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package ch.asynk.rustanddust.engine;
import java.util.Iterator;
import com.badlogic.gdx.utils.Pool;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.math.Vector3;
public class Move extends Path implements Iterable<Vector3>, Iterator
{
public enum MoveType
{
REGULAR,
SET,
ENTER,
EXIT;
}
private static final Pool<Move> movePool = new Pool<Move>()
{
@Override
protected Move newObject() {
return new Move();
}
};
public static Move get(Pawn pawn, Tile from, Tile to, Orientation orientation, Path path)
{
Move m = movePool.obtain();
m.pawn = pawn;
m.from = from;
m.to = to;
m.orientation = orientation;
if (path != null) {
m.init(path.tiles.size());
m.cost = path.cost;
m.roadMarch = path.roadMarch;
for (Tile tile : path.tiles)
m.tiles.add(tile);
} else {
m.init(0);
}
return m;
}
public static void clearPool()
{
movePool.clear();
}
public static Move getEnter(Pawn pawn, Tile to, Orientation orientation)
{
Move m = get(pawn, null, to, orientation, null);
m.type = MoveType.ENTER;
m.cost = to.costFrom(pawn, orientation);
return m;
}
public static Move getSet(Pawn pawn, Tile to, Orientation orientation)
{
Move m = get(pawn, null, to, orientation, null);
m.type = MoveType.SET;
m.cost = 0;
return m;
}
public Pawn pawn;
public Tile from;
public Tile to;
public Orientation orientation;
public MoveType type;
// iterator
private int i;
private int s;
private Tile t;
private boolean r;
private Orientation o;
private Vector3 v = new Vector3();
private Vector2 pos = new Vector2();
public Move()
{
super();
this.pawn = null;
this.from = null;
this.to = null;
this.orientation = Orientation.KEEP;
this.type = MoveType.REGULAR;
}
@Override
public void reset()
{
pawn = null;
from = null;
to = null;
orientation = Orientation.KEEP;
type = MoveType.REGULAR;
super.reset();
}
@Override
public void dispose()
{
tiles.clear();
movePool.free(this);
}
public boolean isSet()
{
return (type == MoveType.SET);
}
public boolean isEnter()
{
return (type == MoveType.ENTER);
}
public boolean isRegular()
{
return (type == MoveType.REGULAR);
}
public boolean isFinal()
{
return (type != MoveType.ENTER);
}
public int steps()
{
int steps = 0;
Tile tile = from;
Orientation o = pawn.getOrientation();
for (Tile next : tiles) {
Orientation nextO = Orientation.fromMove(tile.col, tile.row, next.col, next.row);
if (nextO != o) {
steps += 2;
o = nextO;
} else
steps += 1;
tile = next;
}
if (orientation != Orientation.fromMove(tile.col, tile.row, to.col, to.row))
steps += 2;
else
steps +=1;
return steps;
}
@Override
public String toString()
{
if (from == null)
return String.format("%s %s c:%d", to.toShort(), orientation, cost);
else
return String.format("%s->%s %s c:%d", from.toShort(), to.toShort(), orientation, cost);
}
@Override
@SuppressWarnings("unchecked")
public Iterator<Vector3> iterator()
{
this.i = 0;
this.s = tiles.size();
this.t = from;
this.r = (from == to);
this.o = pawn.getOrientation();
this.v.set(pawn.getPosition().x, pawn.getPosition().y, o.r());
return (Iterator<Vector3>) this;
}
@Override
public boolean hasNext()
{
if ((r || (i > s)) && (o == orientation))
return false;
return true;
}
@Override
public Vector3 next()
{
if (!hasNext())
throw new java.util.NoSuchElementException();
if (r || (i > s)) {
v.z = orientation.r();
o = orientation;
return v;
}
Tile nextTile;
if (i < s)
nextTile = tiles.get(i);
else
nextTile = to;
Orientation nextO = Orientation.fromMove(t.col, t.row, nextTile.col, nextTile.row);
if (nextO != o) {
v.z = nextO.r();
o = nextO;
return v;
}
pawn.getPosAt(nextTile, pos);
v.x = pos.x;
v.y = pos.y;
t = nextTile;
i += 1;
return v;
}
@Override
public void remove()
{
throw new UnsupportedOperationException();
}
}
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