* the beam now digs the tunnel.

* the starfield is now an array of stars.
  * fixed wall rendering (offset issues and disappearing left wall).
  * 32 seekers on fragbomb explosion, not 16.

TODO

@@ -8,11 +8,11 @@ Things to do
 
  * sprite library
 
- * mega ball
+ DONE 23 Dec 2002: mega ball
 
  * spiral weapon (vertical sine)
 
- * fragmentation bomb (merge with mega-ball?)
+ DONE 23 Dec 2002: fragmentation bomb (merge with mega-ball?)
 
  * stick aliens to tunnel
 
@@ -30,7 +30,7 @@ Things to do
 
  * promote precision for all coordinates except screen
 
- * tunnel sometimes doesn't get drawn on the left
+ DONE Dec 19 2002: tunnel sometimes doesn't get drawn on the left
 
  * write a generic drawing library with automatic clipping
 
@@ -38,3 +38,5 @@ Things to do
 
  * animate the ship
 
+ * the nuke should break the tunnel
+

src/collide.c

@@ -3,7 +3,7 @@
  *   Copyright (c) 2002 Sam Hocevar <sam@zoy.org>
  *                 All Rights Reserved
  *
- *   $Id: collide.c,v 1.7 2002/12/22 22:17:41 sam Exp $
+ *   $Id: collide.c,v 1.8 2002/12/23 09:28:37 sam Exp $
  *
  *   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
@@ -26,7 +26,7 @@
 
 void collide_weapons_tunnel( game *g, weapons *wp, tunnel *t, explosions *ex )
 {
-    int i, x, y;
+    int i, j, x, y;
 
     for( i = 0; i < WEAPONS; i++ )
     {
@@ -76,50 +76,57 @@ void collide_weapons_tunnel( game *g, weapons *wp, tunnel *t, explosions *ex )
             }
             break;
         case WEAPON_LASER:
-            if( x <= t->left[y+1]
-                 || x >= t->right[y+1] )
+            for( j = GET_MIN( 0, wp->vy[i] >> 4 ) ;
+                 j < GET_MAX( 0, wp->vy[i] >> 4 ) ;
+                 j++ )
             {
-                add_explosion( g, ex, x, y+1, 0, 1, EXPLOSION_SMALL );
-
-                if( x <= t->left[y+1] )
-                {
-                    t->left[y]--;
-                    t->left[y+1]-=2;
-                    t->left[y+2]--;
-                }
-                else
+                if( x <= t->left[y+j] || x >= t->right[y+j] )
                 {
-                    t->right[y]++;
-                    t->right[y+1]+=2;
-                    t->right[y+2]++;
-                }
+                    add_explosion( g, ex, x, y+j, 0, 1, EXPLOSION_SMALL );
+                    wp->type[i] = WEAPON_NONE;
 
-                wp->type[i] = WEAPON_NONE;
+                    if( x <= t->left[y+j] )
+                    {
+                        t->left[y+j-1]--;
+                        t->left[y+j] -= 2;
+                        t->left[y+j+1]--;
+                    }
+                    else
+                    {
+                        t->right[y+j-1]++;
+                        t->right[y+j] += 2;
+                        t->right[y+j+1]++;
+                    }
+                    break;
+                }
             }
-            else if( x <= t->left[y]
-                      || x >= t->right[y] )
+            break;
+        case WEAPON_BEAM:
+            if( wp->n[i] > 19 )
             {
-                add_explosion( g, ex, x, y, 0, 1, EXPLOSION_SMALL );
+                break;
+            }
 
-                if( x <= t->left[y] )
+            j = (29 - wp->n[i]) * (29 - wp->n[i]) / 8;
+            j = GET_MIN( y, j );
+
+            for( ; j > 0 ; j-- )
+            {
+                if( x - 2 <= t->left[y-j] )
                 {
-                    t->left[y-1]--;
-                    t->left[y]-=2;
-                    t->left[y+1]--;
+                    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);
                 }
-                else
+                else if( x + 3 >= t->right[y-j] )
                 {
-                    t->right[y-1]++;
-                    t->right[y]+=2;
-                    t->right[y+1]++;
+                    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);
                 }
-
-                wp->type[i] = WEAPON_NONE;
             }
             break;
+
         case WEAPON_NUKE:
-        case WEAPON_BEAM:
-            /* The nuke and the laser do not break the tunnel */
+            /* The nuke does not break the tunnel */
             break;
         }
     }
@@ -127,7 +134,7 @@ void collide_weapons_tunnel( game *g, weapons *wp, tunnel *t, explosions *ex )
 
