that we're going to say remote event :
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fire server inside the parenthesis we
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can pass some information to the server
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and what we're going to give to the
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server is the position of the gun which
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is going to be gun dot handle dot
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position we also want to send the
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location of the user's mouse which we
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can do by saying mouse dot hit dot P all
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right so now that we have everything
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handled on the client side let's go and
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work on the server side now so we're
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going to be inserting a script into the
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server script service so go ahead and
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click on the plus sign and then click on
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script and then you want to rename the
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script to what I have right here which
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is bullet create inside the script we're
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going to start by referencing the
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replicated storage and also the remote
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event since those are going to be the
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same as what we just wrote if we can
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head back to the local script and copy
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these two lines right here and then
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we're going to paste them inside of our
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script here next we're going to write a
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function that's going to run whenever
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the remote events gets triggered which
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will happen whenever a user clicks their
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mouse so we're gonna say remote event
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dot on server event
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and then we're going to connect this
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with a function inside the function
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we're going to pass the information we
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got from the client so from the client
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side we get the player automatically
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which is the player that triggered the
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event we also sent two additional pieces
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of information so if we look at the
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local script we sent the position of the
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gun so I'm going to create a variable
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called gun and then POS for position we
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also sent the mouse position so to store
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that I'm going to say mo s and then POS
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for position okay just a test to make
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sure that this is working let's go ahead
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and print off those two different
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variables so we're going to print the
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guns position and they were also going
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to print the mouse position okay so
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before we run the game let's go up to
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the View tab and select output so that
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we can see the result so now I'm going
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to run the game so this arrow right here
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is part of the NPC so don't worry about
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that part of it so now whenever I shoot
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the gun you'll see a couple sets of
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numbers right down here the first one is
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the guns position and the second one is
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the mouse position so by doing this we
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know that our remote event is working
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and we have those two pieces of
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information so the next thing we can do
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is start working on creating the bullet
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all right so let's start working on
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creating the bullet whenever the user
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clicks the mouse so we want this to
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happen on the server side so we're going
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to be writing this script under the
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bullet create script that we put under a
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service trip service so for now we can
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go and delete these print messages since
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we know what's working so what we're
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going to be doing is creating a new part
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and then changing some of its properties
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to make it look like a bullet for now
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though let's just keep it simple and
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just create a normal part we can do that
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by saying local bullet and this is going
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to be equal to instance dot new inside
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the parentheses we're going to be
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creating a part then we're going to say
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bullet dot name and this is going to be
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equal to bullet
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after that we'll say bullet dot parent
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and this is going to be equal to game
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dot work space and then we're going to
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set the position of the bullet by saying
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bullet dot position and for now we're
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going to set this equal to the guns
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position by saying equal to and then gun
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POS we're gonna be changing this as we
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go along for now though we're just going
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to test to see that whenever the user
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clicks the mouse it's going to create a
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part we don't really care what the part
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looks like at this point we just want to
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see that something is created all right
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so let's go and run the game and check
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it out okay so now whenever the user
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clicks the mouse you can see a part
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appears obviously this is much too large
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for a bullet but it's a good start to
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see that we created an object so now
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that we have an object being created
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whenever the user clicks the mouse the
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next thing we're going to work on is
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getting this object to move just like a
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bullet would we're gonna leave it big
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for now just so it's easy to see that
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motion and once we have the motion down
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then we'll go back and refine the bullet
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so we're gonna head back under the
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bullet create script and what we're
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going to do to make this object move is
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start with a distance variable which is
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going to be the distance between the
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mouse and the gun we're going to define
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that by saying local distance is going
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to be equal to parenthesis Mouse
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position we're gonna say minus gun
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position so you can think of this the
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mouse is far away so we're taking the
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mouse's position and subtracting the gun
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position and what that's going to do
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it's going to give us a distance between
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those two points outside the parentheses
