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Deflect arrows off surfaces

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This commit is contained in:
nossr50
2023-12-23 16:28:18 -08:00
parent 9360e147ac
commit 1799d455b7
2 changed files with 23 additions and 19 deletions
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1
Changelog.txt
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@@ -1,4 +1,5 @@
Version 2.2.000
TODO: Cleanup new arrow metadatas
TODO: SQL DB update
TODO: SQL unit tests
TODO: com/gmail/nossr50/database/FlatFileDatabaseManager.java:109 reporting data entries that need correction on each launch

41
src/main/java/com/gmail/nossr50/listeners/EntityListener.java
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@@ -30,6 +30,7 @@ import com.gmail.nossr50.worldguard.WorldGuardUtils;
import org.bukkit.*;
import org.bukkit.attribute.Attribute;
import org.bukkit.block.Block;
import org.bukkit.block.BlockFace;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.*;
import org.bukkit.event.Cancellable;
@@ -1115,7 +1116,7 @@ public class EntityListener implements Listener {
if (WorldBlacklist.isWorldBlacklisted(event.getEntity().getWorld()))
return;
if(event.getEntity() instanceof Arrow originalArrow && event.getHitBlock() != null) {
if(event.getEntity() instanceof Arrow originalArrow && event.getHitBlock() != null && event.getHitBlockFace() != null) {
if (originalArrow.getShooter() instanceof Player) {
// Avoid infinite spawning of arrows
if (originalArrow.hasMetadata(MetadataConstants.METADATA_KEY_SPAWNED_ARROW)) {
@@ -1123,34 +1124,36 @@ public class EntityListener implements Listener {
}
// Spawn a new arrow shooting in a random direction
spawnArrow(originalArrow, originalArrow.getLocation());
spawnArrow(originalArrow, originalArrow.getLocation());
spawnArrow(originalArrow, originalArrow.getLocation());
spawnArrow(originalArrow, originalArrow.getLocation());
spawnArrow(originalArrow, originalArrow.getLocation());
spawnArrow(originalArrow, originalArrow.getLocation());
spawnArrow(originalArrow, originalArrow.getLocation());
spawnArrow(originalArrow, originalArrow.getLocation());
spawnArrow(originalArrow, originalArrow.getLocation());
spawnArrow(originalArrow, originalArrow.getLocation());
spawnArrow(originalArrow, originalArrow.getLocation());
spawnArrow(originalArrow, originalArrow.getLocation(), getNormal(event.getHitBlockFace()));
}
}
}
private void spawnArrow(Arrow originalArrow, Location origin) {
private Vector getNormal(BlockFace blockFace) {
return switch (blockFace) {
case UP -> new Vector(0, 1, 0);
case DOWN -> new Vector(0, -1, 0);
case NORTH -> new Vector(0, 0, -1);
case SOUTH -> new Vector(0, 0, 1);
case EAST -> new Vector(1, 0, 0);
case WEST -> new Vector(-1, 0, 0);
default -> new Vector(0, 0, 0);
};
}
private void spawnArrow(Arrow originalArrow, Location origin, Vector normal) {
// TODO: Add an event for this for plugins to hook into
// Spawn a new arrow shooting in a random direction
ProjectileSource originalArrowShooter = originalArrow.getShooter();
Vector incomingDirection = originalArrow.getVelocity();
Vector reflectedDirection = incomingDirection.subtract(normal.multiply(2 * incomingDirection.dot(normal)));
// Spawn new arrow with the reflected direction
Arrow arrow = originalArrow.getWorld().spawnArrow(origin,
new Vector(
// TODO: Spawn arrow away from surface
Math.random() * 2 - 1,
Math.random() * 2 - 1,
Math.random() * 2 - 1), 1, 1);
reflectedDirection, 1, 1);
arrow.setShooter(originalArrowShooter);
arrow.setMetadata(MetadataConstants.METADATA_KEY_SPAWNED_ARROW,
new FixedMetadataValue(pluginRef, originalArrowShooter));
// TODO: This metadata needs to get cleaned up at some point
arrow.setMetadata(MetadataConstants.METADATA_KEY_BOW_TYPE,
new FixedMetadataValue(pluginRef, originalArrow.getMetadata(
MetadataConstants.METADATA_KEY_BOW_TYPE).get(0)));