(svn r7655) [cbh] - Fix: [YAPF] another assert (on opposite cbh when it contained choice). Now it is possible to reach choice when exiting wormhole. So the wormhole cost must be taken into consideration when starting new YAPF node.
/* $Id$ */
#include "stdafx.h"
#include "openttd.h"
#include "table/strings.h"
#include "functions.h"
#include "window.h"
#include "gui.h"
#include "gfx.h"
#include "player.h"
#include "variables.h"
#include "string.h"
#include <stdarg.h>
#include <string.h>
#include "console.h"
#include "network.h"
#include "network_data.h"
#include "network_server.h"
#define ICON_BUFFER 79
#define ICON_HISTORY_SIZE 20
#define ICON_LINE_HEIGHT 12
#define ICON_RIGHT_BORDERWIDTH 10
#define ICON_BOTTOM_BORDERWIDTH 12
#define ICON_MAX_ALIAS_LINES 40
#define ICON_TOKEN_COUNT 20
// ** main console ** //
static char *_iconsole_buffer[ICON_BUFFER + 1];
static uint16 _iconsole_cbuffer[ICON_BUFFER + 1];
static Textbuf _iconsole_cmdline;
// ** stdlib ** //
byte _stdlib_developer = 1;
bool _stdlib_con_developer = false;
FILE *_iconsole_output_file;
// ** main console cmd buffer
static char *_iconsole_history[ICON_HISTORY_SIZE];
static byte _iconsole_historypos;
/* *************** */
/* end of header */
/* *************** */
static void IConsoleClearCommand(void)
{
memset(_iconsole_cmdline.buf, 0, ICON_CMDLN_SIZE);
_iconsole_cmdline.length = 0;
_iconsole_cmdline.width = 0;
_iconsole_cmdline.caretpos = 0;
_iconsole_cmdline.caretxoffs = 0;
SetWindowDirty(FindWindowById(WC_CONSOLE, 0));
}
static inline void IConsoleResetHistoryPos(void) {_iconsole_historypos = ICON_HISTORY_SIZE - 1;}
static void IConsoleHistoryAdd(const char *cmd);
static void IConsoleHistoryNavigate(int direction);
// ** console window ** //
static void IConsoleWndProc(Window *w, WindowEvent *e)
{
static byte iconsole_scroll = ICON_BUFFER;
switch (e->event) {
case WE_PAINT: {
int i = iconsole_scroll;
int max = (w->height / ICON_LINE_HEIGHT) - 1;
int delta = 0;
GfxFillRect(w->left, w->top, w->width, w->height - 1, 0);
while ((i > 0) && (i > iconsole_scroll - max) && (_iconsole_buffer[i] != NULL)) {
DoDrawString(_iconsole_buffer[i], 5,
w->height - (iconsole_scroll + 2 - i) * ICON_LINE_HEIGHT, _iconsole_cbuffer[i]);
i--;
}
/* If the text is longer than the window, don't show the starting ']' */
delta = w->width - 10 - _iconsole_cmdline.width - ICON_RIGHT_BORDERWIDTH;
if (delta > 0) {
DoDrawString("]", 5, w->height - ICON_LINE_HEIGHT, _icolour_cmd);
delta = 0;
}
DoDrawString(_iconsole_cmdline.buf, 10 + delta, w->height - ICON_LINE_HEIGHT, _icolour_cmd);
if (_iconsole_cmdline.caret)
DoDrawString("_", 10 + delta + _iconsole_cmdline.caretxoffs, w->height - ICON_LINE_HEIGHT, 12);
break;
}
case WE_MOUSELOOP:
if (HandleCaret(&_iconsole_cmdline))
SetWindowDirty(w);
break;
case WE_DESTROY:
_iconsole_mode = ICONSOLE_CLOSED;
break;
case WE_KEYPRESS:
e->we.keypress.cont = false;
switch (e->we.keypress.keycode) {
case WKC_UP:
IConsoleHistoryNavigate(+1);
SetWindowDirty(w);
break;
case WKC_DOWN:
IConsoleHistoryNavigate(-1);
SetWindowDirty(w);
break;
case WKC_SHIFT | WKC_PAGEUP:
if (iconsole_scroll - (w->height / ICON_LINE_HEIGHT) - 1 < 0) {
iconsole_scroll = 0;
} else {
iconsole_scroll -= (w->height / ICON_LINE_HEIGHT) - 1;
}
SetWindowDirty(w);
break;
case WKC_SHIFT | WKC_PAGEDOWN:
if (iconsole_scroll + (w->height / ICON_LINE_HEIGHT) - 1 > ICON_BUFFER) {
iconsole_scroll = ICON_BUFFER;
} else {
iconsole_scroll += (w->height / ICON_LINE_HEIGHT) - 1;
}
SetWindowDirty(w);
break;
case WKC_SHIFT | WKC_UP:
if (iconsole_scroll <= 0) {
iconsole_scroll = 0;
} else {
--iconsole_scroll;
}
SetWindowDirty(w);
break;
case WKC_SHIFT | WKC_DOWN:
if (iconsole_scroll >= ICON_BUFFER) {
iconsole_scroll = ICON_BUFFER;
} else {
++iconsole_scroll;
}
SetWindowDirty(w);
