-// $Id: worldmap.cpp 3209 2006-04-02 22:19:22Z sommer $
+// $Id$
//
// SuperTux - Console
// Copyright (C) 2006 Christoph Sommer <christoph.sommer@2006.expires.deltadevelopment.de>
// 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.
-
#include <config.h>
+
#include <iostream>
+#include <math.h>
+#include <SDL_timer.h>
+#include <SDL_keyboard.h>
#include "console.hpp"
#include "video/drawing_context.hpp"
#include "video/surface.hpp"
+#include "scripting/squirrel_error.hpp"
+#include "scripting/squirrel_util.hpp"
+#include "physfs/physfs_stream.hpp"
#include "player_status.hpp"
#include "main.hpp"
+#include "log.hpp"
#include "resources.hpp"
+#include "gameconfig.hpp"
-namespace {
- int ticks; // TODO: use a clock?
+/// speed (pixels/s) the console closes
+static const float FADE_SPEED = 1;
+
+Console::Console()
+ : history_position(history.end()), vm(NULL), backgroundOffset(0),
+ height(0), alpha(1.0), offset(0), focused(false), stayOpen(0) {
+ fontheight = 8;
}
-Console::Console(DrawingContext* context) : context(context)
+Console::~Console()
{
- background = new Surface("images/engine/console.jpg");
+ if(vm != NULL) {
+ sq_release(Scripting::global_vm, &vm_object);
+ }
}
-Console::~Console()
+void
+Console::init_graphics()
{
- delete background;
+ font.reset(new Font(Font::FIXED,"fonts/andale12.stf",1));
+ fontheight = font->get_height();
+ background.reset(new Surface("images/engine/console.png"));
+ background2.reset(new Surface("images/engine/console2.png"));
+}
+
+void
+Console::flush(ConsoleStreamBuffer* buffer)
+{
+ if (buffer == &outputBuffer) {
+ std::string s = outputBuffer.str();
+ if ((s.length() > 0) && ((s[s.length()-1] == '\n') || (s[s.length()-1] == '\r'))) {
+ while ((s[s.length()-1] == '\n') || (s[s.length()-1] == '\r')) s.erase(s.length()-1);
+ addLines(s);
+ outputBuffer.str(std::string());
+ }
+ }
+}
+
+void
+Console::ready_vm()
+{
+ if(vm == NULL) {
+ vm = Scripting::global_vm;
+ HSQUIRRELVM new_vm = sq_newthread(vm, 16);
+ if(new_vm == NULL)
+ throw Scripting::SquirrelError(vm, "Couldn't create new VM thread for console");
+
+ // store reference to thread
+ sq_resetobject(&vm_object);
+ if(SQ_FAILED(sq_getstackobj(vm, -1, &vm_object)))
+ throw Scripting::SquirrelError(vm, "Couldn't get vm object for console");
+ sq_addref(vm, &vm_object);
+ sq_pop(vm, 1);
+
+ // create new roottable for thread
+ sq_newtable(new_vm);
+ sq_pushroottable(new_vm);
+ if(SQ_FAILED(sq_setdelegate(new_vm, -2)))
+ throw Scripting::SquirrelError(new_vm, "Couldn't set console_table delegate");
+
+ sq_setroottable(new_vm);
+
+ vm = new_vm;
+
+ try {
+ std::string filename = "scripts/console.nut";
+ IFileStream stream(filename);
+ Scripting::compile_and_run(vm, stream, filename);
+ } catch(std::exception& e) {
+ log_warning << "Couldn't load console.nut: " << e.what() << std::endl;
+ }
+ }
+}
+
+void
+Console::execute_script(const std::string& command)
+{
+ using namespace Scripting;
+
+ ready_vm();
+
+ SQInteger oldtop = sq_gettop(vm);
+ try {
+ if(SQ_FAILED(sq_compilebuffer(vm, command.c_str(), command.length(),
+ "", SQTrue)))
+ throw SquirrelError(vm, "Couldn't compile command");
+
+ sq_pushroottable(vm);
+ if(SQ_FAILED(sq_call(vm, 1, SQTrue, SQTrue)))
+ throw SquirrelError(vm, "Problem while executing command");
+
+ if(sq_gettype(vm, -1) != OT_NULL)
+ addLines(squirrel2string(vm, -1));
+ } catch(std::exception& e) {
+ addLines(e.what());
+ }
+ SQInteger newtop = sq_gettop(vm);
+ if(newtop < oldtop) {
+ log_fatal << "Script destroyed squirrel stack..." << std::endl;
+ } else {
