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engines/scumm/he/basketball/collision/bball_collision_object.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 "scumm/he/basketball/collision/bball_collision_support_obj.h"
+#include "scumm/he/basketball/collision/bball_collision_object.h"
+#include "scumm/he/basketball/collision/bball_collision_sphere.h"
+#include "scumm/he/basketball/collision/bball_collision_box.h"
+#include "scumm/he/basketball/collision/bball_collision_cylinder.h"
+#include "scumm/he/basketball/collision/bball_collision_stack.h"
+#include "scumm/he/basketball/collision/bball_collision_node.h"
+#include "scumm/he/basketball/collision/bball_collision_tree.h"
+
+namespace Scumm {
+
+ICollisionObject::ICollisionObject(EObjectShape shape) : _objectShape(shape),
+														 _objectID(0),
+														 _objectType(kNoObjectType),
+														 _description(""),
+														 _collisionEfficiency(0.0F),
+														 _friction(0.0F),
+														 _soundNumber(0),
+														 _ignore(false) {
+	_velocity.x = 0.0F;
+	_velocity.y = 0.0F;
+	_velocity.z = 0.0F;
+}
+
+bool ICollisionObject::operator==(const ICollisionObject &otherObject) const {
+	return ((otherObject._objectShape == _objectShape) &&
+			(otherObject._objectType == _objectType) &&
+			(otherObject._objectID == _objectID));
+}
+
+float ICollisionObject::getObjectDistance(const ICollisionObject &targetObject) const {
+	float result;
+
+	switch (targetObject._objectShape) {
+	case kNoObjectShape:
+		warning("ICollisionObject::getObjectDistance(): Tried to interact with an object of undefined type");
+		result = 0.0F;
+		break;
+	case kSphere:
+		result = getObjectDistance(dynamic_cast<const CCollisionSphere &>(targetObject));
+		break;
+	case kBox:
+		result = getObjectDistance(dynamic_cast<const CCollisionBox &>(targetObject));
+		break;
+	case kCylinder:
+		result = getObjectDistance(dynamic_cast<const CCollisionCylinder &>(targetObject));
+		break;
+	default:
+		warning("ICollisionObject::getObjectDistance(): Tried to interact with an object of undefined type");
+		result = 0.0F;
+	}
+
+	return result;
+}
+
+bool ICollisionObject::testObjectIntersection(const ICollisionObject &targetObject, U32Distance3D *distance) const {
+	bool result;
+
+	switch (targetObject._objectShape) {
+	case kNoObjectShape:
+		warning("ICollisionObject::testObjectIntersection(): Tried to interact with an object of undefined type");
+		result = false;
+		break;
+	case kSphere:
+		result = testObjectIntersection(dynamic_cast<const CCollisionSphere &>(targetObject), distance);
+		break;
+	case kBox:
+		result = testObjectIntersection(dynamic_cast<const CCollisionBox &>(targetObject), distance);
+		break;
+	case kCylinder:
+		result = testObjectIntersection(dynamic_cast<const CCollisionCylinder &>(targetObject), distance);
+		break;
+	default:
+		warning("ICollisionObject::testObjectIntersection(): Tried to interact with an object of undefined type");
+		result = false;
+	}
+
+	return result;
+}
+
+bool ICollisionObject::validateCollision(const ICollisionObject &targetObject, U32Distance3D *distance) {
+	if (_ignore)
+		return true;
+
+	bool result;
+
+	switch (targetObject._objectShape) {
+	case kNoObjectShape:
+		warning("ICollisionObject::validateCollision(): Tried to interact with an object of undefined type");
+		result = false;
+		break;
+	case kSphere:
+		result = validateCollision(dynamic_cast<const CCollisionSphere &>(targetObject), distance);
+		break;
+	case kBox:
+		result = validateCollision(dynamic_cast<const CCollisionBox &>(targetObject), distance);
+		break;
+	case kCylinder:
+		result = validateCollision(dynamic_cast<const CCollisionCylinder &>(targetObject), distance);
