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annotate XCodeiPhoneOS/Demos/src/common.c @ 2381:d3952f445f4d gsoc2008_iphone

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Files used by all demos (random numbers, screen size, etc)
author Holmes Futrell <hfutrell@umail.ucsb.edu>
date Fri, 18 Jul 2008 20:51:25 +0000
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d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
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1 /*
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
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2 * common.c
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
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3 * written by Holmes Futrell
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
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4 * use however you want
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
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5 */
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6
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7 #include "common.h"
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Holmes Futrell <hfutrell@umail.ucsb.edu>
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8 #include "SDL.h"
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
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9 #include <stdlib.h>
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10
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
Holmes Futrell <hfutrell@umail.ucsb.edu>
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11 /*
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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>
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13 following a uniform distribution
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14 */
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15 int randomInt(int min, int max) {
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
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16 return min + rand() % (max - min + 1);
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17 }
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Holmes Futrell <hfutrell@umail.ucsb.edu>
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18 /*
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19 Produces a random float x, min <= x <= max
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
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20 following a uniform distribution
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21 */
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22 float randomFloat(float min, float max) {
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
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23 return rand() / (float)RAND_MAX * (max - min) + min;
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24 }
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25
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26 void fatalError(const char *string) {
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
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27 printf("%s: %s\n", string, SDL_GetError());
d3952f445f4d Files used by all demos (random numbers, screen size, etc)
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28 exit(1);
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29 }