X-Git-Url: https://jasonwoof.com/gitweb/?p=vor.git;a=blobdiff_plain;f=main.c;h=9b593084c53293d8dff927f20272f6f69f9e03f0;hp=4942aa2c5ac0f0f721fb0316d0ebdd57b432bb40;hb=30a8f3daae083e91cd30b016213286a7cdcecb09;hpb=e10d6c0b95e2f4fe7acd75733370dae71bb3b73f

diff --git a/main.c b/main.c
index 4942aa2..9b59308 100644
--- a/main.c
+++ b/main.c
@@ -19,7 +19,9 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
 
-#undef DEBUG
+#ifdef DEBUG
+#include "debug.h"
+#endif
 
 #include "config.h"
 #include "file.h"
@@ -45,7 +47,7 @@ struct rock_struct {
 	// Array of black pixel coordinates. This is scanned 
 	// every frame to see if it's still black, and as
 	// soon as it isn't we BLOW UP
-	float x,y,xvel,yvel;
+	float x,y,dx,dy;
 	int active;
 	int dead;  // has been blown out of the way
 	           // to make room for a new ship appearing.
@@ -92,7 +94,6 @@ SDL_Surface
 	*surf_ship,		// Spaceship element
 	*surf_life,	// Indicator of number of ships remaining
 	*surf_rock[NROCKS],	// THE ROCKS
-	*surf_deadrock[NROCKS],	// THE DEAD ROCKS
 	*surf_font_big;	// The big font
 
 SFont_Font *g_font;
@@ -108,8 +109,8 @@ struct spacedot sdot[MAXSPACEDOTS];
 char topline[1024];
 char *initerror = "";
 
-float xship,yship = 240.0;	// X position, 0..XSIZE
-float xvel,yvel;	// Change in X position per tick.
+float shipx,shipy = 240.0;	// X position, 0..XSIZE
+float shipdx,shipdy;	// Change in X position per tick.
 float rockrate,rockspeed;
 float movementrate;  // this controls the speed of everything that moves.
 float yscroll;
@@ -135,8 +136,7 @@ enum states {
 	DEAD_PAUSE,
 	GAME_OVER,
 	HIGH_SCORE_ENTRY,
-	HIGH_SCORE_DISPLAY,
-	DEMO
+	HIGH_SCORE_DISPLAY
 };
 enum states state = TITLE_PAGE;
 float state_timeout = 600.0;
@@ -194,7 +194,7 @@ init_space_dots() {
 }
 
 void
-makebangdots(int xbang, int ybang, int xvel, int yvel, SDL_Surface *s, int power) {
+makebangdots(int xbang, int ybang, int dx, int dy, SDL_Surface *s, int power) {
 
 	// TODO - stop generating dots after a certain amount of time has passed, to cope with slower CPUs.
 	// TODO - generate and display dots in a circular buffer
@@ -222,8 +222,8 @@ makebangdots(int xbang, int ybang, int xvel, int yvel, SDL_Surface *s, int power
 
 					r = 1-(rnd()*rnd());
 
-					bdot[bd2].dx = (power/50.0)*45.0*cos(theta)*r + xvel;
-					bdot[bd2].dy = (power/50.0)*45.0*sin(theta)*r + yvel;
+					bdot[bd2].dx = (power/50.0)*45.0*cos(theta)*r + dx;
+					bdot[bd2].dy = (power/50.0)*45.0*sin(theta)*r + dy;
 					bdot[bd2].x = x + xbang;
 					bdot[bd2].y = y + ybang;
 
@@ -358,10 +358,10 @@ create_engine_dots(int newdots) {
 				dy = sin(theta)*r;
 
 				dotptr->active = 1;
-				dotptr->x = xship + surf_ship->w/2-14;
-				dotptr->y = yship + surf_ship->h/2 + (rnd()-0.5)*5-1;
-				dotptr->dx = 10*(dx-1.5) + xvel;
-				dotptr->dy = 1*dy + yvel;
+				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++;
@@ -380,7 +380,7 @@ create_engine_dots2(int newdots, int m) {
 
 	// Don't create fresh engine dots when
 	// the game is not being played and a demo is not beng shown
-	if(state != GAMEPLAY && state != DEMO) return;
+	if(state != GAMEPLAY) return;
 
 	for(i = 0; i<newdots; i++) {
 		if(dotptr->active == 0) {
@@ -394,30 +394,30 @@ create_engine_dots2(int newdots, int m) {
 
