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Friction doesn't make sense any more, dropped that.
[vor.git] / main.c
diff --git a/main.c b/main.c
index ecdc4e6..92927b5 100644 (file)
--- a/main.c
+++ b/main.c
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
 
+#include <argp.h>
+#include <math.h>
+#include <SDL/SDL.h>
+#include <SDL/SDL_image.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "SFont.h"
+
 #ifdef DEBUG
 #include "debug.h"
 #endif
 
+#include "args.h"
+#include "common.h"
 #include "config.h"
 #include "file.h"
 #include "globals.h"
 #include "shape.h"
 #include "sound.h"
 
-#include <math.h>
-#include <SDL/SDL.h>
-#include <SDL/SDL_image.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "SFont.h"
-
 // ************************************* VARS
 // SDL_Surface global variables
 SDL_Surface 
@@ -55,6 +57,7 @@ SDL_Surface
        *surf_life,     // Indicator of number of ships remaining
        *surf_rock[NROCKS],     // THE ROCKS
        *surf_font_big; // The big font
+       
 
 SFont_Font *g_font;
 
@@ -67,19 +70,27 @@ struct spacedot sdot[MAXSPACEDOTS];
 char topline[1024];
 char *initerror = "";
 
+
+
 struct shape shipshape;
-float shipx = 320.0, shipy = 240.0;    // X position, 0..XSIZE
-float shipdx,shipdy;   // Change in X position per tick.
-float screendx = 7.5, screendy = 0.0;
+float shipx = XSIZE/2, shipy = YSIZE/2;        // X position, 0..XSIZE
+float shipdx = SCREENDXMIN, shipdy = 0.0;      // Change in X position per tick.
+float screendx = SCREENDXMIN, screendy = 0.0;
 float xscroll, yscroll;
-float gamerate;  // this controls the speed of everything that moves.
+float back_dist;
+
+// all movement is based on t_frame.
+float t_frame;  // length of this frame (in ticks = 1/20th second)
+float s_frame;  // length of this frame (seconds)
+int ms_frame;   // length of this frame (milliseconds)
+int ms_end;     // end of this frame (milliseconds)
+
+float bangx, bangy, bangdx, bangdy;
 
-int nships,score,initticks,ticks_since_last, last_ticks;
+int nships,score;
 int gameover;
-int maneuver = 0;
-int sound_flag, music_flag;
-int tail_plume; // display big engine at the back?
-int friction;  // should there be friction?
+int jets = 0;
+
 float fadetimer = 0, faderate;
 
 int pausedown = 0, paused = 0;
@@ -101,7 +112,7 @@ float state_timeout = 600.0;
 #define NSEQUENCE 2
 char *sequence[] = {
        "Press SPACE to start",
-       "http://qualdan.com/vor/"
+       "http://herkamire.com/jason/vor"
 };
 
 int bangdotlife, nbangdots;
@@ -111,6 +122,8 @@ char *data_dir;
 extern char *optarg;
 extern int optind, opterr, optopt;
 
+#define TO_TICKS(seconds) ((seconds)*20*opt_gamespeed)
+
 // ************************************* FUNCS
 
 float
@@ -203,6 +216,7 @@ draw_bang_dots(SDL_Surface *s) {
        rawpixel = (Uint16 *) s->pixels;
 
        first_i = -1;
+       last_i = 0;
 
        for(i = bd1; (bd1 <= bd2)?(i<bd2):(i >= bd1 && i < bd2); last_i = ++i) {
 
@@ -219,8 +233,8 @@ draw_bang_dots(SDL_Surface *s) {
                        //last_i = i + 1;
                        rawpixel[(int)(s->pitch/2*(int)(bdot[i].y)) + (int)(bdot[i].x)] = bdot[i].c ? bdot[i].c : heatcolor[(int)(bdot[i].life*3)];
                        bdot[i].life -= bdot[i].decay;
-                       bdot[i].x += bdot[i].dx*gamerate - xscroll;
-                       bdot[i].y += bdot[i].dy*gamerate - yscroll;
+                       bdot[i].x += bdot[i].dx*t_frame - xscroll;
+                       bdot[i].y += bdot[i].dy*t_frame - yscroll;
 
