Remove collision from water

server/game/game_server.ts

@@ -829,7 +829,7 @@ export class GameServer {
 		if (this.#entities.size === 0) {
 			return;
 		}
-		const is_solid = (x: number, y: number, z: number) => this.world.get_block_nid(x, y, z) !== AIR;
+		const is_solid = (x: number, y: number, z: number) => this.world.has_collision(x, y, z);
 
 		const active = [...this.#entities.values()].filter((entity) => this.#near_any_player(entity.x, entity.z));
 		for (const entity of active) {

server/game/world.ts

@@ -113,6 +113,11 @@ export class ServerWorld {
 		return this.#get_chunk(chunk_x, chunk_z)[index_in_chunk(x, y, z, chunk_x, chunk_z)];
 	}
 
+	// whether entities bump into the block there, water and other blocks with "collision": false don't
+	has_collision(x: number, y: number, z: number) {
+		return this.get_block_info(x, y, z)?.has_collision ?? false;
+	}
+
 	get_block_info(x: number, y: number, z: number): BlockRegistry | undefined {
 		const nid = this.get_block_nid(x, y, z);
 		return nid === AIR ? undefined : EverythingRegistry.get_by_id<BlockRegistry>("blocks", nid);