Metric VectorToPolarRadians (const CVector &vP, Metric *retrRadius)
// VectorToPolarRadians
//
// Converts from a vector to polar coordinates (see PolarToVector)
{
Metric rAngle;
Metric rRadius;
Metric rSqrRadius = vP.Dot(vP);
// If we are at the origin then the angle is undefined
if (rSqrRadius == 0.0)
{
rAngle = 0.0;
rRadius = 0.0;
}
else
{
rRadius = sqrt(rSqrRadius);
if (vP.GetX() >= 0.0)
rAngle = (vP.GetY() >= 0.0 ? asin(vP.GetY() / rRadius) : (2 * g_Pi) + asin(vP.GetY() / rRadius));
else
rAngle = g_Pi - asin(vP.GetY() / rRadius);
}
// Done
if (retrRadius)
*retrRadius = rRadius;
return rAngle;
}
int VectorToPolar (const CVector &vP, Metric *retrRadius)
// VectorToPolar
//
// Converts from a vector to polar coordinates (see PolarToVector)
{
int iAngle;
Metric rRadius;
Metric rSqrRadius = vP.Dot(vP);
// If we are at the origin then the angle is undefined
if (rSqrRadius == 0.0)
{
iAngle = 0;
rRadius = 0.0;
}
else
{
rRadius = sqrt(rSqrRadius);
if (vP.GetX() >= 0.0)
iAngle = (((int)(180 * asin(vP.GetY() / rRadius) / g_Pi)) + 360) % 360;
else
iAngle = 180 - ((int)(180 * asin(vP.GetY() / rRadius) / g_Pi));
}
// Done
if (retrRadius)
*retrRadius = rRadius;
return iAngle;
}
void CAutoDefenseClass::Update (CInstalledDevice *pDevice,
CSpaceObject *pSource,
int iTick,
bool *retbSourceDestroyed,
bool *retbConsumedItems)
// Update
//
// Update device
{
if (pDevice->IsReady() && pDevice->IsEnabled())
{
int i;
// Look for a target
CSpaceObject *pBestTarget = NULL;
Metric rBestDist2 = MAX_INTERCEPT_DISTANCE * MAX_INTERCEPT_DISTANCE;
for (i = 0; i < pSource->GetSystem()->GetObjectCount(); i++)
{
CSpaceObject *pObj = pSource->GetSystem()->GetObject(i);
if (pObj
&& pObj->GetCategory() == CSpaceObject::catMissile
&& pObj->GetSource() != pSource
&& (pObj->GetSource() == NULL || pSource->IsEnemy(pObj->GetSource())))
{
CVector vRange = pObj->GetPos() - pSource->GetPos();
Metric rDistance2 = vRange.Dot(vRange);
if (rDistance2 < rBestDist2)
{
pBestTarget = pObj;
rBestDist2 = rDistance2;
}
}
}
// If we found a target, try to shoot at it
if (pBestTarget)
{
CDeviceClass *pWeapon = GetWeapon();
if (pWeapon)
{
int iFireAngle;
if (pWeapon->IsWeaponAligned(pSource, pDevice, pBestTarget, &iFireAngle))
{
pDevice->SetFireAngle(iFireAngle);
pWeapon->Activate(pDevice, pSource, pBestTarget, iFireAngle, retbSourceDestroyed, retbConsumedItems);
pDevice->SetActivationDelay(m_iRechargeTicks);
}
}
}
}
}
void CZoanthropeAI::ImplementCombatManeuvers (CSpaceObject *pTarget)
// ImplementCombatManeuvers
//
// Move and fire
{
CVector vTarget = pTarget->GetPos() - m_pShip->GetPos();
Metric rTargetDist2 = vTarget.Dot(vTarget);
// Fire on the target as best we can (if iFireDir is not -1, then it
// is the angle that we should turn towards to be able to fire).