                        if(bdot[i].life<0)
                        bdot[i].active = 0;
@@ -250,8 +264,8 @@ draw_space_dots(SDL_Surface *s) {
                        sdot[i].y = 0;
                }
                rawpixel[(int)(s->pitch/2*(int)sdot[i].y) + (int)(sdot[i].x)] = sdot[i].color;
-               sdot[i].x -= xscroll / (1 + sdot[i].z);
-               sdot[i].y -= yscroll / (1 + sdot[i].z);
+               sdot[i].x -= xscroll / (1.3 + sdot[i].z);
+               sdot[i].y -= yscroll / (1.3 + sdot[i].z);
                if(sdot[i].y >= XSIZE) sdot[i].x -= XSIZE;
                else if(sdot[i].x < 0) sdot[i].x = XSIZE-1;
                if(sdot[i].y > YSIZE) sdot[i].y -= YSIZE;
@@ -267,9 +281,9 @@ draw_engine_dots(SDL_Surface *s) {
 
        for(i = 0; i<MAXENGINEDOTS; i++) {
                if(edot[i].active) {
-                       edot[i].x += edot[i].dx*gamerate - xscroll;
-                       edot[i].y += edot[i].dy*gamerate - yscroll;
-                       if((edot[i].life -= gamerate*3)<0 || edot[i].y<0 || edot[i].y>YSIZE) {
+                       edot[i].x += edot[i].dx*t_frame - xscroll;
+                       edot[i].y += edot[i].dy*t_frame - yscroll;
+                       if((edot[i].life -= t_frame*3)<0 || edot[i].y<0 || edot[i].y>YSIZE) {
                                edot[i].active = 0;
                        } else if(edot[i].x<0 || edot[i].x>XSIZE) {
                                edot[i].active = 0;
@@ -284,84 +298,36 @@ draw_engine_dots(SDL_Surface *s) {
 }
 
 void
-create_engine_dots(int newdots) {
-       int i;
-       double theta,r,dx,dy;
-
-       if(!tail_plume) return;
-
-       if(state == GAMEPLAY) {
-               for(i = 0; i<newdots*gamerate; i++) {
-                       if(dotptr->active == 0) {
-                               theta = rnd()*M_PI*2;
-                               r = rnd();
-                               dx = cos(theta)*r;
-                               dy = sin(theta)*r;
-
-                               dotptr->active = 1;
-                               dotptr->x = shipx + surf_ship->w/2-14;
-                               dotptr->y = shipy + surf_ship->h/2 + (rnd()-0.5)*5-1;
-                               dotptr->dx = 10*(dx-1.5) + shipdx;
-                               dotptr->dy = 1*dy + shipdy;
-                               dotptr->life = 45 + rnd(1)*5;
-
-                               dotptr++;
-                               if(dotptr-edot >= MAXENGINEDOTS) {
-                                       dotptr = edot;
-                               }
-                       }
-               }
-       }
-}
-
-void
-create_engine_dots2(int newdots, int m) {
+new_engine_dots(int n, int dir) {
        int i;
-       double theta, theta2, dx, dy, adx, ady;
+       float a, r;  // angle, random length
+       float dx, dy;
+       float hx, hy; // half ship width/height.
+       static const int s[4] = { 2, 1, 0, 1 };
 
-       // Don't create fresh engine dots when
-       // the game is not being played and a demo is not beng shown
-       if(state != GAMEPLAY) return;
+       hx = surf_ship->w / 2;
+       hy = surf_ship->h / 2;
 
-       for(i = 0; i<newdots; i++) {
+       for(i = 0; i<n; i++) {
                if(dotptr->active == 0) {
-                       theta = rnd()*M_PI*2;
-                       theta2 = rnd()*M_PI*2;
-
-                       dx = cos(theta) * fabs(cos(theta2));
-                       dy = sin(theta) * fabs(cos(theta2));
-                       adx = fabs(dx);
-                       ady = fabs(dy);
-
+                       a = rnd()*M_PI + (dir-1)*M_PI_2;
+                       r = sin(rnd()*M_PI);
+                       dx = r * cos(a);
+                       dy = r * -sin(a);  // screen y is "backwards".
 
