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Diffstat (limited to 'apps/plugins/sdl/progs/quake/cmd.c')
-rw-r--r--apps/plugins/sdl/progs/quake/cmd.c705
1 files changed, 705 insertions, 0 deletions
diff --git a/apps/plugins/sdl/progs/quake/cmd.c b/apps/plugins/sdl/progs/quake/cmd.c
new file mode 100644
index 0000000..0778c5e
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+++ b/apps/plugins/sdl/progs/quake/cmd.c
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+/*
+Copyright (C) 1996-1997 Id Software, Inc.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+*/
+// cmd.c -- Quake script command processing module
+
+#include "quakedef.h"
+
+void Cmd_ForwardToServer (void);
+
+#define MAX_ALIAS_NAME 32
+
+typedef struct cmdalias_s
+{
+ struct cmdalias_s *next;
+ char name[MAX_ALIAS_NAME];
+ char *value;
+} cmdalias_t;
+
+cmdalias_t *cmd_alias;
+
+int trashtest;
+int *trashspot;
+
+qboolean cmd_wait;
+
+//=============================================================================
+
+/*
+============
+Cmd_Wait_f
+
+Causes execution of the remainder of the command buffer to be delayed until
+next frame. This allows commands like:
+bind g "impulse 5 ; +attack ; wait ; -attack ; impulse 2"
+============
+*/
+void Cmd_Wait_f (void)
+{
+ cmd_wait = true;
+}
+
+/*
+=============================================================================
+
+ COMMAND BUFFER
+
+=============================================================================
+*/
+
+sizebuf_t cmd_text;
+
+/*
+============
+Cbuf_Init
+============
+*/
+void Cbuf_Init (void)
+{
+ SZ_Alloc (&cmd_text, 8192); // space for commands and script files
+}
+
+
+/*
+============
+Cbuf_AddText
+
+Adds command text at the end of the buffer
+============
+*/
+void Cbuf_AddText (char *text)
+{
+ int l;
+
+ l = Q_strlen (text);
+
+ if (cmd_text.cursize + l >= cmd_text.maxsize)
+ {
+ Con_Printf ("Cbuf_AddText: overflow\n");
+ return;
+ }
+
+ SZ_Write (&cmd_text, text, Q_strlen (text));
+}
+
+
+/*
+============
+Cbuf_InsertText
+
+Adds command text immediately after the current command
+Adds a \n to the text
+FIXME: actually change the command buffer to do less copying
+============
+*/
+void Cbuf_InsertText (char *text)
+{
+ char *temp;
+ int templen;
+
+// copy off any commands still remaining in the exec buffer
+ templen = cmd_text.cursize;
+ if (templen)
+ {
+ temp = Z_Malloc (templen);
+ Q_memcpy (temp, cmd_text.data, templen);
+ SZ_Clear (&cmd_text);
+ }
+ else
+ temp = NULL; // shut up compiler
+
+// add the entire text of the file
+ Cbuf_AddText (text);
+
+// add the copied off data
+ if (templen)
+ {
+ SZ_Write (&cmd_text, temp, templen);
+ Z_Free (temp);
+ }
+}
+
+/*
+============
+Cbuf_Execute
+============
+*/
+void Cbuf_Execute (void)
+{
+ int i;
+ char *text;
+ char line[1024];
+ int quotes;
+
+ while (cmd_text.cursize)
+ {
+// find a \n or ; line break
+ text = (char *)cmd_text.data;
+
+ quotes = 0;
+ for (i=0 ; i< cmd_text.cursize ; i++)
+ {
+ if (text[i] == '"')
+ quotes++;
+ if ( !(quotes&1) && text[i] == ';')
+ break; // don't break if inside a quoted string
+ if (text[i] == '\n')
