moving a line in videomode 320*200

**GanglyLamb** · 12-25-2002

I dont know if this is the right place to ask this question but anyway.
ive got a function called setpix(color,x,y);
this plots one pixel at the x and y co-ordinate with a certain colour

Now the only thing i can come up with to let a line move is this way

Code:

int i,x=140,y=199;
do{
      x=x-1;
      paddle(15,x,y);
      /*wait some millisec*/
      paddle(0,x,y);
      }
      while(getch()=='q');

this is only a part of the whole coded but i guess you already figured how what im trying to do here
Note that this way will only work if the background is also color=0;
Now i just wanna know if this is a "good" way to move something accros the screen or not....
I just know there has to be a better way because now there are small periods where u only see black and no line at all (this is when the loop restarts.....

::edit::
can somebody help me out cause ive been thinking about this a while and with my little bit of knowledge i was only able to come up with this
IF you ppl need more code to actually see what im trying to say then ill post it (just ask for it).

**GanglyLamb** · 12-26-2002

Hmmm was this a bad question or m i sortof banned on this forum...

**Hammer** · 12-26-2002

Originally posted by GanglyLamb
Hmmm was this a bad question or m i sortof banned on this forum...

You're not banned

but your question isn't the best.

Are you trying to write a game loop? If so, maybe try the game board, as this one is for C only. Let me know if you want this thread moved.

**GanglyLamb** · 12-27-2002

heres some more code .....

Code:

int setpix(int color, int x,int y)
{
	union REGS regs;
	regs.h.ah = 0x0C;  /*  pixel plot */
	regs.h.al = color;
	regs.x.cx = x;     /* x location   0..319  */
	regs.x.dx = y;     /* y location  0..199  */
	int86(0x10, &regs, &regs);
	return 0;
	}
int paddle(int color,int x,int y)
{
	int i;
	for(i=0;i<40;i++){
							x+=1;
							setpix(color,x,y);
							}
	return 0;
	}
int main()
{
	int i;
	int x=140,y=199;
	paddle(15,x,y);
	do{
		/*to move the paddle tothe left*/
		if(getch()=='q'){
							 do{
								 x=x-4;
								 paddle(15,x,y);            /*paddle white color middle screen*/
								 delay(50);
								 paddle(0,x,y);             /*paddle blackcolor (else theres a line instead of justthe paddle*/
								 }
								while(getch()=='q');
								 }
	  }
	  while(getch()!='b');                           /*press Btoexitthe app*/
settext();
return 0;

	}

I hope ive cleared things out a bit for now if there are anymore questions about the code just ask..<
::edit:: sry bout the wrong indentations (got mixed up while copying pieces of the code)

**Hammer** · 12-27-2002

>>If you could move this thread to the game board
Done.

You might want to consider sorting out your tabs in your code, it doesn't display too well. Personally, I don't use a tab, instead my editor inserts 4 spaces when I hit the tab button. [/OT] [edit] Oops, I didn't see your edit re tabs.

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moving a line in videomode 320*200

If you could move this thread to the game board :-)

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