2 files changed, 172 insertions, 0 deletions
diff --git a/engines/zvision/scripting/sidefx/distort_node.cpp b/engines/zvision/scripting/sidefx/distort_node.cpp
new file mode 100644
index 0000000000..576a1f8592
--- /dev/null
+++ b/engines/zvision/scripting/sidefx/distort_node.cpp
@@ -0,0 +1,109 @@
+/* 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 "common/scummsys.h"
+
+#include "zvision/scripting/sidefx/distort_node.h"
+
+#include "zvision/zvision.h"
+#include "zvision/scripting/script_manager.h"
+#include "zvision/graphics/render_manager.h"
+#include "zvision/graphics/render_table.h"
+
+#include "common/stream.h"
+
+
+namespace ZVision {
+
+DistortNode::DistortNode(ZVision *engine, uint32 key, int16 speed, float st_angl, float en_angl, float st_lin, float en_lin)
+	: SideFX(engine, key, SIDEFX_DISTORT) {
+
+	_angle = _engine->getRenderManager()->getRenderTable()->getAngle();
+	_linScale = _engine->getRenderManager()->getRenderTable()->getLinscale();
+
+	_speed = speed;
+	_incr = true;
+	_st_angl = st_angl;
+	_en_angl = en_angl;
+	_st_lin = st_lin;
+	_en_lin = en_lin;
+
+	_curFrame = 1.0;
+
+	_diff_angl = en_angl - st_angl;
+	_diff_lin = en_lin - st_lin;
+
+	_frmSpeed = (float)speed / 15.0;
+	_frames = ceil((5.0 - _frmSpeed * 2.0) / _frmSpeed);
+	if (_frames <= 0)
+		_frames = 1;
+
+	if (_key != StateKey_NotSet)
+		_engine->getScriptManager()->setStateValue(_key, 1);
+}
+
+DistortNode::~DistortNode() {
+	setParams(_angle, _linScale);
+}
+
+bool DistortNode::process(uint32 deltaTimeInMillis) {
+
+	float updTime = deltaTimeInMillis / (1000.0 / 60.0);
+
+	if (_incr)
+		_curFrame += updTime;
+	else
+		_curFrame -= updTime;
+
+	if (_curFrame < 1.0) {
+		_curFrame = 1.0;
+		_incr = true;
+	} else if (_curFrame > _frames) {
+		_curFrame = _frames;
+		_incr = false;
+	}
+
+	float diff = (1.0 / (5.0 - (_curFrame * _frmSpeed))) / (5.0 - _frmSpeed);
+
+
+	setParams(_st_angl + diff * _diff_angl, _st_lin + diff * _diff_lin);
+
+	return false;
+}
+
+void DistortNode::setParams(float angl, float linScale) {
+	RenderTable *table = _engine->getRenderManager()->getRenderTable();
+	if (table->getRenderState() == RenderTable::PANORAMA) {
+		table->setPanoramaFoV(angl);
+		table->setPanoramaScale(linScale);
+		table->generateRenderTable();
+		_engine->getRenderManager()->markDirty();
+	} else if (table->getRenderState() == RenderTable::TILT) {
+		table->setTiltFoV(angl);
+		table->setTiltScale(linScale);
+		table->generateRenderTable();
+		_engine->getRenderManager()->markDirty();
+	}
+}
+
+
+} // End of namespace ZVision
diff --git a/engines/zvision/scripting/sidefx/distort_node.h b/engines/zvision/scripting/sidefx/distort_node.h
new file mode 100644
index 0000000000..cba9c5eff2
--- /dev/null
+++ b/engines/zvision/scripting/sidefx/distort_node.h
@@ -0,0 +1,63 @@
+/* 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.
+ *
+ */
+
+#ifndef ZVISION_DISTORT_NODE_H
+#define ZVISION_DISTORT_NODE_H
+
+#include "zvision/scripting/sidefx.h"
+
+namespace ZVision {
+
+class ZVision;
+
+class DistortNode : public SideFX {
+public:
+	DistortNode(ZVision *engine, uint32 key, int16 speed, float st_angl, float en_angl, float st_lin, float en_lin);
+	~DistortNode();
+
+	bool process(uint32 deltaTimeInMillis);
+
+private:
+	int16 _speed;
+	float _st_angl;
+	float _en_angl;
+	float _st_lin;
+	float _en_lin;
+
+	float _frmSpeed;
+	float _diff_angl;
+	float _diff_lin;
+	bool _incr;
+	int16 _frames;
+
+	float _curFrame;
+
+	float _angle;
+	float _linScale;
+
+private:
+	void setParams(float angl, float linScale);
+};
+
+} // End of namespace ZVision
+
+#endif