refactor temrinal input for more performace

src/Settings/Settings.ts

@@ -45,6 +45,11 @@ interface IDefaultSettings {
    */
   MaxPortCapacity: number;
 
+  /**
+   * Limit the number of entries in the terminal.
+   */
+  MaxTerminalCapacity: number;
+
   /**
    * Whether the player should be asked to confirm purchasing each and every augmentation.
    */
@@ -104,6 +109,7 @@ const defaultSettings: IDefaultSettings = {
   Locale: "en",
   MaxLogCapacity: 50,
   MaxPortCapacity: 50,
+  MaxTerminalCapacity: 200,
   SuppressBuyAugmentationConfirmation: false,
   SuppressFactionInvites: false,
   SuppressHospitalizationPopup: false,
@@ -125,6 +131,7 @@ export const Settings: ISettings & ISelfInitializer & ISelfLoading = {
   Locale: "en",
   MaxLogCapacity: defaultSettings.MaxLogCapacity,
   MaxPortCapacity: defaultSettings.MaxPortCapacity,
+  MaxTerminalCapacity: defaultSettings.MaxTerminalCapacity,
   OwnedAugmentationsOrder: OwnedAugmentationsOrderSetting.AcquirementTime,
   PurchaseAugmentationsOrder: PurchaseAugmentationsOrderSetting.Default,
   SuppressBuyAugmentationConfirmation: defaultSettings.SuppressBuyAugmentationConfirmation,

src/Terminal/Terminal.ts

@@ -23,6 +23,7 @@ import { TerminalHelpText } from "./HelpText";
 import { GetServerByHostname, getServer, getServerOnNetwork } from "../Server/ServerHelpers";
 import { ParseCommand, ParseCommands } from "./Parser";
 import { SpecialServerIps, SpecialServerNames } from "../Server/SpecialServerIps";
+import { Settings } from "../Settings/Settings";
 import { createProgressBarText } from "../../utils/helpers/createProgressBarText";
 import {
   calculateHackingChance,
@@ -101,6 +102,13 @@ export class Terminal implements ITerminal {
     return false;
   }
 
+  append(item: Output | Link): void {
+    this.outputHistory.push(item);
+    if (this.outputHistory.length > Settings.MaxTerminalCapacity) {
+      this.outputHistory.slice(this.outputHistory.length - Settings.MaxTerminalCapacity);
+    }
+  }
+
   print(s: string, config?: any): void {
     this.outputHistory.push(new Output(s, "primary"));
     this.hasChanges = true;