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we're going to say dot magnitude so all
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together that's going to give us the
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distance between the mouse position and
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the gun then we're going to define a
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speed for our bullet so we'll say local
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speed is equal to for the value here I'm
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going to do 500 you can adjust this if
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you want to to make it the bullet faster
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or slower after that we're gonna say
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bullet dot C frame so this will be the
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position of the ball in the game and
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this is going to be equal to C frame dot
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new inside the parenthesis is going to
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start at the guns position
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and go to the mouse position and then
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here we're going to be adding the
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velocity for the bullet by saying bullet
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dot velocity and this is going to be
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equal to bullet dot C frame and then
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we're going to say dot look vector and
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then we're going to multiply this by the
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speed all right so let's go and run the
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code now and see what we have okay so
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now when I click the mouse we have a
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part that shoots off all right so
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everything looks good so far before we
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move on to making the bullet look more
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like a bullet let's go in adjust the
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speed variable so you can see what
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effect that has so back on the script
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here let's make it something small like
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maybe 50 and now if I shoot my gun let's
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take a look at the bullet so you can see
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if I lower the speed it shoots much
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slower and also doesn't shoot as far and
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let's go back to the script now we'll
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try something larger than 500 so before
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was 500 so let's double that and see
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what 1,000 looks like all right so I'm
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going to shoot my gun with the speed set
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to 1000 so it's similar to the 500 but
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it's just going a little bit faster so
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you can adjust that number to whatever
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you like I think 500 looks pretty good
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so that's what I'm going to keep it at
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all right so so far we have created the
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bullet object and use velocity to make
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it move so the last thing we're going to
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do before we end with this video is to
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make it look more like a bullet so to do
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that basically all we're going to be
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doing is changing the properties of it
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so up here we'll we define the bullet
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object let's go ahead and add a couple
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more things so first off I don't need
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this line of code anymore since we're
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using the velocity down here to move the
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object so the first thing I want to do
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is change this from a block part into a
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cylinder and we can do that by saying
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bullet dot shape and this is going to be
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equal to e num dot part type and then
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from the part type we're going to select
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cylinder
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next we need to make our bullet quite a
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bit smaller than it already is and we
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can do that by saying bullet dot size
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and this is going to be equal to a
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vector
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dot new so what you're going to put
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inside these parentheses will be the
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dimensions or the size of the object the
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first part will be the X the second part
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will be the Y dimension and the third
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part will be the Z so after
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experimenting some numbers I think look
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pretty good as a starting point or 0.5
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for the X 0.25 for the Y and 0.5 for the
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Z finally let's go ahead and change the
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color of it and we can do that by saying
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bullet dot brick color is going to be
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equal to brick color dot new inside the
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parentheses you can choose the color for
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now though I'm just gonna choose gold
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alright so let's go ahead and our script
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now and see how our bullet looks
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so now if I shoot my gun it looks a
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little bit more like a bullet it looks
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like it's sideways though so let's see
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if we can fix that real quick so to help
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us out a little bit to see which way we
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need to rotate the object I'm just going
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to insert a cylinder into the game real
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quick and then if we use the rotate
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option and then for the properties of
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this part what I'm going to be looking
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at is the orientation so let's go and
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use the green ball to rotate it to the
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way we want okay and we see for the
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orientation I need to change the Y part
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to negative 90 and on the script here
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the way we're going to change that is by
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saying bullet da orientation and this is
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going to be equal to vector three dot
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new inside the parentheses we're gonna
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put 0 for the x part negative 90 for the
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Y and then 0 for the Z all right so
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let's go ahead and run the code and
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check it out okay and now if I shoot the
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gun the bullets are facing forward so
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feel free to play around with these
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numbers to customize the look of the
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bullet all right so I think this is a
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good stopping point for this video so in
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this video what we did is we took a gun
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model which you can either create or
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take from the toolbox and then we added
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a local script to that gun so that
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whenever the user clicks the mouse it's
00:16:45
going to play a sound and then send a
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few pieces of information to the server
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and then on the server side we actually
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created that bullet object we changed
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some of its properties to make it look a
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little bit more like a bullet and then
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we change the bullets velocity to make
00:16:58
it move alright so I hope you enjoyed
00:17:00
this video and stay tuned
00:17:02
the next one
00:17:02
[Music]