                        dotptr->active = 1;
-                       dotptr->x = shipx + surf_ship->w/2 + (rnd()-0.5)*3;
-                       dotptr->y = shipy + surf_ship->h/2 + (rnd()-0.5)*3;
-
-                       switch(m) {
-                               case 0:
-                                       dotptr->x -= 14;
-                                       dotptr->dx = -20*adx + shipdx;
-                                       dotptr->dy = 2*dy + shipdy;
-                                       dotptr->life = 60 * adx;
-                               break;
-                               case 1:
-                                       dotptr->dx = 2*dx + shipdx;
-                                       dotptr->dy = -20*ady + shipdy;
-                                       dotptr->life = 60 * ady;
-                               break;
-                               case 2:
-                                       dotptr->x += 14;
-                                       dotptr->dx = 20*adx + shipdx;
-                                       dotptr->dy = 2*dy + shipdy;
-                                       dotptr->life = 60 * adx;
-                               break;
-                               case 3:
-                                       dotptr->dx = 2*dx + shipdx;
-                                       dotptr->dy = 20*ady + shipdy;
-                                       dotptr->life = 60 * ady;
-                               break;
+                       dotptr->x = shipx + s[dir]*hx + (rnd()-0.5)*3;
+                       dotptr->y = shipy + s[(dir+1)&3]*hy + (rnd()-0.5)*3;
+                       if(dir&1) {
+                               dotptr->dx = shipdx + 2*dx;
+                               dotptr->dy = shipdy + 20*dy;
+                               dotptr->life = 60 * fabs(dy);
+                       } else {
+                               dotptr->dx = shipdx + 20*dx;
+                               dotptr->dy = shipdy + 2*dy;
+                               dotptr->life = 60 * fabs(dx);
                        }
+
                        dotptr++;
                        if(dotptr-edot >= MAXENGINEDOTS) {
                                dotptr = edot;
@@ -374,13 +340,10 @@ void
 drawdots(SDL_Surface *s) {
        int m;
 
-       // Create more engine dots comin' out da back
-       if(!gameover) create_engine_dots(200);
-
        // Create engine dots out the side we're moving from
        for(m = 0; m<4; m++) {
-               if(maneuver & 1<<m) { // 'maneuver' is a bit field
-                       create_engine_dots2(80,m);
+               if(jets & 1<<m) { // 'jets' is a bit field
+                       new_engine_dots(80,m);
                }
        }
 
@@ -392,7 +355,7 @@ drawdots(SDL_Surface *s) {
 }
 
 int
-init(int fullscreen) {
+init(void) {
 
        int i;
        SDL_Surface *temp;
@@ -402,16 +365,16 @@ init(int fullscreen) {
        if(!find_files()) exit(1);
        read_high_score_table();
 
-       if(sound_flag) {
+       if(opt_sound) {
                // Initialize SDL with audio and video
                if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) != 0) {
-                       sound_flag = 0;
+                       opt_sound = 0;
                        printf ("Can't open sound, starting without it\n");
                        atexit(SDL_Quit);
                } else {
                        atexit(SDL_Quit);
                        atexit(SDL_CloseAudio);
-                       sound_flag = init_sound();
+                       opt_sound = init_sound();
                }
        } else {
                // Initialize with video only
@@ -423,7 +386,7 @@ init(int fullscreen) {
 
        // Attempt to get the required video size
        flag = SDL_DOUBLEBUF | SDL_HWSURFACE;
-       if(fullscreen) flag |= SDL_FULLSCREEN;
+       if(opt_fullscreen) flag |= SDL_FULLSCREEN;
        surf_screen = SDL_SetVideoMode(XSIZE,YSIZE,16,flag);
 
        // Set the title bar text
@@ -483,18 +446,13 @@ init(int fullscreen) {
 int
 draw() {
        int i;
-       SDL_Rect src,dest;
+       SDL_Rect dest;
        int bang, x;
        char *text;
        float fadegame,fadeover;
 
        bang = 0;
 
-       src.x = 0;
-       src.y = 0;
-       dest.x = 0;
-       dest.y = 0;
-
        // Draw a fully black background
        SDL_FillRect(surf_screen,NULL,0);
 
