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61 lines
1.3 KiB
61 lines
1.3 KiB
10 years ago
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package mightypork.gamecore.util.math.algo;
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public class Sides {
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public static final byte NW = (byte) 0b10000000;
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public static final byte N = (byte) 0b01000000;
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public static final byte NE = (byte) 0b00100000;
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public static final byte E = (byte) 0b00010000;
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public static final byte SE = (byte) 0b00001000;
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public static final byte S = (byte) 0b00000100;
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public static final byte SW = (byte) 0b00000010;
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public static final byte W = (byte) 0b00000001;
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public static final byte CARDINAL = N | S | E | W;
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public static final byte DIAGONAL = NE | NW | SE | SW;
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public static final byte NW_CORNER = W | NW | N;
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public static final byte NE_CORNER = E | NE | N;
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public static final byte SW_CORNER = W | SW | S;
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public static final byte SE_CORNER = E | SE | S;
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//@formatter:off
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public final static Step[] allSides = {
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Step.make(-1, -1),
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Step.make(0, -1),
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Step.make(1, -1),
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Step.make(1, 0),
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Step.make(1, 1),
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Step.make(0, 1),
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Step.make(-1, 1),
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Step.make(-1, 0)
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};
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public final static Step[] cardinalSides = {
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Step.make(0, -1),
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Step.make(1, 0),
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Step.make(0, 1),
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Step.make(-1, 0)
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};
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//@formatter:on
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/**
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* Get element from all sides
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*
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* @param i side index
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* @return the side coord
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*/
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public static Step get(int i)
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{
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return allSides[i];
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}
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public static byte bit(int i)
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{
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return (byte) (1 << (7 - i));
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}
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}
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