Mercurial > sdl-ios-xcode

annotate XCodeiPhoneOS/Demos/src/common.c @ 2468:cbcd2e990cfc gsoc2008_iphone

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
removed build folder from branch
author Holmes Futrell <hfutrell@umail.ucsb.edu>
date Mon, 18 Aug 2008 20:15:24 +0000
parents d3952f445f4d
children
rev   line source
2381
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
1 /*
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
2 * common.c
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
3 * written by Holmes Futrell
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
4 * use however you want
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
5 */
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
6
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
7 #include "common.h"
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
8 #include "SDL.h"
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
9 #include <stdlib.h>
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
10
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
11 /*
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
12 Produces a random int x, min <= x <= max
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
13 following a uniform distribution
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
14 */
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
15 int randomInt(int min, int max) {
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
16 return min + rand() % (max - min + 1);
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
17 }
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
18 /*
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
19 Produces a random float x, min <= x <= max
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
20 following a uniform distribution
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
21 */
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
22 float randomFloat(float min, float max) {
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
23 return rand() / (float)RAND_MAX * (max - min) + min;
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
24 }
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
25
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
26 void fatalError(const char *string) {
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
27 printf("%s: %s\n", string, SDL_GetError());
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
28 exit(1);
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
29 }