 
 			dotptr->active = 1;
-			dotptr->x = xship + surf_ship->w/2 + (rnd()-0.5)*3;
-			dotptr->y = yship + surf_ship->h/2 + (rnd()-0.5)*3;
+			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 + xvel;
-					dotptr->dy = 2*dy + yvel;
+					dotptr->dx = -20*adx + shipdx;
+					dotptr->dy = 2*dy + shipdy;
 					dotptr->life = 60 * adx;
 				break;
 				case 1:
-					dotptr->dx = 2*dx + xvel;
-					dotptr->dy = -20*ady + yvel;
+					dotptr->dx = 2*dx + shipdx;
+					dotptr->dy = -20*ady + shipdy;
 					dotptr->life = 60 * ady;
 				break;
 				case 2:
 					dotptr->x += 14;
-					dotptr->dx = 20*adx + xvel;
-					dotptr->dy = 2*dy + yvel;
+					dotptr->dx = 20*adx + shipdx;
+					dotptr->dy = 2*dy + shipdy;
 					dotptr->life = 60 * adx;
 				break;
 				case 3:
-					dotptr->dx = 2*dx + xvel;
-					dotptr->dy = 20*ady + yvel;
+					dotptr->dx = 2*dx + shipdx;
+					dotptr->dy = 20*ady + shipdy;
 					dotptr->life = 60 * ady;
 				break;
 			}
@@ -563,15 +563,11 @@ init(int fullscreen) {
 
 	// Load all our lovely rocks
 	for(i = 0; i<NROCKS; i++) {
-		char a[100];
+		char a[MAX_PATH_LEN];
 
-		sprintf(a,add_path("sprites/rock%d.png"),i);
+		snprintf(a,MAX_PATH_LEN,add_path("sprites/rock%d.png"),i);
 		NULLERROR(temp = IMG_Load(a));
 		NULLERROR(surf_rock[i] = SDL_DisplayFormat(temp));
-
-		sprintf(a,add_path("sprites/deadrock%d.png"),i);
-		NULLERROR(temp = IMG_Load(a));
-		NULLERROR(surf_deadrock[i] = SDL_DisplayFormat(temp));
 	}
 
 	// Remove the mouse cursor
@@ -606,13 +602,13 @@ draw() {
 	drawdots(surf_screen);
 
 	// Draw ship
-	if(!gameover && (state == GAMEPLAY || state == DEMO) ) {
+	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)xship;
-		dest.y = (int)yship;
+		dest.x = (int)shipx;
+		dest.y = (int)shipy;
 		SDL_BlitSurface(surf_ship,&src,surf_screen,&dest);
 	}
 
@@ -726,7 +722,10 @@ draw() {
 		case HIGH_SCORE_DISPLAY:
 			// Display de list o high scores mon.
 			display_scores(surf_screen, 150,50);
-
+			break;
+		case GAMEPLAY:
+		case DEAD_PAUSE:
+			; // no action necessary
 	}
 
 	if(!gameover && state == GAMEPLAY) {
@@ -735,7 +734,7 @@ draw() {
 		// 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;
+			offset = surf_screen->pitch/2 * (p->y + (int)shipy) + p->x + (int)shipx;
 			if(raw_pixels[offset]) {
 				// Set the bang flag
 				bang = 1;
@@ -800,7 +799,7 @@ gameloop() {
 						// Create a new ship and start all over again
 						state = GAMEPLAY;
 						play_tune(1);
-						xship -= 50;
+						shipx -= 50;
 						break;
 					case GAME_OVER:
 						state = HIGH_SCORE_ENTRY;
@@ -827,22 +826,24 @@ gameloop() {
 					case TITLE_PAGE:
 						state = HIGH_SCORE_DISPLAY;
 						state_timeout = 200.0;
-					break;
+						break;
+					case GAMEPLAY:
+						; // no action necessary
 				}
 			} else {
 				if(state == DEAD_PAUSE) {
 					float blast_radius = BLAST_RADIUS * state_timeout / 20.0;
-					if(xship < 60) xship = 60;
+					if(shipx < 60) shipx = 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;
+						dx = rock[i].x - shipx;
+						dy = rock[i].y - shipy;
 						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].dx += rockrate*(dx+30)/n;
+							rock[i].dy += rockrate*dy/n;
 							rock[i].dead = 1;
 						}
 					}
@@ -857,8 +858,8 @@ gameloop() {
 				}
 				if(!rockptr->active) {
 					rockptr->x = (float)XSIZE;
-					rockptr->xvel = -(rockspeed)*(1 + rnd());
-					rockptr->yvel = rnd()-0.5;
+					rockptr->dx = -(rockspeed)*(1 + rnd());
+					rockptr->dy = rnd()-0.5;
 					rockptr->type_number = random() % NROCKS;
 					rockptr->image = surf_rock[rockptr->type_number];// [random()%NROCKS];
 					rockptr->active = 1;
@@ -873,30 +874,30 @@ gameloop() {
 
 			// FRICTION?
 			if(friction) {
-				xvel *= pow((double)0.9,(double)movementrate);
-				yvel *= pow((double)0.9,(double)movementrate);
-				// if(abs(xvel)<0.00001) xvel = 0;
-				// if(abs(yvel)<0.00001) yvel = 0;
+				shipdx *= pow((double)0.9,(double)movementrate);
+				shipdy *= pow((double)0.9,(double)movementrate);
+				// if(abs(shipdx)<0.00001) shipdx = 0;
+				// if(abs(shipdy)<0.00001) shipdy = 0;
 			}
 
 			// INERTIA
-			xship += xvel*movementrate;
-			yship += yvel*movementrate;
+			shipx += shipdx*movementrate;
+			shipy += shipdy*movementrate;
 