src/Terminal/ui/TerminalInput.tsx

@@ -0,0 +1,362 @@
+import React, { useState, useEffect, useRef } from "react";
+import Typography from "@material-ui/core/Typography";
+import { makeStyles, createStyles, Theme } from "@material-ui/core/styles";
+import TextField from "@material-ui/core/TextField";
+import { KEY } from "../../../utils/helpers/keyCodes";
+import { ITerminal } from "../ITerminal";
+import { IEngine } from "../../IEngine";
+import { IPlayer } from "../../PersonObjects/IPlayer";
+import { determineAllPossibilitiesForTabCompletion } from "../determineAllPossibilitiesForTabCompletion";
+import { tabCompletion } from "../tabCompletion";
+import { FconfSettings } from "../../Fconf/FconfSettings";
+
+const useStyles = makeStyles((theme: Theme) =>
+  createStyles({
+    textfield: {
+      margin: theme.spacing(0),
+      width: "100%",
+    },
+    input: {
+      backgroundColor: "#000",
+    },
+    nopadding: {
+      padding: theme.spacing(0),
+    },
+    preformatted: {
+      whiteSpace: "pre-wrap",
+      margin: theme.spacing(0),
+    },
+    list: {
+      padding: theme.spacing(0),
+      height: "100%",
+    },
+  }),
+);
+
+interface IProps {
+  terminal: ITerminal;
+  engine: IEngine;
+  player: IPlayer;
+}
+
+export function TerminalInput({ terminal, engine, player }: IProps): React.ReactElement {
+  const terminalInput = useRef<HTMLInputElement>(null);
+
+  const [value, setValue] = useState("");
+  const [possibilities, setPossibilities] = useState<string[]>([]);
+  const classes = useStyles();
+
+  function handleValueChange(event: React.ChangeEvent<HTMLInputElement>): void {
+    setValue(event.target.value);
+    setPossibilities([]);
+  }
+
+  function modifyInput(mod: string): void {
+    const ref = terminalInput.current;
+    if (!ref) return;
+    const inputLength = value.length;
+    const start = ref.selectionStart;
+    if (start === null) return;
+    const inputText = ref.value;
+
+    switch (mod.toLowerCase()) {
+      case "backspace":
+        if (start > 0 && start <= inputLength + 1) {
+          setValue(inputText.substr(0, start - 1) + inputText.substr(start));
+        }
+        break;
+      case "deletewordbefore": // Delete rest of word before the cursor
+        for (let delStart = start - 1; delStart > 0; --delStart) {
+          if (inputText.charAt(delStart) === " ") {
+            setValue(inputText.substr(0, delStart) + inputText.substr(start));
+            return;
+          }
+        }
+        break;
+      case "deletewordafter": // Delete rest of word after the cursor
+        for (let delStart = start + 1; delStart <= value.length + 1; ++delStart) {
+          if (inputText.charAt(delStart) === " ") {
+            setValue(inputText.substr(0, start) + inputText.substr(delStart));
+            return;
+          }
+        }
+        break;
+      case "clearafter": // Deletes everything after cursor
+        break;
+      case "clearbefore:": // Deleetes everything before cursor
+        break;
+    }
+  }
+
+  function moveTextCursor(loc: string): void {
+    const ref = terminalInput.current;
+    if (!ref) return;
+    const inputLength = value.length;
+    const start = ref.selectionStart;
+    if (start === null) return;
+
+    switch (loc.toLowerCase()) {
+      case "home":
+        ref.setSelectionRange(0, 0);
+        break;
+      case "end":
+        ref.setSelectionRange(inputLength, inputLength);
+        break;
+      case "prevchar":
+        if (start > 0) {
+          ref.setSelectionRange(start - 1, start - 1);
+        }
+        break;
+      case "prevword":
+        for (let i = start - 2; i >= 0; --i) {
+          if (ref.value.charAt(i) === " ") {
+            ref.setSelectionRange(i + 1, i + 1);
+            return;
+          }
+        }
+        ref.setSelectionRange(0, 0);
+        break;
+      case "nextchar":
+        ref.setSelectionRange(start + 1, start + 1);
+        break;
+      case "nextword":
+        for (let i = start + 1; i <= inputLength; ++i) {
+          if (ref.value.charAt(i) === " ") {
+            ref.setSelectionRange(i, i);
+            return;
+          }
+        }
+        ref.setSelectionRange(inputLength, inputLength);
+        break;
+      default:
+        console.warn("Invalid loc argument in Terminal.moveTextCursor()");
+        break;
+    }
+  }
+
+  // Catch all key inputs and redirect them to the terminal.
+  useEffect(() => {
+    function keyDown(this: Document, event: KeyboardEvent): void {
+      if (terminal.contractOpen) return;
+      const ref = terminalInput.current;
+      if (ref) ref.focus();
+
+      // Cancel action
+      if (event.keyCode === KEY.C && event.ctrlKey) {
+        terminal.finishAction(player, true);
+      }
+    }
+    document.addEventListener("keydown", keyDown);
+    return () => document.removeEventListener("keydown", keyDown);
+  });
+
+  function onKeyDown(event: React.KeyboardEvent<HTMLInputElement>): void {
+    // Run command.
+    if (event.keyCode === KEY.ENTER && value !== "") {
+      event.preventDefault();
+      terminal.print(`[${player.getCurrentServer().hostname} ~${terminal.cwd()}]> ${value}`);
+      terminal.executeCommands(engine, player, value);
+      setValue("");
+      return;
+    }
+
+    // Autocomplete
+    if (event.keyCode === KEY.TAB && value !== "") {
+      event.preventDefault();
+
+      let copy = value;
+      const semiColonIndex = copy.lastIndexOf(";");
+      if (semiColonIndex !== -1) {
+        copy = copy.slice(semiColonIndex + 1);
+      }
+
+      copy = copy.trim();