break;
case WKC_BACKQUOTE:
IConsoleSwitch();
break;
case WKC_RETURN: case WKC_NUM_ENTER:
IConsolePrintF(_icolour_cmd, "] %s", _iconsole_cmdline.buf);
IConsoleHistoryAdd(_iconsole_cmdline.buf);
IConsoleCmdExec(_iconsole_cmdline.buf);
IConsoleClearCommand();
break;
case WKC_CTRL | WKC_RETURN:
_iconsole_mode = (_iconsole_mode == ICONSOLE_FULL) ? ICONSOLE_OPENED : ICONSOLE_FULL;
IConsoleResize(w);
MarkWholeScreenDirty();
break;
case (WKC_CTRL | 'V'):
if (InsertTextBufferClipboard(&_iconsole_cmdline)) {
IConsoleResetHistoryPos();
SetWindowDirty(w);
}
break;
case (WKC_CTRL | 'L'):
IConsoleCmdExec("clear");
break;
case (WKC_CTRL | 'U'):
DeleteTextBufferAll(&_iconsole_cmdline);
SetWindowDirty(w);
break;
case WKC_BACKSPACE: case WKC_DELETE:
if (DeleteTextBufferChar(&_iconsole_cmdline, e->we.keypress.keycode)) {
IConsoleResetHistoryPos();
SetWindowDirty(w);
}
break;
case WKC_LEFT: case WKC_RIGHT: case WKC_END: case WKC_HOME:
if (MoveTextBufferPos(&_iconsole_cmdline, e->we.keypress.keycode)) {
IConsoleResetHistoryPos();
SetWindowDirty(w);
}
break;
default:
if (IsValidChar(e->we.keypress.key, CS_ALPHANUMERAL)) {
iconsole_scroll = ICON_BUFFER;
InsertTextBufferChar(&_iconsole_cmdline, e->we.keypress.key);
IConsoleResetHistoryPos();
SetWindowDirty(w);
} else {
e->we.keypress.cont = true;
}
break;
}
}
}
static const Widget _iconsole_window_widgets[] = {
{WIDGETS_END}
};
static const WindowDesc _iconsole_window_desc = {
0, 0, 2, 2,
WC_CONSOLE, 0,
WDF_STD_TOOLTIPS | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,
_iconsole_window_widgets,
IConsoleWndProc,
};
void IConsoleInit(void)
{
extern const char _openttd_revision[];
_iconsole_output_file = NULL;
_icolour_def = 1;
_icolour_err = 3;
_icolour_warn = 13;
_icolour_dbg = 5;
_icolour_cmd = 2;
_iconsole_historypos = ICON_HISTORY_SIZE - 1;
_iconsole_mode = ICONSOLE_CLOSED;
#ifdef ENABLE_NETWORK /* Initialize network only variables */
_redirect_console_to_client = 0;
#endif
memset(_iconsole_history, 0, sizeof(_iconsole_history));
memset(_iconsole_buffer, 0, sizeof(_iconsole_buffer));
memset(_iconsole_cbuffer, 0, sizeof(_iconsole_cbuffer));
_iconsole_cmdline.buf = calloc(ICON_CMDLN_SIZE, sizeof(*_iconsole_cmdline.buf)); // create buffer and zero it
_iconsole_cmdline.maxlength = ICON_CMDLN_SIZE;
IConsolePrintF(13, "OpenTTD Game Console Revision 7 - %s", _openttd_revision);
IConsolePrint(12, "------------------------------------");
IConsolePrint(12, "use \"help\" for more information");
IConsolePrint(12, "");
IConsoleStdLibRegister();
IConsoleClearCommand();
IConsoleHistoryAdd("");
}
void IConsoleClearBuffer(void)
{
uint i;
for (i = 0; i <= ICON_BUFFER; i++) {
free(_iconsole_buffer[i]);
_iconsole_buffer[i] = NULL;
}
}
static void IConsoleClear(void)
{
free(_iconsole_cmdline.buf);
IConsoleClearBuffer();
}
static void IConsoleWriteToLogFile(const char *string)
{
if (_iconsole_output_file != NULL) {
// if there is an console output file ... also print it there
fwrite(string, strlen(string), 1, _iconsole_output_file);
fwrite("\n", 1, 1, _iconsole_output_file);
}
}
bool CloseConsoleLogIfActive(void)
{
if (_iconsole_output_file != NULL) {
IConsolePrintF(_icolour_def, "file output complete");
fclose(_iconsole_output_file);
_iconsole_output_file = NULL;
return true;
}
return false;
}
void IConsoleFree(void)
{
IConsoleClear();
CloseConsoleLogIfActive();
}
void IConsoleResize(Window *w)
{
switch (_iconsole_mode) {
case ICONSOLE_OPENED:
w->height = _screen.height / 3;
w->width = _screen.width;
break;
case ICONSOLE_FULL:
w->height = _screen.height - ICON_BOTTOM_BORDERWIDTH;
w->width = _screen.width;
break;
default: return;
}
MarkWholeScreenDirty();
}
void IConsoleSwitch(void)
{
switch (_iconsole_mode) {
case ICONSOLE_CLOSED: {
Window *w = AllocateWindowDesc(&_iconsole_window_desc);
