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package rosegoldaddons.utils;
import net.minecraft.block.Block;
import net.minecraft.block.state.IBlockState;
import net.minecraft.client.Minecraft;
import net.minecraft.util.*;
import rosegoldaddons.Main;
import java.util.ArrayList;
public class BlockUtils {
public static Vec3 bp = null;
public static ArrayList<Vec3> whereToMineBlock(BlockPos pos) {
Vec3 center = new Vec3(pos.getX() + 0.5, pos.getY() + 0.5, pos.getZ() + 0.5);
ArrayList<Vec3> vec3s = new ArrayList<>();
MovingObjectPosition position = rayTrace(center, 4.5F);
if (position != null && position.getBlockPos().equals(pos))
//return position.hitVec;
vec3s.add(position.hitVec);
for (int x = 1; x < 5; x++) {
for (int y = 1; y < 5; y++) {
for (int z = 1; z < 5; z++) {
Vec3 vec = new Vec3(pos.getX() + x / 4.0D - 0.125D, pos.getY() + y / 4.0D - 0.125D, pos.getZ() + z / 4.0D - 0.125D);
position = rayTrace(vec, 4.5F);
if (position != null) {
bp = position.hitVec;
if (position.getBlockPos().equals(pos))
//return position.hitVec;
vec3s.add(position.hitVec);
}
}
}
}
return vec3s;
}
public static MovingObjectPosition rayTrace(Vec3 target, float range) {
Vec3 vec3 = Main.mc.thePlayer.getPositionEyes(1f);
Vec3 vec31 = getLook(target);
return fastRayTrace(vec3, vec3.addVector(vec31.xCoord * (double)range, vec31.yCoord * (double)range, vec31.zCoord * (double)range));
}
public static Vec3 getLook(Vec3 vec) {
double diffX = vec.xCoord - Main.mc.thePlayer.posX;
double diffY = vec.yCoord - (Main.mc.thePlayer.posY + (double)Main.mc.thePlayer.getEyeHeight());
double diffZ = vec.zCoord - Main.mc.thePlayer.posZ;
double dist = Math.sqrt(diffX * diffX + diffZ * diffZ);
return getVectorForRotation((float)(-(Math.atan2(diffY, dist) * 180.0 / Math.PI)), (float)(Math.atan2(diffZ, diffX) * 180.0 / Math.PI - 90.0));
}
public static Vec3 getVectorForRotation(float pitch, float yaw) {
double f2 = -Math.cos(-pitch * ((float)Math.PI / 180));
return new Vec3(Math.sin(-yaw * ((float)Math.PI / 180) - (float)Math.PI) * f2, Math.sin(-pitch * ((float)Math.PI / 180)), Math.cos(-yaw * ((float)Math.PI / 180) - (float)Math.PI) * f2);
}
private static MovingObjectPosition fastRayTrace(Vec3 vec31, Vec3 vec32) {
MovingObjectPosition movingobjectposition;
int j1;
int i1;
int i = (int) Math.floor(vec32.xCoord);
int j = (int) Math.floor(vec32.yCoord);
int k = (int) Math.floor(vec32.zCoord);
int l = (int) Math.floor(vec31.xCoord);
BlockPos blockpos = new BlockPos(l, i1 = (int) Math.floor(vec31.yCoord), j1 = (int) Math.floor(vec31.zCoord));
IBlockState iblockstate = Main.mc.theWorld.getBlockState(blockpos);
Block block = iblockstate.getBlock();
if (block.canCollideCheck(iblockstate, false) && (movingobjectposition = block.collisionRayTrace(Main.mc.theWorld, blockpos, vec31, vec32)) != null) {
return movingobjectposition;
}
MovingObjectPosition movingobjectposition2 = null;
int k1 = 200;
while (k1-- >= 0) {
EnumFacing enumfacing;
if (l == i && i1 == j && j1 == k) {
return movingobjectposition2;
}
boolean flag2 = true;
boolean flag = true;
boolean flag1 = true;
double d0 = 999.0;
double d1 = 999.0;
double d2 = 999.0;
if (i > l) {
d0 = (double)l + 1.0;
} else if (i < l) {
d0 = (double)l + 0.0;
} else {
flag2 = false;
}
if (j > i1) {
d1 = (double)i1 + 1.0;
} else if (j < i1) {
d1 = (double)i1 + 0.0;
} else {
flag = false;
}
if (k > j1) {
d2 = (double)j1 + 1.0;
} else if (k < j1) {
d2 = (double)j1 + 0.0;
} else {
flag1 = false;
}
double d3 = 999.0;
double d4 = 999.0;
double d5 = 999.0;
double d6 = vec32.xCoord - vec31.xCoord;
double d7 = vec32.yCoord - vec31.yCoord;
double d8 = vec32.zCoord - vec31.zCoord;
if (flag2) {
d3 = (d0 - vec31.xCoord) / d6;
}
if (flag) {
d4 = (d1 - vec31.yCoord) / d7;
}
if (flag1) {
d5 = (d2 - vec31.zCoord) / d8;
}
if (d3 == -0.0) {
d3 = -1.0E-4;
}
if (d4 == -0.0) {
d4 = -1.0E-4;
}
if (d5 == -0.0) {
d5 = -1.0E-4;
}
if (d3 < d4 && d3 < d5) {
enumfacing = i > l ? EnumFacing.WEST : EnumFacing.EAST;
vec31 = new Vec3(d0, vec31.yCoord + d7 * d3, vec31.zCoord + d8 * d3);
} else if (d4 < d5) {
enumfacing = j > i1 ? EnumFacing.DOWN : EnumFacing.UP;
vec31 = new Vec3(vec31.xCoord + d6 * d4, d1, vec31.zCoord + d8 * d4);
} else {
enumfacing = k > j1 ? EnumFacing.NORTH : EnumFacing.SOUTH;
vec31 = new Vec3(vec31.xCoord + d6 * d5, vec31.yCoord + d7 * d5, d2);
}
l = MathHelper.floor_double((double)vec31.xCoord) - (enumfacing == EnumFacing.EAST ? 1 : 0);
i1 = MathHelper.floor_double((double)vec31.yCoord) - (enumfacing == EnumFacing.UP ? 1 : 0);
j1 = MathHelper.floor_double((double)vec31.zCoord) - (enumfacing == EnumFacing.SOUTH ? 1 : 0);
blockpos = new BlockPos(l, i1, j1);
IBlockState iblockstate1 = Main.mc.theWorld.getBlockState(blockpos);
Block block1 = iblockstate1.getBlock();
if (block1.canCollideCheck(iblockstate1, false)) {
MovingObjectPosition movingobjectposition1 = block1.collisionRayTrace(Main.mc.theWorld, blockpos, vec31, vec32);
if (movingobjectposition1 == null) continue;
return movingobjectposition1;
}
movingobjectposition2 = new MovingObjectPosition(MovingObjectPosition.MovingObjectType.MISS, vec31, enumfacing, blockpos);
}
return movingobjectposition2;
}
}
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