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PChickenNerdChicken

12/19/2016 9:28 AM ·Spoilers

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Question

How to correctly check for sprite collision?

It appears that my sprites collide even when not touching by their bounds. Is there any way to fix this problem?

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  • raimondz

    12/19/2016 8:02 PM ·Spoilers

    You can use SPCOL Management Number, Star point X, Start point Y, Width, Height to specifie the collision box.

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  • PChicken

    12/19/2016 8:14 PM ·Spoilers

    But will it really fix my problem?

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  • PChicken

    12/19/2016 8:14 PM ·Spoilers

    Also, with SPHOME being 8,8 out of a 16x16 sprite, would the bounds be -8,-8,8,8?

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  • raimondz

    12/19/2016 8:44 PM ·Spoilers

    No, SPHOME only edit the reference point of the sprite. You need to call SPCOL again to generate the new boundaries of the sprite. Run this program and see it by yourself: =========================================== SPSET 0,0 SPCOL 0 SPHOME 0,8,8 SPCOL 0 OUT X,Y,W,H ? FORMAT$("X:%D Y:%D W:%D H:%D",X,Y,W,H) SPHOME 0,8,8 SPCOL 0 SPCOL 0 OUT X,Y,W,H ? FORMAT$("X:%D Y:%D W:%D H:%D",X,Y,W,H)

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  • PChicken

    12/19/2016 8:48 PM ·Spoilers

    Perhaps that is why my sprites kept colliding when not touching...

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