02fda1fc2e
- try to use more Position instead of (x,y) - create PositionWithDpeth for its specific usage in path finding - create a XYGridITerator that walk cells from grid X then Y.
47 lines
987 B
Java
47 lines
987 B
Java
package org.artisanlogiciel.games.maze;
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public class XYGridIterator {
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final static Position stepX = new Position(1,0);
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final static Position stepY = new Position( 0,1);
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Position min;
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Position max;
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Position next;
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public XYGridIterator(Position min, Position max) {
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this.min = min;
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this.max = max;
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reset();
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}
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public void reset()
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{
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this.next = new Position(min);
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}
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public boolean hasNext()
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{
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return next != null;
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}
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public Position next()
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{
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if ( next != null)
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{
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Position current = new Position(next);
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next.doTranslate(stepX);
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if ( next.getX() >= max.getX()) {
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if (next.getY() < max.getY() - 1) {
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next.setX(min.getX()).doTranslate(stepY);
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} else {
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next = null;
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}
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}
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return current;
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}
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return null;
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}
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}
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