+ break;
+ }
+
+
+ memcpy (line, text, i);
+ line[i] = 0;
+
+// delete the text from the command buffer and move remaining commands down
+// this is necessary because commands (exec, alias) can insert data at the
+// beginning of the text buffer
+
+ if (i == cmd_text.cursize)
+ cmd_text.cursize = 0;
+ else
+ {
+ i++;
+ cmd_text.cursize -= i;
+ Q_memcpy (text, text+i, cmd_text.cursize);
+ }
+
+// execute the command line
+ Cmd_ExecuteString (line, src_command);
+
+ if (cmd_wait)
+ { // skip out while text still remains in buffer, leaving it
+ // for next frame
+ cmd_wait = false;
+ break;
+ }
+ }
+}
+
+/*
+==============================================================================
+
+ SCRIPT COMMANDS
+
+==============================================================================
+*/
+
+/*
+===============
+Cmd_StuffCmds_f
+
+Adds command line parameters as script statements
+Commands lead with a +, and continue until a - or another +
+quake +prog jctest.qp +cmd amlev1
+quake -nosound +cmd amlev1
+===============
+*/
+void Cmd_StuffCmds_f (void)
+{
+ int i, j;
+ int s;
+ char *text, *build, c;
+
+ if (Cmd_Argc () != 1)
+ {
+ Con_Printf ("stuffcmds : execute command line parameters\n");
+ return;
+ }
+
+// build the combined string to parse from
+ s = 0;
+ for (i=1 ; i<com_argc ; i++)
+ {
+ if (!com_argv[i])
+ continue; // NEXTSTEP nulls out -NXHost
+ s += Q_strlen (com_argv[i]) + 1;
+ }
+ if (!s)
+ return;
+
+ text = Z_Malloc (s+1);
+ text[0] = 0;
+ for (i=1 ; i<com_argc ; i++)
+ {
+ if (!com_argv[i])
+ continue; // NEXTSTEP nulls out -NXHost
+ Q_strcat (text,com_argv[i]);
+ if (i != com_argc-1)
+ Q_strcat (text, " ");
+ }
+
+// pull out the commands
+ build = Z_Malloc (s+1);
+ build[0] = 0;
+
+ for (i=0 ; i<s-1 ; i++)
+ {
+ if (text[i] == '+')
+ {
+ i++;
+
+ for (j=i ; (text[j] != '+') && (text[j] != '-') && (text[j] != 0) ; j++)
+ ;
+
+ c = text[j];
+ text[j] = 0;
+
+ Q_strcat (build, text+i);
+ Q_strcat (build, "\n");
+ text[j] = c;
+ i = j-1;
+ }
+ }
+
+ if (build[0])
+ Cbuf_InsertText (build);
+
+ Z_Free (text);
+ Z_Free (build);
+}
+
+
+/*
+===============
+Cmd_Exec_f
+===============
+*/
+void Cmd_Exec_f (void)
+{
+ char *f;
+ int mark;
+
+ if (Cmd_Argc () != 2)
+ {
+ Con_Printf ("exec <filename> : execute a script file\n");
+ return;
+ }
+
+ mark = Hunk_LowMark ();
+ f = (char *)COM_LoadHunkFile (Cmd_Argv(1));
+ if (!f)
+ {
+ Con_Printf ("couldn't exec %s\n",Cmd_Argv(1));
+ return;
+ }
+ Con_Printf ("execing %s\n",Cmd_Argv(1));
+
+ Cbuf_InsertText (f);
+ Hunk_FreeToLowMark (mark);
+}
+
+
+/*
+===============
+Cmd_Echo_f
+
+Just prints the rest of the line to the console
+===============
+*/
+void Cmd_Echo_f (void)
+{
+ int i;
+
+ for (i=1 ; i<Cmd_Argc() ; i++)
+ Con_Printf ("%s ",Cmd_Argv(i));
+ Con_Printf ("\n");
+}
+
+/*
+===============
+Cmd_Alias_f
+
+Creates a new command that executes a command string (possibly ; seperated)
+===============
+*/
+
+char *CopyString (char *in)
+{
+ char *out;
+
+ out = Z_Malloc (strlen(in)+1);
+ strcpy (out, in);
+ return out;
+}
+
+void Cmd_Alias_f (void)
+{
+ cmdalias_t *a;
+ char cmd[1024];
+ int i, c;
+ char *s;
