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DarkBASIC Discussion / invisible sprite

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x3meblue
16
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Joined: 11th Dec 2008
Location: Nuremberg, Germany
Posted: 17th Dec 2008 15:52
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Hello!

Is it possible to make one invisible sprite, so you can see the background through, but still have collision with this sprite?

greetz

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Caleb1994
16
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Joined: 10th Oct 2008
Location: The Internet you idiot!
Posted: 17th Dec 2008 16:50
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will it still detect collision if you hide it?
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steve paul thomas
16
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Joined: 4th Nov 2008
Location: United Kingdom
Posted: 17th Dec 2008 16:52 Edited at: 17th Dec 2008 17:14
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Just started up DBC.. Sprite detection will work if the image is not all rgb(0,0,0) and HIDE SPRITE is used.

I don't Adam and believe it!
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x3meblue
16
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Joined: 11th Dec 2008
Location: Nuremberg, Germany
Posted: 17th Dec 2008 16:57
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Hi!

no, for make it more clear, i mean it this way:

i have one map for a 2d rpg as background and for
the collision dectection i want use one big sprite
in the shape of the map, that the ways you can pass are free and the places where the player can not go will be checked with the sprite collision. For the player still see the map normal the
sprite must be unvisible.

greetz

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Robert The Robot
18
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Joined: 8th Jan 2007
Location: Fireball XL5
Posted: 17th Dec 2008 17:03 Edited at: 17th Dec 2008 17:09
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You'll need this command:
SET SPRITE Sprite Number, Backsave, Transparency

Set transparency to one to make all pixels coloured black (RGB(0,0,0)) invisible, so whatever is behind them will show through. Keep backsave at 1, or the sprite will leave a trail when it moves.

Make your sprite an exact clone of you main map, but for your sprite image, colour the acceptable roadways black (RGB(0,0,0)). Use this new image as a transparent sprite, and check it for collision.

Hope this helps!

[Edit] You must have posted while I was typing I've edited the above part to make more sense based on your new post.

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x3meblue
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Location: Nuremberg, Germany
Posted: 17th Dec 2008 23:35
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hey, thank you!

this is what i was looking for!

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