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zeldaking
Power User
Joined: 31 Jul 2011
Posts: 474
Location: Utah
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 Posted: 22 Apr 2012 05:47:41 pm Post subject: |
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| Well then they aren't Global variables. Make them before you start the int main() loop. Try that. Read a tutorial please, it will make life more enjoyable. |
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Ashbad
I am governor Jerry Brown
Joined: 01 Dec 2010
Posts: 2423
Location: There lived a certain man in Russia long ago
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| Posted: 22 Apr 2012 05:51:18 pm Post subject: |
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Could you show us where and how they're defined, and the errors they provide?
_________________
-Ashbad |
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Spenceboy98
Super-Expert
Joined: 06 Jan 2012
Posts: 855
Location: In the TARDIS
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| Posted: 22 Apr 2012 05:59:33 pm Post subject: |
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Code:
struct Coord cur;
cur.x = 128;
int w = rand()%(340-45+1) + 45;
int b = rand()%(340-45+1) + 45;
int j = 0;
int s = 0;
while(1) {
int key = PRGM_GetKey();
if(key == KEY_PRGM_MENU) { GetKey(&key); }
moveCursor(&cur);
CopySprite(BulletBackground, 0, 0, 384, 216);
CopySpriteMasked(SpenBullet, cur.x, 159, 38, 43, COLOR_RED);
CopySpriteMasked(Banana, w, j, 75, 80, COLOR_RED);
CopySpriteMasked(LSDOMG, b, j, 34, 34, COLOR_RED);
if(w == cur.x && j == 159)
break;
if(b == cur.x && j == 159)
s++;
j+=8;
if(j > 216) {
int j = 0;
int w = rand()%(340-45+1) + 45;
int b = rand()%(340-45+1) + 45;}
if(keydown(KEY_PRGM_EXIT)
break;
Bdisp_PutDisp_DD();
Bdisp_AllCr_VRAM();
} }
if(keydown(KEY_PRGM_SHIFT) && y == 145) {
while(1) {
CopySprite(Instructions, 0, 0, 384, 216);
if(keydown(KEY_PRGM_EXIT))
break;
Bdisp_PutDisp_DD();
Bdisp_AllCr_VRAM();
}
return 0;
}
Bdisp_PutDisp_DD();
Bdisp_AllCr_VRAM();
}
return 0;
}
What it gives me:
Code:
main.c:104:7: warning: unused variable 'b' [-Wunused-variable]
main.c:103:7: warning: unused variable 'w' [-Wunused-variable]
main.c:102:7: warning: unused variable 'j' [-Wunused-variable]
main.c:106:5: error: expected ')' before 'break'
main.c:109:3: error: expected expression before '}' token
make: *** [main.o] Error 1
By the way, I don't see anything about global variables in the tutorial. |
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souvik1997
Guru-in-Training
Joined: 19 Apr 2010
Posts: 2870
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Ashbad
I am governor Jerry Brown
Joined: 01 Dec 2010
Posts: 2423
Location: There lived a certain man in Russia long ago
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| Posted: 22 Apr 2012 06:06:34 pm Post subject: |
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Well, you're creating two sets of the b, w, and j variables inside the while loop, effectivly ignoring the higher-scoped ones. If you're just trying to reset those ones instead of making new ones, take the 'int' away from each time you try to feed them new values.
_________________
-Ashbad |
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souvik1997
Guru-in-Training
Joined: 19 Apr 2010
Posts: 2870
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| Posted: 22 Apr 2012 06:12:13 pm Post subject: |
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| Quote: | | By the way, I don't see anything about global variables in the tutorial. |
In that case, you should use Google to find out what global variables are. Not everything is going to be explained in a tutorial, and you might have to do a bit of searching to find what you're looking for.
