Initial commit

engines/ags/engine/script/executing_script.cpp

@@ -0,0 +1,102 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "ags/globals.h"
+#include "ags/engine/script/executing_script.h"
+#include "ags/engine/debugging/debug_log.h"
+#include "ags/engine/debugging/debugger.h"
+#include "ags/engine/script/script.h"
+#include "ags/shared/ac/game_version.h"
+
+namespace AGS3 {
+
+QueuedScript::QueuedScript()
+	: Instance(kScInstGame)
+	, ParamCount(0) {
+}
+
+int ExecutingScript::queue_action(PostScriptAction act, int data, const char *aname) {
+	if (numPostScriptActions >= MAX_QUEUED_ACTIONS)
+		quitprintf("!%s: Cannot queue action, post-script queue full", aname);
+
+	// A strange behavior in pre-2.7.0 games allowed to call NewRoom right after
+	// RestartGame, cancelling RestartGame. Probably an unintended effect.
+	// We try to emulate this here, by simply removing all ePSARestartGame.
+	if ((_G(loaded_game_file_version) < kGameVersion_270) && (act == ePSANewRoom)) {
+		for (int i = 0; i < numPostScriptActions; i++) {
+			if (postScriptActions[i] == ePSARestartGame) {
+				debug("Removing spurious RestartGame event! index = %d numPostScriptActions = %d", i, numPostScriptActions);
+				for (int j = i; j < numPostScriptActions; j++) {
+					postScriptActions[j] = postScriptActions[j + 1];
+					postScriptActionData[j] = postScriptActionData[j + 1];
+					postScriptActionNames[j] = postScriptActionNames[j + 1];
+					postScriptActionPositions[j] = postScriptActionPositions[j + 1];
+				}
+				i--; // make sure to remove multiple ePSARestartGame
+				numPostScriptActions--;
+			}
+		}
+	}
+
+	if (numPostScriptActions > 0) {
+		// if something that will terminate the room has already
+		// been queued, don't allow a second thing to be queued
+		switch (postScriptActions[numPostScriptActions - 1]) {
+		case ePSANewRoom:
+		case ePSARestoreGame:
+		case ePSARestoreGameDialog:
+		case ePSARunAGSGame:
+		case ePSARestartGame:
+			quitprintf("!%s: Cannot run this command, since there was a %s command already queued to run in \"%s\", line %d",
+			           aname, postScriptActionNames[numPostScriptActions - 1],
+			           postScriptActionPositions[numPostScriptActions - 1].Section.GetCStr(), postScriptActionPositions[numPostScriptActions - 1].Line);
+			break;
+		default:
+			break;
+		}
+	}
+
+	postScriptActions[numPostScriptActions] = act;
+	postScriptActionData[numPostScriptActions] = data;
+	postScriptActionNames[numPostScriptActions] = aname;
+	get_script_position(postScriptActionPositions[numPostScriptActions]);
+	numPostScriptActions++;
+	return numPostScriptActions - 1;
+}
+
+void ExecutingScript::run_another(const char *namm, ScriptInstType scinst, size_t param_count, const RuntimeScriptValue *params) {
+	if (numanother < MAX_QUEUED_SCRIPTS)
+		numanother++;
+	else {
+		/*debug_script_warn("Warning: too many scripts to run, ignored %s(%d,%d)",
+		script_run_another[numanother - 1], run_another_p1[numanother - 1],
+		run_another_p2[numanother - 1]);*/
+	}
+	int thisslot = numanother - 1;
+	QueuedScript &script = ScFnQueue[thisslot];
+	script.FnName.SetString(namm, MAX_FUNCTION_NAME_LEN);
+	script.Instance = scinst;
+	script.ParamCount = param_count;
+	for (size_t p = 0; p < MAX_QUEUED_PARAMS && p < param_count; ++p)
+		script.Params[p] = params[p];
+}
+
+} // namespace AGS3