@@ -503,13 +461,9 @@ draw() {
 
        // Draw ship
        if(!gameover && state == GAMEPLAY ) {
-               src.w = surf_ship->w;
-               src.h = surf_ship->h;
-               dest.w = src.w;
-               dest.h = src.h;
-               dest.x = (int)shipx;
-               dest.y = (int)shipy;
-               SDL_BlitSurface(surf_ship,&src,surf_screen,&dest);
+               dest.x = shipx;
+               dest.y = shipy;
+               SDL_BlitSurface(surf_ship,NULL,surf_screen,&dest);
        }
 
        draw_rocks();
@@ -517,13 +471,9 @@ draw() {
        // Draw the life indicators.
        if(state == GAMEPLAY || state == DEAD_PAUSE || state == GAME_OVER)
        for(i = 0; i<nships-1; i++) {
-               src.w = surf_life->w;
-               src.h = surf_life->h;
-               dest.w = src.w;
-               dest.h = src.h;
-               dest.x = (i + 1)*(src.w + 10);
+               dest.x = (i + 1)*(surf_life->w + 10);
                dest.y = 20;
-               SDL_BlitSurface(surf_life, &src, surf_screen, &dest);
+               SDL_BlitSurface(surf_life, NULL, surf_screen, &dest);
        }
 
        // Draw the score
@@ -547,53 +497,33 @@ draw() {
                                fadeover = 1.0;
                        }
 
-                       src.w = surf_b_game->w;
-                       src.h = surf_b_game->h;
-                       dest.w = src.w;
-                       dest.h = src.h;
-                       dest.x = (XSIZE-src.w)/2;
-                       dest.y = (YSIZE-src.h)/2-40;
-                       SDL_SetAlpha(surf_b_game, SDL_SRCALPHA, (int)(fadegame*(200 + 55*cos(fadetimer += gamerate/1.0))));
-                       SDL_BlitSurface(surf_b_game,&src,surf_screen,&dest);
-
-                       src.w = surf_b_over->w;
-                       src.h = surf_b_over->h;
-                       dest.w = src.w;
-                       dest.h = src.h;
-                       dest.x = (XSIZE-src.w)/2;
-                       dest.y = (YSIZE-src.h)/2 + 40;
+                       dest.x = (XSIZE-surf_b_game->w)/2;
+                       dest.y = (YSIZE-surf_b_game->h)/2-40;
+                       SDL_SetAlpha(surf_b_game, SDL_SRCALPHA, (int)(fadegame*(200 + 55*cos(fadetimer += t_frame/1.0))));
+                       SDL_BlitSurface(surf_b_game,NULL,surf_screen,&dest);
+
+                       dest.x = (XSIZE-surf_b_over->w)/2;
+                       dest.y = (YSIZE-surf_b_over->h)/2 + 40;
                        SDL_SetAlpha(surf_b_over, SDL_SRCALPHA, (int)(fadeover*(200 + 55*sin(fadetimer))));
-                       SDL_BlitSurface(surf_b_over,&src,surf_screen,&dest);
+                       SDL_BlitSurface(surf_b_over,NULL,surf_screen,&dest);
                break;
 
                case TITLE_PAGE:
 
