* libee/io.c:

+ Moved ee_get_key() here.
  * libee/math.c:
    + Moved r00t() here and renamed it to ee_sqrt().
    + Moved GET_RAND() here and renamed it to ee_rand().
  * src/math.c:
    + Removed this deprecated file.

libee/Makefile.am

@@ -15,6 +15,6 @@ CPPFLAGS_ncurses = -DUSE_NCURSES
 endif
 
 lib_LIBRARIES = libee.a
-libee_a_SOURCES = ee.c ee.h
+libee_a_SOURCES = ee.c ee.h io.c math.c
 libee_a_CPPFLAGS = $(CPPFLAGS_slang) $(CPPFLAGS_ncurses)
 

libee/ee.c

@@ -204,25 +204,3 @@ void ee_end(void)
 #endif
 }
 
-char ee_get_key(void)
-{
-#ifdef USE_SLANG
-    if(SLang_input_pending(0))
-    {
-        return SLang_getkey();
-    }
-#elif USE_NCURSES
-    char key = getch();
-
-    if(key != ERR)
-    {
-        return key;
-    }
-#else
-    return 0;
-
-#endif
-
-    return 0;
-}
-

libee/ee.h

@@ -72,3 +72,6 @@ void ee_end(void);
 
 char ee_get_key(void);
 
+int ee_rand(int, int);
+int ee_sqrt(int);
+

libee/io.c

@@ -0,0 +1,48 @@
+/*
+ *   libee         ASCII-Art library
+ *   Copyright (c) 2002, 2003 Sam Hocevar <sam@zoy.org>
+ *                 All Rights Reserved
+ *
+ *   $Id$
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "config.h"
+
+#include "ee.h"
+
+char ee_get_key(void)
+{
+#ifdef USE_SLANG
+    if(SLang_input_pending(0))
+    {
+        return SLang_getkey();
+    }
+#elif USE_NCURSES
+    char key = getch();
+
+    if(key != ERR)
+    {
+        return key;
+    }
+#else
+    return 0;
+
+#endif
+
+    return 0;
+}
+

src/math.c → libee/math.c

@@ -1,6 +1,6 @@
 /*
- *   ttyvaders     Textmode shoot'em up
- *   Copyright (c) 2002 Sam Hocevar <sam@zoy.org>
+ *   libee         ASCII-Art library
+ *   Copyright (c) 2002, 2003 Sam Hocevar <sam@zoy.org>
  *                 All Rights Reserved
  *
  *   $Id$
@@ -20,17 +20,28 @@
  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#include "common.h"
+#include "config.h"
 
-int r00t(int a)
+#include <stdlib.h>
+
+#include "ee.h"
+
+int ee_rand(int min, int max)
+{
+    return min + (int)((1.0*(max-min)) * rand() / (RAND_MAX+1.0));
+}
+
+int ee_sqrt(int a)
 {
-    int x = a > 100000 ? 1000 : a > 1000 ? 100 : a > 10 ? 10 : 1;
+    int x;
 
     if(a <= 0)
     {
         return 0;
     }
 
+    x = a > 100000 ? 1000 : a > 1000 ? 100 : a > 10 ? 10 : 1;
+
     /* Newton's method. Three iterations would be more than enough. */
     x = (x * x + a) / x / 2;
     x = (x * x + a) / x / 2;

src/Makefile.am

@@ -27,7 +27,6 @@ ttyvaders_SOURCES = \
 	common.h \
 	explosions.c \
 	main.c \
-	math.c \
 	overlay.c \
 	player.c \
 	starfield.c \

src/aliens.c

@@ -72,7 +72,7 @@ void update_aliens(game *g, aliens *al)
         {
             add_explosion(g, g->ex, al->x[i], al->y[i], 0, 0, EXPLOSION_MEDIUM);
             al->type[i] = ALIEN_NONE;
-            add_bonus(g, g->bo, al->x[i], al->y[i], GET_RAND(0,5) ? BONUS_GREEN : BONUS_LIFE);
+            add_bonus(g, g->bo, al->x[i], al->y[i], ee_rand(0,5) ? BONUS_GREEN : BONUS_LIFE);
         }
 
