private boolean chain(int target) {
if (chainsUsed) return false;
Ballistica chain = new Ballistica(pos, target, Ballistica.PROJECTILE);
if (chain.collisionPos != enemy.pos || Level.pit[chain.path.get(1)]) return false;
else {
int newPos = -1;
for (int i : chain.subPath(1, chain.dist)) {
if (!Level.solid[i] && Actor.findChar(i) == null) {
newPos = i;
break;
}
}
if (newPos == -1) {
return false;
} else {
final int newPosFinal = newPos;
yell("get over here!");
sprite.parent.add(
new Chains(
pos,
enemy.pos,
new Callback() {
public void call() {
Actor.addDelayed(new Pushing(enemy, enemy.pos, newPosFinal), -1);
enemy.pos = newPosFinal;
Dungeon.level.press(newPosFinal, enemy);
Cripple.prolong(enemy, Cripple.class, 4f);
if (enemy == Dungeon.hero) {
Dungeon.hero.interrupt();
Dungeon.observe();
}
next();
}
}));
}
}
chainsUsed = true;
return true;
}
private void build(int from, int to, boolean stopTarget, boolean stopChars, boolean stopTerrain) {
int w = Level.WIDTH;
int x0 = from % w;
int x1 = to % w;
int y0 = from / w;
int y1 = to / w;
int dx = x1 - x0;
int dy = y1 - y0;
int stepX = dx > 0 ? +1 : -1;
int stepY = dy > 0 ? +1 : -1;
dx = Math.abs(dx);
dy = Math.abs(dy);
int stepA;
int stepB;
int dA;
int dB;
if (dx > dy) {
stepA = stepX;
stepB = stepY * w;
dA = dx;
dB = dy;
} else {
stepA = stepY * w;
stepB = stepX;
dA = dy;
dB = dx;
}
int cell = from;
int err = dA / 2;
while (Level.insideMap(cell)) {
// if we're in a wall, collide with the previous cell along the path.
if (stopTerrain && cell != sourcePos && !Level.passable[cell] && !Level.avoid[cell]) {
collide(path.get(path.size() - 1));
}
path.add(cell);
if ((stopTerrain && cell != sourcePos && Level.losBlocking[cell])
|| (cell != sourcePos && stopChars && Actor.findChar(cell) != null)
|| (cell == to && stopTarget)) {
collide(cell);
}
cell += stepA;
err += dB;
if (err >= dA) {
err = err - dA;
cell = cell + stepB;
}
}
}