_________________
CALCnet Tournament-38%
deviantArt
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Spenceboy98
Super-Expert
Joined: 06 Jan 2012
Posts: 855
Location: In the TARDIS
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| Posted: 22 Apr 2012 06:14:42 pm Post subject: |
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| It works now, but the sprites that use the rand get generated every frame. So it looks like are getting jerked around. |
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Ashbad
I am governor Jerry Brown
Joined: 01 Dec 2010
Posts: 2423
Location: There lived a certain man in Russia long ago
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| Posted: 22 Apr 2012 06:15:58 pm Post subject: |
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What type of effect are you going for then, with their movements?
_________________
-Ashbad |
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Spenceboy98
Super-Expert
Joined: 06 Jan 2012
Posts: 855
Location: In the TARDIS
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| Posted: 22 Apr 2012 06:17:12 pm Post subject: |
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| I'm making an object scroll to the bottom of the screen and when the object hits the bottom, it generates a new one. |
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Ashbad
I am governor Jerry Brown
Joined: 01 Dec 2010
Posts: 2423
Location: There lived a certain man in Russia long ago
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| Posted: 22 Apr 2012 06:18:35 pm Post subject: |
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| Spenceboy98 wrote: | | I'm making an object scroll to the bottom of the screen and when the object hits the bottom, it generates a new one. |
Then each frame you should check to see if the enemy's y position is at or past a certain point, and if it is, then reset it with the rand function.
_________________
-Ashbad |
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Spenceboy98
Super-Expert
Joined: 06 Jan 2012
Posts: 855
Location: In the TARDIS
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| Posted: 22 Apr 2012 06:20:29 pm Post subject: |
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I did. It does it still. Here's code:
Code:
int main() {
int y = 129;
while(1) {
int key = PRGM_GetKey();
if(key == KEY_PRGM_MENU) { GetKey(&key); }
CopySprite(BulletMenu, 0, 0, 384, 216);
CopySpriteMasked(BulletMenuSelector, 7, y, 18, 16, COLOR_RED);
if(keydown(KEY_PRGM_UP) && y>129)
y-=16;
if(keydown(KEY_PRGM_DOWN) && y<145)
y+=16;
if(keydown(KEY_PRGM_SHIFT) && y == 129) {
while(1) {
struct Coord cur;
cur.x = 128;
int w = rand()%(340-45+1) + 45;
int b = rand()%(340-45+1) + 45;
int j = 0;
int s = 0;
int key = PRGM_GetKey();
if(key == KEY_PRGM_MENU) { GetKey(&key); }
moveCursor(&cur);
CopySprite(BulletBackground, 0, 0, 384, 216);
CopySpriteMasked(SpenBullet, cur.x, 159, 38, 43, COLOR_RED);
CopySpriteMasked(Banana, w, j, 75, 80, COLOR_RED);
CopySpriteMasked(LSDOMG, b, j, 34, 34, COLOR_RED);
if(w == cur.x && j == 159)
break;
if(b == cur.x && j == 159)
s++;
j+=8;
if(j < 216) {
j = 0;
w = rand()%(340-45+1) + 45;
b = rand()%(340-45+1) + 45;}
if(keydown(KEY_PRGM_EXIT))
break;
Bdisp_PutDisp_DD();
Bdisp_AllCr_VRAM();
} }
if(keydown(KEY_PRGM_SHIFT) && y == 145) {
while(1) {
CopySprite(Instructions, 0, 0, 384, 216);
if(keydown(KEY_PRGM_EXIT))
break;
Bdisp_PutDisp_DD();
Bdisp_AllCr_VRAM();
}
return 0;
}
Bdisp_PutDisp_DD();
Bdisp_AllCr_VRAM();
}
return 0;
}
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Ashbad
I am governor Jerry Brown
Joined: 01 Dec 2010
Posts: 2423
Location: There lived a certain man in Russia long ago
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| Posted: 22 Apr 2012 06:22:06 pm Post subject: |
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I'm not sure if I'm allowed to help you with your contest entry to the point of writing some code for you, but I can make one suggestion so that I can make some points about why it might not be working: I can hardly read that code. Perhaps tab it in correctly, and use curly bracket blocks for if-statements when possible?
