X-Git-Url: https://jasonwoof.com/gitweb/?p=vor.git;a=blobdiff_plain;f=main.c;h=8e413bd2e4dcb0355dbf654d8e5f00d629d72d6d;hp=a1864319ddfa3548cc6a84cf0541773e9ad4d055;hb=6a635ec5768b4e40a5db1355e14b834dca864231;hpb=b5a8e092201fa4c7c95a00dee56abe228fe60fdd

diff --git a/main.c b/main.c
index a186431..8e413bd 100644
--- a/main.c
+++ b/main.c
@@ -25,6 +25,7 @@ extern int font_height;
 void clearBuffer();
 
 // includes {{{
+#include "config.h"
 #include <SDL/SDL.h>
 #include <SDL/SDL_image.h>
 #include <stdio.h>
@@ -40,19 +41,6 @@ void clearBuffer();
 #include "SFont.h"
 // }}}
 // constants {{{
-#define XSIZE 640
-#define YSIZE 480
-#define NROCKS 6	// Number of rock image files, not number of rocks visible
-#define MAXROCKS 120 // MAX Rocks
-#define MAXROCKHEIGHT 100
-#define ROCKRATE 2
-#define MAXBLACKPOINTS 500
-#define MAXENGINEDOTS 5000
-#define MAXBANGDOTS 50000
-#define MAXSPACEDOTS 2000
-#define W 100
-#define M 255
-#define BIG_FONT_FILE "fonts/score.png"
 // }}}
 // macros {{{
 #define CONDERROR(a) if((a)) {initerror = strdup(SDL_GetError());return 1;}
@@ -66,6 +54,8 @@ struct rock_struct {
 	// soon as it isn't we BLOW UP
 	float x,y,xvel,yvel;
 	int active;
+	int dead;  // has been blown out of the way
+	           // to make room for a new ship appearing.
 	SDL_Surface *image;
 	int type_number;
 	float heat;
@@ -145,16 +135,14 @@ float xship,yship = 240.0;	// X position, 0..XSIZE
 float xvel,yvel;	// Change in X position per tick.
 float rockrate,rockspeed;
 float movementrate;
-float shieldlevel, shieldpulse = 0;
 float yscroll;
+float scrollvel;
 
 int nships,score,initticks,ticks_since_last, last_ticks;
-int initialshield, gameover, fast;
+int gameover;
 int countdown = 0;
 int maneuver = 0;
-int laser = 0;
-int shieldsup = 0;
-int oss_sound_flag = 0;
+int sound_flag = 1, music_flag = 0;
 int tail_plume = 0; // display big engine at the back?
 int friction = 0;	// should there be friction?
 int scorerank;
@@ -195,32 +183,12 @@ extern char *optarg;
 extern int optind, opterr, optopt;
 // }}}
 
-// ************************************* FUNCS
-#ifdef DOTCOLLISION
-int dotcollision(SDL_Surface *s) {
-	int i,j,m;
-	Uint16 *rawpixel, *r;
-
-	/*
-	 * Kill all the dots which collide with other objects.
-	 * This does not work, it's probably in the wrong place or something.
-	 */
-	SDL_LockSurface(s);
-	rawpixel = (Uint16 *) s->pixels;
-	if(bangdotlife > 0 && bangdotlife<80) {
-		for(i = 0; i<nbangdots; i++) {
-			if(bdot[i].x>0 && bdot[i].x<XSIZE && bdot[i].y>0 && bdot[i].y<YSIZE) {
-				r = &rawpixel[(int)(s->pitch/2*(int)(bdot[i].y)) + (int)(bdot[i].x)];
-			if(*r != (bdot[i].c ? bdot[i].c : heatcolor[bangdotlife*2]))
-				bdot[i].active = 0;
-			}
-		}
-	}
-	SDL_UnlockSurface(s);
-
-	return;
+float dist_sq(float x1, float y1, float x2, float y2)
+{
+	return (x2-x1)*(x2-x1) + (y2-y1)*(y2-y1);
 }
-#endif
+
+// ************************************* FUNCS
 