int iFireDir;
m_AICtx.ImplementFireWeaponOnTarget(m_pShip, -1, -1, pTarget, vTarget, rTargetDist2, &iFireDir);
// Compute our flocking position
CVector vFlockPos;
CVector vFlockVel;
int iFlockFacing;
if (rTargetDist2 > COMBAT_RANGE2
&& m_AICtx.CalcFlockingFormation(m_pShip, NULL, MAX_FLOCK_DIST, SEPARATION_RANGE, &vFlockPos, &vFlockVel, &iFlockFacing))
{
m_AICtx.ImplementFormationManeuver(m_pShip, vFlockPos, vFlockVel, m_pShip->AlignToRotationAngle(iFlockFacing));
}
// Otherwise, if we are the leader, then fight
else
{
// If we're not well in range of our primary weapon then
// get closer to the target. (Or if we are not moving)
if (rTargetDist2 > m_AICtx.GetPrimaryAimRange2())
{
// Try to flank our target, if we are faster
bool bFlank = (m_pShip->GetMaxSpeed() > pTarget->GetMaxSpeed());
m_AICtx.ImplementCloseOnTarget(m_pShip, pTarget, vTarget, rTargetDist2, bFlank);
iFireDir = -1;
}
else if (pTarget->CanMove()
&& (m_pShip->GetVel().Length2() < (0.01 * 0.01 * LIGHT_SPEED * LIGHT_SPEED)))
{
m_AICtx.ImplementSpiralOut(m_pShip, vTarget);
iFireDir = -1;
}
// If necessary, turn to aim our weapon based on the fire solution
if (iFireDir != -1
&& !m_AICtx.NoDogfights())
m_AICtx.ImplementManeuver(m_pShip, iFireDir, false);
}
}
CSpaceObject *CFerianShipAI::FindRandomAsteroid (void)
// FindRandomAsteroid
//
// Returns a random asteroid within 60 light-seconds
{
int i;
Metric rMaxDist2 = MAX_MINING_RANGE2;
Metric rCloseDist2 = CLOSE_MINING_RANGE2;
CSpaceObject *Table[MAX_RANDOM_COUNT];
int iCount = 0;
for (i = 0;
(i < m_pShip->GetSystem()->GetObjectCount() && iCount < MAX_RANDOM_COUNT);
i++)
{
CSpaceObject *pObj = m_pShip->GetSystem()->GetObject(i);
if (pObj && pObj->HasAttribute(ATTRIBUTE_ASTEROID))
{
CVector vRange = pObj->GetPos() - m_pShip->GetPos();
Metric rDistance2 = vRange.Dot(vRange);
// If we're within the max dist, add it to the list
if (rDistance2 < rMaxDist2)
Table[iCount++] = pObj;
// If we're within 10 light-seconds, add it twice more (to increase
// the probability)
if (rDistance2 < rCloseDist2)
{
Table[iCount++] = pObj;
Table[iCount++] = pObj;
}
}
}
// Pick a random entry from the list
if (iCount == 0)
return NULL;
else
return Table[mathRandom(0, iCount-1)];
}
BOOL CRVTrackerDrawPoly::OnStart()
{
// Make sure they're in the right edit mode for this..
if ((m_pView->GetEditMode() != BRUSH_EDITMODE) && (m_pView->GetEditMode() != GEOMETRY_EDITMODE))
return FALSE;
//make sure that they weren't waiting for a polygon to finish, this fixes
//a weird issue where a new tracker would get started after one just finished,
//causing another brush drawing to begin right after the old one finished
if(m_bFinishDrawingPoly)
{
return FALSE;
}
CEditVert vert;
if( m_pView->GetVertexFromPoint(m_cCurPt, vert) )
{
if( !m_pView->IsPerspectiveViewType( ))
{
CVector vOffset;
vOffset = m_pView->EditGrid( ).Forward( );
vOffset = m_pView->EditGrid( ).Forward( ) * vOffset.Dot( m_pView->GetRegion( )->m_vMarker );
vert += vOffset;
}
m_pView->m_EditState = EDIT_DRAWINGPOLY;
}
else
// Not sure how this would happen, but if we can't create the first vertex, cancel the tracker
return FALSE;
// Setup the new brush.
m_pView->DrawingBrush().m_Points.Append( vert );
m_pView->DrawingBrush().m_Points.Append( vert );
// Update the view
m_pView->GetDocument()->UpdateAllViews(m_pView);
m_pView->DrawRect();
return TRUE;
}
/* norm */
float Len2() {
return fScalar*fScalar + cV.Dot( cV );
}
void CZoanthropeAI::Behavior (void)
// Behavior
{
// Reset
ResetBehavior();
// Behave according to our state
switch (m_State)
{
case stateNone:
BehaviorStart();
break;
case stateAttackingOnPatrol:
{
ASSERT(m_pTarget);
ImplementCombatManeuvers(m_pTarget);
m_AICtx.ImplementFireOnTargetsOfOpportunity(m_pShip, m_pTarget);
// See if we're out of our zone
Metric rRange = LIGHT_SECOND * GetCurrentOrderData();
if (CheckOutOfZone(GetCurrentOrderTarget(),
rRange - PATROL_SENSOR_RANGE,
rRange + PATROL_SENSOR_RANGE,
30))
SetState(stateNone);
break;
}
case stateAttackingThreat:
{
ASSERT(m_pTarget);
ImplementCombatManeuvers(m_pTarget);
m_AICtx.ImplementFireOnTargetsOfOpportunity(m_pShip, m_pTarget);
// Every once in a while check to see if we've wandered too far from
// our base.
