Mega's random Game Maker tips

1. You know how when you set alarms, you can set a different one by putting "alarm[alarmnumber]"? Well you can do that with any variable. For example, for prices on items in stores, you could use price[12], for getting the price of item number 12. Even better is that what goes into the square brackets is not limited to a number. So you could go varialbe1[varialbe2[varialbe3]], and so on if you wish. Really it's only that useful for thing such as inventories, but it could still save your life. You never know.

As I feel like it I will add more, feel free to ask questions if you don't understand any.

Hey can I do one

Yeah sure go ahead

yes, those are arrays/tables and that's how they work

EDIT: and you didn't mention how to access multidimensional arrays like BLAH[x][y][z][w]

This post has been edited by Xgoff on Jun 18 2008, 12:36 PM

2. Have you ever noticed that occasionally, sprites will have a graphical glitch? This actually occurs when a sprite is drawn at a non-whole number, causing some pixels to be drawn wrong. This can be fixed by putting the following code in the Draw event (sorry, this won't work in non-registered/lite GM!)

draw_sprite_ext(sprite_index,image_index,floor(x),floor(y),image_xscale,image_ys
cale,image_angle,-1,image_alpha);

Wait you can do that???

GM only supports 2D Arrays and they go like variable[x,y].

And they're not only useful for inventories, MTC.

ah yes
Would Alarm[1][2][3]... work?
Setting the value of steps in multiple Alarms at once?
Or can you only
Alarm[1]= hi
Alarm[2]= yeah
Alarm[3]= yo mama

etc

I think it only works like the latter method.

The former would save ALOT of time, though.

not really because you would be setting all the alarms to go off at the same time

I know

Maybe alarm[0, 1, 2]?
It works in Python :V

but why would you want to set them all to the same time?

Yea. You could instead just put one alarm...

If you want everything to move in a certain direction at the same time.
(Example)

with (all) { move in a direction }

Or a certain number of

It's all I could think of.

3. Drawing a HUD. You my think "lol set the hud's x to xview and it works", but that makes it drag along. What you want to DRAW it at the xview instead, using draw_sprite.

3A. You can also set x to xview at the end step event.