CWE-ou-minkata/Sources/Plasma/PubUtilLib/plMessage/plLOSRequestMsg.h

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*==LICENSE==*/
#ifndef plLOSRequestMsg_inc
#define plLOSRequestMsg_inc

#include "pnMessage/plMessage.h"
#include "plPhysical/plSimDefs.h"
#include "hsGeometry3.h"

class plLOSRequestMsg : public plMessage
{
public:
    enum TestType {
        kTestClosest,       // this test has to keep going after finding a hit until it's ruled out others
        kTestAny            // this is faster because it will stop as soon as it finds any hit
    };

    enum ReportType
    {
        kReportHit,
        kReportMiss,
        kReportHitOrMiss
    };

    plLOSRequestMsg();
    plLOSRequestMsg(const plKey& sender, hsPoint3& fromPoint, hsPoint3& toPoint, plSimDefs::plLOSDB db,
        TestType test = kTestAny, ReportType report = kReportHit);

    void SetFrom(const hsPoint3& from) { fFrom = from; }
    void SetTo(const hsPoint3& to) { fTo = to; }

    void SetWorldKey(plKey world) { fWorldKey = world; }

    /** Determines which database we're testing against.
        See plSimDefs::plLOSDB for a list of valid databases. */
    void SetRequestType(plSimDefs::plLOSDB type) { fRequestType = type; }
    plSimDefs::plLOSDB GetRequestType() const { return fRequestType; }

    /** Determine whether we'll return on the first hit we get (kTestAny)
        or keep looking until we're sure we've found the closest hit (kTestClosest)
        The latter is slower because it has to look at all possible hits. */
    void SetTestType(TestType type) { fTestType = type; }
    TestType GetTestType() const { return fTestType; }

    /** Do we report when we find a hit, when we don't find a hit, or both? */
    void SetReportType(ReportType type) { fReportType = type; }
    ReportType GetReportType() const { return fReportType; }

    /** An ID invented by the caller for their own bookkeeping. */
    void SetRequestID(UInt32 id) { fRequestID = id; }
    UInt32 GetRequestID() { return fRequestID; }

    /** If we get a hit on the first pass, we'll then double-check the remaining
        segment (start->first hit) against the "cull db". If *any* hit is found,
        the entire test fails. */
    void SetCullDB(plSimDefs::plLOSDB db) { fCullDB = db; }
    plSimDefs::plLOSDB GetCullDB() { return fCullDB; }

    CLASSNAME_REGISTER( plLOSRequestMsg );
    GETINTERFACE_ANY( plLOSRequestMsg, plMessage );

    // Local only, runtime, no IO necessary
    virtual void Read(hsStream* s, hsResMgr* mgr) {}
    virtual void Write(hsStream* s, hsResMgr* mgr) {}
    
private:
    friend class plLOSDispatch;
    hsPoint3                fFrom;
    hsPoint3                fTo;
    plKey                   fWorldKey;          // Force the query to happen in a particular subworld.
    plSimDefs::plLOSDB      fRequestType;       // which database are we probing?
    plSimDefs::plLOSDB      fCullDB;            // if we find a hit, see if anything in this DB blocks it.
    TestType                fTestType;          // testing closest hit or just any?
    ReportType              fReportType;        // reporting hits, misses, or both?
    UInt32                  fRequestID;
};

#endif // plLOSRequestMsg_inc