w->height = _screen.height / 3;
w->width = _screen.width;
_iconsole_mode = ICONSOLE_OPENED;
SETBIT(_no_scroll, SCROLL_CON); // override cursor arrows; the gamefield will not scroll
} break;
case ICONSOLE_OPENED: case ICONSOLE_FULL:
DeleteWindowById(WC_CONSOLE, 0);
_iconsole_mode = ICONSOLE_CLOSED;
CLRBIT(_no_scroll, SCROLL_CON);
break;
}
MarkWholeScreenDirty();
}
void IConsoleClose(void) {if (_iconsole_mode == ICONSOLE_OPENED) IConsoleSwitch();}
void IConsoleOpen(void) {if (_iconsole_mode == ICONSOLE_CLOSED) IConsoleSwitch();}
/**
* Add the entered line into the history so you can look it back
* scroll, etc. Put it to the beginning as it is the latest text
* @param cmd Text to be entered into the 'history'
*/
static void IConsoleHistoryAdd(const char *cmd)
{
free(_iconsole_history[ICON_HISTORY_SIZE - 1]);
memmove(&_iconsole_history[1], &_iconsole_history[0], sizeof(_iconsole_history[0]) * (ICON_HISTORY_SIZE - 1));
_iconsole_history[0] = strdup(cmd);
IConsoleResetHistoryPos();
}
/**
* Navigate Up/Down in the history of typed commands
* @param direction Go further back in history (+1), go to recently typed commands (-1)
*/
static void IConsoleHistoryNavigate(int direction)
{
int i = _iconsole_historypos + direction;
// watch out for overflows, just wrap around
if (i < 0) i = ICON_HISTORY_SIZE - 1;
if (i >= ICON_HISTORY_SIZE) i = 0;
if (direction > 0)
if (_iconsole_history[i] == NULL) i = 0;
if (direction < 0) {
while (i > 0 && _iconsole_history[i] == NULL) i--;
}
_iconsole_historypos = i;
IConsoleClearCommand();
// copy history to 'command prompt / bash'
assert(_iconsole_history[i] != NULL && IS_INT_INSIDE(i, 0, ICON_HISTORY_SIZE));
ttd_strlcpy(_iconsole_cmdline.buf, _iconsole_history[i], _iconsole_cmdline.maxlength);
UpdateTextBufferSize(&_iconsole_cmdline);
}
/**
* Handle the printing of text entered into the console or redirected there
* by any other means. Text can be redirected to other players in a network game
* as well as to a logfile. If the network server is a dedicated server, all activities
* are also logged. All lines to print are added to a temporary buffer which can be
* used as a history to print them onscreen
* @param color_code the colour of the command. Red in case of errors, etc.
* @param string the message entered or output on the console (notice, error, etc.)
*/
void IConsolePrint(uint16 color_code, const char *string)
{
char *str;
#ifdef ENABLE_NETWORK
if (_redirect_console_to_client != 0) {
/* Redirect the string to the client */
SEND_COMMAND(PACKET_SERVER_RCON)(NetworkFindClientStateFromIndex(_redirect_console_to_client), color_code, string);
return;
}
#endif
/* Create a copy of the string, strip if of colours and invalid
* characters and (when applicable) assign it to the console buffer */
str = strdup(string);
str_strip_colours(str);
str_validate(str);
if (_network_dedicated) {
printf("%s\n", str);
IConsoleWriteToLogFile(str);
free(str); // free duplicated string since it's not used anymore
return;
}
/* move up all the strings in the buffer one place and do the same for colour
* to accomodate for the new command/message */
free(_iconsole_buffer[0]);
memmove(&_iconsole_buffer[0], &_iconsole_buffer[1], sizeof(_iconsole_buffer[0]) * ICON_BUFFER);
_iconsole_buffer[ICON_BUFFER] = str;
memmove(&_iconsole_cbuffer[0], &_iconsole_cbuffer[1], sizeof(_iconsole_cbuffer[0]) * ICON_BUFFER);
_iconsole_cbuffer[ICON_BUFFER] = color_code;
IConsoleWriteToLogFile(_iconsole_buffer[ICON_BUFFER]);
SetWindowDirty(FindWindowById(WC_CONSOLE, 0));
}
/**
* Handle the printing of text entered into the console or redirected there
* by any other means. Uses printf() style format, for more information look
* at @IConsolePrint()
*/
void CDECL IConsolePrintF(uint16 color_code, const char *s, ...)
