How To Have Bullets

Hi gamers! So You're here about bullets? Tsk, tsk, tsk you're a violent person. Alright well this is the post for you. Just make sure you only shoot in the game.
*I feel like listing the steps in this post*

1.) You need 2 sprites and 2 objects for the player & the bullet. I will use a square sprite and call it obj_guy.















2.) Go to obj_guy's object and select the "create event"
3.) Go to the control tab and right-click Set Variable
4.) fill this in.
Variable: ammo
    Value: 10 (this is your amount)
                    click ok
5.) Now go to the events and click "key press - right"
6.) Go to controls tab click test variable.  fill in
  Variable: ammo
      Value: 0
Operation: equal to
         Click ok
7.) Click...
Start of block
exit this event
end of block
ELSE
Set variable (Variable: ammo Value: -1) (RELATIVE)
create moving instance fill in
   Object: (your bullet object)
           X: 0
           Y: 0
    Speed: (how fast you're bullet shoots)
Direction: (this depends which direction you will shoot)

NOTE: Gamemaker directions
  right: 0
     up: 90
    left: 180
down: 270

By the end your screen should look like this:

Now I'm assuming you want to pick up ammo somehow so...
1.)make a sprite for your ammo box
2.)make an object. use that sprite.
3.)Now go to obj_guy's window
4.)Use collision with ammo box
5.)Set variable ammo +(however much ammo the box has)(RELATIVE)
6.)destroy the instance(Other)

There you go you violent fellow gamer. See ya!


A few FAQS (well...not really asked, but these are questions I imagine a few of violent gamers asks)

Q: Why can I only shoot once?
A: Make sure you press relative with the shooting

Q: Is there a way I can see the amount of ammo left?
A: Yep! what you need to do is make a <no sprite> object. Make a draw event. go to draw variable.
1.)At the top pick obj_guy
Self
Other
Object: obj_guy <= this one
2.)Type the ammo variable
3.)select the X and Y
4.)pick relative if you want your ammo above your head.


Happy gaming!

The Magic Of Variables

Hi gamers!

This post will only introduce the meanings and uses of variables.
A variable stores information in few letters for the creator to understand.The variable actions can be found in the control tab with 3 different actions:

Set variable-Starts a variable (mainly used in the create event. ex.ammo)

Test variable-This sees if the variable is allowed for the next action (if ammo is equal to 0-exit this event)

Draw variable-This action draws the value of a certain variable (the ammo left in the gun)


Variables are adequate for game play in most games. The cool thing about variables is that they can be used for ANYTHING.
Some examples of a few useful variables:
Ammo
Lives
Health
MP/magic points
Score
Variables can even be used for jumping.

Later posts will have examples of variables.
See ya fellow creators and happy gaming!