if (CheckOutOfRange(GetCurrentOrderTarget(), PATROL_SENSOR_RANGE, 20))
SetState(stateNone);
break;
}
case stateOnCourseForStargate:
{
m_AICtx.ImplementGating(m_pShip, m_pBase);
m_AICtx.ImplementAttackNearestTarget(m_pShip, ATTACK_RANGE, &m_pTarget);
m_AICtx.ImplementFireOnTargetsOfOpportunity(m_pShip);
break;
}
case stateOnEscortCourse:
{
ASSERT(m_pBase);
CVector vFlockPos;
CVector vFlockVel;
int iFlockFacing;
if (m_AICtx.CalcFlockingFormation(m_pShip, m_pBase, MAX_FLOCK_DIST, SEPARATION_RANGE, &vFlockPos, &vFlockVel, &iFlockFacing))
{
m_AICtx.ImplementFormationManeuver(m_pShip, vFlockPos, vFlockVel, m_pShip->AlignToRotationAngle(iFlockFacing));
}
else
{
CVector vTarget = m_pBase->GetPos() - m_pShip->GetPos();
Metric rTargetDist2 = vTarget.Dot(vTarget);
m_AICtx.ImplementCloseOnTarget(m_pShip, m_pBase, vTarget, rTargetDist2);
m_AICtx.ImplementAttackNearestTarget(m_pShip, m_AICtx.GetMaxWeaponRange(), &m_pTarget);
m_AICtx.ImplementFireOnTargetsOfOpportunity(m_pShip);
}
// See if there is anything to attack
CSpaceObject *pTarget;
if (CheckForEnemiesInRange(m_pShip, PATROL_SENSOR_RANGE, 30, &pTarget))
SetState(stateAttackingThreat, m_pBase, pTarget);
break;
}
case stateOnPatrolOrbit:
{
ASSERT(m_pBase);
CVector vFlockPos;
CVector vFlockVel;
int iFlockFacing;
if (m_AICtx.CalcFlockingFormation(m_pShip, NULL, MAX_FLOCK_DIST, SEPARATION_RANGE, &vFlockPos, &vFlockVel, &iFlockFacing))
{
m_AICtx.ImplementFormationManeuver(m_pShip, vFlockPos, vFlockVel, m_pShip->AlignToRotationAngle(iFlockFacing));
}
else
{
m_AICtx.ImplementOrbit(m_pShip, m_pBase, LIGHT_SECOND * GetCurrentOrderData());
m_AICtx.ImplementAttackNearestTarget(m_pShip, m_AICtx.GetMaxWeaponRange(), &m_pTarget);
m_AICtx.ImplementFireOnTargetsOfOpportunity(m_pShip);
}
// See if there is anything to attack
CSpaceObject *pTarget;
if (CheckForEnemiesInRange(m_pShip, PATROL_SENSOR_RANGE, 30, &pTarget))
SetState(stateAttackingOnPatrol, m_pBase, pTarget);
break;
}
case stateReturningFromThreat:
{
ASSERT(m_pBase);
m_AICtx.ImplementDocking(m_pShip, m_pBase);
m_AICtx.ImplementAttackNearestTarget(m_pShip, m_AICtx.GetMaxWeaponRange(), &m_pTarget);
m_AICtx.ImplementFireOnTargetsOfOpportunity(m_pShip);
// See if there is anything to attack
CSpaceObject *pTarget;
if (CheckForEnemiesInRange(m_pBase, PATROL_SENSOR_RANGE, 30, &pTarget))
SetState(stateAttackingThreat, m_pBase, pTarget);
break;
}
case stateWaiting:
m_AICtx.ImplementStop(m_pShip);
if (m_pTarget)
m_AICtx.ImplementAttackTarget(m_pShip, m_pTarget, true);
m_AICtx.ImplementAttackNearestTarget(m_pShip, m_AICtx.GetMaxWeaponRange(), &m_pTarget);
m_AICtx.ImplementFireOnTargetsOfOpportunity(m_pShip);
break;
case stateWaitingForThreat:
{
ASSERT(m_pBase);
CSpaceObject *pTarget;
if (CheckForEnemiesInRange(m_pBase, PATROL_SENSOR_RANGE, 30, &pTarget))
SetState(stateAttackingThreat, m_pBase, pTarget);
break;
}
}
}
BOOL CRVTrackerDrawPoly::OnRotate()
{
// Get the brush
CEditBrush *pBrush = &m_pView->DrawingBrush();
// Make sure we've got at least three points specified
if (pBrush->m_Points.GetSize() < 3)
return FALSE;
// The origin's point #1
CVector vOrigin = pBrush->m_Points[0];
// The original rotation direction's point #2
CVector vBase = pBrush->m_Points[1];
// The new rotation's point #3
CVector vNew = pBrush->m_Points[2];
// Get the base direction
CVector vBaseDir = vBase - vOrigin;
float fBaseMag = vBaseDir.Mag();
// Don't allow duplicate points
if (fBaseMag < 0.01f)
return TRUE;
vBaseDir *= 1.0f / fBaseMag;
// Get the rotation direction
CVector vNewDir = vNew - vOrigin;
float fNewMag = vNewDir.Mag();
// Don't allow duplicate points
if (fNewMag < 0.01f)
return TRUE;
vNewDir *= 1.0f / fNewMag;
// Get the rotation axis
CVector vRotAxis = vNewDir.Cross(vBaseDir);
// Get the sin of the angle from the cross product
float fRotAngle = vRotAxis.Mag();
// Don't bother if the angle's 0...