{
va_list va;
char buf[ICON_MAX_STREAMSIZE];
va_start(va, s);
vsnprintf(buf, sizeof(buf), s, va);
va_end(va);
IConsolePrint(color_code, buf);
}
/**
* It is possible to print debugging information to the console,
* which is achieved by using this function. Can only be used by
* @debug() in debug.c. You need at least a level 2 (developer) for debugging
* messages to show up
* @param dbg debugging category
* @param string debugging message
*/
void IConsoleDebug(const char *dbg, const char *string)
{
if (_stdlib_developer > 1)
IConsolePrintF(_icolour_dbg, "dbg: [%s] %s", dbg, string);
}
/**
* It is possible to print warnings to the console. These are mostly
* errors or mishaps, but non-fatal. You need at least a level 1 (developer) for
* debugging messages to show up
*/
void IConsoleWarning(const char *string)
{
if (_stdlib_developer > 0)
IConsolePrintF(_icolour_warn, "WARNING: %s", string);
}
/**
* It is possible to print error information to the console. This can include
* game errors, or errors in general you would want the user to notice
*/
void IConsoleError(const char *string)
{
IConsolePrintF(_icolour_err, "ERROR: %s", string);
}
/**
* Change a string into its number representation. Supports
* decimal and hexadecimal numbers as well as 'on'/'off' 'true'/'false'
* @param *value the variable a successfull conversion will be put in
* @param *arg the string to be converted
* @return Return true on success or false on failure
*/
bool GetArgumentInteger(uint32 *value, const char *arg)
{
char *endptr;
if (strcmp(arg, "on") == 0 || strcmp(arg, "true") == 0) {
*value = 1;
return true;
}
if (strcmp(arg, "off") == 0 || strcmp(arg, "false") == 0) {
*value = 0;
return true;
}
*value = strtoul(arg, &endptr, 0);
return arg != endptr;
}
// * ************************* * //
// * hooking code * //
// * ************************* * //
/**
* General internal hooking code that is the same for both commands and variables
* @param hooks @IConsoleHooks structure that will be set according to
* @param type type access trigger
* @param proc function called when the hook criteria is met
*/
static void IConsoleHookAdd(IConsoleHooks *hooks, IConsoleHookTypes type, IConsoleHook *proc)
{
if (hooks == NULL || proc == NULL) return;
switch (type) {
case ICONSOLE_HOOK_ACCESS:
hooks->access = proc;
break;
case ICONSOLE_HOOK_PRE_ACTION:
hooks->pre = proc;
break;
case ICONSOLE_HOOK_POST_ACTION:
hooks->post = proc;
break;
default: NOT_REACHED();
}
}
/**
* Handle any special hook triggers. If the hook type is met check if
* there is a function associated with that and if so, execute it
* @param hooks @IConsoleHooks structure that will be checked
* @param type type of hook, trigger that needs to be activated
* @return true on a successfull execution of the hook command or if there
* is no hook/trigger present at all. False otherwise
*/
static bool IConsoleHookHandle(const IConsoleHooks *hooks, IConsoleHookTypes type)
{
IConsoleHook *proc = NULL;
if (hooks == NULL) return false;
switch (type) {
case ICONSOLE_HOOK_ACCESS:
proc = hooks->access;
break;
case ICONSOLE_HOOK_PRE_ACTION:
proc = hooks->pre;
break;
case ICONSOLE_HOOK_POST_ACTION:
proc = hooks->post;
break;
default: NOT_REACHED();
}
return (proc == NULL) ? true : proc();
}
/**
* Add a hook to a command that will be triggered at certain points
* @param name name of the command that the hook is added to
* @param type type of hook that is added (ACCESS, BEFORE and AFTER change)
* @param proc function called when the hook criteria is met
*/
void IConsoleCmdHookAdd(const char *name, IConsoleHookTypes type, IConsoleHook *proc)
{
IConsoleCmd *cmd = IConsoleCmdGet(name);