+      copy = copy.replace(/\s\s+/g, " ");
+
+      const commandArray = copy.split(" ");
+      let index = commandArray.length - 2;
+      if (index < -1) {
+        index = 0;
+      }
+      const allPos = determineAllPossibilitiesForTabCompletion(player, copy, index, terminal.cwd());
+      if (allPos.length == 0) {
+        return;
+      }
+
+      let arg = "";
+      let command = "";
+      if (commandArray.length == 0) {
+        return;
+      }
+      if (commandArray.length == 1) {
+        command = commandArray[0];
+      } else if (commandArray.length == 2) {
+        command = commandArray[0];
+        arg = commandArray[1];
+      } else if (commandArray.length == 3) {
+        command = commandArray[0] + " " + commandArray[1];
+        arg = commandArray[2];
+      } else {
+        arg = commandArray.pop() + "";
+        command = commandArray.join(" ");
+      }
+
+      const newValue = tabCompletion(command, arg, allPos, value);
+      if (typeof newValue === "string" && newValue !== "") {
+        setValue(newValue);
+      }
+      if (Array.isArray(newValue)) {
+        setPossibilities(newValue);
+      }
+    }
+
+    // Clear screen.
+    if (event.keyCode === KEY.L && event.ctrlKey) {
+      event.preventDefault();
+      terminal.clear();
+    }
+
+    // Select previous command.
+    if (
+      event.keyCode === KEY.UPARROW ||
+      (FconfSettings.ENABLE_BASH_HOTKEYS && event.keyCode === KEY.P && event.ctrlKey)
+    ) {
+      if (FconfSettings.ENABLE_BASH_HOTKEYS) {
+        event.preventDefault();
+      }
+      const i = terminal.commandHistoryIndex;
+      const len = terminal.commandHistory.length;
+
+      if (len == 0) {
+        return;
+      }
+      if (i < 0 || i > len) {
+        terminal.commandHistoryIndex = len;
+      }
+
+      if (i != 0) {
+        --terminal.commandHistoryIndex;
+      }
+      const prevCommand = terminal.commandHistory[terminal.commandHistoryIndex];
+      setValue(prevCommand);
+      const ref = terminalInput.current;
+      if (ref) {
+        setTimeout(function () {
+          ref.selectionStart = ref.selectionEnd = 10000;
+        }, 10);
+      }
+    }
+
+    // Select next command
+    if (
+      event.keyCode === KEY.DOWNARROW ||
+      (FconfSettings.ENABLE_BASH_HOTKEYS && event.keyCode === KEY.M && event.ctrlKey)
+    ) {
+      if (FconfSettings.ENABLE_BASH_HOTKEYS) {
+        event.preventDefault();
+      }
+      const i = terminal.commandHistoryIndex;
+      const len = terminal.commandHistory.length;
+
+      if (len == 0) {
+        return;
+      }
+      if (i < 0 || i > len) {
+        terminal.commandHistoryIndex = len;
+      }
+
+      // Latest command, put nothing
+      if (i == len || i == len - 1) {
+        terminal.commandHistoryIndex = len;
+        setValue("");
+      } else {
+        ++terminal.commandHistoryIndex;
+        const prevCommand = terminal.commandHistory[terminal.commandHistoryIndex];
+        setValue(prevCommand);
+      }
+    }
+
+    // Extra Bash Emulation Hotkeys, must be enabled through .fconf
+    if (FconfSettings.ENABLE_BASH_HOTKEYS) {
+      if (event.keyCode === KEY.A && event.ctrlKey) {
+        event.preventDefault();
+        moveTextCursor("home");
+      }
+
+      if (event.keyCode === KEY.E && event.ctrlKey) {
+        event.preventDefault();
+        moveTextCursor("end");
+      }
+
+      if (event.keyCode === KEY.B && event.ctrlKey) {
+        event.preventDefault();
+        moveTextCursor("prevchar");
+      }
+
+      if (event.keyCode === KEY.B && event.altKey) {
+        event.preventDefault();
+        moveTextCursor("prevword");
+      }
+
+      if (event.keyCode === KEY.F && event.ctrlKey) {
+        event.preventDefault();
+        moveTextCursor("nextchar");
+      }
+
+      if (event.keyCode === KEY.F && event.altKey) {
+        event.preventDefault();
+        moveTextCursor("nextword");
+      }
+
+      if ((event.keyCode === KEY.H || event.keyCode === KEY.D) && event.ctrlKey) {
+        modifyInput("backspace");
+        event.preventDefault();
+      }
+
+      // TODO AFTER THIS:
+      // alt + d deletes word after cursor
+      // ^w deletes word before cursor
+      // ^k clears line after cursor
+      // ^u clears line before cursor
+    }
+  }
+
+  return (
+    <>
+      {possibilities.length > 0 && (
+        <>
+          <Typography classes={{ root: classes.preformatted }} color={"primary"} paragraph={false}>
+            Possible autocomplete candidate:
+          </Typography>
+          <Typography classes={{ root: classes.preformatted }} color={"primary"} paragraph={false}>
+            {possibilities.join(" ")}
+          </Typography>
+        </>
+      )}
+      <TextField
+        color={terminal.action === null ? "primary" : "secondary"}
+        autoFocus
+        disabled={terminal.action !== null}
+        autoComplete="off"
+        classes={{ root: classes.textfield }}
+        value={value}
+        onChange={handleValueChange}
+        inputRef={terminalInput}
+        InputProps={{
+          // for players to hook in
+          id: "terminal-input",
+          className: classes.input,
+          startAdornment: (
+            <>
+              <Typography color={terminal.action === null ? "primary" : "secondary"}>
+                [{player.getCurrentServer().hostname}&nbsp;~{terminal.cwd()}]&gt;&nbsp;
+              </Typography>
+            </>
+          ),
+          spellCheck: false,
+          onKeyDown: onKeyDown,
+        }}
+      ></TextField>
+    </>
+  );
+}

