Drawing counture around sprites and objects with pixels

SDL Development
1

Hi,
how can I gradually draw a counture around some object or sprite with pixels (that
object doesn’t need to be rectangular).Also, that counture line needs to be like
independent object so I can blink it or make it dissapear gradually.

dekyco

2

It might be easy to blit the sprite onto a surface representing your
outline four times at different offsets, like this:

OOO
OXO
OOO

becomes:

OXO
XOX
OXO

Then you would have to mask out the center, probably, unless the
outline will never be drawn without the sprite it originates from
being drawn over top of it.On Thu, Mar 25, 2010 at 11:58 AM, dekyco wrote:

Hi,
how can I gradually draw a counture around some object or sprite with pixels (that
object doesn’t need to be rectangular).Also, that counture line needs to be like
independent object so I can blink it or make it dissapear gradually.

dekyco

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