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/squirrel_util.hpp"
27 #include "physfs/physfs_stream.hpp"
28 #include "player_status.hpp"
31 #include "resources.hpp"
33 /// speed (pixels/s) the console closes
34 static const float FADE_SPEED = 1;
37 : vm(NULL), backgroundOffset(0), height(0), alpha(1.0), offset(0),
38 focused(false), stayOpen(0)
46 sq_release(Scripting::global_vm, &vm_object);
51 Console::init_graphics()
53 font.reset(new Font("images/engine/fonts/white-small.png",
54 "images/engine/fonts/shadow-small.png", 8, 9, 1));
55 fontheight = font->get_height();
56 background.reset(new Surface("images/engine/console.png"));
57 background2.reset(new Surface("images/engine/console2.png"));
61 Console::flush(ConsoleStreamBuffer* buffer)
63 if (buffer == &outputBuffer) {
64 std::string s = outputBuffer.str();
65 if ((s.length() > 0) && ((s[s.length()-1] == '\n') || (s[s.length()-1] == '\r'))) {
66 while ((s[s.length()-1] == '\n') || (s[s.length()-1] == '\r')) s.erase(s.length()-1);
68 outputBuffer.str(std::string());
71 if (buffer == &inputBuffer) {
72 std::string s = inputBuffer.str();
73 if ((s.length() > 0) && ((s[s.length()-1] == '\n') || (s[s.length()-1] == '\r'))) {
74 while ((s[s.length()-1] == '\n') || (s[s.length()-1] == '\r')) s.erase(s.length()-1);
77 inputBuffer.str(std::string());
83 Console::execute_script(const std::string& command)
85 using namespace Scripting;
88 vm = Scripting::global_vm;
89 HSQUIRRELVM new_vm = sq_newthread(vm, 16);
91 throw Scripting::SquirrelError(vm, "Couldn't create new VM thread for console");
93 // store reference to thread
94 sq_resetobject(&vm_object);
95 if(SQ_FAILED(sq_getstackobj(vm, -1, &vm_object)))
96 throw Scripting::SquirrelError(vm, "Couldn't get vm object for console");
97 sq_addref(vm, &vm_object);
100 // create new roottable for thread
102 sq_pushroottable(new_vm);
103 if(SQ_FAILED(sq_setdelegate(new_vm, -2)))
104 throw Scripting::SquirrelError(new_vm, "Couldn't set console_table delegate");
106 sq_setroottable(new_vm);
111 std::string filename = "scripts/console.nut";
112 IFileStream stream(filename);
113 Scripting::compile_and_run(vm, stream, filename);
114 } catch(std::exception& e) {
115 log_warning << "Couldn't load console.nut: " << e.what() << std::endl;
119 int oldtop = sq_gettop(vm);
121 if(SQ_FAILED(sq_compilebuffer(vm, command.c_str(), command.length(),
123 throw SquirrelError(vm, "Couldn't compile command");
125 sq_pushroottable(vm);
126 if(SQ_FAILED(sq_call(vm, 1, SQTrue, SQTrue)))
127 throw SquirrelError(vm, "Problem while executing command");
129 if(sq_gettype(vm, -1) != OT_NULL)
130 addLine(squirrel2string(vm, -1));
131 } catch(std::exception& e) {
134 int newtop = sq_gettop(vm);
135 if(newtop < oldtop) {
136 log_fatal << "Script destroyed squirrel stack..." << std::endl;
138 sq_settop(vm, oldtop);
145 std::string s = inputBuffer.str();
146 if (s.length() > 0) {
147 s.erase(s.length()-1);
149 inputBuffer.pubseekoff(0, std::ios_base::end, std::ios_base::out);
154 Console::scroll(int numLines)
157 if (offset > 0) offset = 0;
161 Console::autocomplete()
163 std::string cmdPart = inputBuffer.str();
164 addLine("> "+cmdPart);
166 std::string cmdList = "";
168 for (std::map<std::string, std::list<ConsoleCommandReceiver*> >::iterator i = commands.begin(); i != commands.end(); i++) {
169 std::string cmdKnown = i->first;
170 if (cmdKnown.substr(0, cmdPart.length()) == cmdPart) {
171 if (cmdListLen > 0) cmdList = cmdList + ", ";
172 cmdList = cmdList + cmdKnown;
176 if (cmdListLen == 0) addLine("No known command starts with \""+cmdPart+"\"");
177 if (cmdListLen == 1) {
178 inputBuffer.str(cmdList);
179 inputBuffer.pubseekoff(0, std::ios_base::end, std::ios_base::out);
181 if (cmdListLen > 1) addLine(cmdList);
185 Console::addLine(std::string s)
187 std::cerr << s << std::endl;
188 while (s.length() > 99) {
189 lines.push_front(s.substr(0, 99-3)+"...");
190 s = "..."+s.substr(99-3);
194 while (lines.size() >= 1000)
200 height += fontheight;
209 Console::parse(std::string s)
211 // make sure we actually have something to parse
212 if (s.length() == 0) return;
214 // split line into list of args
215 std::vector<std::string> args;
219 start = s.find_first_not_of(" ,", end);
220 end = s.find_first_of(" ,", start);
221 if (start == s.npos) break;
