private double calcHorizontalLength() {
double length = 0.0;
// Count the amount of horizontal tracks
final BlockFace[] toCheck;
if (this.instruction == BlockFace.SELF) {
toCheck = FaceUtil.getFaces(this.railDirection);
} else {
toCheck = new BlockFace[] {this.instruction};
}
for (BlockFace face : toCheck) {
int tlength = 0;
// Get the type of rail required
BlockFace checkface = face;
if (checkface == BlockFace.NORTH) checkface = BlockFace.SOUTH;
if (checkface == BlockFace.EAST) checkface = BlockFace.WEST;
Block b = this.railsBlock;
for (int i = 0; i < 20; i++) {
// Next until invalid
b = b.getRelative(face);
Rails rr = BlockUtil.getRails(b);
if (rr == null || rr.getDirection() != checkface) {
break;
}
tlength++;
}
// Update the length
if (tlength > length) {
length = tlength;
}
}
return length;
}
private double calcDiagonalLength() {
double length = 0.0;
// Count the amount of zig-zagging curved tracks
final BlockFace[] toCheck;
if (this.instruction == BlockFace.SELF) {
toCheck =
new BlockFace[] {
FaceUtil.rotate(this.railDirection, -2), FaceUtil.rotate(this.railDirection, 2)
};
} else {
toCheck = new BlockFace[] {this.instruction};
}
for (BlockFace direction : toCheck) {
double tlength = 0.0;
// Find out the starting offset
final BlockFace[] dirs = FaceUtil.getFaces(direction);
BlockFace[] railDirs = FaceUtil.getFaces(this.railDirection);
BlockFace railDirection = this.railDirection;
Block b = this.railsBlock;
for (int i = 0; i < 20; i++) {
// Invert the direction
railDirection = railDirection.getOppositeFace();
railDirs[0] = railDirs[0].getOppositeFace();
railDirs[1] = railDirs[1].getOppositeFace();
// Obtain the new offset
final BlockFace offset;
if (LogicUtil.contains(railDirs[0], dirs)) {
offset = railDirs[0];
} else {
offset = railDirs[1];
}
// Check if the new block is the expected curve direction
b = b.getRelative(offset);
Rails rr = BlockUtil.getRails(b);
if (rr == null || rr.getDirection() != railDirection) {
break;
}
tlength += MathUtil.HALFROOTOFTWO;
}
// Update the length
if (tlength > length) {
length = tlength;
}
}
return length;
}
@SuppressWarnings("rawtypes")
public static MinecartMember getAt(World world, ChunkCoordinates coord, boolean checkmoving) {
net.minecraft.server.Chunk chunk = WorldUtil.getChunk(world, coord.x >> 4, coord.z >> 4);
if (chunk != null) {
MinecartMember mm;
MinecartMember result = null;
for (List list : chunk.entitySlices) {
for (Object e : list) {
if (e instanceof MinecartMember) {
mm = (MinecartMember) e;
if (mm.getBlockX() != coord.x) continue;
if (mm.getBlockY() != coord.y) continue;
if (mm.getBlockZ() != coord.z) continue;
result = mm;
if (result.isHeadingTo(coord)) return result;
}
}
}
if (result == null && checkmoving) {
Block b = world.getWorld().getBlockAt(coord.x, coord.y, coord.z);
int id = b.getTypeId();
// get the two connected rails to check
if (BlockUtil.isRails(id)) {
BlockFace[] possible = FaceUtil.getFaces(BlockUtil.getRails(b).getDirection());
MinecartMember mm1 = getAt(Util.getRailsBlock(b.getRelative(possible[0])), false);
MinecartMember mm2 = getAt(Util.getRailsBlock(b.getRelative(possible[1])), false);
if (mm1 != null && mm2 != null && mm1.group == mm2.group) {
Location loc = b.getLocation();
return mm1.distance(loc) < mm2.distance(loc) ? mm1 : mm2;
} else if (isHeadingTo(mm1, coord)) {
return mm1;
} else if (isHeadingTo(mm2, coord)) {
return mm2;
} else {
return null;
}
} else if (Util.isPressurePlate(id)) {
// check all directions
MinecartMember mm1 = getAt(Util.getRailsBlock(b.getRelative(BlockFace.NORTH)), false);
MinecartMember mm2 = getAt(Util.getRailsBlock(b.getRelative(BlockFace.SOUTH)), false);
MinecartMember mm3 = getAt(Util.getRailsBlock(b.getRelative(BlockFace.EAST)), false);
MinecartMember mm4 = getAt(Util.getRailsBlock(b.getRelative(BlockFace.WEST)), false);
if (mm1 != null && mm2 != null && mm1.group == mm2.group) {
Location loc = b.getLocation();
return mm1.distance(loc) < mm2.distance(loc) ? mm1 : mm2;
} else if (mm3 != null && mm4 != null && mm3.group == mm4.group) {
Location loc = b.getLocation();
return mm3.distance(loc) < mm4.distance(loc) ? mm3 : mm4;
} else if (isHeadingTo(mm1, coord)) {
return mm1;
} else if (isHeadingTo(mm2, coord)) {
return mm2;
} else if (isHeadingTo(mm3, coord)) {
return mm3;
} else if (isHeadingTo(mm4, coord)) {
return mm4;
} else {
return null;
}
}
}
return result;
}
return null;
}