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package kr.syeyoung.dungeonsguide.pathfinding;
import com.google.common.collect.Sets;
import kr.syeyoung.dungeonsguide.dungeon.roomfinder.DungeonRoom;
import net.minecraft.block.Block;
import net.minecraft.block.state.BlockState;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.Entity;
import net.minecraft.init.Blocks;
import net.minecraft.pathfinding.PathPoint;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.Vec3i;
import net.minecraft.world.pathfinder.NodeProcessor;
import java.util.Set;
public class NodeProcessorDungeonRoom extends NodeProcessor {
private DungeonRoom dungeonRoom;
private BlockPos sub;
public NodeProcessorDungeonRoom(DungeonRoom dungeonRoom) {
this.dungeonRoom = dungeonRoom;
sub = dungeonRoom.getMax().subtract(dungeonRoom.getMin());
}
@Override
public PathPoint getPathPointTo(Entity entityIn) {
return openPoint((int)entityIn.posX - dungeonRoom.getMin().getX(), (int)entityIn.posY - dungeonRoom.getMin().getY(),
(int)entityIn.posZ - dungeonRoom.getMin().getZ());
}
@Override
public PathPoint getPathPointToCoords(Entity entityIn, double x, double y, double z) {
return openPoint((int)x- dungeonRoom.getMin().getX(), (int)y - dungeonRoom.getMin().getY(),
(int)z - dungeonRoom.getMin().getZ());
}
private static final EnumFacing[] values2 = new EnumFacing[6];
static {
values2[0] = EnumFacing.DOWN;
values2[1] = EnumFacing.NORTH;
values2[2] = EnumFacing.SOUTH;
values2[3] = EnumFacing.EAST;
values2[4] = EnumFacing.WEST;
values2[5] = EnumFacing.UP;
}
@Override
public int findPathOptions(PathPoint[] pathOptions, Entity entityIn, PathPoint currentPoint, PathPoint targetPoint, float maxDistance) {
int i = 0;
for (EnumFacing ef:values2) {
Vec3i dir = ef.getDirectionVec();
int newX = currentPoint.xCoord + dir.getX();
int newY = currentPoint.yCoord + dir.getY();
int newZ = currentPoint.zCoord + dir.getZ();
if (newX < 0 || newZ < 0) continue;
if (newX > sub.getX()|| newZ > sub.getZ()) continue;
IBlockState curr = entityIn.getEntityWorld().getBlockState(dungeonRoom.getMin().add(newX, newY, newZ));
IBlockState up = entityIn.getEntityWorld().getBlockState(dungeonRoom.getMin().add(newX, newY + 1, newZ));
if (isValidBlock(curr)
&& isValidBlock(up )) {
PathPoint pt = openPoint(newX, newY, newZ);
if (pt.visited) continue;
pathOptions[i++] = pt;
continue;
}
if (curr.getBlock() == Blocks.air) {
if (up.getBlock() == Blocks.stone_slab
|| up.getBlock() == Blocks.wooden_slab
|| up.getBlock() == Blocks.stone_slab2) {
IBlockState up2 = entityIn.getEntityWorld().getBlockState(dungeonRoom.getMin().add(newX, newY -1, newZ));
if (up2.getBlock() == Blocks.stone_slab
|| up2.getBlock() == Blocks.wooden_slab
|| up2.getBlock() == Blocks.stone_slab2) {
PathPoint pt = openPoint(newX, newY, newZ);
if (pt.visited) continue;
pathOptions[i++] = pt;
continue;
}
}
}
if (dir.getY() == 0 && curr.getBlock() == Blocks.iron_bars && up.getBlock() == Blocks.air &&
entityIn.getEntityWorld().getBlockState(new BlockPos(currentPoint.xCoord, currentPoint.yCoord, currentPoint.zCoord)).getBlock() != Blocks.iron_bars) {
boolean theFlag = false;
if (dir.getZ() == 0) {
if (entityIn.getEntityWorld().getBlockState(dungeonRoom.getMin().add(newX, newY, newZ)
.add(0,0,1)).getBlock() == Blocks.air) {
theFlag = true;
} else if (entityIn.getEntityWorld().getBlockState(dungeonRoom.getMin().add(newX, newY, newZ)
.add(0,0,-1)).getBlock() == Blocks.air) {
theFlag = true;
}
} else if (dir.getX() == 0) {
if (entityIn.getEntityWorld().getBlockState(dungeonRoom.getMin().add(newX, newY, newZ)
.add(-1,0,0)).getBlock() == Blocks.air) {
theFlag = true;
} else if (entityIn.getEntityWorld().getBlockState(dungeonRoom.getMin().add(newX, newY, newZ)
.add(1,0,0)).getBlock() == Blocks.air) {
theFlag = true;
}
}
if (theFlag) {
PathPoint pt = openPoint(newX, newY, newZ);
if (pt.visited) continue;
pathOptions[i++] = pt;
continue;
}
}
}
return i;
}
public static final Set<Block> allowed = Sets.newHashSet(Blocks.air, Blocks.water, Blocks.lava, Blocks.flowing_water, Blocks.flowing_lava, Blocks.vine, Blocks.ladder
, Blocks.standing_sign, Blocks.wall_sign, Blocks.trapdoor, Blocks.iron_trapdoor, Blocks.wooden_button, Blocks.stone_button, Blocks.fire,
Blocks.torch, Blocks.rail, Blocks.golden_rail, Blocks.activator_rail, Blocks.detector_rail, Blocks.carpet, Blocks.redstone_torch);
public static final IBlockState preBuilt = Blocks.stone.getStateFromMeta(2);
public static boolean isValidBlock(IBlockState state) {
Block b = state.getBlock();
return state.equals(preBuilt) || allowed.contains(b);
}
}
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