+		break;
+	default:
+		warning("ICollisionObject::validateCollision(): Tried to interact with an object of undefined type");
+		result = false;
+	}
+
+	return result;
+}
+
+bool ICollisionObject::backOutOfObject(const ICollisionObject &targetObject, U32Distance3D *distance, float *timeUsed) {
+	if (_ignore)
+		return true;
+
+	bool result;
+
+	switch (targetObject._objectShape) {
+	case kNoObjectShape:
+		warning("ICollisionObject::backOutOfObject(): Tried to interact with an object of undefined type");
+		result = false;
+		break;
+	case kSphere:
+		result = backOutOfObject(dynamic_cast<const CCollisionSphere &>(targetObject), distance, timeUsed);
+		break;
+	case kBox:
+		result = backOutOfObject(dynamic_cast<const CCollisionBox &>(targetObject), distance, timeUsed);
+		break;
+	case kCylinder:
+		result = backOutOfObject(dynamic_cast<const CCollisionCylinder &>(targetObject), distance, timeUsed);
+		break;
+	default:
+		warning("ICollisionObject::backOutOfObject(): Tried to interact with an object of undefined type");
+		result = false;
+	}
+
+	return result;
+}
+
+bool ICollisionObject::nudgeObject(const ICollisionObject &targetObject, U32Distance3D *distance, float *timeUsed) {
+	if (_velocity.magnitude() == 0)
+		return true;
+
+	if (_ignore)
+		return true;
+
+	if (*timeUsed == 0)
+		return true;
+
+	bool result;
+
+	switch (targetObject._objectShape) {
+	case kNoObjectShape:
+		warning("ICollisionObject::nudgeObject(): Tried to interact with an object of undefined type");
+		result = false;
+		break;
+	case kSphere:
+		result = nudgeObject(dynamic_cast<const CCollisionSphere &>(targetObject), distance, timeUsed);
+		break;
+	case kBox:
+		result = nudgeObject(dynamic_cast<const CCollisionBox &>(targetObject), distance, timeUsed);
+		break;
+	case kCylinder:
+		result = nudgeObject(dynamic_cast<const CCollisionCylinder &>(targetObject), distance, timeUsed);
+		break;
+	default:
+		warning("ICollisionObject::nudgeObject(): Tried to interact with an object of undefined type");
+		result = false;
+	}
+
+	return result;
+}
+
+bool ICollisionObject::isCollisionHandled(const ICollisionObject &targetObject) const {
+	bool result;
+
+	switch (targetObject._objectShape) {
+	case kNoObjectShape:
+		warning("ICollisionObject::isCollisionHandled(): Tried to interact with an object of undefined type");
+		result = false;
+		break;
+	case kSphere:
+		result = isCollisionHandled(dynamic_cast<const CCollisionSphere &>(targetObject));
+		break;
+	case kBox:
+		result = isCollisionHandled(dynamic_cast<const CCollisionBox &>(targetObject));
+		break;
+	case kCylinder:
+		result = isCollisionHandled(dynamic_cast<const CCollisionCylinder &>(targetObject));
+		break;
+	default:
+		warning("ICollisionObject::isCollisionHandled(): Tried to interact with an object of undefined type");
+		result = false;
+	}
+
+	return result;
+}
+
+void ICollisionObject::handleCollisions(CCollisionObjectVector *collisionVector, float *timeUsed, bool advanceObject) {
+	if (_velocity.magnitude() == 0)
+		return;
+
+	if (_ignore)
+		return;
+
+	for (CCollisionObjectVector::const_iterator objectIt = collisionVector->begin(); objectIt != collisionVector->end(); ++objectIt) {
+		const ICollisionObject *pTargetObject = *objectIt;
+
+		U32Distance3D distance;
+		testObjectIntersection(*pTargetObject, &distance);
+
+		switch (pTargetObject->_objectShape) {
+		case kNoObjectShape:
+			warning("ICollisionObject::handleCollisions(): Tried to interact with an object of undefined type");
+			break;
+		case kSphere:
+			handleCollision(*static_cast<const CCollisionSphere *>(pTargetObject), timeUsed, &distance, advanceObject);
