Remove collision from water

client/level/client_level.ts

@@ -254,6 +254,12 @@ export class ClientLevel {
 		return chunk.blocks[index] & ID_MASK;
 	}
 
+	// whether entities bump into the block there. unloaded chunks count as solid, so nothing falls out of the world
+	has_collision(x: number, y: number, z: number) {
+		const block = this.get_block(x, y, z);
+		return block === VOID || (block !== AIR && (this.#blocks[block]?.has_collision ?? true));
+	}
+
 	// only changes what this client shows, drops and everything else happen on the server
 	break_block(x: number, y: number, z: number) {
 		const block_chunk_x = Math.floor(x / CHUNK_SIZE);