/**
* Finds max locations and lengths of rays in 8 directions
*
* @return
*/
public void findRayPaths() {
maxRangeLocs = new MapLocation[8];
rayLengths = new int[8];
for (int i = 0; i < 8; i++) { // find max range in each direction from pastr
Direction dir = dirs[i];
int rayLength = 1; // counts ray length
MapLocation nextLoc = pLoc.add(dir);
while (locationValid(nextLoc.add(dir))) { // while location is valid, expand ray
rayLength++;
nextLoc = nextLoc.add(dir);
}
maxRangeLocs[i] = nextLoc;
rayLengths[i] = rayLength;
}
}
/**
* Checks if square is void, out of map, out of tower range
*
* @param loc
* @return
*/
public boolean locationValid(MapLocation loc) {
return !(rc.senseTerrainTile(loc) == TerrainTile.VOID
|| loc.x > xmax
|| loc.y > ymax
|| loc.x < 0
|| loc.y < 0
|| loc.distanceSquaredTo(tLoc) > attackRadius);
}
public MapLocation nextTarget() {
if (currRayLength <= 3) { // switch to next direction
dirIndex = (dirIndex + 1) % 8;
currRayLength = rayLengths[dirIndex] - 1;
lastTarget = maxRangeLocs[dirIndex];
return lastTarget;
} else { // reduce ray length in current direction
lastTarget = lastTarget.add(dirs[dirIndex].opposite());
currRayLength--;
return lastTarget;
}
}
/**
* Checks if any of pastr squares are in tower range and updates pLoc to non-center pastr square
* if necessary.
*
* @return true if in range, false else
*/
public boolean pastrInRange() {
if (pLoc.distanceSquaredTo(tLoc) <= attackRadius) {
return true;
}
// check if other squares in pastr are in range
MapLocation nextPLoc = pLoc.add(pLoc.directionTo(tLoc));
while (nextPLoc.distanceSquaredTo(pLoc) <= pastrRadius) {
if (nextPLoc.distanceSquaredTo(tLoc) <= attackRadius) {
pLoc = nextPLoc;
return true;
}
}
return false;
}