GameMaker When adding to X value what is the measurement used?

[Snayff]

Evening all,

I am sure this is super simple but a google and review of the help docs didn't provide the answer. When I move the player by incrementing the player objects X value (say by a value of 5) what is that number a measurement of? Is it pixels or some other unit?

I ask because rather than guessing wildly I want my movement information to be a % of a standard tile size.

Any help would be appreciated!

-Snayff

 

[obscene]

A pixel. Generally. The same unit used to determine room_width and room_height.

 

[Snayff]

Thanks buddy!

 

[FrostyCat]

If you want the movement to be a fraction of a tile, multiply tilemap_get_tile_width() or tilemap_get_tile_height() by the fraction.

Anyone who has learned unit conversions in grade school should be familiar with the process.

 

[Snayff]

I didn't know about those methods, thank you for sharing them.

 

[RichHopefulComposer]

If you want the movement to be a fraction of a tile, multiply tilemap_get_tile_width() or tilemap_get_tile_height() by the fraction.

Anyone who has learned unit conversions in grade school should be familiar with the process.

Good thing he wasn't asking how to do fractions, or I would've been worried about him.

 

[TheouAegis]

Really? I mean, it is kind of algebra-level, I think. I dunno, I haven't taken algebra in 18 years. It's also covered in rudimentary physics.

F(x) = a * b/c

Distance Traveled = Time * Rate Of Travel

The Time is 1 step, so we can ignore that.

So if your rate of travel is, say, 5% of a tile width per step and your tiles are 32 pixels wide each, then your rate of travel will be 32 * 5/100, or 32/20, or 8/5.

 

[Snayff]

Thank you for breaking it down so clearly buddy.

I hope I don't sound ungrateful but I might have been unclear in my initial question; I wasn't sure what the "1" meant in relation to the game world in "player object.x + 1" . If it is a pixel then I can work out the % movement.

Though at the risk of sounding silly, as you mention time increments is that step/room_speed ?

 

[TheouAegis]

The only time you should worry about reading room_speed really is for calculating seconds roughly.

n seconds = n * room_speed

But your dilemma sounds like time increments are no concern here.