if (cmd == NULL) return;
IConsoleHookAdd(&cmd->hook, type, proc);
}
/**
* Add a hook to a variable that will be triggered at certain points
* @param name name of the variable that the hook is added to
* @param type type of hook that is added (ACCESS, BEFORE and AFTER change)
* @param proc function called when the hook criteria is met
*/
void IConsoleVarHookAdd(const char *name, IConsoleHookTypes type, IConsoleHook *proc)
{
IConsoleVar *var = IConsoleVarGet(name);
if (var == NULL) return;
IConsoleHookAdd(&var->hook, type, proc);
}
/**
* Perhaps ugly macro, but this saves us the trouble of writing the same function
* three types, just with different variables. Yes, templates would be handy. It was
* either this define or an even more ugly void* magic function
*/
#define IConsoleAddSorted(_base, item_new, IConsoleType, type) \
{ \
IConsoleType *item, *item_before; \
/* first command */ \
if (_base == NULL) { \
_base = item_new; \
return; \
} \
\
item_before = NULL; \
item = _base; \
\
/* BEGIN - Alphabetically insert the commands into the linked list */ \
while (item != NULL) { \
int i = strcmp(item->name, item_new->name); \
if (i == 0) { \
IConsoleError(type " with this name already exists; insertion aborted"); \
free(item_new); \
return; \
} \
\
if (i > 0) break; /* insert at this position */ \
\
item_before = item; \
item = item->next; \
} \
\
if (item_before == NULL) { \
_base = item_new; \
} else { \
item_before->next = item_new; \
} \
\
item_new->next = item; \
/* END - Alphabetical insert */ \
}
/**
* Register a new command to be used in the console
* @param name name of the command that will be used
* @param proc function that will be called upon execution of command
*/
void IConsoleCmdRegister(const char *name, IConsoleCmdProc *proc)
{
char *new_cmd = strdup(name);
IConsoleCmd *item_new = malloc(sizeof(IConsoleCmd));
item_new->next = NULL;
item_new->proc = proc;
item_new->name = new_cmd;
item_new->hook.access = NULL;
item_new->hook.pre = NULL;
item_new->hook.post = NULL;
IConsoleAddSorted(_iconsole_cmds, item_new, IConsoleCmd, "a command");
}
/**
* Find the command pointed to by its string
* @param name command to be found
* @return return Cmdstruct of the found command, or NULL on failure
*/
IConsoleCmd *IConsoleCmdGet(const char *name)
{
IConsoleCmd *item;
for (item = _iconsole_cmds; item != NULL; item = item->next) {
if (strcmp(item->name, name) == 0) return item;
}
return NULL;
}
/**
* Register a an alias for an already existing command in the console
* @param name name of the alias that will be used
* @param cmd name of the command that 'name' will be alias of
*/
void IConsoleAliasRegister(const char *name, const char *cmd)
{
char *new_alias = strdup(name);
char *cmd_aliased = strdup(cmd);
IConsoleAlias *item_new = malloc(sizeof(IConsoleAlias));
item_new->next = NULL;
item_new->cmdline = cmd_aliased;
item_new->name = new_alias;
IConsoleAddSorted(_iconsole_aliases, item_new, IConsoleAlias, "an alias");
}
/**
* Find the alias pointed to by its string
* @param name alias to be found
* @return return Aliasstruct of the found alias, or NULL on failure
*/
IConsoleAlias *IConsoleAliasGet(const char *name)
{
IConsoleAlias* item;
for (item = _iconsole_aliases; item != NULL; item = item->next) {
if (strcmp(item->name, name) == 0) return item;
}
return NULL;
}
/** copy in an argument into the aliasstream */
static inline int IConsoleCopyInParams(char *dst, const char *src, uint bufpos)
{
int len = min(ICON_MAX_STREAMSIZE - bufpos, (uint)strlen(src));
strncpy(dst, src, len);
return len;
}
/**
* An alias is just another name for a command, or for more commands
* Execute it as well.