 FILE *hs_fopen(char *mode) {
 	FILE *f;
@@ -313,43 +281,6 @@ void init_space_dots() {
 	}
 }
 
-int drawlaser() {
-	int i,xc,hitrock;
-	Uint16 c, *rawpixel;
-
-	hitrock = -1;
-	xc = XSIZE;
-	// let xc = x coordinate of the collision between the laser and a space rock
-	// 1. Calculate xc and determine the asteroid that was hit
-	for(i = 0; i<MAXROCKS; i++) {
-		if(rock[i].active) {
-			if(yship + 12>rock[i].y && yship + 12<rock[i].y + rock[i].image->h && xship + 32<rock[i].x + (rock[i].image->w/2) && rock[i].x + (rock[i].image->w/2) < xc) {
-				xc = rock[i].x + (rock[i].image->w/2);
-				hitrock = i;
-			}
-		}
-	}
-
-	if(hitrock >= 0) {
-		rock[hitrock].heat += movementrate*3;
-	}
-
-	// Plot a number of random dots between xship and XSIZE
-	SDL_LockSurface(surf_screen);
-	rawpixel = (Uint16 *) surf_screen->pixels;
-	c = SDL_MapRGB(surf_ship->format,rnd()*128,128 + rnd()*120,rnd()*128);
-
-	for(i = 0; i<(xc-xship)*5; i += 10) {
-		int x,y;
-		x = rnd()*(xc-(xship + 32)) + xship + 32;
-		y = yship + 12 + (rnd()-0.5)*1.5;
-		rawpixel[surf_screen->pitch/2*y + x] = c;
-	}
-
-	SDL_UnlockSurface(surf_screen);
-}
-
-
 int makebangdots(int xbang, int ybang, int xvel, int yvel, SDL_Surface *s, int power) {
 
 	// TODO - stop generating dots after a certain amount of time has passed, to cope with slower CPUs.
@@ -668,26 +599,23 @@ int init(int fullscreen) {
 		}
 	}
 
-	if(oss_sound_flag) {
-
-	// Initialise SDL with audio and video
-	if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) != 0) {
-		oss_sound_flag = 0;
-		printf ("Can't open sound, starting without it\n");
-		atexit(SDL_Quit);
-	} else {
-		atexit(SDL_Quit);
-		atexit(SDL_CloseAudio);
-		oss_sound_flag = init_sound();
-	}
-
+	if(sound_flag) {
+		// Initialize SDL with audio and video
+		if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) != 0) {
+			sound_flag = 0;
+			printf ("Can't open sound, starting without it\n");
+			atexit(SDL_Quit);
+		} else {
+			atexit(SDL_Quit);
+			atexit(SDL_CloseAudio);
+			sound_flag = init_sound();
+		}
 	} else {
-		// Initialise with video only
+		// Initialize with video only
 		CONDERROR(SDL_Init(SDL_INIT_VIDEO) != 0);
 		atexit(SDL_Quit);
 	}
 
-	if(oss_sound_flag)
 	play_tune(0);
 
 	// Attempt to get the required video size
@@ -696,7 +624,7 @@ int init(int fullscreen) {
 	surf_screen = SDL_SetVideoMode(XSIZE,YSIZE,16,flag);
 
 	// Set the title bar text
-	SDL_WM_SetCaption("Rock Dodgers", "rockdodgers");
+	SDL_WM_SetCaption("Variations on Rockdodger", "VoR");
 
 	NULLERROR(surf_screen);
 
@@ -829,11 +757,6 @@ int draw() {
 	// Draw the background dots
 	drawdots(surf_screen);
 