if (fRotAngle == 0.0f)
return TRUE;
// Normalize the axis
vRotAxis *= 1.0f / fRotAngle;
// Get the actual angle
fRotAngle = (float)asin(fRotAngle);
// Handle obtuse angles..
if (vBaseDir.Dot(vNewDir) < 0.0f)
fRotAngle = MATH_PI - fRotAngle;
LTMatrix mRotation;
// Get the rotation matrix
mRotation.SetupRot(vRotAxis, fRotAngle);
// Set up an undo..
CEditRegion *pRegion = m_pView->GetRegion();
PreActionList actionList;
for (uint32 nUndoLoop = 0; nUndoLoop < pRegion->m_Selections; ++nUndoLoop)
actionList.AddTail(new CPreAction(ACTION_MODIFYNODE, pRegion->m_Selections[nUndoLoop]));
m_pView->GetRegionDoc()->Modify(&actionList, TRUE);
// If we're in geometry mode..
if (m_pView->GetEditMode() == GEOMETRY_EDITMODE)
{
// Get the selected vertices
CVertRefArray vertList;
m_pView->GetSelectedVerts(vertList);
// Rotate 'em
for (uint32 nVertLoop = 0; nVertLoop < vertList.GetSize(); ++nVertLoop)
{
CVertRef vert = vertList[nVertLoop];
if (!vert.IsValid())
continue;
vert() -= vOrigin;
mRotation.Apply(vert());
vert() += vOrigin;
}
}
else
{
// Otherwise, rotate all the selected nodes
for (uint32 nNodeLoop = 0; nNodeLoop < pRegion->m_Selections.GetSize( ); ++nNodeLoop)
{
pRegion->m_Selections[nNodeLoop]->Rotate(mRotation, vOrigin);
}
// Update the selection box since stuff rotated...
m_pView->GetRegionDoc()->UpdateSelectionBox();
}
return TRUE;
}
void CAutonAI::Behavior (void)
// Behavior
//
// Fly, fight, die
{
// Reset
ResetBehavior();
// Behave according to our state
switch (m_State)
{
case stateNone:
BehaviorStart();
break;
case stateAttackingTarget:
ASSERT(m_pTarget);
m_AICtx.ImplementAttackTarget(m_pShip, m_pTarget);
m_AICtx.ImplementFireOnTargetsOfOpportunity(m_pShip, m_pTarget);
break;
case stateEscorting:
m_AICtx.ImplementEscort(m_pShip, m_pDest, &m_pTarget);
break;
case stateFollowing:
{
ASSERT(m_pDest);
CVector vTarget = m_pDest->GetPos() - m_pShip->GetPos();
Metric rTargetDist2 = vTarget.Dot(vTarget);
Metric rMaxDist = (MAX_FOLLOW_DISTANCE) + (g_KlicksPerPixel * (m_pShip->GetDestiny() % 120));
if (rTargetDist2 > (rMaxDist * rMaxDist))
m_AICtx.ImplementCloseOnTarget(m_pShip, m_pDest, vTarget, rTargetDist2);
else if (rTargetDist2 < (g_KlicksPerPixel * g_KlicksPerPixel * 1024.0))
m_AICtx.ImplementSpiralOut(m_pShip, vTarget);
else
m_AICtx.ImplementStop(m_pShip);
if (m_pTarget)
m_AICtx.ImplementAttackTarget(m_pShip, m_pTarget, true);
m_AICtx.ImplementAttackNearestTarget(m_pShip, ATTACK_RANGE, &m_pTarget);
m_AICtx.ImplementFireOnTargetsOfOpportunity(m_pShip);
break;
}
case stateOnCourseForStargate:
m_AICtx.ImplementGating(m_pShip, m_pDest);
m_AICtx.ImplementAttackNearestTarget(m_pShip, ATTACK_RANGE, &m_pTarget);
m_AICtx.ImplementFireOnTargetsOfOpportunity(m_pShip);
break;
case stateWaiting:
m_AICtx.ImplementHold(m_pShip);
if (m_pTarget)
m_AICtx.ImplementAttackTarget(m_pShip, m_pTarget, true);
m_AICtx.ImplementAttackNearestTarget(m_pShip, ATTACK_RANGE, &m_pTarget);
m_AICtx.ImplementFireOnTargetsOfOpportunity(m_pShip);
break;
default:
ASSERT(false);
}
}
// Wrap the textures, starting at a poly index
void CRVTrackerTextureWrap::WrapTexture(CTWPolyInfo *pPoly, const CVector &vWrapDir, CTextExtents &cExtents) const
{
// Mark this poly as wrapped
pPoly->m_bTouched = TRUE;
CTexturedPlane& Texture = pPoly->m_pPoly->GetTexture(GetCurrTexture());