-                       src.w = surf_b_variations->w;
-                       src.h = surf_b_variations->h;
-                       dest.w = src.w;
-                       dest.h = src.h;
-                       dest.x = (XSIZE-src.w)/2 + cos(fadetimer/6.5)*10;
-                       dest.y = (YSIZE/2-src.h)/2 + sin(fadetimer/5.0)*10;
-                       SDL_SetAlpha(surf_b_variations, SDL_SRCALPHA, (int)(200 + 55*sin(fadetimer += gamerate/2.0)));
-                       SDL_BlitSurface(surf_b_variations,&src,surf_screen,&dest);
-
-                       src.w = surf_b_on->w;
-                       src.h = surf_b_on->h;
-                       dest.w = src.w;
-                       dest.h = src.h;
-                       dest.x = (XSIZE-src.w)/2 + cos((fadetimer + 1.0)/6.5)*10;
-                       dest.y = (YSIZE/2-src.h)/2 + surf_b_variations->h + 20 + sin((fadetimer + 1.0)/5.0)*10;
+                       dest.x = (XSIZE-surf_b_variations->w)/2 + cos(fadetimer/6.5)*10;
+                       dest.y = (YSIZE/2-surf_b_variations->h)/2 + sin(fadetimer/5.0)*10;
+                       SDL_SetAlpha(surf_b_variations, SDL_SRCALPHA, (int)(200 + 55*sin(fadetimer += t_frame/2.0)));
+                       SDL_BlitSurface(surf_b_variations,NULL,surf_screen,&dest);
+
+                       dest.x = (XSIZE-surf_b_on->w)/2 + cos((fadetimer + 1.0)/6.5)*10;
+                       dest.y = (YSIZE/2-surf_b_on->h)/2 + surf_b_variations->h + 20 + sin((fadetimer + 1.0)/5.0)*10;
                        SDL_SetAlpha(surf_b_on, SDL_SRCALPHA, (int)(200 + 55*sin(fadetimer-1.0)));
-                       SDL_BlitSurface(surf_b_on,&src,surf_screen,&dest);
-
-                       src.w = surf_b_rockdodger->w;
-                       src.h = surf_b_rockdodger->h;
-                       dest.w = src.w;
-                       dest.h = src.h;
-                       dest.x = (XSIZE-src.w)/2 + cos((fadetimer + 2.0)/6.5)*10;
-                       dest.y = (YSIZE/2-src.h)/2 + surf_b_variations->h + surf_b_on->h + 40 + sin((fadetimer + 2.0)/5)*10;
+                       SDL_BlitSurface(surf_b_on,NULL,surf_screen,&dest);
+
+                       dest.x = (XSIZE-surf_b_rockdodger->w)/2 + cos((fadetimer + 2.0)/6.5)*10;
+                       dest.y = (YSIZE/2-surf_b_rockdodger->h)/2 + surf_b_variations->h + surf_b_on->h + 40 + sin((fadetimer + 2.0)/5)*10;
                        SDL_SetAlpha(surf_b_rockdodger, SDL_SRCALPHA, (int)(200 + 55*sin(fadetimer-2.0)));
-                       SDL_BlitSurface(surf_b_rockdodger,&src,surf_screen,&dest);
+                       SDL_BlitSurface(surf_b_rockdodger,NULL,surf_screen,&dest);
 
                        text = "Version " VERSION;
                        x = (XSIZE-SFont_TextWidth(g_font,text))/2 + sin(fadetimer/4.5)*10;
@@ -633,17 +563,18 @@ draw() {
                bang = hit_rocks(shipx, shipy, &shipshape);
        }
 
-       ticks_since_last = SDL_GetTicks()-last_ticks;
-       last_ticks = SDL_GetTicks();
-       if(ticks_since_last>200 || ticks_since_last<0) {
-               gamerate = 0;
-       }
-       else {
-               gamerate = GAMESPEED*ticks_since_last/50.0;
-               if(state == GAMEPLAY) {
-                       score += ticks_since_last;
-               }
+       ms_frame = SDL_GetTicks() - ms_end;
+       ms_end += ms_frame;
+       if(ms_frame>200 || ms_frame<0) {
+               // We won't run at all below 5 frames per second.
+               // This also happens if we were paused, grr.
+               s_frame = 0;
+               ms_frame = 0;
+       } else {
+               s_frame = opt_gamespeed * ms_frame / 1000;
+               if(state == GAMEPLAY) score += ms_frame;
        }
+       t_frame = s_frame * 20;
 
        // Update the surface
        SDL_Flip(surf_screen);
@@ -662,7 +593,7 @@ gameloop() {
                if(!paused) {
                        // Count down the game loop timer, and change state when it gets to zero or less;
 
-                       if((state_timeout -= gamerate*3) < 0) {
+                       if((state_timeout -= t_frame*3) < 0) {
                                switch(state) {
                                        case DEAD_PAUSE:
                                                // Create a new ship and start all over again
@@ -670,14 +601,14 @@ gameloop() {
                                                play_tune(1);
                                                break;
                                        case GAME_OVER:
-                                               state = HIGH_SCORE_ENTRY;
-                                               state_timeout = 5.0e6;
                                                if(new_high_score(score)) {
                                                        SDL_Event e;
+                                                       state = HIGH_SCORE_ENTRY;
+                                                       state_timeout = 5.0e6;
                                                        SDL_EnableUNICODE(1);
                                                        while(SDL_PollEvent(&e))
                                                                ;
-                                               } else {
+                                               } else if(!keystate[SDLK_SPACE]) {
                                                        state = HIGH_SCORE_DISPLAY;
                                                        state_timeout = 400;
                                                }
@@ -710,73 +641,79 @@ gameloop() {
                                                blast_radius = BLAST_RADIUS * (DEAD_PAUSE_LENGTH - state_timeout) / 20.0;
                                                fixonly = 0;
                                        }
-                                       blast_rocks(shipx, shipy, blast_radius, fixonly);
+                                       blast_rocks(bangx, bangy, blast_radius, fixonly);
 
