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Re: Creating A Grid
[Re: DJBMASTER]
#316171
03/22/10 03:13
03/22/10 03:13
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Joined: Dec 2009
Posts: 6
nikka08
OP
Newbie
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OP
Newbie
Joined: Dec 2009
Posts: 6
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1) When creating panels in a function, you have to use the function 'pan_create'. Panel* definitions can only be declared globally. Ok, so I'm using the pan_create function instead of PANEL*. 2) Like point 1, you have to use 'pan_create' function when building a panel at runtime. Also you can only pass constants to certain members of a panel definition. So are you saying that I can't use an array to define the position of the panel? Thank you very much for your quick response.
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Re: Creating A Grid
[Re: DJBMASTER]
#316347
03/23/10 14:56
03/23/10 14:56
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Joined: Dec 2009
Posts: 6
nikka08
OP
Newbie
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OP
Newbie
Joined: Dec 2009
Posts: 6
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Sure you can use an array to define the position. You have 2 choices...
1) If you know the positions already use a global array.
2) If you want to calculate positions and store them in an array, you will need to know how to use 'dynamic memory', with the functions 'malloc/calloc/free'. I am using a global array that I defined all of the positions for. My problem is the actual syntax of the code. Instead of pos_x = 256;, I used pos_x = Gridx[8];. And it errors. So I guess I'm just asking how you would actually code it. Again, thank you for your responses.
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Re: Creating A Grid
[Re: nikka08]
#316354
03/23/10 15:31
03/23/10 15:31
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Joined: Nov 2009
Posts: 89
Germany, NRW
TrackingKeks
Junior Member
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Junior Member
Joined: Nov 2009
Posts: 89
Germany, NRW
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You have to set the position in a loop,not in the panel definition to define the position. I think you have to use pan_setpos.
Last edited by TrackingKeks; 03/23/10 15:33.
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Re: Creating A Grid
[Re: TrackingKeks]
#316376
03/23/10 16:59
03/23/10 16:59
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Joined: Nov 2007
Posts: 1,143
United Kingdom
DJBMASTER
Serious User
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Serious User
Joined: Nov 2007
Posts: 1,143
United Kingdom
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Yes, you can't specify variables in the panel definition. They can only be changed within a function. There's no need for 'pan_setpos' because you can directly modify the positon with 'PANEL*.pos_x/pos_y'...
var gridx[5] = {0,32,64,96,128};
var gridy[5] = {0,32,64,96,128}; // bla bla
BMAP* panel_bmap = "image.bmp";
void CreateGrid()
{
PANEL* p = pan_create("",1);
p.bmap = panel_bmap;
p.pos_x = gridx[0]; p.pos_y = gridy[0];
set(p,SHOW);
}
Of course, this is tedious, so let the computer do the work...
BMAP* bmp = "image.bmp";
void CreateGrid()
{
var i,j,size = 33; // tested with a 32x32 picture.
for(i=0; i<screen_size.x; i+=size)
{
for(j=0; j<screen_size.y; j+=size)
{
PANEL* p = pan_create("",1);
p.bmap = bmp;
p.pos_x = i; p.pos_y = j;
set(p,SHOW);
}
}
}
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