// Get the texture space
LTVector vWrapO = Texture.GetO();
LTVector vWrapP = Texture.GetP();
LTVector vWrapQ = Texture.GetQ();
// Get the texture offset projections
float fWrapOdotP = vWrapO.Dot(vWrapP);
float fWrapOdotQ = vWrapO.Dot(vWrapQ);
// Update the texturing extents
for (uint32 nExtentLoop = 0; nExtentLoop < pPoly->m_aEdges.GetSize(); ++nExtentLoop)
{
LTVector vEdgePt = pPoly->m_aEdges[nExtentLoop]->m_aPt[0];
float fCurU = vWrapP.Dot(vEdgePt) - fWrapOdotP;
float fCurV = vWrapQ.Dot(vEdgePt) - fWrapOdotQ;
cExtents.m_fMinU = LTMIN(fCurU, cExtents.m_fMinU);
cExtents.m_fMaxU = LTMAX(fCurU, cExtents.m_fMaxU);
cExtents.m_fMinV = LTMIN(fCurV, cExtents.m_fMinV);
cExtents.m_fMaxV = LTMAX(fCurV, cExtents.m_fMaxV);
}
CMoArray<uint32> aNeighbors;
CMoArray<float> aDots;
// Insert the neighbors into a list in dot-product order
for (uint32 nNeighborLoop = 0; nNeighborLoop < pPoly->m_aNeighbors.GetSize(); ++nNeighborLoop)
{
CTWPolyInfo *pNeighbor = pPoly->m_aNeighbors[nNeighborLoop];
// Skip edges that don't have a neighbor
if (!pNeighbor)
continue;
// Skip neighbors that are already wrapped
if (pNeighbor->m_bTouched)
continue;
// Get our dot product
float fCurDot = vWrapDir.Dot(pPoly->m_aEdges[nNeighborLoop]->m_Plane.m_Normal);
if ((m_bRestrictWalkDir) && (fCurDot < 0.707f))
continue;
// Mark this neighbor as touched (to avoid later polygons pushing it onto the stack)
pNeighbor->m_bTouched = TRUE;
// Insert it into the list
for (uint32 nInsertLoop = 0; nInsertLoop < aNeighbors.GetSize(); ++nInsertLoop)
{
if (fCurDot > aDots[nInsertLoop])
break;
}
aDots.Insert(nInsertLoop, fCurDot);
aNeighbors.Insert(nInsertLoop, nNeighborLoop);
}
// Recurse through its neighbors
for (uint32 nWrapLoop = 0; nWrapLoop < aNeighbors.GetSize(); ++nWrapLoop)
{
CTWPolyInfo *pNeighbor = pPoly->m_aNeighbors[aNeighbors[nWrapLoop]];
CTWEdgeInfo *pEdge = pPoly->m_aEdges[aNeighbors[nWrapLoop]];
//////////////////////////////////////////////////////////////////////////////
// Wrap this neighbor
// Create a matrix representing the basis of the polygon in relation to this edge
LTMatrix mPolyBasis;
mPolyBasis.SetTranslation(0.0f, 0.0f, 0.0f);
mPolyBasis.SetBasisVectors(&pEdge->m_vDir, &pPoly->m_pPoly->m_Plane.m_Normal, &pEdge->m_Plane.m_Normal);
// Create a new basis for the neighbor polygon
LTMatrix mNeighborBasis;
LTVector vNeighborForward;
vNeighborForward = pNeighbor->m_pPoly->m_Plane.m_Normal.Cross(pEdge->m_vDir);
// Just to be sure..
vNeighborForward.Norm();
mNeighborBasis.SetTranslation(0.0f, 0.0f, 0.0f);
mNeighborBasis.SetBasisVectors(&pEdge->m_vDir, &pNeighbor->m_pPoly->m_Plane.m_Normal, &vNeighborForward);
// Create a rotation matrix from here to there
LTMatrix mRotation;
mRotation = mNeighborBasis * ~mPolyBasis;
// Rotate the various vectors
LTVector vNewP;
LTVector vNewQ;
LTVector vNewDir;
mRotation.Apply3x3(vWrapP, vNewP);
mRotation.Apply3x3(vWrapQ, vNewQ);
mRotation.Apply3x3(vWrapDir, vNewDir);
// Rotate the texture basis if we're following a path
if (m_nWrapStyle == k_WrapPath)
{
LTVector vNeighborEdgeDir;
if (GetSimilarEdgeDir(pNeighbor, vNewDir, vNeighborEdgeDir, 0.707f))
{
LTMatrix mRotatedNeighbor;
LTVector vNeighborRight;
vNeighborRight = vNeighborEdgeDir.Cross(pNeighbor->m_pPoly->m_Plane.m_Normal);
vNeighborRight.Norm();
// Make sure we're pointing the right way...