src/Terminal/ui/TerminalRoot.tsx

@@ -1,19 +1,14 @@
-import React, { useState, useEffect, useRef } from "react";
+import React, { useState, useEffect } from "react";
 import Typography from "@material-ui/core/Typography";
 import List from "@material-ui/core/List";
 import ListItem from "@material-ui/core/ListItem";
 import { Link as MuiLink } from "@material-ui/core";
 import { makeStyles, createStyles, Theme } from "@material-ui/core/styles";
-import TextField from "@material-ui/core/TextField";
 import Box from "@material-ui/core/Box";
-import { KEY } from "../../../utils/helpers/keyCodes";
-import { ITerminal, Output, Link, TTimer } from "../ITerminal";
+import { ITerminal, Output, Link } from "../ITerminal";
 import { IEngine } from "../../IEngine";
 import { IPlayer } from "../../PersonObjects/IPlayer";
-import { determineAllPossibilitiesForTabCompletion } from "../determineAllPossibilitiesForTabCompletion";
-import { tabCompletion } from "../tabCompletion";
-import { FconfSettings } from "../../Fconf/FconfSettings";
-import { createProgressBarText } from "../../../utils/helpers/createProgressBarText";
+import { TerminalInput } from "./TerminalInput";
 
 interface IActionTimerProps {
   terminal: ITerminal;
@@ -29,24 +24,16 @@ function ActionTimer({ terminal }: IActionTimerProps): React.ReactElement {
 
 const useStyles = makeStyles((theme: Theme) =>
   createStyles({
-    textfield: {
-      margin: 0,
-      width: "100%",
-    },
-    input: {
-      backgroundColor: "#000",
-    },
     nopadding: {
-      padding: 0,
+      padding: theme.spacing(0),
     },
     preformatted: {
       whiteSpace: "pre-wrap",
-      margin: 0,
+      margin: theme.spacing(0),
     },
     list: {
-      padding: 0,
+      padding: theme.spacing(0),
       height: "100%",
-      overflowY: "scroll",
     },
   }),
 );
@@ -58,7 +45,6 @@ interface IProps {
 }
 
 export function TerminalRoot({ terminal, engine, player }: IProps): React.ReactElement {
-  const terminalInput = useRef<HTMLInputElement>(null);
   const setRerender = useState(false)[1];
   function rerender(): void {
     setRerender((old) => !old);
@@ -71,286 +57,7 @@ export function TerminalRoot({ terminal, engine, player }: IProps): React.ReactE
     return () => clearInterval(id);
   }, []);
 
