X-Git-Url: https://jasonwoof.com/gitweb/?p=vor.git;a=blobdiff_plain;f=rocks.c;h=5f637e038c678d3736a5e72e1f3c7e73eda2db37;hp=8cb7987ae3b4b4025aeeaf657c6f3112392e0fda;hb=0224eb908d4084f52a22c8d64404a0efb4acfa35;hpb=f33f1a05297ce0156030f0f78ecf5b84e00d424c

diff --git a/rocks.c b/rocks.c
index 8cb7987..5f637e0 100644
--- a/rocks.c
+++ b/rocks.c
@@ -9,27 +9,19 @@
 #include "globals.h"
 #include "mt.h"
 #include "rocks.h"
+#include "sprite.h"
 
-SDL_Surface *load_image(char *filename);
-
-struct rock rocks[MAXROCKS], *free_rocks;
-
-struct rock **rock_buckets[2];
-int n_buckets;
-// we have two sets of buckets -- this variable tells which we are using.
-int p;
-int bw, bh;
-int grid_size;
-
-SDL_Surface *surf_rock[NROCKS];
-struct shape rock_shapes[NROCKS];
+static struct rock rocks[MAXROCKS];
+static struct rock prototypes[NROCKS];
 
 // timers for rock generation.
-float rtimers[4];
+static float rtimers[4];
 
-uint32_t nrocks;
-float nrocks_timer;
-float nrocks_inc_ticks = 2*60*20/(F_ROCKS-I_ROCKS);
+uint32_t nrocks = NORMAL_I_ROCKS;
+uint32_t initial_rocks = NORMAL_I_ROCKS;
+uint32_t final_rocks = NORMAL_F_ROCKS;
+float nrocks_timer = 0;
+float nrocks_inc_ticks = 2*60*20/(NORMAL_F_ROCKS-NORMAL_I_ROCKS);
 
 // constants for rock generation.
 #define KH (32*20)  // 32 s for a speed=1 rock to cross the screen horizontally.
@@ -37,76 +29,35 @@ float nrocks_inc_ticks = 2*60*20/(F_ROCKS-I_ROCKS);
 #define RDX 2.5  // range for rock dx values (+/-)
 #define RDY 2.5  // range for rock dy values (+/-)
 
-static inline struct rock **
-bucket(int x, int y, int p)
-{
-	int b = (x+grid_size)/grid_size + bw*((y+grid_size)/grid_size);
-	return &rock_buckets[p][b];
-}
-
-void
-init_buckets(void)
-{
-	int scr_grid_w = (XSIZE+2*grid_size-1) / grid_size;
-	int scr_grid_h = (YSIZE+2*grid_size-1) / grid_size;
-	bw = 1 + scr_grid_w + 1;
-	bh = 1 + scr_grid_h + 1;
-	n_buckets = bw * bh;
-	
-	rock_buckets[0] = malloc(n_buckets * sizeof(struct rock *));
-	rock_buckets[1] = malloc(n_buckets * sizeof(struct rock *));
-	if(!rock_buckets[0] || !rock_buckets[1]) {
-		fprintf(stderr, "Can't allocate rock buckets.\n");
-		exit(1);
-	}
-	p = 0;
-}
-
-void
-transfer_rock(struct rock *r, struct rock **from, struct rock **to)
-{
-	*from = &r->next->rock;
-	r->next = SPRITE(*to);
-	*to = r;
-}
-
 void
 reset_rocks(void)
 {
-	int i;
-
-	for(i=0; i<MAXROCKS; i++) rocks[i].image = NULL;
-	rocks[0].next = NULL; free_rocks = &rocks[MAXROCKS-1];
-	for(i = 1; i<MAXROCKS; i++) rocks[i].next = SPRITE(&rocks[i-1]);
-	for(i = 0; i<n_buckets; i++) {
-		rock_buckets[0][i] = NULL;
-		rock_buckets[1][i] = NULL;
-	}
-
-	nrocks = I_ROCKS;
+	nrocks = initial_rocks;
+	nrocks_inc_ticks = 2*60*20/(final_rocks-initial_rocks);
 	nrocks_timer = 0;
 }
 