+
+ if (Cmd_Argc() == 1)
+ {
+ Con_Printf ("Current alias commands:\n");
+ for (a = cmd_alias ; a ; a=a->next)
+ Con_Printf ("%s : %s\n", a->name, a->value);
+ return;
+ }
+
+ s = Cmd_Argv(1);
+ if (strlen(s) >= MAX_ALIAS_NAME)
+ {
+ Con_Printf ("Alias name is too long\n");
+ return;
+ }
+
+ // if the alias allready exists, reuse it
+ for (a = cmd_alias ; a ; a=a->next)
+ {
+ if (!strcmp(s, a->name))
+ {
+ Z_Free (a->value);
+ break;
+ }
+ }
+
+ if (!a)
+ {
+ a = Z_Malloc (sizeof(cmdalias_t));
+ a->next = cmd_alias;
+ cmd_alias = a;
+ }
+ strcpy (a->name, s);
+
+// copy the rest of the command line
+ cmd[0] = 0; // start out with a null string
+ c = Cmd_Argc();
+ for (i=2 ; i< c ; i++)
+ {
+ strcat (cmd, Cmd_Argv(i));
+ if (i != c)
+ strcat (cmd, " ");
+ }
+ strcat (cmd, "\n");
+
+ a->value = CopyString (cmd);
+}
+
+/*
+=============================================================================
+
+ COMMAND EXECUTION
+
+=============================================================================
+*/
+
+typedef struct cmd_function_s
+{
+ struct cmd_function_s *next;
+ char *name;
+ xcommand_t function;
+} cmd_function_t;
+
+
+#define MAX_ARGS 80
+
+static int cmd_argc;
+static char *cmd_argv[MAX_ARGS];
+static char *cmd_null_string = "";
+static char *cmd_args = NULL;
+
+cmd_source_t cmd_source;
+
+
+static cmd_function_t *cmd_functions; // possible commands to execute
+
+/*
+============
+Cmd_Init
+============
+*/
+void Cmd_Init (void)
+{
+//
+// register our commands
+//
+ Cmd_AddCommand ("stuffcmds",Cmd_StuffCmds_f);
+ Cmd_AddCommand ("exec",Cmd_Exec_f);
+ Cmd_AddCommand ("echo",Cmd_Echo_f);
+ Cmd_AddCommand ("alias",Cmd_Alias_f);
+ Cmd_AddCommand ("cmd", Cmd_ForwardToServer);
+ Cmd_AddCommand ("wait", Cmd_Wait_f);
+}
+
+/*
+============
+Cmd_Argc
+============
+*/
+int Cmd_Argc (void)
+{
+ return cmd_argc;
+}
+
+/*
+============
+Cmd_Argv
+============
+*/
+char *Cmd_Argv (int arg)
+{
+ if ( (unsigned)arg >= cmd_argc )
+ return cmd_null_string;
+ return cmd_argv[arg];
+}
+
+/*
+============
+Cmd_Args
+============
+*/
+char *Cmd_Args (void)
+{
+ return cmd_args;
+}
+
+
+/*
+============
+Cmd_TokenizeString
+
+Parses the given string into command line tokens.
+============
+*/
+void Cmd_TokenizeString (char *text)
+{
+ int i;
+
+// clear the args from the last string
+ for (i=0 ; i<cmd_argc ; i++)
+ Z_Free (cmd_argv[i]);
+
+ cmd_argc = 0;
+ cmd_args = NULL;
+
+ while (1)
+ {
+// skip whitespace up to a /n
+ while (*text && *text <= ' ' && *text != '\n')
+ {
+ text++;
+ }
+
+ if (*text == '\n')
+ { // a newline seperates commands in the buffer
+ text++;
+ break;
+ }
+
+ if (!*text)
+ return;
+
+ if (cmd_argc == 1)
+ cmd_args = text;
+
+ text = COM_Parse (text);
+ if (!text)
+ return;
+
+ if (cmd_argc < MAX_ARGS)
+ {
+ cmd_argv[cmd_argc] = Z_Malloc (Q_strlen(com_token)+1);
+ Q_strcpy (cmd_argv[cmd_argc], com_token);
+ cmd_argc++;
+ }
+ }
+
+}
+
+
+/*
+============
+Cmd_AddCommand
+============
+*/
+void Cmd_AddCommand (char *cmd_name, xcommand_t function)
+{
+ cmd_function_t *cmd;
+
+ if (host_initialized) // because hunk allocation would get stomped