-  const [value, setValue] = useState("");
-  const [possibilities, setPossibilities] = useState<string[]>([]);
   const classes = useStyles();
-
-  function handleValueChange(event: React.ChangeEvent<HTMLInputElement>): void {
-    setValue(event.target.value);
-    setPossibilities([]);
-  }
-
-  function modifyInput(mod: string): void {
-    const ref = terminalInput.current;
-    if (!ref) return;
-    const inputLength = value.length;
-    const start = ref.selectionStart;
-    if (start === null) return;
-    const inputText = ref.value;
-
-    switch (mod.toLowerCase()) {
-      case "backspace":
-        if (start > 0 && start <= inputLength + 1) {
-          setValue(inputText.substr(0, start - 1) + inputText.substr(start));
-        }
-        break;
-      case "deletewordbefore": // Delete rest of word before the cursor
-        for (var delStart = start - 1; delStart > 0; --delStart) {
-          if (inputText.charAt(delStart) === " ") {
-            setValue(inputText.substr(0, delStart) + inputText.substr(start));
-            return;
-          }
-        }
-        break;
-      case "deletewordafter": // Delete rest of word after the cursor
-        for (var delStart = start + 1; delStart <= value.length + 1; ++delStart) {
-          if (inputText.charAt(delStart) === " ") {
-            setValue(inputText.substr(0, start) + inputText.substr(delStart));
-            return;
-          }
-        }
-        break;
-      case "clearafter": // Deletes everything after cursor
-        break;
-      case "clearbefore:": // Deleetes everything before cursor
-        break;
-    }
-  }
-
-  function moveTextCursor(loc: string) {
-    const ref = terminalInput.current;
-    if (!ref) return;
-    const inputLength = value.length;
-    const start = ref.selectionStart;
-    if (start === null) return;
-
-    switch (loc.toLowerCase()) {
-      case "home":
-        ref.setSelectionRange(0, 0);
-        break;
-      case "end":
-        ref.setSelectionRange(inputLength, inputLength);
-        break;
-      case "prevchar":
-        if (start > 0) {
-          ref.setSelectionRange(start - 1, start - 1);
-        }
-        break;
-      case "prevword":
-        for (let i = start - 2; i >= 0; --i) {
-          if (ref.value.charAt(i) === " ") {
-            ref.setSelectionRange(i + 1, i + 1);
-            return;
-          }
-        }
-        ref.setSelectionRange(0, 0);
-        break;
-      case "nextchar":
-        ref.setSelectionRange(start + 1, start + 1);
-        break;
-      case "nextword":
-        for (let i = start + 1; i <= inputLength; ++i) {
-          if (ref.value.charAt(i) === " ") {
-            ref.setSelectionRange(i, i);
-            return;
-          }
-        }
-        ref.setSelectionRange(inputLength, inputLength);
-        break;
-      default:
-        console.warn("Invalid loc argument in Terminal.moveTextCursor()");
-        break;
-    }
-  }
-
-  // Catch all key inputs and redirect them to the terminal.
-  useEffect(() => {
-    function keyDown(this: Document, event: KeyboardEvent): void {
-      if (terminal.contractOpen) return;
-      const ref = terminalInput.current;
-      if (ref) ref.focus();
-
-      // Cancel action
-      if (event.keyCode === KEY.C && event.ctrlKey) {
-        terminal.finishAction(player, true);
-      }
-    }
-    document.addEventListener("keydown", keyDown);
-    return () => document.removeEventListener("keydown", keyDown);
-  });
-
-  function onKeyDown(event: React.KeyboardEvent<HTMLInputElement>): void {
-    // Run command.
-    if (event.keyCode === KEY.ENTER && value !== "") {
-      event.preventDefault();
-      terminal.print(`[${player.getCurrentServer().hostname} ~${terminal.cwd()}]> ${value}`);
-      terminal.executeCommands(engine, player, value);
-      setValue("");
-      return;
-    }
-
-    // Autocomplete
-    if (event.keyCode === KEY.TAB && value !== "") {
-      event.preventDefault();
-
-      let copy = value;
-      const semiColonIndex = copy.lastIndexOf(";");
-      if (semiColonIndex !== -1) {
-        copy = copy.slice(semiColonIndex + 1);
-      }
-
-      copy = copy.trim();
-      copy = copy.replace(/\s\s+/g, " ");
-
-      const commandArray = copy.split(" ");
-      let index = commandArray.length - 2;
-      if (index < -1) {
-        index = 0;
-      }
-      const allPos = determineAllPossibilitiesForTabCompletion(player, copy, index, terminal.cwd());
-      if (allPos.length == 0) {
-        return;
-      }
-
-      let arg = "";
-      let command = "";
-      if (commandArray.length == 0) {
-        return;
-      }
-      if (commandArray.length == 1) {
-        command = commandArray[0];
-      } else if (commandArray.length == 2) {
-        command = commandArray[0];
-        arg = commandArray[1];
-      } else if (commandArray.length == 3) {
-        command = commandArray[0] + " " + commandArray[1];
-        arg = commandArray[2];
-      } else {
-        arg = commandArray.pop() + "";
-        command = commandArray.join(" ");
-      }
-