 #define ROCK_LEN sizeof("sprites/rockXX.png")
 
-int
-init_rocks(void)
+void
+load_rocks(void)
 {
 	int i;
 	char a[ROCK_LEN];
-	int maxw=0, maxh=0;
 
-	for(i = 0; i<NROCKS; i++) {
+	for(i=0; i<NROCKS; i++) {
 		snprintf(a, ROCK_LEN, "sprites/rock%02d.png", i);
-		NULLERROR(surf_rock[i] = load_image(a));
-		get_shape(surf_rock[i], &rock_shapes[i]);
-		maxw = max(maxw, rock_shapes[i].w);
-		maxh = max(maxh, rock_shapes[i].h);
+		load_sprite(SPRITE(&prototypes[i]), a);
+		prototypes[i].sprite_type = ROCK;
+		prototypes[i].flags = MOVE|DRAW|COLLIDE;
 	}
-	grid_size = max(maxw, maxh) * 3 / 2;
-	init_buckets();
+
+	memset(rocks, 0, MAXROCKS*sizeof(struct rock));
+
+	for(i=1; i<MAXROCKS; i++) rocks[i].next = &rocks[i-1];
+	free_sprites[ROCK] = SPRITE(&rocks[MAXROCKS-1]);
+
 	reset_rocks();
-	return 0;
 }
 
 enum { LEFT, RIGHT, TOP, BOTTOM };
@@ -180,13 +131,13 @@ weighted_rnd_range(float min, float max) {
 void
 new_rocks(void)
 {
-	int i;
+	int i, type;
 	struct rock *r;
 	float ti[4];
 	float rmin[4];
 	float rmax[4];
 
-	if(nrocks < F_ROCKS) {
+	if(nrocks < final_rocks) {
 		nrocks_timer += t_frame;
 		if(nrocks_timer >= nrocks_inc_ticks) {
 			nrocks_timer -= nrocks_inc_ticks;
@@ -203,11 +154,11 @@ new_rocks(void)
 	for(i=0; i<4; i++) {
 		while(rtimers[i] >= 1) {
 			rtimers[i] -= 1;
-			if(!free_rocks) return;  // sorry, we ran out of rocks!
-			r = free_rocks;
-			r->type = urnd() % NROCKS;
-			r->image = surf_rock[r->type];
-			r->shape = &rock_shapes[r->type];
+			if(!free_sprites[ROCK]) return;  // sorry, we ran out of rocks!
+			r = (struct rock *) remove_sprite(&free_sprites[ROCK]);
+			type = urnd() % NROCKS;
+			*r = prototypes[type];
+			r->type = type;
 			switch(i) {
 				case RIGHT:
 					r->x = XSIZE;
@@ -238,145 +189,15 @@ new_rocks(void)
 					r->dy = weighted_rnd_range(rmin[i], rmax[i]) + screendy;
 					break;
 			}
-			transfer_rock(r, &free_rocks, bucket(r->x, r->y, p));
+			add_sprite(SPRITE(r));
 		}
 	}
 }
 
-void
-move_rocks(void)
-{
-	int b;
-	struct rock **head;
-	struct rock *r;
-
-	// Move all the rocks
-	for(b=0; b<n_buckets; b++) {
-		head=&rock_buckets[p][b]; r=*head;
-		while(*head) {
-			r=*head;
-
-			// move
-			r->x += (r->dx - screendx)*t_frame;
-			r->y += (r->dy - screendy)*t_frame;
-
-			// clip it, or sort it into the other bucket set
-			// (either way we move it out of this list).
-			if(r->x + r->image->w < 0 || r->x >= XSIZE
-					|| r->y + r->image->h < 0 || r->y >= YSIZE) {
-				transfer_rock(r, head, &free_rocks);
-				r->image = NULL;
-			} else transfer_rock(r, head, bucket(r->x, r->y, 1-p));
-		}
-	}
-	p = 1-p;  // switch current set of buckets.
-}
 