-                                       if(shipx < 60) shipx = 60;
+                                       if(bangx < 60) bangx = 60;
                                }
                        }
 
                        new_rocks();
 
-                       // FRICTION?
-                       if(friction) {
-                               shipdx *= pow((double)0.9,(double)gamerate);
-                               shipdy *= pow((double)0.9,(double)gamerate);
-                       }
-
                        // INERTIA
-                       shipx += shipdx*gamerate;
-                       shipy += shipdy*gamerate;
-                       
+                       shipx += shipdx*t_frame;
+                       shipy += shipdy*t_frame;
+
                        // SCROLLING
-                       if(state == GAMEPLAY) {
-                               tmp = shipy - (YSIZE / 2);
-                               tmp += shipdy * 25;
-                               tmp /= -25;
-                               tmp = ((screendy * (gamerate - 12)) + (tmp * gamerate)) / 12;
-                               screendy = -tmp;
-                               tmp = shipx - (XSIZE / 2);
-                               tmp += shipdx * 25;
-                               tmp /= -25;
-                               tmp = ((screendx * (gamerate - 12)) + (tmp * gamerate)) / 12;
-                               screendx = -tmp;
-                       } else if(state != DEAD_PAUSE) screendx = 7.5;
-
-                       xscroll = screendx * gamerate;
-                       yscroll = screendy * gamerate;
+                       tmp = shipy - (YSIZE / 2);
+                       tmp += shipdy * 25;
+                       tmp /= -25;
+                       tmp = ((screendy * (t_frame - 12)) + (tmp * t_frame)) / 12;
+                       screendy = -tmp;
+                       tmp = shipx - (XSIZE / 3);
+                       tmp += shipdx * 25;
+                       tmp /= -25;
+                       tmp = ((screendx * (t_frame - 12)) + (tmp * t_frame)) / 12;
+                       screendx = -tmp;
+
+                       // taper off if we would hit the barrier in under 2 seconds.
+                       if(back_dist + (screendx - SCREENDXMIN)*TO_TICKS(2) < 0) {
+                               screendx = SCREENDXMIN - (back_dist/TO_TICKS(2));
+                       }
+
+                       xscroll = screendx * t_frame;
+                       yscroll = screendy * t_frame;
+                       back_dist += (screendx - SCREENDXMIN)*t_frame;
+                       if(opt_max_lead >= 0) back_dist = min(back_dist, opt_max_lead);
+
                        shipx -= xscroll;
                        shipy -= yscroll;
 
+                       // move bang center
+                       bangx += bangdx*t_frame - xscroll;
+                       bangy += bangdy*t_frame - yscroll;
+
                        move_rocks();
 
 
                        // BOUNCE X
                        if(shipx<0 || shipx>XSIZE-surf_ship->w) {
                                // BOUNCE from left and right wall
-                               shipx -= shipdx*gamerate;
-                               shipdx *= -99;
+                               shipx -= (shipdx-screendx)*t_frame;
+                               shipdx = screendx - (shipdx-screendx)*opt_bounciness;
                        }
 
                        // BOUNCE Y
                        if(shipy<0 || shipy>YSIZE-surf_ship->h) {
                                // BOUNCE from top and bottom wall
-                               shipy -= shipdy;
-                               shipdy *= -0.99;
+                               shipy -= (shipdy-screendy)*t_frame;
+                               shipdy = screendy - (shipdy-screendy)*opt_bounciness;
                        }
 
