From af47c0dc21a85450424ac7c444dba59dac5eec82 Mon Sep 17 00:00:00 2001
From: Avi Weinstock <aweinstock314@gmail.com>
Date: Sat, 17 Apr 2021 13:44:22 -0400
Subject: [PATCH] Added `/server_physics` admin command.

---
 CHANGELOG.md      |  1 +
 common/src/cmd.rs | 11 +++++++++++
 server/src/cmd.rs | 35 ++++++++++++++++++++++++++++++++++-
 3 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6eb859a105..6b4b8c95b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -34,6 +34,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added disconnectall CLI command
 - One handed weapons can now be used and found in the world
 - Players can now opt-in to server-authoritiative physics in gameplay settings.
+- Added `/server_physics` admin command.
 
 
 ### Changed
diff --git a/common/src/cmd.rs b/common/src/cmd.rs
index 7628e24f9b..452213418a 100644
--- a/common/src/cmd.rs
+++ b/common/src/cmd.rs
@@ -82,6 +82,7 @@ pub enum ChatCommand {
     RevokeBuildAll,
     Safezone,
     Say,
+    ServerPhysics,
     SetMotd,
     Site,
     SkillPoint,
@@ -144,6 +145,7 @@ pub static CHAT_COMMANDS: &[ChatCommand] = &[
     ChatCommand::RevokeBuildAll,
     ChatCommand::Safezone,
     ChatCommand::Say,
+    ChatCommand::ServerPhysics,
     ChatCommand::SetMotd,
     ChatCommand::Site,
     ChatCommand::SkillPoint,
@@ -466,6 +468,14 @@ impl ChatCommand {
                 "Send messages to everyone within shouting distance",
                 NoAdmin,
             ),
+            ChatCommand::ServerPhysics => cmd(
+                vec![
+                    Any("username", Required),
+                    Boolean("enabled", "true".to_string(), Optional),
+                ],
+                "Set/unset server-authoritative physics for an account",
+                Admin,
+            ),
             ChatCommand::SetMotd => {
                 cmd(vec![Message(Optional)], "Set the server description", Admin)
             },
@@ -580,6 +590,7 @@ impl ChatCommand {
             ChatCommand::RevokeBuildAll => "revoke_build_all",
             ChatCommand::Safezone => "safezone",
             ChatCommand::Say => "say",
+            ChatCommand::ServerPhysics => "server_physics",
             ChatCommand::SetMotd => "set_motd",
             ChatCommand::Site => "site",
             ChatCommand::SkillPoint => "skill_point",
diff --git a/server/src/cmd.rs b/server/src/cmd.rs
index 29603283b7..f2805f1b47 100644
--- a/server/src/cmd.rs
+++ b/server/src/cmd.rs
@@ -24,7 +24,7 @@ use common::{
     effect::Effect,
     event::{EventBus, ServerEvent},
     npc::{self, get_npc_name},
-    resources::TimeOfDay,
+    resources::{PlayerPhysicsSettings, TimeOfDay},
     terrain::{Block, BlockKind, SpriteKind, TerrainChunkSize},
     uid::Uid,
     vol::RectVolSize,
@@ -137,6 +137,7 @@ fn get_handler(cmd: &ChatCommand) -> CommandHandler {
         ChatCommand::RevokeBuildAll => handle_revoke_build_all,
         ChatCommand::Safezone => handle_safezone,
         ChatCommand::Say => handle_say,
+        ChatCommand::ServerPhysics => handle_server_physics,
         ChatCommand::SetMotd => handle_set_motd,
         ChatCommand::Site => handle_site,
         ChatCommand::SkillPoint => handle_skill_point,
@@ -2477,3 +2478,35 @@ fn handle_unban(
         Err(action.help_string())
     }
 }
+
+fn handle_server_physics(
+    server: &mut Server,
+    client: EcsEntity,
+    _target: EcsEntity,
+    args: String,
+    action: &ChatCommand,
+) -> CmdResult<()> {
+    if let (Some(username), enabled_opt) = scan_fmt_some!(&args, &action.arg_fmt(), String, bool) {
+        let uuid = find_username(server, &username)?;
+        let server_force = enabled_opt.unwrap_or(true);
+
+        let mut player_physics_settings =
+            server.state.ecs().write_resource::<PlayerPhysicsSettings>();
+        let entry = player_physics_settings.settings.entry(uuid).or_default();
+        entry.server_force = server_force;
+
+        server.notify_client(
+            client,
+            ServerGeneral::server_msg(
+                ChatType::CommandInfo,
+                format!(
+                    "Updated physics settings for {} ({}): {:?}",
+                    username, uuid, entry
+                ),
+            ),
+        );
+        Ok(())
+    } else {
+        Err(action.help_string())
+    }
+}