Initial commit

engines/bladerunner/item.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 "bladerunner/item.h"
+
+#include "bladerunner/bladerunner.h"
+
+#include "bladerunner/savefile.h"
+#include "bladerunner/slice_renderer.h"
+#include "bladerunner/zbuffer.h"
+
+namespace BladeRunner {
+
+Item::Item(BladeRunnerEngine *vm) {
+	_vm = vm;
+
+	_itemId = -1;
+	_setId = -1;
+
+	_animationId = -1;
+	_position.x = 0;
+	_position.y = 0;
+	_position.z = 0;
+	_facing = 0;
+	_angle = 0.0f;
+	_width = 0;
+	_height = 0;
+	_boundingBox.setXYZ(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f);
+	_screenX = 0;
+	_screenY = 0;
+	_depth = 0.0f;
+	_isTarget = false;
+	_isSpinning = false;
+	_facingChange = 0;
+	_isVisible = true;
+	_isPoliceMazeEnemy = false;
+	_screenRectangle.bottom = -1;
+	_screenRectangle.right = -1;
+	_screenRectangle.top = -1;
+	_screenRectangle.left = -1;
+}
+
+void Item::getXYZ(float *x, float *y, float *z) const {
+	*x = _position.x;
+	*y = _position.y;
+	*z = _position.z;
+}
+
+void Item::getWidthHeight(int *width, int *height) const {
+	*width = _width;
+	*height = _height;
+}
+
+void Item::getAnimationId(int *animationId) const {
+	*animationId = _animationId;
+}
+
+void Item::setFacing(int facing) {
+	_facing = facing;
+	_angle = _facing * (M_PI / 512.0f);
+}
+
+bool Item::tick(Common::Rect *screenRect, bool special) {
+	if (!_isVisible) {
+		*screenRect = Common::Rect();
+		return false;
+	}
+
+	bool isVisibleFlag = false;
+
+	Vector3 position(_position.x, -_position.z, _position.y);
+	int animationId = _animationId + (special ? 1 : 0);
+	_vm->_sliceRenderer->drawInWorld(animationId, 0, position, M_PI - _angle, 1.0f, _vm->_surfaceFront, _vm->_zbuffer->getData());
+	_vm->_sliceRenderer->getScreenRectangle(&_screenRectangle, animationId, 0, position, M_PI - _angle, 1.0f);
+
+	if (!_screenRectangle.isEmpty()) {
+		*screenRect = _screenRectangle;
+		isVisibleFlag = true;
+	} else {
+		*screenRect = Common::Rect();
+	}
+
+	if (_isSpinning) {
+		_facing += _facingChange;
+
+		if (_facing >= 1024) {
+			_facing -= 1024;
+		} else if (_facing < 0) {
+			_facing += 1024;
+		}
+		_angle = _facing * (M_PI / 512.0f);
+
+		if (_facingChange > 0) {
+			_facingChange = _facingChange - 20;
+			if (_facingChange < 0) {
+				_facingChange = 0;
+				_isSpinning = false;
+			}
+		} else if (_facingChange < 0) {
+			_facingChange = _facingChange + 20;
+			if (_facingChange > 0) {
+				_facingChange = 0;
+				_isSpinning = false;
+			}
+		} else {
+			_isSpinning = false;
+		}
+	}
+
+	return isVisibleFlag;
+}
+
+// setXYZ() recalculates the item's bounding box,
+// but in addition to the item's (Vector3) position
+// it takes into account the item's width and height
+void Item::setXYZ(Vector3 position) {
+	_position = position;
+	int halfWidth = _width / 2;
+	_boundingBox.setXYZ(_position.x - halfWidth, _position.y, _position.z - halfWidth,
+	                    _position.x + halfWidth, _position.y + _height, _position.z + halfWidth);
+	Vector3 screenPosition = _vm->_view->calculateScreenPosition(_position);
+	_screenX = screenPosition.x;
+	_screenY = screenPosition.y;
+	_depth = screenPosition.z * 25.5f;
+}
+
+void Item::setup(int itemId, int setId, int animationId, Vector3 position, int facing, int height, int width, bool isTargetFlag, bool isVisibleFlag, bool isPoliceMazeEnemyFlag) {
+	_itemId = itemId;
+	_setId = setId;
+	_animationId = animationId;
+	_facing = facing;
+	_angle = facing * (M_PI / 512.0f);
+	_width = width;
+	_height = height;
+	_isTarget = isTargetFlag;
+	_isVisible = isVisibleFlag;
+	_isPoliceMazeEnemy = isPoliceMazeEnemyFlag;
+	setXYZ(position);
+	_screenRectangle.bottom = -1;
+	_screenRectangle.right = -1;
+	_screenRectangle.top = -1;
+	_screenRectangle.left = -1;
+}
+
+void Item::spinInWorld() {
+	_isSpinning = true;
+	if (_vm->_rnd.getRandomNumberRng(1, 2) == 1) {
+		_facingChange = -340;
+	} else {
+		_facingChange = 340;
+	}
+}
+
+bool Item::isUnderMouse(int mouseX, int mouseY) const {
+	return _isVisible
+	    && mouseX >= _screenRectangle.left   - 10
+	    && mouseX <= _screenRectangle.right  + 10
+	    && mouseY >= _screenRectangle.top    - 10
+	    && mouseY <= _screenRectangle.bottom + 10;
+}
+
+void Item::save(SaveFileWriteStream &f) {
+	f.writeInt(_setId);
+	f.writeInt(_itemId);
+	f.writeBoundingBox(_boundingBox, false);
+	f.writeRect(_screenRectangle);
+	f.writeInt(_animationId);
+	f.writeVector3(_position);
+	f.writeInt(_facing);
+	f.writeFloat(_angle);
+	f.writeInt(_width);
+	f.writeInt(_height);
+	f.writeInt(_screenX);
+	f.writeInt(_screenY);
+	f.writeFloat(_depth);
+	f.writeBool(_isTarget);
+	f.writeBool(_isSpinning);
+	f.writeInt(_facingChange);
+	f.writeFloat(0.0f); // _viewAngle
+	f.writeBool(_isVisible);
+	f.writeBool(_isPoliceMazeEnemy);
+}
+
+void Item::load(SaveFileReadStream &f) {
+	_setId = f.readInt();
+	_itemId = f.readInt();
+	_boundingBox = f.readBoundingBox(false);
+	_screenRectangle = f.readRect();
+	_animationId = f.readInt();
+	_position = f.readVector3();
+	_facing  = f.readInt();
+	_angle = f.readFloat();
+	_width = f.readInt();
+	_height = f.readInt();
+	_screenX = f.readInt();
+	_screenY = f.readInt();
+	_depth = f.readFloat();
+	_isTarget = f.readBool();
+	_isSpinning = f.readBool();
+	_facingChange = f.readInt();
+	f.skip(4);
+	_isVisible = f.readBool();
+	_isPoliceMazeEnemy = f.readBool();
+}
+
+} // End of namespace BladeRunner