         /* Update coordinates */

src/collide.c

@@ -125,12 +125,12 @@ void collide_weapons_tunnel(game *g, weapons *wp, tunnel *t, explosions *ex)
                 if(x - 2 <= t->left[y-j])
                 {
                     add_explosion(g, ex, GET_MIN(t->left[y-j], x+3), y-j, 0, 1, EXPLOSION_SMALL);
-                    t->left[y-j] -= GET_RAND(0,3);
+                    t->left[y-j] -= ee_rand(0,3);
                 }
                 else if(x + 3 >= t->right[y-j])
                 {
                     add_explosion(g, ex, GET_MAX(t->right[y-j], x-2), y-j, 0, 1, EXPLOSION_SMALL);
-                    t->right[y-j] += GET_RAND(0,3);
+                    t->right[y-j] += ee_rand(0,3);
                 }
             }
             break;

src/common.h

@@ -47,7 +47,6 @@
 /*
  * Useful macros
  */
-#define GET_RAND(p,q) ((p)+(int)((1.0*((q)-(p)))*rand()/(RAND_MAX+1.0)))
 #define GET_MAX(a,b) ((a)>(b)?(a):(b))
 #define GET_MIN(a,b) ((a)<(b)?(a):(b))
 
@@ -186,11 +185,6 @@ void add_explosion(game *, explosions *, int, int, int, int, int);
 void draw_explosions(game *, explosions *);
 void update_explosions(game *, explosions *);
 
-/*
- * From math.c
- */
-int r00t(int);
-
 /*
  * From overlay.c
  */

src/explosions.c

@@ -73,7 +73,7 @@ void draw_explosions(game *g, explosions *ex)
 #if 0
         ee_color(GREEN);
         ee_goto(ex->x[i] + 3, ex->y[i]);
-        switch(GET_RAND(0,3))
+        switch(ee_rand(0,3))
         {
         case 0:
             ee_putchar('p');

src/main.c

@@ -182,11 +182,11 @@ static void start_game (game *g)
             skip = 0;
 
             /* XXX: to be removed */
-            if(GET_RAND(0,10) == 0)
+            if(ee_rand(0,10) == 0)
             {
                 int list[3] = { ALIEN_FOO, ALIEN_BAR, ALIEN_BAZ };
 
-                add_alien(g, g->al, 0, rand() % g->h / 2, list[GET_RAND(0,3)]);
+                add_alien(g, g->al, 0, rand() % g->h / 2, list[ee_rand(0,3)]);
             }
 
             /* Update game rules */

src/starfield.c

@@ -33,11 +33,11 @@ starfield * create_starfield(game *g)
 
     for(i = 0; i < STARS; i++)
     {
-        s[i].x = GET_RAND(0, g->w);
-        s[i].y = GET_RAND(0, g->h);
-        s[i].z = GET_RAND(1, 4);
-        s[i].c = GET_RAND(6, 8);
-        s[i].ch = GET_RAND(0, 2) ? '.' : '\'';
+        s[i].x = ee_rand(0, g->w);
+        s[i].y = ee_rand(0, g->h);
+        s[i].z = ee_rand(1, 4);
+        s[i].c = ee_rand(6, 8);
+        s[i].ch = ee_rand(0, 2) ? '.' : '\'';
     }
 
     return s;
@@ -66,11 +66,11 @@ void update_starfield(game *g, starfield *s)
     {
         if(s[i].x < 0)
         {
-            s[i].x = GET_RAND(0, g->w);
+            s[i].x = ee_rand(0, g->w);
             s[i].y = 0;
-            s[i].z = GET_RAND(1, 3);
-            s[i].c = GET_RAND(6, 8);
-            s[i].ch = GET_RAND(0, 2) ? '.' : '\'';
+            s[i].z = ee_rand(1, 3);
+            s[i].c = ee_rand(6, 8);
+            s[i].ch = ee_rand(0, 2) ? '.' : '\'';
         }
         else if(s[i].y < g->h-1)
         {

src/tunnel.c

@@ -169,8 +169,8 @@ void update_tunnel(game *g, tunnel *t)
     }
 
     /* Generate new values */
-    i = delta[GET_RAND(0,6)];
-    j = delta[GET_RAND(0,6)];
+    i = delta[ee_rand(0,6)];
+    j = delta[ee_rand(0,6)];
 
     /* Check in which direction we need to alter tunnel */
     if(t->right[1] - t->left[1] < t->w)

src/weapons.c

@@ -172,7 +172,7 @@ void update_weapons(game *g, weapons *wp)
                 /* Normalize direction */
                 if(dx | dy)
                 {
-                    int norm = r00t(dx * dx + 4 * dy * dy);
+                    int norm = ee_sqrt(dx * dx + 4 * dy * dy);
                     dx = dx * 32 / norm;
                     dy = dy * 32 / norm;
                 }
@@ -184,7 +184,7 @@ void update_weapons(game *g, weapons *wp)
                 /* Normalize speed */
                 if(dx | dy)
                 {
-                    int norm = r00t(dx * dx + 4 * dy * dy);
+                    int norm = ee_sqrt(dx * dx + 4 * dy * dy);
                     wp->vx[i] = dx * 32 / norm;
                     wp->vy[i] = dy * 32 / norm;
                 }