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[ajf]

Because it's a fun way to waste time and I want to do it.

From the GML help file:

A program consists of a set of instructions, called statements. A program must start with the symbol '{' and end with the symbol '}'. Between these symbols there are the statements. Statements must be separated with a ';' symbol.

That's a very interesting use of the word "must".

[Malpracticeisdead]

So is this a thread where we dig into help files to debate semantics or is there a point to this??

[Phantom Brave]

fun fact: move_contact_solid doesn't change previousx and previousy, so if you move something to contact and it gets a collision later in the same frame, it never moves from its original location but still experiences the movement.

[Catman]

Why move using x and y modifying when you can use motion_add, it's so much smoother and you can stack them.

[ajf]

Why move using x and y modifying when you can use motion_add, it's so much smoother and you can stack them.

Um, that's the same as adding to hspeed and vspeed.

[Phantom Brave]

sometimes you literally need to move something to a certain place, no motion no nothing
motion_add is absolutely worthless for that :V

[Catman]

Why move using x and y modifying when you can use motion_add, it's so much smoother and you can stack them.

Um, that's the same as adding to hspeed and vspeed.

According to the manual, motion_add uses vector addition which surely isn't the same.

[ajf]

Why move using x and y modifying when you can use motion_add, it's so much smoother and you can stack them.

Um, that's the same as adding to hspeed and vspeed.

According to the manual, motion_add uses vector addition which surely isn't the same.

yes, that's the same thing. hspeed and vspeed are two components of a 2-dimensional vector. x and y are also, and each step the hspeed/vspeed vector is added to the x/y vector (i.e. speed += acceleration)

[ajf]

Pascal-style block symbols considered exactly equivalent to non-pascal-style block symbols

begin
    var z;
    z := 0
    if z <> 3 then {
        z := 2
    end
    show_message(z)
}

results in:
2

 

[Dusty]

Sorry but what does := and <> mean?
Never seen that in code before.

[Intel Guard]

hilarious thread

[ajf]

Sorry but what does := and <> mean?
Never seen that in code before.

Pascal idioms. := is equivalent to = for assignment (and = is used for equality, not ==). <> is equivalent to !=, this is also seen in BASIC.

[Port]

gml is too syntax-free

Code: [Select]

var xx, yy, nn;
if can_shoot = true then begin
   can_shoot := false
   alarm[0] := 5
   xx := x + lengthdir_x(14, direction)
   yy := y + lengthdir_y(14, direction)
   nn := instance_create(xx, yy, obj_bullet)
   with nn begin
      speed := obj_tank.speed + 3
      direction := obj_tank.direction
   end
end

what is this

a mix of Pascal, JavaScript and Lua?

sometimes I don't even

[MedO]

Maybe GM just does some search/replace on GML code and then passes the result to eval
Except that Delphi apparently doesn't have eval, so there goes that conspiracy theory.

[NAGN]

gml is too syntax-free

Code: [Select]

var xx, yy, nn;
if can_shoot = true then begin
   can_shoot := false
   alarm[0] := 5
   xx := x + lengthdir_x(14, direction)
   yy := y + lengthdir_y(14, direction)
   nn := instance_create(xx, yy, obj_bullet)
   with nn begin
      speed := obj_tank.speed + 3
      direction := obj_tank.direction
   end
end

what is this

a mix of Pascal, JavaScript and Lua?

sometimes I don't even

its a miracle that the gml parser actually works