72 lines
1.2 KiB
Java
72 lines
1.2 KiB
Java
package org.artisanlogiciel.games.minetest;
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public class Range {
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int min;
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int max;
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public int getMin() {
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return min;
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}
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public int getMax() {
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return max;
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}
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public Range()
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{
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// invalid range, means empty interval
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min = 0;
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max = -1;
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}
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public boolean isEmpty()
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{
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return ( min > max );
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}
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boolean union(Range other)
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{
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boolean update = false;
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if ( ! other.isEmpty()) {
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update = updateBounds(other.getMin()) | updateBounds(other.getMax());
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}
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return update;
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}
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boolean updateBounds(int v)
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{
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boolean update = false;
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// special case where previous range was unset ( min > max ).
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if ( isEmpty() )
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{
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min = v;
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max = v;
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return true;
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}
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if ( v < min )
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{
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update = true;
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min = v;
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}
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if ( v > max )
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{
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update = true;
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max = v;
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}
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return update;
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}
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public int getRangeSize() {
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if (isEmpty())
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{
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return 0;
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}
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else
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{
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return max - min;
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}
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}
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}
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