added 3dengfx into the repo, probably not the correct version for this

[summerhack] / src / 3dengfx / src / dsys / cmd.cpp

diff --git a/src/3dengfx/src/dsys/cmd.cpp b/src/3dengfx/src/dsys/cmd.cpp
new file mode 100644 (file)
index 0000000..c99ff27
--- /dev/null
+++ b/src/3dengfx/src/dsys/cmd.cpp
@@ -0,0 +1,171 @@
+/*
+This file is part of 3dengfx demosystem.
+
+Copyright (c) 2004, 2005 John Tsiombikas <nuclear@siggraph.org>
+
+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
+*/
+
+/* demosystem script controlled commands
+ *
+ * Author: John Tsiombikas 2005
+ */
+
+#include <cassert>
+#include "cmd.hpp"
+#include "script.h"
+#include "dsys.hpp"
+#include "part.hpp"
+#include "fx.hpp"
+#include "common/err_msg.h"
+
+using namespace dsys;
+using namespace cmd;
+
+// command handler prototypes
+static bool start_part(const char *pname, const char **args);
+static bool end_part(const char *pname, const char **args);
+static bool rename_part(const char *pname, const char **args);
+static bool set_render_target(const char *pname, const char **args);
+static bool set_clear(const char *pname, const char **args);
+static bool end(const char *unused, const char **args);
+static bool effect(const char *fxname, const char **args);
+
+static bool (*ftbl[64])(const char*, const char**);
+
+void cmd::register_commands() {
+       ftbl[CMD_START_PART] = start_part;
+       ftbl[CMD_END_PART] = end_part;
+       ftbl[CMD_RENAME_PART] = rename_part;
+       ftbl[CMD_SET_RTARGET] = set_render_target;
+       ftbl[CMD_SET_CLEAR] = set_clear;
+       ftbl[CMD_END] = end;
+       ftbl[CMD_FX] = effect;
+}
+
+bool cmd::command(CommandType cmd_id, const char *pname, const char **args) {
+       assert(ftbl[cmd_id]);
+
+       return ftbl[cmd_id](pname, args);
+}
+
+static bool start_part(const char *pname, const char **args) {
+       Part *part = get_part(pname);
+       if(part) {
+               info("start_part(%s)", pname);
+               start_part(part);
+               return true;
+       }
+       return false;
+}
+
+static bool end_part(const char *pname, const char **args) {
+       Part *part = get_part(pname);
+       if(part) {
+               info("end_part(%s)", pname);
+               stop_part(part);
+               return true;
+       }
+       return false;
+}
+
+static bool rename_part(const char *pname, const char **args) {
+       Part *part = get_part(pname);
+       if(part && args[0]) {
+               info("rename_part(%s, %s)", pname, args[0]);
+               remove_part(part);
+               part->set_name(args[0]);
+               add_part(part);
+               return true;
+       }
+       return false;
+}
+
+static bool set_render_target(const char *pname, const char **args) {
+       Part *part = get_part(pname);
+       if(part && args[0]) {
+               int tnum;
+
+               // check for valid render target specifier (fb, t0, t1, t2, t3)
+               if(!strcmp(args[0], "fb")) {
+                       tnum = (int)RT_FB;
+               } else {
+                       if(args[0][0] != 't' || !isdigit(args[0][1]) || args[0][2] ||
+                               (tnum = atoi(args[0]+1)) < 0 || tnum > 3) {
+                               return false;
+                       }
+               }
+
+               info("set_rtarg(%s, %s)", pname, args[0]);
+               part->set_target((RenderTarget)tnum);
+               return true;
+       }
+       return false;
+}
+
+static bool set_clear(const char *pname, const char **args) {
+       Part *part = get_part(pname);
+       if(part && args[0]) {
+               bool enable;
+               if(!strcmp(args[0], "true")) {
+                       enable = true;
+               } else if(!strcmp(args[0], "false")) {
+                       enable = false;
+               } else {
+                       return false;
+               }
+
+               info("set_clear(%s, %s)", pname, enable ? "true" : "false");
+               part->set_clear(enable);
+               return true;
+       }
+       return false;
+}
+
+static bool end(const char *unused, const char **args) {
+       if(unused && *unused) return false;
+
+       info("end");
+       end_demo();
+       return true;
+}
+
+static bool effect(const char *fxname, const char **args) {
+       ImageFx *fx;
+       
+       if(!strcmp(fxname, "neg")) {
+               fx = new FxNegative;
+       } else if(!strcmp(fxname, "flash")) {
+               fx = new FxFlash;
+       } else if(!strcmp(fxname, "overlay")) {
+               fx = new FxOverlay;
+       } else if(!strcmp(fxname, "fade")) {
+               fx = new FxFade;
+       } else {
+               error("unknown effect: %s, ignoring", fxname);
+               return false;
+       }
+
+       if(!fx->parse_script_args(args)) {
+               error("fx(%s): invalid syntax", fxname);
+               delete fx;
+               return false;
+       }
+
+       info("fx(%s)", fxname);
+       add_image_fx(fx);
+
+       return true;
+}