4 // Copyright (C) 2006 Christoph Sommer <christoph.sommer@2006.expires.deltadevelopment.de>
6 // This program is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU General Public License
8 // as published by the Free Software Foundation; either version 2
9 // of the License, or (at your option) any later version.
11 // This program is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this program; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 #include "console.hpp"
23 #include "video/drawing_context.hpp"
24 #include "video/surface.hpp"
25 #include "scripting/squirrel_error.hpp"
26 #include "scripting/wrapper_util.hpp"
27 #include "physfs/physfs_stream.hpp"
28 #include "player_status.hpp"
29 #include "script_manager.hpp"
32 #include "resources.hpp"
34 /// speed (pixels/s) the console closes
35 static const float FADE_SPEED = 1;
38 : vm(NULL), backgroundOffset(0), height(0), alpha(1.0), offset(0),
39 focused(false), stayOpen(0)
41 font.reset(new Font("images/engine/fonts/white-small.png",
42 "images/engine/fonts/shadow-small.png", 8, 9, 1));
43 background.reset(new Surface("images/engine/console.png"));
44 background2.reset(new Surface("images/engine/console2.png"));
50 sq_release(ScriptManager::instance->get_vm(), &vm_object);
55 Console::flush(ConsoleStreamBuffer* buffer)
57 if (buffer == &outputBuffer) {
58 std::string s = outputBuffer.str();
59 if ((s.length() > 0) && ((s[s.length()-1] == '\n') || (s[s.length()-1] == '\r'))) {
60 while ((s[s.length()-1] == '\n') || (s[s.length()-1] == '\r')) s.erase(s.length()-1);
62 outputBuffer.str(std::string());
65 if (buffer == &inputBuffer) {
66 std::string s = inputBuffer.str();
67 if ((s.length() > 0) && ((s[s.length()-1] == '\n') || (s[s.length()-1] == '\r'))) {
68 while ((s[s.length()-1] == '\n') || (s[s.length()-1] == '\r')) s.erase(s.length()-1);
71 inputBuffer.str(std::string());
77 Console::execute_script(const std::string& command)
79 using namespace Scripting;
82 vm = ScriptManager::instance->get_vm();
83 HSQUIRRELVM new_vm = sq_newthread(vm, 16);
85 throw Scripting::SquirrelError(ScriptManager::instance->get_vm(),
86 "Couldn't create new VM thread for console");
88 // store reference to thread
89 sq_resetobject(&vm_object);
90 if(SQ_FAILED(sq_getstackobj(vm, -1, &vm_object)))
91 throw Scripting::SquirrelError(vm, "Couldn't get vm object for console");
92 sq_addref(vm, &vm_object);
95 // create new roottable for thread
97 sq_pushroottable(new_vm);
98 if(SQ_FAILED(sq_setdelegate(new_vm, -2)))
99 throw Scripting::SquirrelError(new_vm, "Couldn't set console_table delegate");
101 sq_setroottable(new_vm);
106 std::string filename = "scripts/console.nut";
107 IFileStream stream(filename);
108 Scripting::compile_and_run(vm, stream, filename);
109 } catch(std::exception& e) {
110 log_warning << "Couldn't load console.nut: " << e.what() << std::endl;
114 int oldtop = sq_gettop(vm);
116 if(SQ_FAILED(sq_compilebuffer(vm, command.c_str(), command.length(),
118 throw SquirrelError(vm, "Couldn't compile command");
120 sq_pushroottable(vm);
121 if(SQ_FAILED(sq_call(vm, 1, SQTrue)))
122 throw SquirrelError(vm, "Problem while executing command");
124 if(sq_gettype(vm, -1) != OT_NULL)
125 addLine(squirrel2string(vm, -1));
126 } catch(std::exception& e) {
129 int newtop = sq_gettop(vm);
130 if(newtop < oldtop) {
131 log_fatal << "Script destroyed squirrel stack..." << std::endl;
133 sq_settop(vm, oldtop);
140 std::string s = inputBuffer.str();
141 if (s.length() > 0) {
142 s.erase(s.length()-1);
144 inputBuffer.pubseekoff(0, std::ios_base::end, std::ios_base::out);
149 Console::scroll(int numLines)
152 if (offset > 0) offset = 0;
156 Console::autocomplete()
158 std::string cmdPart = inputBuffer.str();
159 addLine("> "+cmdPart);
161 std::string cmdList = "";
163 for (std::map<std::string, std::list<ConsoleCommandReceiver*> >::iterator i = commands.begin(); i != commands.end(); i++) {
164 std::string cmdKnown = i->first;
165 if (cmdKnown.substr(0, cmdPart.length()) == cmdPart) {
166 if (cmdListLen > 0) cmdList = cmdList + ", ";
167 cmdList = cmdList + cmdKnown;
171 if (cmdListLen == 0) addLine("No known command starts with \""+cmdPart+"\"");
172 if (cmdListLen == 1) {
173 inputBuffer.str(cmdList);
174 inputBuffer.pubseekoff(0, std::ios_base::end, std::ios_base::out);
176 if (cmdListLen > 1) addLine(cmdList);
180 Console::addLine(std::string s)
182 std::cerr << s << std::endl;
183 while (s.length() > 99) {
184 lines.push_front(s.substr(0, 99-3)+"...");
185 s = "..."+s.substr(99-3);
189 while (lines.size() >= 1000)
195 height += font->get_height();
204 Console::parse(std::string s)