 void collide_weapons_aliens( game *g, weapons *wp, aliens *al, explosions *ex )
 {
-    int i, j, x, y;
+    int i, j, k, x, y;
 
     for( i = 0; i < WEAPONS; i++ )
     {
@@ -165,6 +172,11 @@ void collide_weapons_aliens( game *g, weapons *wp, aliens *al, explosions *ex )
             break;
 
         case WEAPON_BEAM:
+            if( wp->n[i] > 19 )
+            {
+                break;
+            }
+
             r = (29 - wp->n[i]) * (29 - wp->n[i]) / 8;
 
             for( j = 0; j < ALIENS; j++ )
@@ -190,17 +202,17 @@ void collide_weapons_aliens( game *g, weapons *wp, aliens *al, explosions *ex )
                     continue;
                 }
 
-                if( x >= al->x[j] && x <= al->x[j] + 4
-                     && y >= al->y[j] && y <= al->y[j] + 2 )
+                for( k = GET_MIN( 0, wp->vy[i] >> 4 ) ;
+                     k < GET_MAX( 0, wp->vy[i] >> 4 ) ;
+                     k++ )
                 {
-                    al->life[j]--;
-                    ok = 1;
-                }
-                else if( x >= al->x[j] && x <= al->x[j] + 4
-                          && y+1 >= al->y[j] && y+1 <= al->y[j] + 2 )
-                {
-                    al->life[j]--;
-                    ok = 1;
+                    if( x >= al->x[j] && x <= al->x[j] + 4
+                         && y+k >= al->y[j] && y+k <= al->y[j] + 2 )
+                    {
+                        al->life[j]--;
+                        ok = 1;
+                        break;
+                    }
                 }
             }
 

src/common.h

@@ -3,7 +3,7 @@
  *   Copyright (c) 2002 Sam Hocevar <sam@zoy.org>
  *                 All Rights Reserved
  *
- *   $Id: common.h,v 1.9 2002/12/22 22:36:42 sam Exp $
+ *   $Id: common.h,v 1.10 2002/12/23 09:28:37 sam Exp $
  *
  *   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
@@ -21,10 +21,10 @@
  */
 
 #define STARS 50
-#define WEAPONS 100
+#define WEAPONS 200
 #define BONUS 30
 #define ALIENS 30
-#define EXPLOSIONS 100
+#define EXPLOSIONS 200
 
 #ifdef USE_SLANG
 #   include <slang.h>
@@ -43,6 +43,8 @@
 #define gfx_putcharTO(x,y,c) do{ gfx_goto(x,y); gfx_putchar(c); }while(0)
 
 #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))
 
 typedef struct
 {
@@ -52,11 +54,8 @@ typedef struct
 
 typedef struct
 {
-    int x[STARS];
-    int y[STARS];
-    int z[STARS];
-    char ch[STARS];
-    int c[STARS];
+    int x, y, z, c;
+    char ch;
 
 } starfield;
 
@@ -169,9 +168,10 @@ void draw_bonus( game *g, bonus *bo );
 void update_bonus( game *g, bonus *bo );
 void add_bonus( game *g, bonus *bo, int x, int y, int type );
 
-void init_starfield( game *g, starfield *s );
+starfield * create_starfield( game *g );
 void draw_starfield( game *g, starfield *s );
 void update_starfield( game *g, starfield *s );
+void free_starfield( game *g, starfield *s );
 
 tunnel * create_tunnel( game *g, int w, int h );
 void free_tunnel( tunnel *t );

src/main.c

@@ -3,7 +3,7 @@
  *   Copyright (c) 2002 Sam Hocevar <sam@zoy.org>
  *                 All Rights Reserved
  *
- *   $Id: main.c,v 1.8 2002/12/22 22:17:41 sam Exp $
+ *   $Id: main.c,v 1.9 2002/12/23 09:28:37 sam Exp $
  *
  *   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
@@ -61,7 +61,7 @@ static void start_game (game *g)
     int skip = 0;
     int purcompteur = 0;
 