 
                        if(draw() && state == GAMEPLAY) {
-                               // Play the explosion sound
-                               play_sound(0);
+                               // Died
+                               play_sound(0); // Play the explosion sound
+                               bangx = shipx; bangy = shipy; bangdx = shipdx; bangdy = shipdy;
                                make_bang_dots(shipx,shipy,shipdx,shipdy,surf_ship,30);
                                shipdx *= 0.5; shipdy *= 0.5;
+                               if(shipdx < SCREENDXMIN) shipdx = SCREENDXMIN;
                                if(--nships <= 0) {
-                                       shipdx = 0; shipdy = 0;
-                                       gameover = 1;
                                        state = GAME_OVER;
+                                       gameover = 1;
+                                       shipdx = 8; shipdy = 0;
                                        state_timeout = 200.0;
                                        fadetimer = 0.0;
-                                       faderate = gamerate;
+                                       faderate = t_frame;
                                }
                                else {
                                        state = DEAD_PAUSE;
@@ -787,6 +724,7 @@ gameloop() {
                        SDL_PumpEvents();
                        keystate = SDL_GetKeyState(NULL);
 
+                       // new game
                        if(keystate[SDLK_SPACE] && (state == HIGH_SCORE_DISPLAY || state == TITLE_PAGE)) {
 
                                reset_rocks();
@@ -798,11 +736,11 @@ gameloop() {
                                play_tune(1);
 
                                gameover = 0;
-                               shipx = XSIZE/2; shipy = YSIZE/2;
+                               shipx = XSIZE/2.2; shipy = YSIZE/2;
                                shipdx = screendx; shipdy = screendy;
                        }
 
-                       maneuver = 0;
+                       jets = 0;
                } else {
                        SDL_PumpEvents();
                        keystate = SDL_GetKeyState(NULL);
@@ -812,10 +750,10 @@ gameloop() {
                        if(!gameover) {
 
                                if(!paused) {
-                                       if(keystate[SDLK_UP] | keystate[SDLK_c])                { shipdy -= 1.5*gamerate; maneuver |= 1<<3;}
-                                       if(keystate[SDLK_DOWN] | keystate[SDLK_t])              { shipdy += 1.5*gamerate; maneuver |= 1<<1;}
-                                       if(keystate[SDLK_LEFT] | keystate[SDLK_h])              { shipdx -= 1.5*gamerate; maneuver |= 1<<2;}
-                                       if(keystate[SDLK_RIGHT] | keystate[SDLK_n])             { shipdx += 1.5*gamerate; maneuver |= 1;}
+                                       if(keystate[SDLK_LEFT]  | keystate[SDLK_h]) { shipdx -= 1.5*t_frame; jets |= 1<<0;}
+                                       if(keystate[SDLK_DOWN]  | keystate[SDLK_t]) { shipdy += 1.5*t_frame; jets |= 1<<1;}
+                                       if(keystate[SDLK_RIGHT] | keystate[SDLK_n]) { shipdx += 1.5*t_frame; jets |= 1<<2;}
+                                       if(keystate[SDLK_UP]    | keystate[SDLK_c]) { shipdy -= 1.5*t_frame; jets |= 1<<3;}
                                        if(keystate[SDLK_3])            { SDL_SaveBMP(surf_screen, "snapshot.bmp"); }
                                }
 
@@ -848,51 +786,15 @@ gameloop() {
 
 int
 main(int argc, char **argv) {
-       int x, fullscreen;
-
-       fullscreen = 0;
-       tail_plume = 0;
-       friction = 0;
-       sound_flag = 1;
-       music_flag = 0;
-
-       while ((x = getopt(argc,argv,"efhmps")) >= 0) {
-               switch(x) {
-                       case 'e': // engine
-                               tail_plume = 1;
-                       break;
-                       case 'f': // fullscreen
-                               fullscreen = 1;
-                       break;
-                       case 'h': // help
-                               printf("Variations on RockDodger\n"
-                                      " -e big tail [E]ngine\n"
-                                      " -f [F]ull screen\n"
-                                      " -h this [H]elp message\n"
-                                      " -m enable [M]usic\n"
-                                      " -p original [P]hysics (friction)\n"
-                                      " -s [S]ilent (no sound)\n");
-                               exit(0);
-                       break;
-                       case 'm': // music
-                               music_flag = 1;
-                       case 'p': // physics
-                               friction = 1;
-                       break;
-                       case 's': // silent
-                               sound_flag = 0;
-                               music_flag = 0;
-                       break;
-               }
-       }
+       init_opts();
+       argp_parse(&argp, argc, argv, 0, 0, 0);
 
-       if(init(fullscreen)) {
+       if(init()) {
                printf ("ta: '%s'\n",initerror);
                return 1;
        }
 
        reset_rocks();
-       initticks = SDL_GetTicks();
        gameloop();
 
        return 0;