+ Sys_Error ("Cmd_AddCommand after host_initialized");
+
+// fail if the command is a variable name
+ if (Cvar_VariableString(cmd_name)[0])
+ {
+ Con_Printf ("Cmd_AddCommand: %s already defined as a var\n", cmd_name);
+ return;
+ }
+
+// fail if the command already exists
+ for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
+ {
+ if (!Q_strcmp (cmd_name, cmd->name))
+ {
+ Con_Printf ("Cmd_AddCommand: %s already defined\n", cmd_name);
+ return;
+ }
+ }
+
+ cmd = Hunk_Alloc (sizeof(cmd_function_t));
+ cmd->name = cmd_name;
+ cmd->function = function;
+ cmd->next = cmd_functions;
+ cmd_functions = cmd;
+}
+
+/*
+============
+Cmd_Exists
+============
+*/
+qboolean Cmd_Exists (char *cmd_name)
+{
+ cmd_function_t *cmd;
+
+ for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
+ {
+ if (!Q_strcmp (cmd_name,cmd->name))
+ return true;
+ }
+
+ return false;
+}
+
+
+
+/*
+============
+Cmd_CompleteCommand
+============
+*/
+char *Cmd_CompleteCommand (char *partial)
+{
+ cmd_function_t *cmd;
+ int len;
+
+ len = Q_strlen(partial);
+
+ if (!len)
+ return NULL;
+
+// check functions
+ for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
+ if (!Q_strncmp (partial,cmd->name, len))
+ return cmd->name;
+
+ return NULL;
+}
+
+/*
+============
+Cmd_ExecuteString
+
+A complete command line has been parsed, so try to execute it
+FIXME: lookupnoadd the token to speed search?
+============
+*/
+void Cmd_ExecuteString (char *text, cmd_source_t src)
+{
+ cmd_function_t *cmd;
+ cmdalias_t *a;
+
+ cmd_source = src;
+ Cmd_TokenizeString (text);
+
+// execute the command line
+ if (!Cmd_Argc())
+ return; // no tokens
+
+// check functions
+ for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
+ {
+ if (!Q_strcasecmp (cmd_argv[0],cmd->name))
+ {
+ cmd->function ();
+ return;
+ }
+ }
+
+// check alias
+ for (a=cmd_alias ; a ; a=a->next)
+ {
+ if (!Q_strcasecmp (cmd_argv[0], a->name))
+ {
+ Cbuf_InsertText (a->value);
+ return;
+ }
+ }
+
+// check cvars
+ if (!Cvar_Command ())
+ Con_Printf ("Unknown command \"%s\"\n", Cmd_Argv(0));
+
+}
+
+
+/*
+===================
+Cmd_ForwardToServer
+
+Sends the entire command line over to the server
+===================
+*/
+void Cmd_ForwardToServer (void)
+{
+ if (cls.state != ca_connected)
+ {
+ Con_Printf ("Can't \"%s\", not connected\n", Cmd_Argv(0));
+ return;
+ }
+
+ if (cls.demoplayback)
+ return; // not really connected
+
+ MSG_WriteByte (&cls.message, clc_stringcmd);
+ if (Q_strcasecmp(Cmd_Argv(0), "cmd") != 0)
+ {
+ SZ_Print (&cls.message, Cmd_Argv(0));
+ SZ_Print (&cls.message, " ");
+ }
+ if (Cmd_Argc() > 1)
+ SZ_Print (&cls.message, Cmd_Args());
+ else
+ SZ_Print (&cls.message, "\n");
+}
+
+
+/*
+================
+Cmd_CheckParm
+
+Returns the position (1 to argc-1) in the command's argument list
+where the given parameter apears, or 0 if not present
+================
+*/
+
+int Cmd_CheckParm (char *parm)
+{
+ int i;
+
+ if (!parm)
+ Sys_Error ("Cmd_CheckParm: NULL");
+
+ for (i = 1; i < Cmd_Argc (); i++)
+ if (! Q_strcasecmp (parm, Cmd_Argv (i)))
+ return i;
+
+ return 0;
+}
generated by cgit v1.1 at 2026-04-24 19:44:32 +0000