* @param *alias is the alias of the command
* @param tokencount the number of parameters passed
* @param *tokens are the parameters given to the original command (0 is the first param)
*/
static void IConsoleAliasExec(const IConsoleAlias *alias, byte tokencount, char *tokens[ICON_TOKEN_COUNT])
{
const char *cmdptr;
char *aliases[ICON_MAX_ALIAS_LINES], aliasstream[ICON_MAX_STREAMSIZE];
uint i;
uint a_index, astream_i;
memset(&aliases, 0, sizeof(aliases));
memset(&aliasstream, 0, sizeof(aliasstream));
if (_stdlib_con_developer)
IConsolePrintF(_icolour_dbg, "condbg: requested command is an alias; parsing...");
aliases[0] = aliasstream;
for (cmdptr = alias->cmdline, a_index = 0, astream_i = 0; *cmdptr != '\0'; cmdptr++) {
if (a_index >= lengthof(aliases) || astream_i >= lengthof(aliasstream)) break;
switch (*cmdptr) {
case '\'': /* ' will double for "" */
aliasstream[astream_i++] = '"';
break;
case ';': /* Cmd seperator, start new command */
aliasstream[astream_i] = '\0';
aliases[++a_index] = &aliasstream[++astream_i];
cmdptr++;
break;
case '%': /* Some or all parameters */
cmdptr++;
switch (*cmdptr) {
case '+': { /* All parameters seperated: "[param 1]" "[param 2]" */
for (i = 0; i != tokencount; i++) {
aliasstream[astream_i++] = '"';
astream_i += IConsoleCopyInParams(&aliasstream[astream_i], tokens[i], astream_i);
aliasstream[astream_i++] = '"';
aliasstream[astream_i++] = ' ';
}
} break;
case '!': { /* Merge the parameters to one: "[param 1] [param 2] [param 3...]" */
aliasstream[astream_i++] = '"';
for (i = 0; i != tokencount; i++) {
astream_i += IConsoleCopyInParams(&aliasstream[astream_i], tokens[i], astream_i);
aliasstream[astream_i++] = ' ';
}
aliasstream[astream_i++] = '"';
} break;
default: { /* One specific parameter: %A = [param 1] %B = [param 2] ... */
int param = *cmdptr - 'A';
if (param < 0 || param >= tokencount) {
IConsoleError("too many or wrong amount of parameters passed to alias, aborting");
IConsolePrintF(_icolour_warn, "Usage of alias '%s': %s", alias->name, alias->cmdline);
return;
}
aliasstream[astream_i++] = '"';
astream_i += IConsoleCopyInParams(&aliasstream[astream_i], tokens[param], astream_i);
aliasstream[astream_i++] = '"';
} break;
} break;
default:
aliasstream[astream_i++] = *cmdptr;
break;
}
}
for (i = 0; i <= a_index; i++) IConsoleCmdExec(aliases[i]); // execute each alias in turn
}
/**
* Special function for adding string-type variables. They in addition
* also need a 'size' value saying how long their string buffer is.
* @param size the length of the string buffer
* For more information see @IConsoleVarRegister()
*/
void IConsoleVarStringRegister(const char *name, void *addr, uint32 size, const char *help)
{
IConsoleVar *var;
IConsoleVarRegister(name, addr, ICONSOLE_VAR_STRING, help);
var = IConsoleVarGet(name);
var->size = size;
}
/**
* Register a new variable to be used in the console
* @param name name of the variable that will be used
* @param addr memory location the variable will point to
* @param help the help string shown for the variable
* @param type the type of the variable (simple atomic) so we know which values it can get
*/
void IConsoleVarRegister(const char *name, void *addr, IConsoleVarTypes type, const char *help)
{
char *new_cmd = strdup(name);
IConsoleVar *item_new = malloc(sizeof(IConsoleVar));
item_new->help = (help != NULL) ? strdup(help) : NULL;
item_new->next = NULL;
item_new->name = new_cmd;
item_new->addr = addr;
item_new->proc = NULL;
item_new->type = type;
item_new->hook.access = NULL;
item_new->hook.pre = NULL;
item_new->hook.post = NULL;
IConsoleAddSorted(_iconsole_vars, item_new, IConsoleVar, "a variable");
}
/**
* Find the variable pointed to by its string
* @param name variable to be found
* @return return Varstruct of the found variable, or NULL on failure
*/
IConsoleVar *IConsoleVarGet(const char *name)
{
IConsoleVar *item;
for (item = _iconsole_vars; item != NULL; item = item->next) {
if (strcmp(item->name, name) == 0) return item;
}
return NULL;
}
/**
* Set a new value to a console variable
* @param *var the variable being set/changed
* @param value the new value given to the variable, cast properly
*/
static void IConsoleVarSetValue(const IConsoleVar *var, uint32 value)
{
IConsoleHookHandle(&var->hook, ICONSOLE_HOOK_PRE_ACTION);
switch (var->type) {
case ICONSOLE_VAR_BOOLEAN:
*(bool*)var->addr = (value != 0);
break;
case ICONSOLE_VAR_BYTE:
*(byte*)var->addr = (byte)value;
break;
case ICONSOLE_VAR_UINT16:
*(uint16*)var->addr = (uint16)value;
break;
case ICONSOLE_VAR_INT16:
*(int16*)var->addr = (int16)value;
break;
case ICONSOLE_VAR_UINT32:
*(uint32*)var->addr = (uint32)value;
break;
case ICONSOLE_VAR_INT32:
*(int32*)var->addr = (int32)value;
break;
default: NOT_REACHED();
}
IConsoleHookHandle(&var->hook, ICONSOLE_HOOK_POST_ACTION);
IConsoleVarPrintSetValue(var);
}
/**
* Set a new value to a string-type variable. Basically this
* means to copy the new value over to the container.