_________________
-Ashbad |
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KermMartian
Site Admin
Joined: 14 Mar 2005
Posts: 55882
Location: Earth, Sol, Milky Way
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| Posted: 22 Apr 2012 06:26:10 pm Post subject: |
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| Spenceboy98 wrote: | | I tried that. It didn't work. It said that the variables I reset were unused. |
That's a warning that means you're not actually using the variable for anything anywhere. It sounds like you really need to read a C tutorial or two.
_________________
 
 
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Spenceboy98
Super-Expert
Joined: 06 Jan 2012
Posts: 855
Location: In the TARDIS
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| Posted: 22 Apr 2012 06:27:18 pm Post subject: |
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| I don't know how to tab it. This is so frustrating! |
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christop
Power User
Joined: 09 Mar 2011
Posts: 385
Location: Arizona, USA
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| Posted: 23 Apr 2012 12:47:08 pm Post subject: |
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| Spenceboy98 wrote: | | I don't know how to tab it. This is so frustrating! |
"Tabbing" your code means to indent it so that code at the same "level" is indented by the same amount. For example, the top-level code (eg, #includes and function definitions) should not be indented at all. See http://en.wikipedia.org/wiki/Indent_style for some simple indentation style "rules". There are a few popular different styles, but whichever you use, stick with it. Remember, source code should be readable by humans, and consistency helps.
Any decent text editor (which automatically excludes Notepad) makes it easy to indent your code. I personally use vim and occasionally gedit, but IIRC, you're stuck with Windows, so other people can suggest good text editors that will run (more natively) in Windows.
_________________
Christopher Williams |
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Ashbad
I am governor Jerry Brown
Joined: 01 Dec 2010
Posts: 2423
Location: There lived a certain man in Russia long ago
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| Posted: 23 Apr 2012 02:01:25 pm Post subject: |
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^ indeed, there is Vim for windows too, but I think that Notepad++ is a great Windows text editor. Some argue Programmers Notepad is a better substitute, but it's hard to go wrong with either one, in my opinion.
_________________
-Ashbad |
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Spenceboy98
Super-Expert
Joined: 06 Jan 2012
Posts: 855
Location: In the TARDIS
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| Posted: 24 Apr 2012 10:11:52 pm Post subject: |
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I just tried Kerms input code by itself, but it says,
Code:
main.c: In function 'getTextLine':
main.c:13:2: warning: implicit declaration of function 'RTC_GetTicks' [-Wimplici
t-function-declaration]
main.c:51:3: warning: implicit declaration of function 'PrintXY' [-Wimplicit-fun
ction-declaration]
main.c:58:4: warning: implicit declaration of function 'GetKeyWait_OS' [-Wimplic
it-function-declaration]
main.c:59:4: warning: implicit declaration of function 'Bdisp_EnableColor' [-Wim
plicit-function-declaration]
main.c:89:23: error: 'KEY_PRGM_DEL' undeclared (first use in this function)
main.c:89:23: note: each undeclared identifier is reported only once for each fu
nction it appears in
main.c:109:8: warning: implicit declaration of function '_g_strlen' [-Wimplicit-
function-declaration]
main.c: In function 'DrawCursor':
main.c:188:4: warning: implicit declaration of function 'Bdisp_PutDisp_DD' [-Wim
plicit-function-declaration]
make: *** [main.o] Error 1
What did I do wrong? |
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PierrotLL
Advanced Newbie
Joined: 29 Nov 2011
Posts: 72
Location: France
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| Posted: 25 Apr 2012 03:27:03 am Post subject: |
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The only error you have is " 'KEY_PRGM_DEL' undeclared " cause you haven't include the header which define KEY_PRGM_DEL. Search in the PrizmSDK-0.3/include directory, and include the header you need.
All "warning: implicit declaration of function" are also cause you haven't include the right headers.
If you say to a friend to call Bob without giving him Bob's number, your friend can't call him. It's exactly the same for a compiler.
_________________
My fx-9860G & Prizm games
My fx-9860G graphic library, MonochromeLib |
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