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Dark GDK / SETting the angle of a sprite

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Ascent321

Years of Service

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Joined: 2nd Oct 2007

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Posted: 29th Jul 2008 21:41

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Im trying to make a sprite follow the cursor and point towards it.
The sprite follows the cursor just fine, but it wont point towards it. Im guessing this has to do with the Rotate function not SETTING the angle but adding to the current angle.
How would I fix this?

+ Code Snippet

		mouseX = dbMouseX();
		mouseY = dbMouseY();

		p1->angle = atan2((mouseY - p1->y), (mouseX - p1->x));
		p1->x+=cos(p1->angle)*p1->speed;
		p1->y+=sin(p1->angle)*p1->speed;


		dbRotateSprite(1, p1->angle);
		dbSprite(1, p1->x, p1->y, 1);

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IanM

Retired Moderator

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Joined: 11th Sep 2002

Location: In my moon base

Posted: 29th Jul 2008 23:17

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No, it does set the angle, but the GDK uses degrees rather than radians. You only need use the dbSin, dbCos and dbAtanFull functions instead of the standard C++ functions.

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