Virtual Arrow Problem...

(Borland C++ Free command line compiler, WinXP)
Ok, I made my engine its all working pritty well. But I have one problem. When I implimented jumping, I expected it to detect if the up and left arrows were down (Because of how its built). But I guess it only detects one or the other. So, when jumping, you will only go up or left even when holding the right arrow and up and with the left to.

(Include windows.h)

So, I tried:

Code:

---

int IsArrowDown() {
 if(GetAsyncKeyState(VK_UP)&SHRT_MAX)
  return Up;
 if(GetAsyncKeyState(VK_DOWN)&SHRT_MAX)
  return Down;
 if(GetAsyncKeyState(VK_LEFT)&SHRT_MAX)
  return Left;
 if(GetAsyncKeyState(VK_RIGHT)&SHRT_MAX)
  return Right;
 if(GetAsyncKeyState(VK_ESCAPE)&SHRT_MAX)
  return Esc;

 return 0;
}

---

Code:

---

int Check(int x) {
 if(x==Right) {
  MoveRight();
  return 1;
  }

 if(x==Left) {
  MoveLeft();
  return 2;
 }

 if(x==Up && x==Right) {
  MoveRight();
  return 3;
 }

 if(x==Up && x==Left) {
  MoveLeft();
  return 4;
 }

 return 0;
}

---

Didint work. I dont see why it doesnt detect either initialy, but it their any way to detect both arrows?

[edit]
Forgot to include the arrow detecting code -,-.

you cannot press both arrow keys at the same time. That won't work with ANY program. But, what you can do is save in another variable which up or down arrow key was last pressed then use that info to determine what direction to move when a left or right arrow key is pressed.

yes, you will get up-arrow and down-arrow keyboard codes in rapid succession (and not necessarilly in sequence!), not some combined code for both keys.

The only keys generating those are the alt, shift, and control keys (and now the Win keys as well on newfangled keyboards produced over the last decade or so).

it seems you have overfunctionitis

Why not just do

Code:

---

if(GetAsyncKeyState(VK_UP)&SHRT_MAX)
  //move up
 if(GetAsyncKeyState(VK_DOWN)&SHRT_MAX)
  //move down
 if(GetAsyncKeyState(VK_LEFT)&SHRT_MAX)
  //move left
 if(GetAsyncKeyState(VK_RIGHT)&SHRT_MAX)
  //move right
 if(GetAsyncKeyState(VK_ESCAPE)&SHRT_MAX)
  //quit

---

You've reduced the size, not lost functionality, and can now handle any number of keys at the same time.

That would boost how fast it goes, but I call the IsArrowDown function for other reasons. (Like the menu) so it becomes inconvenient to write the same code several times.

So are you saying it will never return both arrows at once? But then why is it not returning arrows period? Thank you for your answers, I will try and adjust my code a bit.

[edit] Is it possible to return an int array with a function? That way no arrow would have return priority.

Quote:

---

Is it possible to return an int array with a function?

---

Not really, but you could pass in an array, use a global array, use a container class (like vector), or write your own wrapper class.

If you really want to return an int/bool array, you could allocate it dynamically.

I think a class would be the easiest sence I dont know how to use vectors, and a global would be a memory waster :P. Why didint I think of that? -,-.

Alright, I think making my arrow function return ints per down arrow will help things, thanks!