206 // make sure we actually have something to parse
207 if (s.length() == 0) return;
209 // split line into list of args
210 std::vector<std::string> args;
214 start = s.find_first_not_of(" ,", end);
215 end = s.find_first_of(" ,", start);
216 if (start == s.npos) break;
217 args.push_back(s.substr(start, end-start));
220 // command is args[0]
221 if (args.size() == 0) return;
222 std::string command = args.front();
223 args.erase(args.begin());
225 // ignore if it's an internal command
226 if (consoleCommand(command,args)) return;
228 // look up registered ccr
229 std::map<std::string, std::list<ConsoleCommandReceiver*> >::iterator i = commands.find(command);
230 if ((i == commands.end()) || (i->second.size() == 0)) {
233 } catch(std::exception& e) {
239 // send command to the most recently registered ccr
240 ConsoleCommandReceiver* ccr = i->second.front();
241 if (ccr->consoleCommand(command, args) != true) log_warning << "Sent command to registered ccr, but command was unhandled" << std::endl;
245 Console::consoleCommand(std::string command, std::vector<std::string> arguments)
247 if (command == "ccrs") {
248 if (arguments.size() != 1) {
249 log_info << "Usage: ccrs <command>" << std::endl;
252 std::map<std::string, std::list<ConsoleCommandReceiver*> >::iterator i = commands.find(arguments[0]);
253 if ((i == commands.end()) || (i->second.size() == 0)) {
254 log_info << "unknown command: \"" << arguments[0] << "\"" << std::endl;
258 std::ostringstream ccr_list;
259 std::list<ConsoleCommandReceiver*> &ccrs = i->second;
260 std::list<ConsoleCommandReceiver*>::iterator j;
261 for (j = ccrs.begin(); j != ccrs.end(); j++) {
262 if (j != ccrs.begin()) ccr_list << ", ";
263 ccr_list << "[" << *j << "]";
266 log_info << "registered ccrs for \"" << arguments[0] << "\": " << ccr_list.str() << std::endl;
294 // clear input buffer
295 inputBuffer.str(std::string());
301 if (Console::hasFocus()) {
310 Console::update(float elapsed_time)
313 stayOpen -= elapsed_time;
316 } else if(!focused && height > 0) {
317 alpha -= elapsed_time * FADE_SPEED;
326 Console::draw(DrawingContext& context)
331 int layer = LAYER_GUI + 1;
333 context.push_transform();
334 context.set_alpha(alpha);
335 context.draw_surface(background2.get(), Vector(SCREEN_WIDTH/2 - background->get_width()/2 - background->get_width() + backgroundOffset, height - background->get_height()), layer);
336 context.draw_surface(background2.get(), Vector(SCREEN_WIDTH/2 - background->get_width()/2 + backgroundOffset, height - background->get_height()), layer);
337 context.draw_surface(background.get(), Vector(SCREEN_WIDTH/2 - background->get_width()/2, height - background->get_height()), layer);
338 backgroundOffset+=10;
339 if (backgroundOffset > (int)background->get_width()) backgroundOffset -= (int)background->get_width();
345 float py = height-4-1*9;
346 context.draw_text(font.get(), "> "+inputBuffer.str()+"_", Vector(4, py), LEFT_ALLIGN, layer);
349 int skipLines = -offset;
350 for (std::list<std::string>::iterator i = lines.begin(); i != lines.end(); i++) {
351 if (skipLines-- > 0) continue;
353 float py = height-4-lineNo*9;
355 context.draw_text(font.get(), *i, Vector(4, py), LEFT_ALLIGN, layer);
358 context.pop_transform();
362 Console::registerCommand(std::string command, ConsoleCommandReceiver* ccr)
364 commands[command].push_front(ccr);
368 Console::unregisterCommand(std::string command, ConsoleCommandReceiver* ccr)
370 std::map<std::string, std::list<ConsoleCommandReceiver*> >::iterator i = commands.find(command);
371 if ((i == commands.end()) || (i->second.size() == 0)) {
372 log_warning << "Command \"" << command << "\" not associated with a command receiver. Not dissociated." << std::endl;
375 std::list<ConsoleCommandReceiver*>::iterator j = find(i->second.begin(), i->second.end(), ccr);
376 if (j == i->second.end()) {
377 log_warning << "Command \"" << command << "\" not associated with given command receiver. Not dissociated." << std::endl;
384 Console::unregisterCommands(ConsoleCommandReceiver* ccr)
386 for (std::map<std::string, std::list<ConsoleCommandReceiver*> >::iterator i = commands.begin(); i != commands.end(); i++) {
387 std::list<ConsoleCommandReceiver*> &ccrs = i->second;
388 std::list<ConsoleCommandReceiver*>::iterator j;
389 while ((j = find(ccrs.begin(), ccrs.end(), ccr)) != ccrs.end()) {
395 Console* Console::instance = NULL;
396 ConsoleStreamBuffer Console::inputBuffer;
397 ConsoleStreamBuffer Console::outputBuffer;
398 std::ostream Console::input(&Console::inputBuffer);
399 std::ostream Console::output(&Console::outputBuffer);