Initial commit

engines/glk/alan3/msg.cpp

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+/* 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 "glk/alan3/msg.h"
+#include "glk/alan3/memory.h"
+#include "glk/alan3/inter.h"
+#include "glk/alan3/exe.h"
+#include "glk/alan3/lists.h"
+
+namespace Glk {
+namespace Alan3 {
+
+/* PUBLIC DATA */
+MessageEntry *msgs;         /* Message table pointer */
+
+/*======================================================================*/
+void printMessage(MsgKind msg) {    /* IN - message number */
+	Context ctx;
+	interpret(ctx, msgs[msg].stms);
+}
+
+
+static void (*errorHandler)(MsgKind msg) = nullptr;
+
+/*======================================================================*/
+void setErrorHandler(void (*handler)(MsgKind msg)) { /* IN - The error message number */
+	// N.B. The error handler must not return because the standard handler does not...
+	errorHandler = handler;
+}
+
+
+/*======================================================================*/
+void error(CONTEXT, MsgKind msgno) { /* IN - The error message number */
+	if (errorHandler != nullptr)
+		errorHandler(msgno);
+	else {
+		/* Print an error message and longjmp to main loop. */
+		if (msgno != NO_MSG)
+			printMessage(msgno);
+		LONG_JUMP_LABEL("returnError");
+	}
+}
+
+
+/*======================================================================*/
+void abortPlayerCommand(CONTEXT) {
+	error(context, NO_MSG);
+}
+
+
+/*======================================================================*/
+void printMessageWithInstanceParameter(MsgKind message, int instanceId) {
+	ParameterArray parameters = newParameterArray();
+	addParameterForInstance(parameters, instanceId);
+	printMessageWithParameters(message, parameters);
+	freeParameterArray(parameters);
+}
+
+
+/*======================================================================*/
+void printMessageUsing2InstanceParameters(MsgKind message, int instance1, int instance2) {
+	ParameterArray parameters = newParameterArray();
+	addParameterForInstance(parameters, instance1);
+	addParameterForInstance(parameters, instance2);
+	printMessageWithParameters(message, parameters);
+	freeParameterArray(parameters);
+}
+
+
+/*======================================================================*/
+void printMessageWithParameters(MsgKind msg, Parameter *messageParameters) {
+	Parameter *savedParameters = newParameterArray();
+	Context ctx;
+
+	copyParameterArray(savedParameters, globalParameters);
+	copyParameterArray(globalParameters, messageParameters);
+
+	interpret(ctx, msgs[msg].stms);
+
+	copyParameterArray(globalParameters, savedParameters);
+	freeParameterArray(savedParameters);
+}
+
+} // End of namespace Alan3
+} // End of namespace Glk