+ sq_settop(vm, oldtop);
+ }
}
void
-Console::flush()
+Console::input(char c)
+{
+ inputBuffer.insert(inputBufferPosition, 1, c);
+ inputBufferPosition++;
+}
+
+void
+Console::backspace()
+{
+ if ((inputBufferPosition > 0) && (inputBuffer.length() > 0)) {
+ inputBuffer.erase(inputBufferPosition-1, 1);
+ inputBufferPosition--;
+ }
+}
+
+void
+Console::eraseChar()
+{
+ if (inputBufferPosition < (int)inputBuffer.length()) {
+ inputBuffer.erase(inputBufferPosition, 1);
+ }
+}
+
+void
+Console::enter()
{
- lines.push_front(outputBuffer.str());
- if (lines.size() >= 256) lines.pop_back();
- if (height < 64) {
- if (height < 4) height=4;
- height+=9;
- }
- ticks=120;
- std::cerr << outputBuffer.str() << std::flush;
- outputBuffer.str(std::string());
+ addLines("> "+inputBuffer);
+ parse(inputBuffer);
+ inputBuffer = "";
+ inputBufferPosition = 0;
+}
+
+void
+Console::scroll(int numLines)
+{
+ offset += numLines;
+ if (offset > 0) offset = 0;
+}
+
+void
+Console::show_history(int offset)
+{
+ while ((offset > 0) && (history_position != history.end())) {
+ history_position++;
+ offset--;
+ }
+ while ((offset < 0) && (history_position != history.begin())) {
+ history_position--;
+ offset++;
+ }
+ if (history_position == history.end()) {
+ inputBuffer = "";
+ inputBufferPosition = 0;
+ } else {
+ inputBuffer = *history_position;
+ inputBufferPosition = inputBuffer.length();
+ }
}
void
-Console::draw()
+Console::move_cursor(int offset)
{
- if (height == 0) return;
- if (ticks-- < 0) {
- height-=1;
- ticks=0;
- if (height < 0) height=0;
+ if (offset == -65535) inputBufferPosition = 0;
+ if (offset == +65535) inputBufferPosition = inputBuffer.length();
+ inputBufferPosition+=offset;
+ if (inputBufferPosition < 0) inputBufferPosition = 0;
+ if (inputBufferPosition > (int)inputBuffer.length()) inputBufferPosition = inputBuffer.length();
+}
+
+// Helper functions for Console::autocomplete
+// TODO: Fix rough documentation
+namespace {
+
+void sq_insert_commands(std::list<std::string>& cmds, HSQUIRRELVM vm, std::string table_prefix, std::string search_prefix);
+
+/**
+ * Acts upon key,value on top of stack:
+ * Appends key (plus type-dependent suffix) to cmds if table_prefix+key starts with search_prefix;
+ * Calls sq_insert_commands if search_prefix starts with table_prefix+key (and value is a table/class/instance);
+ */
+void
+sq_insert_command(std::list<std::string>& cmds, HSQUIRRELVM vm, std::string table_prefix, std::string search_prefix)
+{
+ const SQChar* key_chars;
+ if (SQ_FAILED(sq_getstring(vm, -2, &key_chars))) return;
+ std::string key_string = table_prefix + key_chars;
+
+ switch (sq_gettype(vm, -1)) {
+ case OT_INSTANCE:
+ key_string+=".";
+ if (search_prefix.substr(0, key_string.length()) == key_string) {
+ sq_getclass(vm, -1);
+ sq_insert_commands(cmds, vm, key_string, search_prefix);
+ sq_pop(vm, 1);
+ }
+ break;
+ case OT_TABLE:
+ case OT_CLASS:
+ key_string+=".";
+ if (search_prefix.substr(0, key_string.length()) == key_string) {
+ sq_insert_commands(cmds, vm, key_string, search_prefix);
+ }
+ break;
+ case OT_CLOSURE:
+ case OT_NATIVECLOSURE:
+ key_string+="()";
+ break;
+ default:
+ break;
+ }
+
+ if (key_string.substr(0, search_prefix.length()) == search_prefix) {
+ cmds.push_back(key_string);
+ }
+
+}
+
+/**
+ * calls sq_insert_command for all entries of table/class on top of stack
+ */
+void
+sq_insert_commands(std::list<std::string>& cmds, HSQUIRRELVM vm, std::string table_prefix, std::string search_prefix)
+{
+ sq_pushnull(vm); // push iterator
