81 lines
2.6 KiB
Java
81 lines
2.6 KiB
Java
package buildcraft.transport;
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import java.util.LinkedList;
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import net.minecraftforge.common.util.ForgeDirection;
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import buildcraft.api.transport.IPipe;
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import buildcraft.api.transport.IPipeTile;
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import buildcraft.api.transport.pluggable.PipePluggable;
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import buildcraft.transport.pipes.events.PipeEventItem;
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import buildcraft.transport.pipes.events.PipeEventPriority;
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import buildcraft.transport.pluggable.LensPluggable;
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public class LensFilterHandler {
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@PipeEventPriority(priority = -100)
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public void eventHandler(PipeEventItem.FindDest event) {
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IPipeTile container = event.pipe.getTile();
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LinkedList<ForgeDirection> correctColored = new LinkedList<ForgeDirection>();
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LinkedList<ForgeDirection> notColored = new LinkedList<ForgeDirection>();
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boolean encounteredColor = false;
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int myColor = event.item.color == null ? -1 : event.item.color.ordinal();
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for (ForgeDirection dir : event.destinations) {
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boolean hasFilter = false;
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boolean hasLens = false;
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int sideColor = -1;
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int sideLensColor = -1;
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// Get the side's color
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// (1/2) From this pipe's outpost
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PipePluggable pluggable = container.getPipePluggable(dir);
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if (pluggable != null && pluggable instanceof LensPluggable) {
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if (((LensPluggable) pluggable).isFilter) {
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hasFilter = true;
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sideColor = ((LensPluggable) pluggable).color;
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} else {
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hasLens = true;
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sideLensColor = ((LensPluggable) pluggable).color;
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}
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}
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// (2/2) From the other pipe's outpost
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IPipe otherPipe = container.getNeighborPipe(dir);
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if (otherPipe != null && otherPipe.getTile() != null) {
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IPipeTile otherContainer = otherPipe.getTile();
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pluggable = otherContainer.getPipePluggable(dir.getOpposite());
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if (pluggable != null && pluggable instanceof LensPluggable && ((LensPluggable) pluggable).isFilter) {
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int otherColor = ((LensPluggable) pluggable).color;
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if (hasFilter && otherColor != sideColor) {
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// Filter colors conflict - the side is unpassable
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continue;
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} else if (hasLens) {
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// The closer lens color differs from the further away filter color - the side is unpassable OR treated as colorless
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if (sideLensColor == otherColor) {
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hasFilter = false;
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sideColor = -1;
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} else {
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continue;
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}
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} else {
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hasFilter = true;
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sideColor = otherColor;
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}
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}
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}
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if (hasFilter) {
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if (myColor == sideColor) {
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encounteredColor = true;
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correctColored.add(dir);
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}
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} else {
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notColored.add(dir);
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}
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}
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event.destinations.clear();
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event.destinations.addAll(encounteredColor ? correctColored : notColored);
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}
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}
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