if (vNeighborRight.Dot(pEdge->m_vDir) < 0.0f)
vNeighborRight = -vNeighborRight;
mRotatedNeighbor.SetTranslation(0.0f, 0.0f, 0.0f);
mRotatedNeighbor.SetBasisVectors(&vNeighborRight, &pNeighbor->m_pPoly->m_Plane.m_Normal, &vNeighborEdgeDir);
// Build a basis based on an edge from the current polygon
LTVector vBestPolyEdge;
GetSimilarEdgeDir(pPoly, vWrapDir, vBestPolyEdge);
LTVector vPolyRight = vBestPolyEdge.Cross(pNeighbor->m_pPoly->m_Plane.m_Normal);
vPolyRight.Norm();
// Make sure we're pointing the right way...
if (vPolyRight.Dot(pEdge->m_vDir) < 0.0f)
vPolyRight = -vPolyRight;
// Build the poly edge matrix
LTMatrix mPolyEdgeBasis;
mPolyEdgeBasis.SetTranslation(0.0f, 0.0f, 0.0f);
mPolyEdgeBasis.SetBasisVectors(&vPolyRight, &pNeighbor->m_pPoly->m_Plane.m_Normal, &vBestPolyEdge);
// Get a matrix from here to there
LTMatrix mRotator;
mRotator = mRotatedNeighbor * ~mPolyEdgeBasis;
// Rotate the texture basis
mRotator.Apply3x3(vNewP);
mRotator.Apply3x3(vNewQ);
// And use the new edge as the new direction
vNewDir = vNeighborEdgeDir;
}
// Remove skew from vNewP/vNewQ
if ((float)fabs(vNewP.Dot(vNewQ)) > 0.001f)
{
float fMagP = vNewP.Mag();
float fMagQ = vNewQ.Mag();
vNewQ *= 1.0f / fMagQ;
vNewP -= vNewQ * vNewQ.Dot(vNewP);
vNewP.Norm(fMagP);
vNewQ *= fMagQ;
}
}
// Get the first edge point..
CVector vEdgePt = pEdge->m_aPt[0];
// Calculate the texture coordinate at this point
float fWrapU = vWrapP.Dot(vEdgePt) - fWrapOdotP;
float fWrapV = vWrapQ.Dot(vEdgePt) - fWrapOdotQ;
// Build the new offset
float fNewOdotP = vNewP.Dot(vEdgePt) - fWrapU;
float fNewOdotQ = vNewQ.Dot(vEdgePt) - fWrapV;
LTVector vNewO;
vNewO.Init();
float fNewPMag = vNewP.MagSqr();
if (fNewPMag > 0.0f)
vNewO += vNewP * (fNewOdotP / fNewPMag);
float fNewQMag = vNewQ.MagSqr();
if (fNewQMag > 0.0f)
vNewO += vNewQ * (fNewOdotQ / fNewQMag);
pNeighbor->m_pPoly->SetTextureSpace(GetCurrTexture(), vNewO, vNewP, vNewQ);
// Recurse into this neighbor
WrapTexture(pNeighbor, vNewDir, cExtents);
}
}
BOOL CRVTrackerTextureWrap::OnEnd()
{
// If we're getting OnEnd because the dialog got displayed, skip out
if (m_bShowingDialog)
return TRUE;
// Show the options dialog
m_bShowingDialog = TRUE;
CAutoTextureOptionsDlg cDlg;
// Load the options from the registry
cDlg.LoadOptionsFromReg();
//if the skip tracker is active, just avoid the dialog
int nModalResult;
if(m_pSkipTracker && m_pSkipTracker->GetActive())
nModalResult = IDOK;
else
nModalResult = cDlg.DoModal();
m_bShowingDialog = FALSE;
// Get the wrapping direction
CVector vWrapDir = m_pView->DrawingBrush().m_Points[1] - m_pView->DrawingBrush().m_Points[0];
// Clear the drawing brush (so it doesn't hang around if they cancel)
m_pView->DrawingBrush().Term();
// Jump out if they cancelled
if (nModalResult != IDOK)
return TRUE;
// Get the style..
m_nWrapStyle = cDlg.m_nStyle;
if (m_nWrapStyle >= k_WrapInvalid)
return TRUE;
// Save the options to the registry
cDlg.SaveOptionsToReg();
// Get the options
m_bScaleToFit = cDlg.m_bScale;
m_bAdjustOffset = cDlg.m_bOffset;
m_bRestrictWalkDir = cDlg.m_bRestrictDir;
// This might take a while...
