package net.minecraft.client.renderer.chunk;

import java.util.BitSet;
import java.util.Set;

import net.minecraft.util.EnumFacing;

/**
 * +
 * This portion of EaglercraftX contains deobfuscated Minecraft 1.8 source code.
 * 
 * Minecraft 1.8.8 bytecode is (c) 2015 Mojang AB. "Do not distribute!"
 * Mod Coder Pack v9.18 deobfuscation configs are (c) Copyright by the MCP Team
 * 
 * EaglercraftX 1.8 patch files (c) 2022-2024 lax1dude, hoosiertransfer,
 * ayunami2000. All Rights Reserved.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 */
public class SetVisibility {
	private static final int COUNT_FACES = EnumFacing._VALUES.length;
	private final BitSet bitSet;

	private long bitField = 0;

	public SetVisibility() {
		this.bitSet = new BitSet(COUNT_FACES * COUNT_FACES);
	}

	public void setManyVisible(Set<EnumFacing> parSet) {
		EnumFacing[] facings = EnumFacing._VALUES;
		for (int i = 0; i < facings.length; ++i) {
			for (int j = 0; j < facings.length; ++j) {
				this.setVisible(facings[i], facings[j], true);
			}
		}

	}

	public void setVisible(EnumFacing fromFace, EnumFacing toFace, boolean isVisible) {
		long shiftBy;

		shiftBy = fromFace.ordinal() + toFace.ordinal() * COUNT_FACES;
		this.bitField = (this.bitField & ~(1L << shiftBy)) | ((isVisible ? 1L : 0L) << shiftBy);

		shiftBy = toFace.ordinal() + fromFace.ordinal() * COUNT_FACES;
		this.bitField = (this.bitField & ~(1L << shiftBy)) | ((isVisible ? 1L : 0L) << shiftBy);
	}

	// public void setVisible(EnumFacing facing, EnumFacing facing2, boolean
	// parFlag) {
	// this.bitSet.set(facing.ordinal() + facing2.ordinal() * COUNT_FACES, parFlag);
	// this.bitSet.set(facing2.ordinal() + facing.ordinal() * COUNT_FACES, parFlag);
	// }

	public void setAllVisible(boolean visible) {
		this.bitField = visible ? 0xFFFFFFFFFL : 0L;
	}

	// public void setAllVisible(boolean visible) {
	// this.bitSet.set(0, this.bitSet.size(), visible);
	// }

	public boolean isVisible(EnumFacing fromFace, EnumFacing toFace) {
		boolean ret = ((1L << (fromFace.ordinal() + toFace.ordinal() * COUNT_FACES)) & this.bitField) != 0;
		return ret;
	}

	public boolean vfix$anyPathToFace(EnumFacing targetFace) {
		long mask = 0b111111 << (targetFace.ordinal() * COUNT_FACES);
		return (mask & this.bitField) > 0;
	}

	// public boolean isVisible(EnumFacing facing, EnumFacing facing2) {
	// return this.bitSet.get(facing.ordinal() + facing2.ordinal() * COUNT_FACES);
	// }

	public String toString() {
		StringBuilder stringbuilder = new StringBuilder();
		stringbuilder.append(' ');

		EnumFacing[] facings = EnumFacing._VALUES;
		for (int i = 0; i < facings.length; ++i) {
			stringbuilder.append(' ').append(facings[i].toString().toUpperCase().charAt(0));
		}

		stringbuilder.append('\n');

		for (int i = 0; i < facings.length; ++i) {
			EnumFacing enumfacing2 = facings[i];
			stringbuilder.append(enumfacing2.toString().toUpperCase().charAt(0));

			for (int j = 0; j < facings.length; ++j) {
				if (enumfacing2 == facings[j]) {
					stringbuilder.append("  ");
				} else {
					boolean flag = this.isVisible(enumfacing2, facings[j]);
					stringbuilder.append(' ').append((char) (flag ? 'Y' : 'n'));
				}
			}

			stringbuilder.append('\n');
		}

		return stringbuilder.toString();
	}
}