ILLUSIONS: More work on the script system

1 files changed, 126 insertions, 0 deletions

diff --git a/engines/illusions/scriptman.cpp b/engines/illusions/scriptman.cpp
new file mode 100644
index 0000000000..922ce605bb
--- /dev/null
+++ b/engines/illusions/scriptman.cpp
@@ -0,0 +1,126 @@
+/* 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "illusions/illusions.h"
+#include "illusions/scriptman.h"
+
+namespace Illusions {
+
+// ActiveScenes
+
+void ActiveScenes::clear() {
+	_stack.clear();
+}
+
+void ActiveScenes::push(uint32 sceneId) {
+	ActiveScene activeScene;
+	activeScene._sceneId = sceneId;
+	activeScene._pauseCtr = 0;
+	_stack.push(activeScene);
+}
+
+void ActiveScenes::pop() {
+	_stack.pop();
+}
+
+void ActiveScenes::pauseActiveScene() {
+	++_stack.top()._pauseCtr;
+}
+
+void ActiveScenes::unpauseActiveScene() {
+	--_stack.top()._pauseCtr;
+}
+
+int ActiveScenes::getActiveScenesCount() {
+	return _stack.size();
+}
+
+void ActiveScenes::getActiveSceneInfo(uint index, uint32 *sceneId, int *pauseCtr) {
+	if (sceneId)
+		*sceneId = _stack[index]._sceneId;
+	if (pauseCtr)
+		*pauseCtr = _stack[index]._pauseCtr;
+}
+
+uint32 ActiveScenes::getCurrentScene() {
+	if (_stack.size() > 0)
+		return _stack.top()._sceneId;
+	return 0;
+}
+
+bool ActiveScenes::isSceneActive(uint32 sceneId) {
+	for (uint i = 0; i < _stack.size(); ++i)
+		if (_stack[i]._sceneId == sceneId && _stack[i]._pauseCtr <= 0)
+			return true;
+	return false;
+}
+
+// ScriptStack
+
+ScriptStack::ScriptStack() {
+	clear();
+}
+
+void ScriptStack::clear() {
+	for (uint i = 0; i < 256; ++i)
+		_stack[i] = (int16)0xEEEE;
+	_stackPos = 256;
+}
+
+void ScriptStack::push(int16 value) {
+	--_stackPos;
+	if (_stackPos > 0)
+		_stack[_stackPos] = value;
+}
+
+int16 ScriptStack::pop() {
+	int16 value = 0;
+	if (_stackPos < 256) {
+		value = _stack[_stackPos];
+		_stack[_stackPos] = (int16)0xEEEE;
+		++_stackPos;
+	}
+	return value;
+}
+
+int16 ScriptStack::peek() {
+	int16 value = 0;
+	if (_stackPos < 256)
+		value = _stack[_stackPos];
+	return value;
+}
+
+// ScriptMan
+
+ScriptMan::ScriptMan(IllusionsEngine *vm)
+	: _vm(vm) {
+}
+
+ScriptMan::~ScriptMan() {
+}
+
+void ScriptMan::setSceneIdThreadId(uint32 theSceneId, uint32 theThreadId) {
+	_theSceneId = theSceneId;
+	_theThreadId = theThreadId;
+}
+
+} // End of namespace Illusions