+ while (SQ_SUCCEEDED(sq_next(vm,-2))) {
+ sq_insert_command(cmds, vm, table_prefix, search_prefix);
+ sq_pop(vm, 2); // pop key, val
}
- if (height == 0) return;
+ sq_pop(vm, 1); // pop iterator
+}
- context->draw_surface(background, Vector(SCREEN_WIDTH/2 - background->get_width()/2, height - background->get_height()), LAYER_FOREGROUND1+1);
+
+}
+// End of Console::autocomplete helper functions
+
+void
+Console::autocomplete()
+{
+ //int autocompleteFrom = inputBuffer.find_last_of(" ();+", inputBufferPosition);
+ int autocompleteFrom = inputBuffer.find_last_not_of("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_->.", inputBufferPosition);
+ if (autocompleteFrom != (int)std::string::npos) {
+ autocompleteFrom += 1;
+ } else {
+ autocompleteFrom = 0;
+ }
+ std::string prefix = inputBuffer.substr(autocompleteFrom, inputBufferPosition - autocompleteFrom);
+ addLines("> "+prefix);
+
+ std::list<std::string> cmds;
+
+ ready_vm();
+
+ // append all keys of the current root table to list
+ sq_pushroottable(vm); // push root table
+ while(true) {
+ // check all keys (and their children) for matches
+ sq_insert_commands(cmds, vm, "", prefix);
+
+ // cycle through parent(delegate) table
+ SQInteger oldtop = sq_gettop(vm);
+ if(SQ_FAILED(sq_getdelegate(vm, -1)) || oldtop == sq_gettop(vm)) {
+ break;
+ }
+ sq_remove(vm, -2); // remove old table
+ }
+ sq_pop(vm, 1); // remove table
+
+ // depending on number of hits, show matches or autocomplete
+ if (cmds.size() == 0) addLines("No known command starts with \""+prefix+"\"");
+ if (cmds.size() == 1) {
+ // one match: just replace input buffer with full command
+ std::string replaceWith = cmds.front();
+ inputBuffer.replace(autocompleteFrom, prefix.length(), replaceWith);
+ inputBufferPosition += (replaceWith.length() - prefix.length());
+ }
+ if (cmds.size() > 1) {
+ // multiple matches: show all matches and set input buffer to longest common prefix
+ std::string commonPrefix = cmds.front();
+ while (cmds.begin() != cmds.end()) {
+ std::string cmd = cmds.front();
+ cmds.pop_front();
+ addLines(cmd);
+ for (int n = commonPrefix.length(); n >= 1; n--) {
+ if (cmd.compare(0, n, commonPrefix) != 0) commonPrefix.resize(n-1); else break;
+ }
+ }
+ std::string replaceWith = commonPrefix;
+ inputBuffer.replace(autocompleteFrom, prefix.length(), replaceWith);
+ inputBufferPosition += (replaceWith.length() - prefix.length());
+ }
+}
+
+void
+Console::addLines(std::string s)
+{
+ std::istringstream iss(s);
+ std::string line;
+ while (std::getline(iss, line, '\n')) addLine(line);
+}
+
+void
+Console::addLine(std::string s)
+{
+ // output line to stderr
+ std::cerr << s << std::endl;
+
+ // wrap long lines
+ std::string overflow;
+ unsigned int line_count = 0;
+ do {
+ lines.push_front(Font::wrap_to_chars(s, 99, &overflow));
+ line_count++;
+ s = overflow;
+ } while (s.length() > 0);
+
+ // trim scrollback buffer
+ while (lines.size() >= 1000)
+ lines.pop_back();
+
+ // increase console height if necessary
+ if (height < 64) {
+ if(height < 4)
+ height = 4;
+ height += fontheight * line_count;
+ }
+
+ // reset console to full opacity
+ alpha = 1.0;
+
+ // increase time that console stays open
+ if(stayOpen < 6)
+ stayOpen += 1.5;
+}
+
+void
+Console::parse(std::string s)
+{
+ // make sure we actually have something to parse
+ if (s.length() == 0) return;
+
+ // add line to history
+ history.push_back(s);
+ history_position = history.end();
+
+ // split line into list of args
+ std::vector<std::string> args;
+ size_t start = 0;
+ size_t end = 0;
+ while (1) {