-    g->sf = malloc(sizeof(starfield));
+    g->sf = create_starfield( g );
     g->wp = malloc(sizeof(weapons));
     g->ex = malloc(sizeof(explosions));
     g->bo = malloc(sizeof(bonus));
@@ -69,7 +69,6 @@ static void start_game (game *g)
     g->p = create_player( g );
     g->al = malloc(sizeof(aliens));
 
-    init_starfield( g, g->sf );
     init_weapons( g, g->wp );
     init_explosions( g, g->ex );
     init_aliens( g, g->al );
@@ -222,6 +221,8 @@ static void start_game (game *g)
         purcompteur++;
     }
 
+    free_starfield( g, g->sf );
+
 #if 0
     free_player( p );
     free_tunnel( g->t );

src/starfield.c

@@ -3,7 +3,7 @@
  *   Copyright (c) 2002 Sam Hocevar <sam@zoy.org>
  *                 All Rights Reserved
  *
- *   $Id: starfield.c,v 1.4 2002/12/22 18:44:12 sam Exp $
+ *   $Id: starfield.c,v 1.5 2002/12/23 09:28:37 sam Exp $
  *
  *   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
@@ -24,18 +24,23 @@
 
 #include "common.h"
 
-void init_starfield( game *g, starfield *s )
+starfield * create_starfield( game *g )
 {
     int i;
+    starfield *s;
+
+    s = malloc( STARS * sizeof(starfield) );
 
     for( i = 0; i < STARS; i++ )
     {
-        s->x[i] = rand() % g->w;
-        s->y[i] = rand() % g->h;
-        s->z[i] = 1 + rand() % 3;
-        s->ch[i] = (rand() % 2) ? '.' : '\'';
-        s->c[i] = 6 + rand() % 2;
+        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 ) ? '.' : '\'';
     }
+
+    return s;
 }
 
 void draw_starfield( game *g, starfield *s )
@@ -44,11 +49,11 @@ void draw_starfield( game *g, starfield *s )
 
     for( i = 0; i < STARS; i++ )
     {
-        if( s->x[i] >= 0 )
+        if( s[i].x >= 0 )
         {
-            gfx_color( s->c[i] );
-            gfx_goto( s->x[i], s->y[i] );
-            gfx_putchar( s->ch[i] );
+            gfx_color( s[i].c );
+            gfx_goto( s[i].x, s[i].y );
+            gfx_putchar( s[i].ch );
         }
     }
 }
@@ -59,22 +64,27 @@ void update_starfield( game *g, starfield *s )
 
     for( i = 0; i < STARS; i++ )
     {
-        if( s->x[i] < 0 )
+        if( s[i].x < 0 )
         {
-            s->x[i] = rand() % g->w;
-            s->y[i] = 0;
-            s->z[i] = 1 + rand() % 2;
-            s->ch[i] = (rand() % 2) ? '.' : '\'';
-            s->c[i] = 6 + rand() % 2;
+            s[i].x = GET_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 ) ? '.' : '\'';
         }
-        else if( s->y[i] < g->h-1 )
+        else if( s[i].y < g->h-1 )
         {
-            s->y[i] += s->z[i];
+            s[i].y += s[i].z;
         }
         else
         {
-            s->x[i] = -1;
+            s[i].x = -1;
         }
     }
 }
 
+void free_starfield( game *g, starfield *s )
+{
+    free( s );
+}
+

src/tunnel.c

@@ -3,7 +3,7 @@
  *   Copyright (c) 2002 Sam Hocevar <sam@zoy.org>
  *                 All Rights Reserved
  *
- *   $Id: tunnel.c,v 1.4 2002/12/22 18:44:12 sam Exp $
+ *   $Id: tunnel.c,v 1.5 2002/12/23 09:28:37 sam Exp $
  *
  *   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
@@ -24,7 +24,7 @@
 
 #include "common.h"
 
-static void draw_wall( game *g, int *wall );
+static void draw_wall( game *g, int *wall, int delta );
 
