/**
* Check if a capture would be valid if there's something there to capture.
*
* @param x The x of the location to capture at.
* @param y The y of the location to capture at.
* @return If we can capture it.
*/
@Override
public boolean validCapture(int x, int y) {
// Not even possible.
if (!World.getTile(x, y).IsWalkable) return false;
// Cannot move onto anyone
Actor a = World.getActorAt(x, y);
if (a != this && a.Team == Team) return false;
// Self valid.
if (x == Location.x && y == Location.y) return true;
// Any multiple of 2/1 leaps
int xdiff = Math.abs(x - Location.x);
int ydiff = Math.abs(y - Location.y);
if (!(xdiff == ydiff * 2 || xdiff * 2 == ydiff)) return false;
// Make sure we didn't hit anything
int xd = (x > Location.x ? 1 : -1) * (xdiff > ydiff ? 2 : 1);
int yd = (y > Location.y ? 1 : -1) * (xdiff > ydiff ? 1 : 2);
for (int xi = Location.x, yi = Location.y; xi != x && yi != y; xi += xd, yi += yd) {
Actor a2 = World.getActorAt(xi, yi);
if (!World.getTile(xi, yi).IsWalkable || (a2 != this && a2 != null)) return false;
}
// Passed all tests!
return true;
}
/**
* Check if a capture would be valid if there's something there to capture.
*
* @param x The x of the location to capture at.
* @param y The y of the location to capture at.
* @return If we can capture it.
*/
@Override
public boolean validCapture(int x, int y) {
// Not even possible.
if (!World.getTile(x, y).IsWalkable || !(x == Location.x || y == Location.y)) return false;
// Team capture.
Actor that = World.getActorAt(x, y);
if (that == null || this.Team == that.Team) return false;
// Self valid.
if (x == Location.x && y == Location.y) return true;
// Maximum range
if (Math.abs(x - Location.x) > 4 || Math.abs(y - Location.y) > 4) return false;
// Check the path.
int xd = x == Location.x ? 0 : x > Location.x ? 1 : -1;
int yd = y == Location.y ? 0 : y > Location.y ? 1 : -1;
for (int xi = Location.x + xd, yi = Location.y + yd;
!(xi == x && yi == y);
xi += xd, yi += yd) {
if (xi == x && yi == y) continue;
Tile t = World.getTile(xi, yi);
Actor a = World.getActorAt(xi, yi);
if (!t.IsWalkable || a != null) return false;
}
return true;
}