How To Synchronize the Archer in Shooting an Arrow

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elsole

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Joined: 4th Dec 2009

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Posted: 5th Dec 2009 13:20

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I was wondering since i started to use dark GDK i could not synchronize my sprited archer with its arrow. The archer just played its sprites while the arrow keeps going from left to right. Could anyone help me wherein when the archer will set the string of his bow free the arrow will then fly out from his bow? I will really appreciate it.

Here is my code:

+ Code Snippet

#include "DarkGDK.h"


void DarkGDK ( void )
{

	dbSyncOn   ( );
	dbSyncRate ( 60 );

	dbSetDisplayMode(1024, 768, 32);

	dbMaximizeWindow();

	dbCreateAnimatedSprite(1, "archersprite.png", 2, 2, 1);
	dbSprite (1, 70, 122, 1);

	dbLoadImage ("arrow.png", 2);

	bool bShot = false;
	int iArrow = 0;

	// our main loop
	while ( LoopGDK ( ) )
	{
			dbPlaySprite(1, 1, 4, 180 );		
			if(bShot == false)
			{
				iArrow = dbSpriteX(1) + 35;
				dbSprite (2, iArrow, dbSpriteY(1)+70, 2);
				dbSetSpritePriority(2, 1);
				bShot = true;
			}
			if(bShot)
			{
				iArrow += 8;

				dbSprite(2, iArrow, dbSpriteY(2), 2);
				if(iArrow > 800)
				{
					dbDeleteSprite(2);
					bShot = false;
				}
			}

		dbSync ( );
	}

	return;
}

Thanks in advance!

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Hassan

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Joined: 4th May 2009

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Posted: 5th Dec 2009 17:02

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first, sprite 1 wont play because you have playsprite() inside the loop, you can either put a dbLoopSprite() outside the loop, or :

+ Code Snippet

//inside the loop
if ( !dbSpritePlaying ( 1 )
dbPlaySprite ( 1 );

you want it like : you have a sprite which is the archer ( animated ) and an arrow sprite, and you want the archer to use the arrow once his sprite reaches a specific animation?

+ Code Snippet

dbPlaySprite ( 1 );
while ( LoopGDK() )
{
if ( dbSpriteFrame ( 1 ) == shooting_animation ) 
bShot = true
if ( !bShot ) 
{ 
dbSprite ( ID, startingX, startingY, img ); 
dbHideSprite ( ID ); 
iArrow = StartingX;
}
if ( bShot )
{
dbShowSprite ( ID );
iArrow+=8;
dbSprite ( ID, iArrow, Y, img );
if ( iArrow >= EndingX )
{
bShot = false;
dbPlaySprite ( 1 );
}
}
dbSync();
}

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elsole

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Posted: 6th Dec 2009 04:32

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Thanks for the reply but i think the dbPlaySprite(1) does not take only 1 argument that's what it says when i build it. And the dbSpritePlaying are undeclared identifier.

But I get your idea. Sorry my post was lacking of info what I meant was that when the bow flies out the archer will not yet play its animation until the arrow reaches the edge of the screen. If it has then it will play again.

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Isocadia

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Joined: 24th Jul 2009

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Posted: 6th Dec 2009 08:39

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Get the position of the arrow, if its bigger than the screen resolution than replay animation.:

psuedo code or somthing like that

+ Code Snippet

if (dbSpritePosition > dbScreenWidth )
{
dbPlaySprite
}
else
{
do not play sprite but move arrow or something, if you do that somewhere else just do nothing. }

Hope this helped you.

Isocadia

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Hassan

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Posted: 6th Dec 2009 13:06

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yes it doesnt take one argument lol, by writing the code i didnt mean to give you code to copy paste, i was giving the idea xD

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elsole

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Posted: 6th Dec 2009 14:58

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Hey guys, I have made my archer synchronize with the bow and stop it from animating the archer to fire again unless it hits something.

Thank you all for you help really appreciate it.

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elsole

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Posted: 6th Dec 2009 15:14

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@Hassan

Oops sorry my bad...i was having a lot of thoughts and make me confuse but i got your idea. It really help a lot.

thanks

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Dark GDK / How To Synchronize the Archer in Shooting an Arrow