-      const newValue = tabCompletion(command, arg, allPos, value);
-      if (typeof newValue === "string" && newValue !== "") {
-        setValue(newValue);
-      }
-      if (Array.isArray(newValue)) {
-        setPossibilities(newValue);
-      }
-    }
-
-    // Clear screen.
-    if (event.keyCode === KEY.L && event.ctrlKey) {
-      event.preventDefault();
-      terminal.clear();
-      rerender();
-    }
-
-    // Select previous command.
-    if (
-      event.keyCode === KEY.UPARROW ||
-      (FconfSettings.ENABLE_BASH_HOTKEYS && event.keyCode === KEY.P && event.ctrlKey)
-    ) {
-      if (FconfSettings.ENABLE_BASH_HOTKEYS) {
-        event.preventDefault();
-      }
-      const i = terminal.commandHistoryIndex;
-      const len = terminal.commandHistory.length;
-
-      if (len == 0) {
-        return;
-      }
-      if (i < 0 || i > len) {
-        terminal.commandHistoryIndex = len;
-      }
-
-      if (i != 0) {
-        --terminal.commandHistoryIndex;
-      }
-      const prevCommand = terminal.commandHistory[terminal.commandHistoryIndex];
-      setValue(prevCommand);
-      const ref = terminalInput.current;
-      if (ref) {
-        setTimeout(function () {
-          ref.selectionStart = ref.selectionEnd = 10000;
-        }, 10);
-      }
-    }
-
-    // Select next command
-    if (
-      event.keyCode === KEY.DOWNARROW ||
-      (FconfSettings.ENABLE_BASH_HOTKEYS && event.keyCode === KEY.M && event.ctrlKey)
-    ) {
-      if (FconfSettings.ENABLE_BASH_HOTKEYS) {
-        event.preventDefault();
-      }
-      const i = terminal.commandHistoryIndex;
-      const len = terminal.commandHistory.length;
-
-      if (len == 0) {
-        return;
-      }
-      if (i < 0 || i > len) {
-        terminal.commandHistoryIndex = len;
-      }
-
-      // Latest command, put nothing
-      if (i == len || i == len - 1) {
-        terminal.commandHistoryIndex = len;
-        setValue("");
-      } else {
-        ++terminal.commandHistoryIndex;
-        const prevCommand = terminal.commandHistory[terminal.commandHistoryIndex];
-        setValue(prevCommand);
-      }
-    }
-
-    // Extra Bash Emulation Hotkeys, must be enabled through .fconf
-    if (FconfSettings.ENABLE_BASH_HOTKEYS) {
-      if (event.keyCode === KEY.A && event.ctrlKey) {
-        event.preventDefault();
-        moveTextCursor("home");
-      }
-
-      if (event.keyCode === KEY.E && event.ctrlKey) {
-        event.preventDefault();
-        moveTextCursor("end");
-      }
-
-      if (event.keyCode === KEY.B && event.ctrlKey) {
-        event.preventDefault();
-        moveTextCursor("prevchar");
-      }
-
-      if (event.keyCode === KEY.B && event.altKey) {
-        event.preventDefault();
-        moveTextCursor("prevword");
-      }
-
-      if (event.keyCode === KEY.F && event.ctrlKey) {
-        event.preventDefault();
-        moveTextCursor("nextchar");
-      }
-
-      if (event.keyCode === KEY.F && event.altKey) {
-        event.preventDefault();
-        moveTextCursor("nextword");
-      }
-
-      if ((event.keyCode === KEY.H || event.keyCode === KEY.D) && event.ctrlKey) {
-        modifyInput("backspace");
-        event.preventDefault();
-      }
-
-      // TODO AFTER THIS:
-      // alt + d deletes word after cursor
-      // ^w deletes word before cursor
-      // ^k clears line after cursor
-      // ^u clears line before cursor
-    }
-  }
-
   return (
     <Box position="fixed" bottom="0" width="100%" px={1}>
       <List classes={{ root: classes.list }}>
@@ -378,41 +85,8 @@ export function TerminalRoot({ terminal, engine, player }: IProps): React.ReactE
             );
         })}
       </List>
-      {possibilities.length > 0 && (
-        <>
-          <Typography classes={{ root: classes.preformatted }} color={"primary"} paragraph={false}>
-            Possible autocomplete candidate:
-          </Typography>
-          <Typography classes={{ root: classes.preformatted }} color={"primary"} paragraph={false}>
-            {possibilities.join(" ")}
-          </Typography>
-        </>
-      )}
       {terminal.action !== null && <ActionTimer terminal={terminal} />}
-      <TextField
-        color={terminal.action === null ? "primary" : "secondary"}
-        autoFocus
-        disabled={terminal.action !== null}
-        autoComplete="off"
-        classes={{ root: classes.textfield }}
-        value={value}
-        onChange={handleValueChange}
-        inputRef={terminalInput}
-        InputProps={{
-          // for players to hook in
-          id: "terminal-input",
-          className: classes.input,
-          startAdornment: (
-            <>
-              <Typography color={terminal.action === null ? "primary" : "secondary"}>
-                [{player.getCurrentServer().hostname}&nbsp;~{terminal.cwd()}]&gt;&nbsp;
-              </Typography>
-            </>
-          ),
-          spellCheck: false,
-          onKeyDown: onKeyDown,
-        }}
-      ></TextField>
+      <TerminalInput player={player} engine={engine} terminal={terminal} />
     </Box>
   );
 }