 			// SCROLLING
-			yscroll = yship - (YSIZE / 2);
-			yscroll += yvel * 25;
+			yscroll = shipy - (YSIZE / 2);
+			yscroll += shipdy * 25;
 			yscroll /= -25;
 			yscroll = ((scrollvel * (12 - movementrate)) + (yscroll * movementrate)) / 12;
 			scrollvel = yscroll;
 			yscroll = yscroll*movementrate;
-			yship += yscroll;
+			shipy += 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;
+					rock[i].x += rock[i].dx*movementrate;
+					rock[i].y += rock[i].dy*movementrate + yscroll;
 					if(rock[i].y > YSIZE || rock[i].y < -rock[i].image->h) {
 						if(rock[i].dead) {
 							rock[i].dead = 0;
@@ -904,7 +905,7 @@ gameloop() {
 						} else {
 							// wrap
 							rock[i].y = (YSIZE - rock[i].image->h) - rock[i].y;
-							rock[i].y += (rock[i].yvel*movementrate + yscroll) * 1.01;
+							rock[i].y += (rock[i].dy*movementrate + yscroll) * 1.01;
 						}
 					}
 					if(rock[i].x < -rock[i].image->w || rock[i].x > XSIZE) {
@@ -916,24 +917,24 @@ gameloop() {
 
 
 			// BOUNCE X
-			if(xship<0 || xship>XSIZE-surf_ship->w) {
+			if(shipx<0 || shipx>XSIZE-surf_ship->w) {
 				// BOUNCE from left and right wall
-				xship -= xvel*movementrate;
-				xvel *= -0.99;
+				shipx -= shipdx*movementrate;
+				shipdx *= -0.99;
 			}
 
 			// BOUNCE Y
-			if(yship<0 || yship>YSIZE-surf_ship->h) {
+			if(shipy<0 || shipy>YSIZE-surf_ship->h) {
 				// BOUNCE from top and bottom wall
-				yship -= yvel;
-				yvel *= -0.99;
+				shipy -= shipdy;
+				shipdy *= -0.99;
 			}
 
 
 			if(draw() && state == GAMEPLAY) {
 				// Play the explosion sound
 				play_sound(0);
-				makebangdots(xship,yship,xvel,yvel,surf_ship,30);
+				makebangdots(shipx,shipy,shipdx,shipdy,surf_ship,30);
 				if(--nships <= 0) {
 					gameover = 1;
 					state = GAME_OVER;
@@ -944,8 +945,8 @@ gameloop() {
 				else {
 					state = DEAD_PAUSE;
 					state_timeout = 20.0;
-					xvel = 0;
-					yvel = 0;
+					shipdx = 0;
+					shipdy = 0;
 				}
 			}
 
@@ -956,7 +957,7 @@ gameloop() {
 				return 0;
 			}
 
-			if(keystate[SDLK_SPACE] && (state == HIGH_SCORE_DISPLAY || state == TITLE_PAGE || state == DEMO)) {
+			if(keystate[SDLK_SPACE] && (state == HIGH_SCORE_DISPLAY || state == TITLE_PAGE)) {
 
 				for(i = 0; i<MAXROCKS; i++ ) {
 					rock[i].active = 0;
@@ -972,12 +973,11 @@ gameloop() {
 				state = GAMEPLAY;
 				play_tune(1);
 
-				xvel = -1;
 				gameover = 0;
-				yvel = 0;
-				xship = 0;
-				yship = YSIZE/2;
-
+				shipx = 0;
+				shipy = YSIZE/2;
+				shipdx = -1;
+				shipdy = 0;
 			}
 
 			maneuver = 0;
@@ -990,10 +990,10 @@ gameloop() {
 			if(!gameover) {
 
 				if(!paused) {
-					if(keystate[SDLK_UP] | keystate[SDLK_c])		{ yvel -= 1.5*movementrate; maneuver |= 1<<3;}
-					if(keystate[SDLK_DOWN] | keystate[SDLK_t])		{ yvel += 1.5*movementrate; maneuver |= 1<<1;}
-					if(keystate[SDLK_LEFT] | keystate[SDLK_h])		{ xvel -= 1.5*movementrate; maneuver |= 1<<2;}
-					if(keystate[SDLK_RIGHT] | keystate[SDLK_n])		{ xvel += 1.5*movementrate; maneuver |= 1;}
+					if(keystate[SDLK_UP] | keystate[SDLK_c])		{ shipdy -= 1.5*movementrate; maneuver |= 1<<3;}
+					if(keystate[SDLK_DOWN] | keystate[SDLK_t])		{ shipdy += 1.5*movementrate; maneuver |= 1<<1;}
+					if(keystate[SDLK_LEFT] | keystate[SDLK_h])		{ shipdx -= 1.5*movementrate; maneuver |= 1<<2;}
+					if(keystate[SDLK_RIGHT] | keystate[SDLK_n])		{ shipdx += 1.5*movementrate; maneuver |= 1;}
 					if(keystate[SDLK_3])		{ SDL_SaveBMP(surf_screen, "snapshot.bmp"); }
 				}