Changeset 44Tweet

Timestamp:

Dec 22, 2002, 11:36:42 PM (20 years ago)

Author:

Sam Hocevar

Message:

• Removed the dependency on <math.h>. We don't need no stinking sqrt!

Location:

ttyvaders/trunk/src

Files:

• Makefile.am (modified) (1 diff)
• common.h (modified) (2 diffs)
• math.c (added)
• weapons.c (modified) (3 diffs)

ttyvaders/trunk/src/Makefile.am

@@ -25 +25 @@
         explosions.c \
         main.c \
+        math.c \
         starfield.c \
         weapons.c \

ttyvaders/trunk/src/common.h

@@ -4 +4 @@
  *                 All Rights Reserved
  *
- *   $Id: common.h,v 1.8 2002/12/22 22:17:41 sam Exp $
+ *   $Id: common.h,v 1.9 2002/12/22 22:36:42 sam Exp $
  *
  *   This program is free software; you can redistribute it and/or modify
@@ -186 +186 @@
 void ceo_alert( void );
 
+int r00t( int a );
+

ttyvaders/trunk/src/weapons.c

@@ -4 +4 @@
  *                 All Rights Reserved
  *
- *   $Id: weapons.c,v 1.8 2002/12/22 22:17:41 sam Exp $
+ *   $Id: weapons.c,v 1.9 2002/12/22 22:36:42 sam Exp $
  *
  *   This program is free software; you can redistribute it and/or modify
@@ -22 +22 @@
 
 #include <stdlib.h>
-#include <math.h>
 
 #include "common.h"
@@ -173 +172 @@
                 /* Normalize and update speed */
                 wp->vx[i] = (7 * wp->vx[i]
-                              + (dx * 48) / sqrt(dx*dx+dy*dy) ) / 8;
+                              + (dx * 48) / r00t(dx*dx+dy*dy) ) / 8;
                 wp->vy[i] = (7 * wp->vy[i]
-                              + (dy * 24) / sqrt(dx*dx+dy*dy) ) / 8;
+                              + (dy * 24) / r00t(dx*dx+dy*dy) ) / 8;
 
                 break;