public boolean isBulletFree(Entity bullet, double xc, double yc, int w, int h) {
double e = 0.1;
int x0 = (int) (xc / 10);
int y0 = (int) (yc / 10);
int x1 = (int) ((xc + w - e) / 10);
int y1 = (int) ((yc + h - e) / 10);
boolean ok = true;
for (int x = x0; x <= x1; x++)
for (int y = y0; y <= y1; y++) {
if (x >= 0 && y >= 0 && x < width && y < height) {
byte ww = walls[x + y * width];
if (ww != 0) ok = false;
if (ww == 5) ok = true;
if (ww == 2) {
int xPush = 0;
int yPush = 0;
if (Math.abs(bullet.xa) > Math.abs(bullet.ya)) {
if (bullet.xa < 0) xPush = -1;
if (bullet.xa > 0) xPush = 1;
} else {
if (bullet.ya < 0) yPush = -1;
if (bullet.ya > 0) yPush = 1;
}
double r = 0.5;
if (walls[(x + xPush) + (y + yPush) * width] == 0
&& getEntities((x + xPush) * 10 + r, (y + yPush) * 10 + r, 10 - r * 2, 10 - r * 2)
.size()
== 0) {
walls[x + y * width] = 0;
walls[(x + xPush) + (y + yPush) * width] = 2;
}
bullet.remove();
}
if (ww == 3) {
Sound.boom.play();
for (int i = 0; i < 16; i++) {
double dir = i * Math.PI * 2 / 8.0;
double xa = Math.sin(dir);
double ya = Math.cos(dir);
double dist = (i / 8) + 1;
add(new Explosion(1, i * 3, x * 10 + 5 + xa * dist, y * 10 + 5 + ya * dist, xa, ya));
}
bullet.remove();
walls[x + y * width] = 0;
}
if (ww == 9) {
if ((bullet instanceof Explosion) && ((Explosion) bullet).power > 0) {
Sound.boom.play();
for (int i = 0; i < 16; i++) {
double dir = i * Math.PI * 2 / 8.0;
double xa = Math.sin(dir);
double ya = Math.cos(dir);
double dist = (i / 8) + 1;
add(
new Explosion(
1, i * 3, x * 10 + 5 + xa * dist, y * 10 + 5 + ya * dist, xa, ya));
}
bullet.remove();
walls[x + y * width] = 0;
}
}
}
}
return ok;
}