 /* Init tunnel */
 tunnel * create_tunnel( game *g, int w, int h )
@@ -39,12 +39,12 @@ tunnel * create_tunnel( game *g, int w, int h )
 
     if( t->w >= g->w )
     {
-        t->left[0] = -1;
-        t->right[0] = g->w;
+        t->left[0] = -10;
+        t->right[0] = g->w + 10;
         for( i = 0; i < g->h; i++ )
         {
-            t->left[i] = -1;
-            t->right[i] = g->w;
+            t->left[i] = -10;
+            t->right[i] = g->w + 10;
         }
     }
     else
@@ -71,13 +71,13 @@ void free_tunnel( tunnel *t )
 void draw_tunnel( game *g, tunnel *t )
 {
     /* Print tunnel */
-    draw_wall( g, t->left );
-    draw_wall( g, t->right );
+    draw_wall( g, t->left, -2 );
+    draw_wall( g, t->right, -1 );
 }
 
 void update_tunnel( game *g, tunnel *t )
 {
-    static int const delta[] = { -2, -1, 1, 2 };
+    static int const delta[] = { -3, -2, -1, 1, 2, 3 };
     int i,j,k;
 
     /* Slide tunnel one block vertically */
@@ -88,8 +88,8 @@ void update_tunnel( game *g, tunnel *t )
     }
 
     /* Generate new values */
-    i = delta[GET_RAND(0,4)];
-    j = delta[GET_RAND(0,4)];
+    i = delta[GET_RAND(0,6)];
+    j = delta[GET_RAND(0,6)];
 
     /* Check in which direction we need to alter tunnel */
     if( t->right[1] - t->left[1] < t->w )
@@ -121,8 +121,8 @@ void update_tunnel( game *g, tunnel *t )
     }
     else
     {
-        t->left[0] = -1;
-        t->right[0] = g->w;
+        t->left[0] = -10;
+        t->right[0] = g->w + 10;
     }
 
     if( t->w > g->w )
@@ -151,7 +151,7 @@ void update_tunnel( game *g, tunnel *t )
     }
 }
 
-static void draw_wall( game *g, int *wall )
+static void draw_wall( game *g, int *wall, int delta )
 {
     int i;
 
@@ -161,7 +161,7 @@ static void draw_wall( game *g, int *wall )
     {
         char *str;
 
-        if( wall[i] < 0 || wall[i] >= g->w )
+        if( wall[i] < -10 || wall[i] >= g->w + 10 )
         {
             continue;
         }
@@ -177,11 +177,11 @@ static void draw_wall( game *g, int *wall )
 
         if( wall[i] == wall[i+1] + 2 )
         {
-            gfx_goto( wall[i] - 1, i );
+            gfx_goto( wall[i] - 1 + delta, i );
             gfx_putchar( '_' );
         }
 
-        gfx_goto( wall[i], i );
+        gfx_goto( wall[i] + delta, i );
         gfx_putstr( str );
         if( wall[i] == wall[i+1] - 2 ) gfx_putchar( '_' );
     }

src/weapons.c

@@ -3,7 +3,7 @@
  *   Copyright (c) 2002 Sam Hocevar <sam@zoy.org>
  *                 All Rights Reserved
  *
- *   $Id: weapons.c,v 1.11 2002/12/22 23:39:15 sam Exp $
+ *   $Id: weapons.c,v 1.12 2002/12/23 09:28:37 sam Exp $
  *
  *   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
@@ -198,14 +198,15 @@ void update_weapons( game *g, weapons *wp )
                     int coords[] =
                     {
                         32,  0,   -32,  0,    0,  16,     0, -16,
-                        24, 12,   -24, 12,   24, -12,   -24, -12,
                         28,  8,   -28,  8,   28,  -8,   -28,  -8,
+                        24, 12,   -24, 12,   24, -12,   -24, -12,
                         16, 14,   -16, 14,   16, -14,   -16, -14
                     };
 
                     for( j = 0 ; j < sizeof(coords) / sizeof(int) ; j += 2 )
                     {
-                        add_weapon( g, g->wp, wp->x[i] + coords[j], wp->y[i] + coords[j+1], coords[j], coords[j+1], WEAPON_SEEKER );
+                        add_weapon( g, g->wp, wp->x[i] + coords[j], wp->y[i] + coords[j+1] / 2, coords[j], coords[j+1], WEAPON_SEEKER );
+                        add_weapon( g, g->wp, wp->x[i] + coords[j] / 2, wp->y[i] + coords[j+1], coords[j], coords[j+1], WEAPON_SEEKER );
                     }
 
                     wp->type[i] = WEAPON_NONE;