-	// If it's firing, draw the laser
-	if(laser) {
-		drawlaser();
-	}
-
 	// Draw ship
 	if(!gameover && (state == GAMEPLAY || state == DEMO) ) {
 		src.w = surf_ship->w;
@@ -1010,48 +933,20 @@ int draw() {
 	}
 
 	if(!gameover && state == GAMEPLAY) {
-		// Show the freaky shields
 		SDL_LockSurface(surf_screen);
 		raw_pixels = (Uint16 *) surf_screen->pixels;
-		if(initialshield>0 || shieldsup && shieldlevel>0) {
-			int x,y,l;
-			Uint16 c;
-
-			if(initialshield>0) {
-				initialshield -= movementrate;
-				c = SDL_MapRGB(surf_screen->format,0,255,255);
-			} else {
-				c = heatcolor[(int)shieldlevel];
-				shieldlevel -= movementrate;
-			}
-
-			shieldpulse += 0.2;
-			for(p = black_point; p<blackptr; p++) { 
-				x = p->x + (int)xship + (rnd() + rnd()-1)*sin(shieldpulse)*4 + 1;
-				y = p->y + (int)yship + (rnd() + rnd()-1)*sin(shieldpulse)*4 + 1;
-				if(x>0 && y>0 && x<XSIZE && y<YSIZE) {
-					offset = surf_screen->pitch/2 * y + x;
-					raw_pixels[offset] = c;
-				}
-			}
-		} else {
-			// When the shields are off, check that the black points 
-			// on the ship are still black, and not covered up by rocks
-			for(p = black_point; p<blackptr; p++) { 
-				offset = surf_screen->pitch/2 * (p->y + (int)yship) + p->x + (int)xship;
-				if(raw_pixels[offset]) {
-					// Set the bang flag
-					bang = 1;
-				}
+		// Check that the black points on the ship are
+		// still black, and not covered up by rocks.
+		for(p = black_point; p<blackptr; p++) { 
+			offset = surf_screen->pitch/2 * (p->y + (int)yship) + p->x + (int)xship;
+			if(raw_pixels[offset]) {
+				// Set the bang flag
+				bang = 1;
 			}
 		}
 		SDL_UnlockSurface(surf_screen);
 	}
 
-#ifdef DOTCOLLISION
-	dotcollision(surf_screen); // Kill dots that are not on their spots
-#endif
-
 	// Draw all the little ships
 	if(state == GAMEPLAY || state == DEAD_PAUSE || state == GAME_OVER)
 	for(i = 0; i<nships-1; i++) {
@@ -1106,12 +1001,7 @@ int gameloop() {
 						// Create a new ship and start all over again
 						state = GAMEPLAY;
 						play_tune(1);
-						initialshield = 150;
-						xship = 10;
-						yship = YSIZE/2;
-						xvel = 2;
-						yvel = 0;
-						shieldlevel = 3*W;
+						xship -= 50;
 					break;
 					case GAME_OVER:
 						state = HIGH_SCORE_ENTRY;
@@ -1156,6 +1046,24 @@ int gameloop() {
 						state_timeout = 200.0;
 					break;
 				}
+			} else {
+				if(state == DEAD_PAUSE) {
+					float blast_radius = BLAST_RADIUS * state_timeout / 20.0;
+					if(xship < 60) xship = 60;
+					for(i = 0; i<MAXROCKS; i++ ) {
+						float dx, dy, n;
+						if(rock[i].x <= 0) continue;
+						dx = rock[i].x - xship;
+						dy = rock[i].y - yship;
+						n = sqrt(dx*dx + dy*dy);
+						if(n < blast_radius) {
+							n *= 20;
+							rock[i].xvel += rockrate*(dx+30)/n;
+							rock[i].yvel += rockrate*dy/n;
+							rock[i].dead = 1;
+						}
+					}
+				}
 			}
 
 			if(--countdown <= 0 && (rnd()*100.0<(rockrate += 0.025))) {
@@ -1195,23 +1103,33 @@ int gameloop() {
 
 			// SCROLLING
 			yscroll = yship - (YSIZE / 2);
-			yscroll /= -15;
+			yscroll += yvel * 25;
+			yscroll /= -25;
+			yscroll = ((scrollvel * (12 - movementrate)) + (yscroll * movementrate)) / 12;
+			scrollvel = yscroll;
 			yscroll = yscroll*movementrate;
 			yship += yscroll;
 			