 void
 draw_rocks(void)
 {
 	int i;
-	SDL_Rect dest;
-
-	for(i=0; i<MAXROCKS; i++) {
-		if(!rocks[i].image) continue;
-		dest.x = rocks[i].x; dest.y = rocks[i].y;
-		SDL_BlitSurface(rocks[i].image,NULL,surf_screen,&dest);
-	}
-}
-
-int
-hit_in_bucket(struct rock *r, float x, float y, struct shape *shape)
-{
-	for(; r; r=&r->next->rock) {
-		if(collide(x - r->x, y - r->y, r->shape, shape)) return 1;
-	}
-	return 0;
-}
-
-int
-hit_rocks(float x, float y, struct shape *shape)
-{
-	int ix, iy;
-	int l, r, t, b;
-	struct rock **bucket;
-
-	ix = x + grid_size; iy = y + grid_size;
-	l = ix / grid_size; r = (ix+shape->w)/grid_size;
-	t = iy / grid_size; b = (iy+shape->h)/grid_size;
-	bucket = &rock_buckets[p][l + t*bw];
-
-	if(hit_in_bucket(*bucket, x, y, shape)) return true;
-	if(l > 0 && hit_in_bucket(*(bucket-1), x, y, shape)) return true;
-	if(t > 0 && hit_in_bucket(*(bucket-bw), x, y, shape)) return true;
-	if(l > 0 && t > 0 && hit_in_bucket(*(bucket-1-bw), x, y, shape)) return true;
-
-	if(r > l) {
-		if(hit_in_bucket(*(bucket+1), x, y, shape)) return true;
-		if(t > 0 && hit_in_bucket(*(bucket+1-bw), x, y, shape)) return true;
-	}
-	if(b > t) {
-		if(hit_in_bucket(*(bucket+bw), x, y, shape)) return true;
-		if(l > 0 && hit_in_bucket(*(bucket-1+bw), x, y, shape)) return true;
-	}
-	if(r > l && b > t && hit_in_bucket(*(bucket+1+bw), x, y, shape)) return true;
-	return false;
-}
-
-int
-pixel_hit_in_bucket(struct rock *r, float x, float y)
-{
-	for(; r; r=&r->next->rock) {
-		if(x < r->x || y < r->y) continue;
-		if(pixel_collide(x - r->x, y - r->y, r->shape)) return 1;
-	}
-	return 0;
-}
-
-int
-pixel_hit_rocks(float x, float y)
-{
-	int ix, iy;
-	int l, t;
-	struct rock **bucket;
-
-	ix = x + grid_size; iy = y + grid_size;
-	l = ix / grid_size; t = iy / grid_size;
-	bucket = &rock_buckets[p][l + t*bw];
-	if(pixel_hit_in_bucket(*bucket, x, y)) return true;
-	if(l > 0 && pixel_hit_in_bucket(*(bucket-1), x, y)) return true;
-	if(t > 0 && pixel_hit_in_bucket(*(bucket-bw), x, y)) return true;
-	if(l > 0 && t > 0 && pixel_hit_in_bucket(*(bucket-1-bw), x, y)) return true;
-	return false;
-}
-
-void
-blast_rocks(float x, float y, float radius, int onlyslow)
-{
-	int b;
-	struct rock *r;
-	float dx, dy, n;
-
-	if(onlyslow) return;
-
-	for(b=0; b<n_buckets; b++) {
-		for(r=rock_buckets[p][b]; r; r=&r->next->rock) {
-			if(r->x <= 0) continue;
-
-			// This makes it so your explosion from dying magically doesn't leave
-			// any rocks that aren't moving much on the x axis. If onlyslow is set,
-			// only rocks that are barely moving will be pushed.
-			if(onlyslow && (r->dx - screendx < -4 || r->dx - screendx > 3)) continue;
-
-			dx = r->x - x;
-			dy = r->y - y;
-
-			n = sqrt(dx*dx + dy*dy);
-			if(n < radius) {
-				n *= 15;
-				r->dx += 54.0*dx/n;
-				r->dy += 54.0*dy/n;
-			}
-		}
-	}
+	for(i=0; i<MAXROCKS; i++) draw_sprite(SPRITE(&rocks[i]));
 }