222 args.push_back(s.substr(start, end-start));
225 // command is args[0]
226 if (args.size() == 0) return;
227 std::string command = args.front();
228 args.erase(args.begin());
230 // ignore if it's an internal command
231 if (consoleCommand(command,args)) return;
233 // look up registered ccr
234 std::map<std::string, std::list<ConsoleCommandReceiver*> >::iterator i = commands.find(command);
235 if ((i == commands.end()) || (i->second.size() == 0)) {
238 } catch(std::exception& e) {
244 // send command to the most recently registered ccr
245 ConsoleCommandReceiver* ccr = i->second.front();
246 if (ccr->consoleCommand(command, args) != true) log_warning << "Sent command to registered ccr, but command was unhandled" << std::endl;
250 Console::consoleCommand(std::string command, std::vector<std::string> arguments)
252 if (command == "ccrs") {
253 if (arguments.size() != 1) {
254 log_info << "Usage: ccrs <command>" << std::endl;
257 std::map<std::string, std::list<ConsoleCommandReceiver*> >::iterator i = commands.find(arguments[0]);
258 if ((i == commands.end()) || (i->second.size() == 0)) {
259 log_info << "unknown command: \"" << arguments[0] << "\"" << std::endl;
263 std::ostringstream ccr_list;
264 std::list<ConsoleCommandReceiver*> &ccrs = i->second;
265 std::list<ConsoleCommandReceiver*>::iterator j;
266 for (j = ccrs.begin(); j != ccrs.end(); j++) {
267 if (j != ccrs.begin()) ccr_list << ", ";
268 ccr_list << "[" << *j << "]";
271 log_info << "registered ccrs for \"" << arguments[0] << "\": " << ccr_list.str() << std::endl;
299 // clear input buffer
300 inputBuffer.str(std::string());
306 if (Console::hasFocus()) {
315 Console::update(float elapsed_time)
318 stayOpen -= elapsed_time;
321 } else if(!focused && height > 0) {
322 alpha -= elapsed_time * FADE_SPEED;
331 Console::draw(DrawingContext& context)
336 int layer = LAYER_GUI + 1;
338 context.push_transform();
339 context.set_alpha(alpha);
340 context.draw_surface(background2.get(), Vector(SCREEN_WIDTH/2 - background->get_width()/2 - background->get_width() + backgroundOffset, height - background->get_height()), layer);
341 context.draw_surface(background2.get(), Vector(SCREEN_WIDTH/2 - background->get_width()/2 + backgroundOffset, height - background->get_height()), layer);
342 context.draw_surface(background.get(), Vector(SCREEN_WIDTH/2 - background->get_width()/2, height - background->get_height()), layer);
343 backgroundOffset+=10;
344 if (backgroundOffset > (int)background->get_width()) backgroundOffset -= (int)background->get_width();
350 float py = height-4-1*9;
351 context.draw_text(font.get(), "> "+inputBuffer.str()+"_", Vector(4, py), LEFT_ALLIGN, layer);
354 int skipLines = -offset;
355 for (std::list<std::string>::iterator i = lines.begin(); i != lines.end(); i++) {
356 if (skipLines-- > 0) continue;
358 float py = height-4-lineNo*9;
360 context.draw_text(font.get(), *i, Vector(4, py), LEFT_ALLIGN, layer);
363 context.pop_transform();
367 Console::registerCommand(std::string command, ConsoleCommandReceiver* ccr)
369 commands[command].push_front(ccr);
373 Console::unregisterCommand(std::string command, ConsoleCommandReceiver* ccr)
375 std::map<std::string, std::list<ConsoleCommandReceiver*> >::iterator i = commands.find(command);
376 if ((i == commands.end()) || (i->second.size() == 0)) {
377 log_warning << "Command \"" << command << "\" not associated with a command receiver. Not dissociated." << std::endl;
380 std::list<ConsoleCommandReceiver*>::iterator j = find(i->second.begin(), i->second.end(), ccr);
381 if (j == i->second.end()) {
382 log_warning << "Command \"" << command << "\" not associated with given command receiver. Not dissociated." << std::endl;
389 Console::unregisterCommands(ConsoleCommandReceiver* ccr)
391 for (std::map<std::string, std::list<ConsoleCommandReceiver*> >::iterator i = commands.begin(); i != commands.end(); i++) {
392 std::list<ConsoleCommandReceiver*> &ccrs = i->second;
393 std::list<ConsoleCommandReceiver*>::iterator j;
394 while ((j = find(ccrs.begin(), ccrs.end(), ccr)) != ccrs.end()) {
400 Console* Console::instance = NULL;
401 ConsoleStreamBuffer Console::inputBuffer;
402 ConsoleStreamBuffer Console::outputBuffer;
403 std::ostream Console::input(&Console::inputBuffer);
404 std::ostream Console::output(&Console::outputBuffer);