impersonate command

[blank.git] / src / shared / cli.cpp

diff --git a/src/shared/cli.cpp b/src/shared/cli.cpp
index 6942f78704ec3a887dabff21fd35df37e0a6ba51..c144d8677830281318f09585705168f0d9d3ca90 100644 (file)
--- a/src/shared/cli.cpp
+++ b/src/shared/cli.cpp
@@ -1,12 +1,15 @@
 #include "CLI.hpp"
+#include "CLIContext.hpp"
 #include "commands.hpp"
 
 #include "../io/TokenStreamReader.hpp"
 #include "../world/Entity.hpp"
 #include "../world/Player.hpp"
+#include "../world/World.hpp"
 
 #include <iostream>
 #include <sstream>
+#include <glm/gtx/io.hpp>
 
 using namespace std;
 
@@ -16,6 +19,7 @@ namespace blank {
 CLI::CLI(World &world)
 : world(world)
 , commands() {
+       AddCommand("as", new ImpersonateCommand);
        AddCommand("tp", new TeleportCommand);
 }
 
@@ -29,7 +33,7 @@ void CLI::AddCommand(const string &name, Command *cmd) {
        commands[name] = cmd;
 }
 
-void CLI::Execute(Player &player, const string &line) {
+void CLI::Execute(CLIContext &ctx, const string &line) {
        stringstream s(line);
        TokenStreamReader args(s);
        if (!args.HasMore()) {
@@ -37,44 +41,92 @@ void CLI::Execute(Player &player, const string &line) {
                return;
        }
        if (args.Peek().type != Token::IDENTIFIER) {
-               Error("I don't understand");
+               ctx.Error("I don't understand");
                return;
        }
        string name;
        args.ReadIdentifier(name);
        auto entry = commands.find(name);
        if (entry == commands.end()) {
-               Error(name + ": command not found");
+               ctx.Error(name + ": command not found");
                return;
        }
        try {
-               entry->second->Execute(*this, player, args);
+               entry->second->Execute(*this, ctx, args);
        } catch (exception &e) {
-               Error(name + ": " + e.what());
+               ctx.Error(name + ": " + e.what());
        } catch (...) {
-               Error(name + ": unknown execution error");
+               ctx.Error(name + ": unknown execution error");
        }
 }
 
-void CLI::Message(const string &msg) {
-       // TODO: display message to player
-       cout << msg << endl;
+CLI::Command::~Command() {
+
 }
 
-void CLI::Error(const string &msg) {
-       Message("CLI error: " + msg);
+
+CLIContext::CLIContext(Player *p, Entity *e)
+: original_player(p)
+, effective_player(p)
+, original_entity(e)
+, effective_entity(e) {
+       if (!e && p) {
+               original_entity = effective_entity = &p->GetEntity();
+       }
 }
 
-CLI::Command::~Command() {
+std::string CLIContext::Name() const {
+       if (HasPlayer()) return GetPlayer().Name();
+       if (HasEntity()) return GetEntity().Name();
+       return "anonymous";
+}
+
+
+void ImpersonateCommand::Execute(CLI &cli, CLIContext &ctx, TokenStreamReader &args) {
+       if (!args.HasMore()) {
+               // no argument => reset
+               ctx.Reset();
+               ctx.Broadcast(ctx.Name() + " returned to their own self");
+               return;
+       }
+       // TODO: broadcast who (real player name) impersonates who
+       string old_name = ctx.Name();
+       string name(args.GetString());
+
+       Player *p = cli.GetWorld().FindPlayer(name);
+       if (p) {
+               ctx.SetPlayer(*p);
+               ctx.SetEntity(p->GetEntity());
+               ctx.Broadcast(old_name + " now impersonating " + p->Name());
+               return;
+       }
+
+       // not a player, try an entity
+       Entity *e = cli.GetWorld().FindEntity(name);
+       if (e) {
+               ctx.SetEntity(*e);
+               ctx.Broadcast(old_name + " now impersonating " + e->Name());
+               return;
+       }
 
+       ctx.Error("no player or entity with name " + name);
 }
 
 
-void TeleportCommand::Execute(CLI &cli, Player &player, TokenStreamReader &args) {
+void TeleportCommand::Execute(CLI &, CLIContext &ctx, TokenStreamReader &args) {
+       if (!ctx.HasEntity()) {
+               ctx.Error("teleport needs entity to operate on");
+               return;
+       }
+
        glm::vec3 pos(args.GetFloat(), args.GetFloat(), args.GetFloat());
-       EntityState state = player.GetEntity().GetState();
+       EntityState state = ctx.GetEntity().GetState();
        state.pos = ExactLocation(pos).Sanitize();
-       player.GetEntity().SetState(state);
+       ctx.GetEntity().SetState(state);
+
+       stringstream msg;
+       msg << ctx.GetEntity().Name() << " teleported to " << pos;
+       ctx.Broadcast(msg.str());
 }
 
 }