+ start = s.find_first_not_of(" ,", end);
+ end = s.find_first_of(" ,", start);
+ if (start == s.npos) break;
+ args.push_back(s.substr(start, end-start));
+ }
+
+ // command is args[0]
+ if (args.size() == 0) return;
+ std::string command = args.front();
+ args.erase(args.begin());
+
+ // ignore if it's an internal command
+ if (consoleCommand(command,args)) return;
+
+ try {
+ execute_script(s);
+ } catch(std::exception& e) {
+ addLines(e.what());
+ }
+
+}
+
+bool
+Console::consoleCommand(std::string /*command*/, std::vector<std::string> /*arguments*/)
+{
+ return false;
+}
+
+bool
+Console::hasFocus()
+{
+ return focused;
+}
+
+void
+Console::show()
+{
+ if(!config->console_enabled)
+ return;
+
+ focused = true;
+ height = 256;
+ alpha = 1.0;
+ SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
+}
+
+void
+Console::hide()
+{
+ focused = false;
+ height = 0;
+ stayOpen = 0;
+
+ // clear input buffer
+ inputBuffer = "";
+ inputBufferPosition = 0;
+ SDL_EnableKeyRepeat(0, SDL_DEFAULT_REPEAT_INTERVAL);
+}
+
+void
+Console::toggle()
+{
+ if (Console::hasFocus()) {
+ Console::hide();
+ }
+ else {
+ Console::show();
+ }
+}
+
+void
+Console::update(float elapsed_time)
+{
+ if(stayOpen > 0) {
+ stayOpen -= elapsed_time;
+ if(stayOpen < 0)
+ stayOpen = 0;
+ } else if(!focused && height > 0) {
+ alpha -= elapsed_time * FADE_SPEED;
+ if(alpha < 0) {
+ alpha = 0;
+ height = 0;
+ }
+ }
+}
+
+void
+Console::draw(DrawingContext& context)
+{
+ if (height == 0)
+ return;
+
+ int layer = LAYER_GUI + 1;
+
+ context.push_transform();
+ context.set_alpha(alpha);
+ context.draw_surface(background2.get(), Vector(SCREEN_WIDTH/2 - background->get_width()/2 - background->get_width() + backgroundOffset, height - background->get_height()), layer);
+ context.draw_surface(background2.get(), Vector(SCREEN_WIDTH/2 - background->get_width()/2 + backgroundOffset, height - background->get_height()), layer);
+ for (int x = (SCREEN_WIDTH/2 - background->get_width()/2 - (static_cast<int>(ceilf((float)SCREEN_WIDTH / (float)background->get_width()) - 1) * background->get_width())); x < SCREEN_WIDTH; x+=background->get_width()) {
+ context.draw_surface(background.get(), Vector(x, height - background->get_height()), layer);
+ }
+ backgroundOffset+=10;
+ if (backgroundOffset > (int)background->get_width()) backgroundOffset -= (int)background->get_width();
int lineNo = 0;
+
+ if (focused) {
+ lineNo++;
+ float py = height-4-1 * font->get_height();
+ context.draw_text(font.get(), "> "+inputBuffer, Vector(4, py), ALIGN_LEFT, layer);
+ if (SDL_GetTicks() % 1000 < 750) {
+ int cursor_px = 2 + inputBufferPosition;
+ context.draw_text(font.get(), "_", Vector(4 + (cursor_px * font->get_text_width("X")), py), ALIGN_LEFT, layer);
+ }
+ }
+
+ int skipLines = -offset;
for (std::list<std::string>::iterator i = lines.begin(); i != lines.end(); i++) {
+ if (skipLines-- > 0) continue;
lineNo++;
- float py = height-4-lineNo*9;
- if (py < -9) break;
- context->draw_text(white_small_text, *i, Vector(BORDER_X, py), LEFT_ALLIGN, LAYER_FOREGROUND1+1);
+ float py = height - 4 - lineNo*font->get_height();
+ if (py < -font->get_height()) break;
+ context.draw_text(font.get(), *i, Vector(4, py), ALIGN_LEFT, layer);
}
+ context.pop_transform();
}
-int Console::height = 0;
-std::list<std::string> Console::lines;
+Console* Console::instance = NULL;
+int Console::inputBufferPosition = 0;
+std::string Console::inputBuffer;
ConsoleStreamBuffer Console::outputBuffer;
std::ostream Console::output(&Console::outputBuffer);
projects / supertux.git / blobdiff