 			// Move all the rocks
-			for(i = 0; i<MAXROCKS; i++) if(rock[i].active) {
-				rock[i].x += rock[i].xvel*movementrate;
-				rock[i].y += rock[i].yvel*movementrate + yscroll;
-			if(rock[i].y > YSIZE) {
-				rock[i].y -= YSIZE;
-				rock[i].y -= rock[i].image->w;
-			} else if(rock[i].y < -rock[i].image->w) {
-				rock[i].y += YSIZE;
-				rock[i].y += rock[i].image->w;
-			}
-			if(rock[i].x<-32.0)
-				rock[i].active = 0;
+			for(i = 0; i < MAXROCKS; i++) {
+				if(rock[i].active) {
+					rock[i].x += rock[i].xvel*movementrate;
+					rock[i].y += rock[i].yvel*movementrate + yscroll;
+					if(rock[i].y > YSIZE || rock[i].y < -rock[i].image->h) {
+						if(rock[i].dead) {
+							rock[i].dead = 0;
+							rock[i].active = 0;
+						} else {
+							// wrap
+							rock[i].y = (YSIZE - rock[i].image->h) - rock[i].y;
+							rock[i].y += (rock[i].yvel*movementrate + yscroll) * 1.01;
+						}
+					}
+					if(rock[i].x < -rock[i].image->w || rock[i].x > XSIZE) {
+						rock[i].active = 0;
+						rock[i].dead = 0;
+					}
+				}
 			}
 
 
@@ -1231,10 +1149,8 @@ int gameloop() {
 
 
 			if(draw() && state == GAMEPLAY) {
-				if(oss_sound_flag) {
-					// Play the explosion sound
-					play_sound(0);
-				}
+				// Play the explosion sound
+				play_sound(0);
 				makebangdots(xship,yship,xvel,yvel,surf_ship,30);
 				if(--nships <= 0) {
 					gameover = 1;
@@ -1245,7 +1161,9 @@ int gameloop() {
 				}
 				else {
 					state = DEAD_PAUSE;
-					state_timeout = 100.0;
+					state_timeout = 20.0;
+					xvel = 0;
+					yvel = 0;
 				}
 			}
 
@@ -1260,6 +1178,7 @@ int gameloop() {
 
 				for(i = 0; i<MAXROCKS; i++ ) {
 					rock[i].active = 0;
+					rock[i].dead = 0;
 				}
 
 				rockrate = 54.0;
@@ -1276,13 +1195,10 @@ int gameloop() {
 				yvel = 0;
 				xship = 0;
 				yship = YSIZE/2;
-				shieldlevel = 3*W;
-				initialshield = 0;
 
 			}
 
 			maneuver = 0;
-			laser = 0;
 		} else {
 			SDL_PumpEvents();
 			keystate = SDL_GetKeyState(NULL);
@@ -1322,7 +1238,6 @@ int gameloop() {
 
 			}
 			else {
-				shieldsup = 0;
 				paused = 0;
 				pausedown = 0;
 			}
@@ -1339,9 +1254,10 @@ main(int argc, char **argv) {
 	fullscreen = 0;
 	tail_plume = 0;
 	friction = 0;
-	oss_sound_flag = 1;
+	sound_flag = 1;
+	music_flag = 0;
 
-	while ((x = getopt(argc,argv,"efhsp")) >= 0) {
+	while ((x = getopt(argc,argv,"efhmps")) >= 0) {
 		switch(x) {
 			case 'e': // engine
 				tail_plume = 1;
@@ -1351,18 +1267,22 @@ main(int argc, char **argv) {
 			break;
 			case 'h': // help
 				printf("Variations on RockDodger\n"
-				       " -e Big tail [E]ngine\n"
+				       " -e big tail [E]ngine\n"
 				       " -f [F]ull screen\n"
-				       " -h This [H]elp message\n"
-				       " -p Stupid original [P]hysics (friction)\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
-				oss_sound_flag = 0;
+				sound_flag = 0;
+				music_flag = 0;
 			break;
 		}
 	}
@@ -1375,6 +1295,7 @@ main(int argc, char **argv) {
 	while(1) {
 		for(i = 0; i<MAXROCKS; i++) {
 			rock[i].active = 0;
+			rock[i].dead = 0;
 		}
 		rockrate = 54.0;
 		rockspeed = 5.0;