Re: Taking a part from character

[Erik <br0ke@math.smsu.edu>]

On 03-Jan-2000 Wille Huuskonen wrote:
> Christian Reiniger <warewolf@mayn.de> wrote:
> 
>> Wille Huuskonen wrote:
>> >I loaded my sprites from a file to a character 'cars'. How I put
>> >0 , 0 - 10 , 10 from 'cars' to a character car1?
>> 
>> Wait a second - what do you want to know exactly? You're using some
>> toolkit, right? Which one? And perhaps you could post some example code.
> 
> 
> No,  I only don't know C enough to make this.
> 
> I have a character here: (this is just a example)
>     unsigned char cars[9*6]={
>     0, 3, 3, 0, 0, 0, 3, 3, 0,
>     9, 9, *9, *9, 9, 9, 8, 8, 0,
>     6, 4, *4, *4, 4, 6, 7, 7, 8,
>     2, 4, *4, *4, 4, 2, 7, 7, 8,
>     1, 1, 1, 1, 1, 1, 5, 5, 0,
>     0, 3, 3, 0, 0, 0, 3, 3, 0};
> 
> And I want to get those bytes(?) marked with * to a
> char[2*3] car.
> 

make a new array and copy the bits in by hand...

this is ugly and probably highly inaccurate...

for(y=0;y<newheight;y++)
    for(x=0;x<newwidth;x++)
        newarray[x+(y*newwidth)]=oldarray[x+xoffset+(y+yoffset)*oldwidth];

it'd be conceptually easier to make a 2dim array I think :) and read stuff on
blitting. (it'd be cheaper to memcpy entire rows at a time, too)

        -Erik <erik@smluc.org> [http://math.smsu.edu/~br0ke]

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