GabrielTofvesson/SpigotInvTweaks
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Remove direct references to NMS in ghost-click implementation

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This commit is contained in:
Gabriel Tofvesson 2021-06-20 18:40:56 +02:00
parent 3a0adad1f0
commit 382b2370ea
1 changed files with 45 additions and 13 deletions
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58
src/dev/w1zzrd/invtweaks/listener/GhostClickListener.java
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@ -1,11 +1,6 @@
package dev.w1zzrd.invtweaks.listener;
import dev.w1zzrd.invtweaks.InvTweaksPlugin;
import net.minecraft.core.BlockPosition;
import net.minecraft.core.EnumDirection;
import net.minecraft.world.EnumHand;
import net.minecraft.world.phys.MovingObjectPositionBlock;
import net.minecraft.world.phys.Vec3D;
import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.block.Block;
@ -15,6 +10,7 @@ import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerInteractEntityEvent;
import org.bukkit.inventory.EquipmentSlot;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
@ -22,7 +18,6 @@ import java.lang.reflect.Method;
public class GhostClickListener implements Listener {
@EventHandler(priority = EventPriority.LOWEST)
public void onEntityClick(final PlayerInteractEntityEvent clickEvent) {
if (clickEvent.getPlayer().getInventory().getItemInMainHand().getType() == Material.AIR &&
clickEvent.getPlayer().getInventory().getItemInOffHand().getType() == Material.AIR &&
clickEvent.getHand() == EquipmentSlot.HAND) {
@ -59,26 +54,63 @@ public class GhostClickListener implements Listener {
}
entity.setAccessible(true);
final BlockPosition pos = new BlockPosition(b.getX(), b.getY(), b.getZ());
final Class<?> enumHand = interact.getParameterTypes()[2];
final Field enumHandA = enumHand.getDeclaredField("a");
enumHandA.setAccessible(true);
final Class<?> movingObjectPositionBlock = interact.getParameterTypes()[3];
final Method mopb_a = findDeclaredMethod(movingObjectPositionBlock, "a", 3);
if (mopb_a == null) {
Bukkit.getLogger().warning(InvTweaksPlugin.LOG_PLUGIN_NAME + " Cannot find movingObjectPositionBlock function: ghost click will not function!");
return;
}
mopb_a.setAccessible(true);
final Constructor<?> newVec3D = mopb_a.getParameterTypes()[0].getConstructor(double.class, double.class, double.class);
newVec3D.setAccessible(true);
final Field enumDirection = findDeclaredField(mopb_a.getParameterTypes()[1], "e");
if (enumDirection == null) {
Bukkit.getLogger().warning(InvTweaksPlugin.LOG_PLUGIN_NAME + " Cannot find EnumDirection value 'e': ghost click will not function!");
return;
}
enumDirection.setAccessible(true);
final Constructor<?> newBlockPosition = mopb_a.getParameterTypes()[2].getDeclaredConstructor(int.class, int.class, int.class);
newBlockPosition.setAccessible(true);
interact.invoke(
nmsBlock,
world.get(b),
entity.get(clickEvent.getPlayer()),
EnumHand.a,
MovingObjectPositionBlock.a(
new Vec3D(clickEvent.getPlayer().getLocation().getX(), clickEvent.getPlayer().getLocation().getY(), clickEvent.getPlayer().getLocation().getZ()),
EnumDirection.e,
pos
enumHandA.get(null),
mopb_a.invoke(
null,
newVec3D.newInstance(
clickEvent.getPlayer().getLocation().getX(),
clickEvent.getPlayer().getLocation().getY(),
clickEvent.getPlayer().getLocation().getZ()
),
enumDirection.get(null),
newBlockPosition.newInstance(b.getX(), b.getY(), b.getZ())
)
);
} catch (IllegalAccessException | InvocationTargetException e) {
} catch (IllegalAccessException | InvocationTargetException | NoSuchFieldException | NoSuchMethodException | InstantiationException e) {
e.printStackTrace();
}
}
}
}
private static Method findDeclaredMethod(final Class<?> in, final String name, final int paramLen) {
for (final Method check : in.getDeclaredMethods())
if (check.getParameterTypes().length == paramLen && check.getName().equals(name))
return check;
return null;
}
private static Method findDeclaredMethod(Class<?> start, final String name) {
do {
for (final Method check : start.getDeclaredMethods())