Sprite Alpha problem - GameCreators Forum

Author

Message

ohsuplol

15

Years of Service

User Offline

Joined: 21st Apr 2009

Location:

Posted: 21st Apr 2009 08:41

Link

So I have 1 sprite drawn on the screen, it is acting as an
"intro" so what i want it to do is fade in, then fade out. It fades in perfectly, but it wont fade out. I set many breakpoints in the code and the loops are working as they should, but for some reason the alpha is not being changed in the 2nd loop.

+ Code Snippet

dbSetSprite (1, 1, 1);
       dbSprite (1,0,0,1);
	   dbSetSpriteAlpha ( 1, 0 );

	for(int i=0; i<50; i++)
	{
		dbSleep(50);
		dbSetSpriteAlpha(1,i);
		dbSync ( );

		if (i==49)
		{
			break;
		}
	}   

	    // dbSleep(1000);
	 	 for(int i=50; i>1; i--)
	{
		dbSleep(50);
		dbSetSpriteAlpha(1,i);
		dbSync ( );

		if (i==2)
		{
            dbSetSpriteAlpha(1,0);
			break;
		}

Back to top

Profile PM

bjadams

AGK Backer

16

Years of Service

User Offline

Joined: 29th Mar 2008

Location:

Posted: 21st Apr 2009 15:48

Link

try this:

Quote: "
dbSetSprite (1, 1, 1);
dbSprite (1,0,0,1);
dbSetSpriteAlpha (1, 0);

int i;

for(i=0; i<50; i++)
{
dbSleep(50);
dbSetSpriteAlpha(1,i);
dbSync ();
}

for(i=50; i>1; i--)
{
dbSleep(50);
dbSetSpriteAlpha(1,i);
dbSync ();
}

dbSetSpriteAlpha(1,0);
"

Back to top

Profile PM Email

ohsuplol

15

Years of Service

User Offline

Joined: 21st Apr 2009

Location:

Posted: 21st Apr 2009 18:44

Link

Thanks for replying, I tried what you suggested and it yielded the same results. I set a break point at dbSetSpriteAlpha(1,i) in the second loop and watched int i count down but the alpha not changing.
have no idea what could be causing this.

Back to top

Profile PM

Diggsey

18

Years of Service

User Offline

Joined: 24th Apr 2006

Location: On this web page.