+			break;
+		case kBox:
+			handleCollision(*static_cast<const CCollisionBox *>(pTargetObject), timeUsed, &distance, advanceObject);
+			break;
+		case kCylinder:
+			handleCollision(*static_cast<const CCollisionCylinder *>(pTargetObject), timeUsed, &distance, advanceObject);
+			break;
+		default:
+			warning("ICollisionObject::handleCollisions(): Tried to interact with an object of undefined type");
+		}
+	}
+}
+
+bool ICollisionObject::isOnObject(const ICollisionObject &targetObject, const U32Distance3D &distance) const {
+	bool result;
+
+	switch (targetObject._objectShape) {
+	case kNoObjectShape:
+		warning("ICollisionObject::isOnObject(): Tried to interact with an object of undefined type");
+		result = false;
+		break;
+	case kSphere:
+		result = isOnObject(static_cast<const CCollisionSphere &>(targetObject), distance);
+		break;
+	case kBox:
+		result = isOnObject(static_cast<const CCollisionBox &>(targetObject), distance);
+		break;
+	case kCylinder:
+		result = isOnObject(static_cast<const CCollisionCylinder &>(targetObject), distance);
+		break;
+	default:
+		warning("ICollisionObject::isOnObject(): Tried to interact with an object of undefined type");
+		result = false;
+	}
+
+	return result;
+}
+
+U32FltPoint3D ICollisionObject::findNearestPoint(const U32FltPoint3D &testPoint) const {
+	return testPoint;
+}
+
+float ICollisionObject::getPenetrationTime(const ICollisionObject &targetObject, const U32Distance3D &distance, EDimension dimension) const {
+	float result;
+
+	switch (targetObject._objectShape) {
+	case kNoObjectShape:
+		warning("ICollisionObject::getPenetrationTime(): Tried to interact with an object of undefined type");
+		result = 0.0F;
+		break;
+	case kSphere:
+		result = getPenetrationTime(*static_cast<const CCollisionSphere *>(&targetObject), distance, dimension);
+		break;
+	case kBox:
+		result = getPenetrationTime(*static_cast<const CCollisionBox *>(&targetObject), distance, dimension);
+		break;
+	case kCylinder:
+		result = getPenetrationTime(*static_cast<const CCollisionCylinder *>(&targetObject), distance, dimension);
+		break;
+	default:
+		warning("ICollisionObject::getPenetrationTime(): Tried to interact with an object of undefined type");
+		result = 0.0F;
+	}
+
+	return result;
+}
+
+void ICollisionObject::defineReflectionPlane(const ICollisionObject &targetObject, const U32Distance3D &distance, U32Plane *collisionPlane) const {
+	switch (targetObject._objectShape) {
+	case kNoObjectShape:
+		warning("ICollisionObject::defineReflectionPlane(): Tried to interact with an object of undefined type");
+		break;
+	case kSphere:
+		defineReflectionPlane(dynamic_cast<const CCollisionSphere &>(targetObject), distance, collisionPlane);
+		break;
+	case kBox:
+		defineReflectionPlane(dynamic_cast<const CCollisionBox &>(targetObject), distance, collisionPlane);
+		break;
+	case kCylinder:
+		defineReflectionPlane(dynamic_cast<const CCollisionCylinder &>(targetObject), distance, collisionPlane);
+		break;
+	default:
+		warning("ICollisionObject::defineReflectionPlane(): Tried to interact with an object of undefined type");
+	}
+}
+
+void ICollisionObject::defineReflectionPlane(const CCollisionSphere &targetObject, const U32Distance3D &distance, U32Plane *collisionPlane) const {
+	collisionPlane->clear();
+}
+
+void ICollisionObject::defineReflectionPlane(const CCollisionBox &targetObject, const U32Distance3D &distance, U32Plane *collisionPlane) const {
+	collisionPlane->clear();
+}
+
+void ICollisionObject::defineReflectionPlane(const CCollisionCylinder &targetObject, const U32Distance3D &distance, U32Plane *collisionPlane) const {
+	collisionPlane->clear();
+}
+
+} // End of namespace Scumm