* @param *var the variable in question
* @param *value the new value
*/
static void IConsoleVarSetStringvalue(const IConsoleVar *var, const char *value)
{
if (var->type != ICONSOLE_VAR_STRING || var->addr == NULL) return;
IConsoleHookHandle(&var->hook, ICONSOLE_HOOK_PRE_ACTION);
ttd_strlcpy(var->addr, value, var->size);
IConsoleHookHandle(&var->hook, ICONSOLE_HOOK_POST_ACTION);
IConsoleVarPrintSetValue(var); // print out the new value, giving feedback
return;
}
/**
* Query the current value of a variable and return it
* @param *var the variable queried
* @return current value of the variable
*/
static uint32 IConsoleVarGetValue(const IConsoleVar *var)
{
uint32 result = 0;
switch (var->type) {
case ICONSOLE_VAR_BOOLEAN:
result = *(bool*)var->addr;
break;
case ICONSOLE_VAR_BYTE:
result = *(byte*)var->addr;
break;
case ICONSOLE_VAR_UINT16:
result = *(uint16*)var->addr;
break;
case ICONSOLE_VAR_INT16:
result = *(int16*)var->addr;
break;
case ICONSOLE_VAR_UINT32:
result = *(uint32*)var->addr;
break;
case ICONSOLE_VAR_INT32:
result = *(int32*)var->addr;
break;
default: NOT_REACHED();
}
return result;
}
/**
* Get the value of the variable and put it into a printable
* string form so we can use it for printing
*/
static char *IConsoleVarGetStringValue(const IConsoleVar *var)
{
static char tempres[50];
char *value = tempres;
switch (var->type) {
case ICONSOLE_VAR_BOOLEAN:
snprintf(tempres, sizeof(tempres), "%s", (*(bool*)var->addr) ? "on" : "off");
break;
case ICONSOLE_VAR_BYTE:
snprintf(tempres, sizeof(tempres), "%u", *(byte*)var->addr);
break;
case ICONSOLE_VAR_UINT16:
snprintf(tempres, sizeof(tempres), "%u", *(uint16*)var->addr);
break;
case ICONSOLE_VAR_UINT32:
snprintf(tempres, sizeof(tempres), "%u", *(uint32*)var->addr);
break;
case ICONSOLE_VAR_INT16:
snprintf(tempres, sizeof(tempres), "%i", *(int16*)var->addr);
break;
case ICONSOLE_VAR_INT32:
snprintf(tempres, sizeof(tempres), "%i", *(int32*)var->addr);
break;
case ICONSOLE_VAR_STRING:
value = (char*)var->addr;
break;
default: NOT_REACHED();
}
return value;
}
/**
* Print out the value of the variable when asked
*/
void IConsoleVarPrintGetValue(const IConsoleVar *var)
{
char *value;
/* Some variables need really specific handling, handle this in its
* callback function */
if (var->proc != NULL) {
var->proc(0, NULL);
return;
}
value = IConsoleVarGetStringValue(var);
IConsolePrintF(_icolour_warn, "Current value for '%s' is: %s", var->name, value);
}
/**
* Print out the value of the variable after it has been assigned
* a new value, thus giving us feedback on the action
*/
void IConsoleVarPrintSetValue(const IConsoleVar *var)
{
char *value = IConsoleVarGetStringValue(var);
IConsolePrintF(_icolour_warn, "'%s' changed to: %s", var->name, value);
}
/**
* Execute a variable command. Without any parameters, print out its value
* with parameters it assigns a new value to the variable
* @param *var the variable that we will be querying/changing
* @param tokencount how many additional parameters have been given to the commandline
* @param *token the actual parameters the variable was called with
*/
void IConsoleVarExec(const IConsoleVar *var, byte tokencount, char *token[ICON_TOKEN_COUNT])
{
const char *tokenptr = token[0];
byte t_index = tokencount;
uint32 value;
if (_stdlib_con_developer)
IConsolePrintF(_icolour_dbg, "condbg: requested command is a variable");
if (tokencount == 0) { /* Just print out value */
IConsoleVarPrintGetValue(var);
return;
}
/* Use of assignment sign is not mandatory but supported, so just 'ignore it appropiately' */
if (strcmp(tokenptr, "=") == 0) tokencount--;
if (tokencount == 1) {
/* Some variables need really special handling, handle it in their callback procedure */
if (var->proc != NULL) {
var->proc(tokencount, &token[t_index - tokencount]); // set the new value
return;
}
/* Strings need special processing. No need to convert the argument to
* an integer value, just copy over the argument on a one-by-one basis */
if (var->type == ICONSOLE_VAR_STRING) {
IConsoleVarSetStringvalue(var, token[t_index - tokencount]);
