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2D All the way! / Pointing Sprites?

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Zero Blitzt
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Posted: 9th Apr 2004 08:08
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Someone gave me the idea for a Robotron remake*, so I want to know if there is a way to point a sprite towards another sprite. There is no "point sprite" command, so does anyone know how this can be done? This way I can start coding tomorrow morning when I wake up... I'm real sleepy now.

*Someone on these boards gave me the idea, sorry for stealing it...

Good night!

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spooky
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Posted: 9th Apr 2004 14:50
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ATANFULL is what you need. Try this:



Boo!
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Zero Blitzt
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Posted: 10th Apr 2004 18:07 Edited at: 11th Apr 2004 03:14
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Sorry for double post (this one and the one below...)

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Zero Blitzt
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Posted: 11th Apr 2004 00:35
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Can Anyone tell me why the enemy wont move at all in the attached code?

Thanks, and thanks to spooky.

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Zero Blitzt
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Posted: 11th Apr 2004 00:36
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Can anyone tell me why the enemy sprite wont move at all? It rotates...

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Zero Blitzt
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Posted: 11th Apr 2004 03:46
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The ATANFULL is definitely not working. I did get it to point at the main character's sprite, but when the main's sprite moved, the enemy did not rotate quickly enough.

Please help, my source is attached above, I have a big headache.

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guru of boredom
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Posted: 12th Apr 2004 06:35
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u need the distance from the pointing sprite to the target sprite.

xdist=pointerx-targetx
ydist=pointery-targety
ang=atanfull(xdist,ydist)

if that dosent work switch the order of pointer and target

we are not outnumbered! we are just in a target rich enviroment!
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Code Stealer
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Posted: 12th Apr 2004 18:11
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Try this source, its a homing missile code using trig and ATAN.You will have to make a pointer image called arrow.bmp

BTW, what is ATANFULL?

GIve me more power!
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spooky
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Posted: 13th Apr 2004 02:51
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The other problem is this line:

sprite robo1,enemyx#,enemyy#,robo1

as enemyx# and enemyy# naever change in program you are constantly repositioning sprite at same position every loop.

Move this line outside of main loop.

Boo!
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Zero Blitzt
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Posted: 14th Apr 2004 00:48
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Thank you so much everyone for all of your help. This is why I love DarkBasic! I've had it for 3 months, I'm a ½ newb, yet people still help me without flaming me.

You can expect to see this game soon, I'm not gonna abandon it like my other game...

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