m_pView->BeginWaitCursor();
// Select the brushes with selected faces in geometry mode so this can be undone
if (m_pView->GetEditMode() == GEOMETRY_EDITMODE)
{
CPolyRefArray &rTaggedPolies = m_pView->TaggedPolies();
for (uint32 nFindBaseLoop = 0; nFindBaseLoop < rTaggedPolies.GetSize(); ++nFindBaseLoop)
{
if (!rTaggedPolies[nFindBaseLoop].IsValid())
continue;
m_pView->GetRegion()->SelectNode(rTaggedPolies[nFindBaseLoop]()->m_pBrush->AsNode());
}
m_pView->GetRegionDoc()->NotifySelectionChange();
}
// They'll probably want to be able to undo this...
m_pView->GetRegionDoc()->SetupUndoForSelections();
// If we didn't move, try and figure out a wrap direction
if (vWrapDir.MagSqr() <= 0.01f)
{
// Try going to the right
vWrapDir = m_pView->Nav().Right();
// Make sure we're actually still on the poly...
CEditPlane *pPlane = &(m_rBasePoly()->m_Plane);
vWrapDir -= pPlane->m_Normal * vWrapDir.Dot(pPlane->m_Normal);
// If that doesn't work..
if (vWrapDir.MagSqr() <= 0.01f)
{
// Try going forward
vWrapDir = m_pView->Nav().Forward();
vWrapDir -= pPlane->m_Normal * vWrapDir.Dot(pPlane->m_Normal);
}
}
vWrapDir.Norm();
// Build the polygon set
CTWPolyList aPolyList;
BuildPolyList(aPolyList);
// Find our base poly
uint32 nBasePolyIndex = FindPolyIndex(aPolyList, m_rBasePoly());
// Wrap the textures, starting at the base poly index
CTextExtents cExtents;
WrapTexture(aPolyList[nBasePolyIndex], vWrapDir, cExtents);
// Scale the textures to an even multiple
if (m_bScaleToFit)
ScaleToMultiple(aPolyList, cExtents);
// Offset the textures to fit at the top/left
if (m_bAdjustOffset)
AlignToTopLeft(aPolyList, cExtents);
// Clear the polygon set
ClearPolyList(aPolyList);
// Redraw the views
POSITION pos = m_pView->GetDocument()->GetFirstViewPosition();
while (pos)
{
CView *pView = m_pView->GetDocument()->GetNextView(pos);
pView->Invalidate(FALSE);
}
// This might take a while...
m_pView->EndWaitCursor();
return TRUE;
}
void CFleetShipAI::Behavior (void)
// Behavior
{
// Reset
ResetBehavior();
// Use basic items
UseItemsBehavior();
// Behave according to our state
switch (m_State)
{
case stateNone:
BehaviorStart();
break;
case stateAttackAtWill:
{
// If we don't have a target, find one
if (m_pTarget == NULL && m_pShip->IsDestinyTime(13))
m_pTarget = m_pShip->GetNearestEnemy(ATTACK_AT_WILL_RANGE, true);
// If we have a target, attack
if (m_pTarget)
{
ImplementAttackTarget(m_pTarget);
ImplementFireOnTargetsOfOpportunity(m_pTarget);
}
// Otherwise, stay in formation
else
{
ImplementKeepFormation();
ImplementFireOnTargetsOfOpportunity();
ImplementFireOnNearestTarget();
}
break;
}
case stateAttackInFormation:
{
bool bInFormation;
ImplementKeepFormation(&bInFormation);
// Fire the primary weapon (most of the time)
if (bInFormation && mathRandom(1, 3) > 1)
ImplementFireWeapon();
// Decrement counter
if (m_iCounter > 0)
{
if (--m_iCounter == 0)
{
SetState(stateKeepFormation);
m_iCounter = 0;
}
}
break;
}
case stateAttackOnPatrol:
ASSERT(m_pTarget);
ImplementAttackTarget(m_pTarget);
ImplementFireOnTargetsOfOpportunity(m_pTarget);
// Check to see if we've wandered outside our patrol zone
if (m_pShip->IsDestinyTime(20))
{
CSpaceObject *pCenter = GetCurrentOrderTarget();
Metric rMaxRange2 = PATROL_ORBIT_DIST + PATROL_SENSOR_RANGE;
rMaxRange2 = rMaxRange2 * rMaxRange2;
Metric rMinRange2 = std::max(0.0, PATROL_ORBIT_DIST - PATROL_SENSOR_RANGE);
rMinRange2 = rMinRange2 * rMinRange2;
int iTick = m_pShip->GetSystem()->GetTick();
CVector vRange = pCenter->GetPos() - m_pShip->GetPos();
Metric rDistance2 = vRange.Dot(vRange);
// If we're outside of our patrol range then stop the attack
if (rDistance2 > rMaxRange2 || rDistance2 < rMinRange2)
SetState(stateNone);
}
break;
case stateAttackTarget:
{
ASSERT(m_pTarget);
if (m_pTarget->CanMove())
ImplementAttackTarget(m_pTarget);
else
{
// Attack the target as best we can
CVector vTarget = m_pTarget->GetPos() - m_pShip->GetPos();
Metric rTargetDist2 = vTarget.Dot(vTarget);
ImplementFireWeaponOnTarget(-1, -1, m_pTarget, vTarget, rTargetDist2);
// Maneuver to a proper position near the target
Metric rRange;
int iCounterAdj;
if (m_pAISettings->iCombatStyle == aicombatStandOff)
{
rRange = m_rBestWeaponRange / 2.0;
iCounterAdj = 2;
}
else
{
rRange = m_rBestWeaponRange / 6.0;
iCounterAdj = 1;
}
if (m_iCounter == 0)
{
m_vVector = ComputeAttackPos(m_pTarget, rRange, &m_iAngle);
m_iCounter = mathRandom(130, 160) * iCounterAdj;
}
else
m_iCounter--;
ImplementFormationManeuver(m_vVector, NullVector, m_iAngle);
}
ImplementFireOnTargetsOfOpportunity(m_pTarget);
break;
}
case stateKeepFormation:
ImplementKeepFormation();
ImplementFireOnTargetsOfOpportunity();
ImplementFireOnNearestTarget();
break;
case stateOnCourseForDocking:
ASSERT(m_pDest);
ImplementDocking(m_pDest);
ImplementFireOnTargetsOfOpportunity();
ImplementFireOnNearestTarget();
break;
case stateOnCourseForStargate:
ASSERT(m_pDest);
ImplementGating(m_pDest);
ImplementFireOnTargetsOfOpportunity();
ImplementFireOnNearestTarget();
break;
case stateOnPatrolOrbit:
ASSERT(m_pDest);
ImplementOrbit(m_pDest, PATROL_ORBIT_DIST);
ImplementAttackNearestTarget(m_rMaxWeaponRange, &m_pTarget, m_pDest);
ImplementFireOnTargetsOfOpportunity(NULL, m_pDest);
// Check to see if any enemy ships appear
if (m_pShip->IsDestinyTime(30))
{
CSpaceObject *pPrincipal = GetCurrentOrderTarget();
CSpaceObject *pTarget = CalcEnemyShipInRange(pPrincipal, PATROL_SENSOR_RANGE, m_pDest);
if (pTarget)
{
SetState(stateAttackOnPatrol);
m_pTarget = pTarget;
ASSERT(m_pTarget->DebugIsValid() && m_pTarget->NotifyOthersWhenDestroyed());
}
}
break;
}
}
Metric CalcDistanceToPath (const CVector &Pos,
const CVector &Path1,
const CVector &Path2,
CVector *retvNearestPoint,
CVector *retvAway)
// CalcDistanceToPath
//
// Returns the distance from Pos to the path from Path1 to Path2.
{
// Create a unit vector from Path1 to Path2
CVector vPath;
vPath = Path2 - Path1;
vPath = vPath.Normal();
// Create a vector perpendicular to the path
CVector vPerp = vPath.Perpendicular();
// Create a vector from the point to one of the endpoints
CVector vPoint = Path1 - Pos;
// Project this vector on to the perpendicular
CVector vToLine = vPoint.Dot(vPerp) * vPerp;
// Compute the point on the line that is nearest Pos
CVector vIntersect = Pos + vToLine;
// See if the point is between the two path endpoints
bool bBetween = false;
if (Path1.GetX() < Path2.GetX())
bBetween = vIntersect.GetX() > Path1.GetX() && vIntersect.GetX() < Path2.GetX();
else
bBetween = vIntersect.GetX() > Path2.GetX() && vIntersect.GetX() < Path1.GetX();
if (bBetween)
{
if (Path1.GetY() < Path2.GetY())
bBetween = vIntersect.GetY() > Path1.GetY() && vIntersect.GetY() < Path2.GetY();
else
bBetween = vIntersect.GetY() > Path2.GetY() && vIntersect.GetY() < Path1.GetY();
}
// If we're between, then the nearest distance is the distance to the path
if (bBetween)
{
if (retvNearestPoint)
*retvNearestPoint = vIntersect;
if (retvAway)
*retvAway = vToLine.Normal();
return vToLine.Length();
}
// Otherwise, the nearest distance is the nearest distance to the two endpoints
else
{
CVector vDist1 = Path1 - Pos;
CVector vDist2 = Path2 - Pos;
Metric rLen1 = vDist1.Length();
Metric rLen2 = vDist2.Length();
if (rLen1 < rLen2)
{
if (retvNearestPoint)
*retvNearestPoint = Path1;
if (retvAway)
*retvAway = vDist1.Normal();
return rLen1;
}
else
{
if (retvNearestPoint)
*retvNearestPoint = Path2;
if (retvAway)
*retvAway = vDist2.Normal();
return rLen2;
}
}
}
