/**
* When placing a tower on the field, this checks if the path needs to be updated for each enemy
*
* @param current
* @param inMiddleOfWave
*/
private void updateAffectedEnemies(TMXTile current, boolean inMiddleOfWave) {
List<Enemy> enemies = currentWave.getEnemies();
Path p;
float pX;
float pY;
outer:
for (Enemy enemy : enemies) {
if (enemy == null) continue;
p = enemy.getPath();
for (int i = 0; i < p.getCoordinatesX().length; i++) {
pX = p.getCoordinatesX()[i];
pY = p.getCoordinatesY()[i];
TMXTile tile = this.tmxLayer.getTMXTileAt(pX - enemy.getOffsetX(), pY - enemy.getOffsetY());
if (current.equals(tile)) {
updateEnemyPaths(inMiddleOfWave, enemy);
if (!inMiddleOfWave) break outer;
else break;
}
}
}
if (inMiddleOfWave) {
Enemy dummy = new Enemy();
dummy.setUserData("dummy");
Path path = aStarHelper.getPath(dummy);
if (path == null) {
removeCurrentTower(true);
}
}
}
/**
* This just makes sure the drag tower isn't set on the start tile, end tile, or any tile already
* occupied by another tower. There is still the fact that a player can place a tower that will
* block the enemies in.
*
* <p>I am taking a reactive approach to this scenario since it is just too costly to recalculate
* the enemy paths for each tile the dragtower is placed.
*
* @param currentTile
* @return
*/
private boolean inLegitimatePosition(TMXTile currentTile) {
return !(currentTile.equals(endTile)
|| currentTile.equals(startTile)
|| blockedTileList.contains(currentTile));
}