Print Page - Pixel Perfect Sprite Collision (bounding, Shape, & Pixel)

Title: Pixel Perfect Sprite Collision (bounding, Shape, & Pixel)
Post by: kevin on June 09, 2005, 01:09:27 PM

Pixel Perfect Sprite Collisions In PlayBasic

This demo shows how Play Basics Vector Shape Sprite collision mode can be used to get fast, pixel perfect collisions for any kind of sprite, including rotated & scaled sprites.

PlayBasics sprite system has provision for seven different collision types. Those being Static Rect, Rotated Rect, Circular, Sliding,Sticky , Vector Shape and pixel perfect. All types can be mixed together, ensuring you can find the right balance for your collision needs.

Demo Controls:
==============

Mouse Button = Scale Test Sprite
F1 Key = Toggle Sprite Collision Debug Mode
F2 Key = Change Collision Mode (Bounding Box, Shape & Pixel Perfect)
Space Key = Hide Sprites
Esc Key = Exit Demo

Download

[plink]Download PlayBasic Pixel Perfect Sprite Collision (bounding,Shape & pixel perfect) (http://www.underwaredesign.com/getfile.php?file=pub/PlayBasic/Examples/UW/PB_PixelPerfectSpriteCollisions.zip) [/plink]

Title: Sprite Collision (Pixel Perfect) using Shapes
Post by: kevin on August 03, 2006, 12:42:27 PM

not after vector sprite collisions ?

well follow this link more info Pixel Perfect Collision on Rotated/Scaled sprites in PlayBasic (http://www.underwaredesign.com/forums/index.php?topic=1374.0)

Title: Sprite Collision (Pixel Perfect) using Shapes
Post by: Ian Price on August 03, 2006, 02:10:55 PM

Kevin, I've just tried to use the pixel perfect sprite code that you posted a while back, and I get a "Not enough parameters for the "compareSpritePixels" command. I'm using PB 1.46

The command in your code reads - CompareSpritePixels(spr,spr2)

I presume this has been updated, but I can't see the correct usage in your updates here.

What are the correct parameters now?

Title: Sprite Collision (Pixel Perfect) using Shapes
Post by: thaaks on August 03, 2006, 02:34:24 PM

Ian, CompareSpritePixels(spr, spr2, precision#) where precision is a float between 0.0 (lowest precision) and 1.0 (highest precision). Kevin says 0.5 is good enough most of the time - I would just trust him :D

Title: Sprite Collision (Pixel Perfect) using Shapes
Post by: Ian Price on August 03, 2006, 04:14:22 PM

Cheers :)

I'll have a play with later.

Title: Sprite Collision (Pixel Perfect) using Shapes
Post by: kevin on August 03, 2006, 11:14:20 PM

or you enable SpriteCollisionMode 6

Title: Sprite Collision (Pixel Perfect) using Shapes
Post by: Ian Price on August 04, 2006, 01:16:54 AM

Thanks Kevin.

UnderwareDESIGN

PlayBASIC => Show Case => Topic started by: kevin on June 09, 2005, 01:09:27 PM