src/ui/React/GameOptionsRoot.tsx

@@ -50,6 +50,8 @@ export function GameOptionsRoot(props: IProps): React.ReactElement {
   const [execTime, setExecTime] = useState(Settings.CodeInstructionRunTime);
   const [logSize, setLogSize] = useState(Settings.MaxLogCapacity);
   const [portSize, setPortSize] = useState(Settings.MaxPortCapacity);
+  const [terminalSize, setTerminalSize] = useState(Settings.MaxTerminalCapacity);
+
   const [autosaveInterval, setAutosaveInterval] = useState(Settings.AutosaveInterval);
 
   const [suppressMessages, setSuppressMessages] = useState(Settings.SuppressMessages);
@@ -86,6 +88,11 @@ export function GameOptionsRoot(props: IProps): React.ReactElement {
     Settings.MaxPortCapacity = newValue as number;
   }
 
+  function handleTerminalSizeChange(event: any, newValue: number | number[]): void {
+    setTerminalSize(newValue as number);
+    Settings.MaxTerminalCapacity = newValue as number;
+  }
+
   function handleAutosaveIntervalChange(event: any, newValue: number | number[]): void {
     setAutosaveInterval(newValue as number);
     Settings.AutosaveInterval = newValue as number;
@@ -209,6 +216,27 @@ export function GameOptionsRoot(props: IProps): React.ReactElement {
                 valueLabelDisplay="auto"
               />
             </ListItem>
+            <ListItem>
+              <Tooltip
+                title={
+                  <Typography>
+                    The maximum number of entries that can be written to a the terminal. Setting this too high can cause
+                    the game to use a lot of memory.
+                  </Typography>
+                }
+              >
+                <Typography>Terminal capacity</Typography>
+              </Tooltip>
+              <Slider
+                value={terminalSize}
+                onChange={handleTerminalSizeChange}
+                step={50}
+                min={50}
+                max={500}
+                valueLabelDisplay="auto"
+                marks
+              />
+            </ListItem>
             <ListItem>
               <Tooltip
                 title={