return;
} else if (GetArgumentInteger(&value, token[t_index - tokencount])) {
IConsoleVarSetValue(var, value);
return;
}
/* Increase or decrease the value by one. This of course can only happen to 'number' types */
if (strcmp(tokenptr, "++") == 0 && var->type != ICONSOLE_VAR_STRING) {
IConsoleVarSetValue(var, IConsoleVarGetValue(var) + 1);
return;
}
if (strcmp(tokenptr, "--") == 0 && var->type != ICONSOLE_VAR_STRING) {
IConsoleVarSetValue(var, IConsoleVarGetValue(var) - 1);
return;
}
}
IConsoleError("invalid variable assignment");
}
/**
* Add a callback function to the variable. Some variables need
* very special processing, which can only be done with custom code
* @param name name of the variable the callback function is added to
* @param proc the function called
*/
void IConsoleVarProcAdd(const char *name, IConsoleCmdProc *proc)
{
IConsoleVar *var = IConsoleVarGet(name);
if (var == NULL) return;
var->proc = proc;
}
/**
* Execute a given command passed to us. First chop it up into
* individual tokens (seperated by spaces), then execute it if possible
* @param cmdstr string to be parsed and executed
*/
void IConsoleCmdExec(const char *cmdstr)
{
IConsoleCmd *cmd = NULL;
IConsoleAlias *alias = NULL;
IConsoleVar *var = NULL;
const char *cmdptr;
char *tokens[ICON_TOKEN_COUNT], tokenstream[ICON_MAX_STREAMSIZE];
uint t_index, tstream_i;
bool longtoken = false;
bool foundtoken = false;
if (cmdstr[0] == '#') return; // comments
for (cmdptr = cmdstr; *cmdptr != '\0'; cmdptr++) {
if (!IsValidChar(*cmdptr, CS_ALPHANUMERAL)) {
IConsoleError("command contains malformed characters, aborting");
IConsolePrintF(_icolour_err, "ERROR: command was: '%s'", cmdstr);
return;
}
}
if (_stdlib_con_developer)
IConsolePrintF(_icolour_dbg, "condbg: executing cmdline: '%s'", cmdstr);
memset(&tokens, 0, sizeof(tokens));
memset(&tokenstream, 0, sizeof(tokenstream));
/* 1. Split up commandline into tokens, seperated by spaces, commands
* enclosed in "" are taken as one token. We can only go as far as the amount
* of characters in our stream or the max amount of tokens we can handle */
for (cmdptr = cmdstr, t_index = 0, tstream_i = 0; *cmdptr != '\0'; cmdptr++) {
if (t_index >= lengthof(tokens) || tstream_i >= lengthof(tokenstream)) break;
switch (*cmdptr) {
case ' ': /* Token seperator */
if (!foundtoken) break;
if (longtoken) {
tokenstream[tstream_i] = *cmdptr;
} else {
tokenstream[tstream_i] = '\0';
foundtoken = false;
}
tstream_i++;
break;
case '"': /* Tokens enclosed in "" are one token */
longtoken = !longtoken;
break;
case '\\': /* Escape character for "" */
if (cmdptr[1] == '"' && tstream_i + 1 < lengthof(tokenstream)) {
tokenstream[tstream_i++] = *++cmdptr;
break;
}
/* fallthrough */
default: /* Normal character */
tokenstream[tstream_i++] = *cmdptr;
if (!foundtoken) {
tokens[t_index++] = &tokenstream[tstream_i - 1];
foundtoken = true;
}
break;
}
}
if (_stdlib_con_developer) {
uint i;
for (i = 0; tokens[i] != NULL; i++) {
IConsolePrintF(_icolour_dbg, "condbg: token %d is: '%s'", i, tokens[i]);
}
}
if (tokens[0] == '\0') return; // don't execute empty commands
/* 2. Determine type of command (cmd, alias or variable) and execute
* First try commands, then aliases, and finally variables. Execute
* the found action taking into account its hooking code
*/
cmd = IConsoleCmdGet(tokens[0]);
if (cmd != NULL) {
if (IConsoleHookHandle(&cmd->hook, ICONSOLE_HOOK_ACCESS)) {
IConsoleHookHandle(&cmd->hook, ICONSOLE_HOOK_PRE_ACTION);
if (cmd->proc(t_index, tokens)) { // index started with 0
IConsoleHookHandle(&cmd->hook, ICONSOLE_HOOK_POST_ACTION);
} else {
cmd->proc(0, NULL); // if command failed, give help
}
}
return;
}
t_index--; // ignore the variable-name for comfort for both aliases and variaables
alias = IConsoleAliasGet(tokens[0]);
if (alias != NULL) {
IConsoleAliasExec(alias, t_index, &tokens[1]);
return;
}
var = IConsoleVarGet(tokens[0]);
if (var != NULL) {
if (IConsoleHookHandle(&var->hook, ICONSOLE_HOOK_ACCESS)) {
IConsoleVarExec(var, t_index, &tokens[1]);
}
return;
}
IConsoleError("command or variable not found");
}