diff options
Diffstat (limited to 'src/control')
| -rw-r--r-- | src/control/PathFind.cpp | 203 | ||||
| -rw-r--r-- | src/control/PathFind.h | 33 |
2 files changed, 229 insertions, 7 deletions
diff --git a/src/control/PathFind.cpp b/src/control/PathFind.cpp index 61cd3d4e..9f45c454 100644 --- a/src/control/PathFind.cpp +++ b/src/control/PathFind.cpp @@ -14,9 +14,8 @@ bool gbShowCarPathsLinks; CPathFind &ThePaths = *(CPathFind*)0x8F6754; -WRAPPER bool CPedPath::CalcPedRoute(uint8, CVector, CVector, CVector*, int16*, int16) { EAXJMP(0x42E680); } - #define MAX_DIST INT16_MAX-1 +#define MIN_PED_ROUTE_DISTANCE 23.8f // object flags: // 1 UseInRoadBlock @@ -28,6 +27,199 @@ CPathInfoForObject *&InfoForTilePeds = *(CPathInfoForObject**)0x8F1AE4; CTempDetachedNode *&DetachedNodesCars = *(CTempDetachedNode**)0x8E2824; CTempDetachedNode *&DetachedNodesPeds = *(CTempDetachedNode**)0x8E28A0; +bool +CPedPath::CalcPedRoute(int8 pathType, CVector position, CVector destination, CVector *pointPoses, int16 *pointsFound, int16 maxPoints) +{ + *pointsFound = 0; + CVector vecDistance = destination - position; + if (Abs(vecDistance.x) > MIN_PED_ROUTE_DISTANCE || Abs(vecDistance.y) > MIN_PED_ROUTE_DISTANCE || Abs(vecDistance.z) > MIN_PED_ROUTE_DISTANCE) + return false; + CVector vecPos = (position + destination) * 0.5f; + CVector vecSectorStartPos (vecPos.x - 14.0f, vecPos.y - 14.0f, vecPos.z); + CVector2D vecSectorEndPos (vecPos.x + 28.0f, vecPos.x + 28.0f); + const int16 nodeStartX = (position.x - vecSectorStartPos.x) / 0.7f; + const int16 nodeStartY = (position.y - vecSectorStartPos.y) / 0.7f; + const int16 nodeEndX = (destination.x - vecSectorStartPos.x) / 0.7f; + const int16 nodeEndY = (destination.y - vecSectorStartPos.y) / 0.7f; + if (nodeStartX == nodeEndX && nodeStartY == nodeEndY) + return false; + CPedPathNode pathNodes[40][40]; + CPedPathNode pathNodesList[416]; + for (int32 x = 0; x < 40; x++) { + for (int32 y = 0; y < 40; y++) { + pathNodes[x][y].bBlockade = false; + pathNodes[x][y].id = INT16_MAX; + pathNodes[x][y].nodeIdX = x; + pathNodes[x][y].nodeIdY = y; + } + } + CWorld::AdvanceCurrentScanCode(); + if (pathType != ROUTE_NO_BLOCKADE) { + const int32 nStartX = max(CWorld::GetSectorIndexX(vecSectorStartPos.x), 0); + const int32 nStartY = max(CWorld::GetSectorIndexY(vecSectorStartPos.y), 0); + const int32 nEndX = min(CWorld::GetSectorIndexX(vecSectorEndPos.x), NUMSECTORS_X - 1); + const int32 nEndY = min(CWorld::GetSectorIndexY(vecSectorEndPos.y), NUMSECTORS_Y - 1); + for (int32 y = nStartY; y <= nEndY; y++) { + for (int32 x = nStartX; x <= nEndX; x++) { + CSector *pSector = CWorld::GetSector(x, y); + AddBlockadeSectorList(pSector->m_lists[ENTITYLIST_VEHICLES], pathNodes, &vecSectorStartPos); + AddBlockadeSectorList(pSector->m_lists[ENTITYLIST_VEHICLES_OVERLAP], pathNodes, &vecSectorStartPos); + AddBlockadeSectorList(pSector->m_lists[ENTITYLIST_OBJECTS], pathNodes, &vecSectorStartPos); + AddBlockadeSectorList(pSector->m_lists[ENTITYLIST_OBJECTS_OVERLAP], pathNodes, &vecSectorStartPos); + } + } + } + for (int32 i = 0; i < 416; i++) { + pathNodesList[i].prev = nil; + pathNodesList[i].next = nil; + } + CPedPathNode *pStartPathNode = &pathNodes[nodeStartX][nodeStartY]; + CPedPathNode *pEndPathNode = &pathNodes[nodeEndX][nodeEndY]; + pEndPathNode->bBlockade = false; + pEndPathNode->id = 0; + pEndPathNode->prev = nil; + pEndPathNode->next = pathNodesList; + pathNodesList[0].prev = pEndPathNode; + int32 pathNodeIndex = 0; + CPedPathNode *pPreviousNode = nil; + for (; pathNodeIndex < 414; pathNodeIndex++) + { + pPreviousNode = pathNodesList[pathNodeIndex].prev; + while (pPreviousNode && pPreviousNode != pStartPathNode) { + const uint8 nodeIdX = pPreviousNode->nodeIdX; + const uint8 nodeIdY = pPreviousNode->nodeIdY; + if (nodeIdX > 0) { + AddNodeToPathList(&pathNodes[nodeIdX - 1][nodeIdY], pathNodeIndex + 5, pathNodesList); + if (nodeIdY > 0) + AddNodeToPathList(&pathNodes[nodeIdX - 1][nodeIdY - 1], pathNodeIndex + 7, pathNodesList); + if (nodeIdY < 39) + AddNodeToPathList(&pathNodes[nodeIdX - 1][nodeIdY + 1], pathNodeIndex + 7, pathNodesList); + } + if (nodeIdX < 39) { + AddNodeToPathList(&pathNodes[nodeIdX + 1][nodeIdY], pathNodeIndex + 5, pathNodesList); + if (nodeIdY > 0) + AddNodeToPathList(&pathNodes[nodeIdX + 1][nodeIdY - 1], pathNodeIndex + 7, pathNodesList); + if (nodeIdY < 39) + AddNodeToPathList(&pathNodes[nodeIdX + 1][nodeIdY + 1], pathNodeIndex + 7, pathNodesList); + } + if (nodeIdY > 0) + AddNodeToPathList(&pathNodes[nodeIdX][nodeIdY - 1], pathNodeIndex + 5, pathNodesList); + if (nodeIdY < 39) + AddNodeToPathList(&pathNodes[nodeIdX][nodeIdY + 1], pathNodeIndex + 5, pathNodesList); + pPreviousNode = pPreviousNode->prev; + if (!pPreviousNode) + break; + } + + if (pPreviousNode && pPreviousNode == pStartPathNode) + break; + } + if (pathNodeIndex == 414) + return false; + CPedPathNode *pPathNode = pStartPathNode; + for (*pointsFound = 0; pPathNode != pEndPathNode && *pointsFound < maxPoints; ++ *pointsFound) { + const uint8 nodeIdX = pPathNode->nodeIdX; + const uint8 nodeIdY = pPathNode->nodeIdY; + if (nodeIdX > 0 && pathNodes[nodeIdX - 1][nodeIdY].id + 5 == pPathNode->id) + pPathNode = &pathNodes[nodeIdX - 1][nodeIdY]; + else if (nodeIdX > 39 && pathNodes[nodeIdX + 1][nodeIdY].id + 5 == pPathNode->id) + pPathNode = &pathNodes[nodeIdX + 1][nodeIdY]; + else if (nodeIdY > 0 && pathNodes[nodeIdX][nodeIdY - 1].id + 5 == pPathNode->id) + pPathNode = &pathNodes[nodeIdX][nodeIdY - 1]; + else if (nodeIdY > 39 && pathNodes[nodeIdX][nodeIdY + 1].id + 5 == pPathNode->id) + pPathNode = &pathNodes[nodeIdX][nodeIdY + 1]; + else if (nodeIdX > 0 && nodeIdY > 0 && pathNodes[nodeIdX - 1][nodeIdY - 1].id + 7 == pPathNode->id) + pPathNode = &pathNodes[nodeIdX - 1][nodeIdY - 1]; + else if (nodeIdX > 0 && nodeIdY < 39 && pathNodes[nodeIdX - 1][nodeIdY + 1].id + 7 == pPathNode->id) + pPathNode = &pathNodes[nodeIdX - 1][nodeIdY + 1]; + else if (nodeIdX < 39 && nodeIdY > 0 && pathNodes[nodeIdX + 1][nodeIdY - 1].id + 7 == pPathNode->id) + pPathNode = &pathNodes[nodeIdX + 1][nodeIdY - 1]; + else if (nodeIdX < 39 && nodeIdY < 39 && pathNodes[nodeIdX + 1][nodeIdY + 1].id + 7 == pPathNode->id) + pPathNode = &pathNodes[nodeIdX + 1][nodeIdY + 1]; + pointPoses[*pointsFound] = vecSectorStartPos; + pointPoses[*pointsFound].x += pPathNode->nodeIdX * 0.7f; + pointPoses[*pointsFound].y += pPathNode->nodeIdY * 0.7f; + } + return true; +} + + +void +CPedPath::AddNodeToPathList(CPedPathNode *pNodeToAdd, int16 id, CPedPathNode *pNodeList) +{ + if (!pNodeToAdd->bBlockade && id < pNodeToAdd->id) { + if (pNodeToAdd->id != INT16_MAX) + RemoveNodeFromList(pNodeToAdd); + AddNodeToList(pNodeToAdd, id, pNodeList); + } +} + +void +CPedPath::RemoveNodeFromList(CPedPathNode *pNode) +{ + pNode->next->prev = pNode->prev; + if (pNode->prev) + pNode->prev->next = pNode->next; +} + +void +CPedPath::AddNodeToList(CPedPathNode *pNode, int16 index, CPedPathNode *pList) +{ + pNode->prev = pList[index].prev; + pNode->next = &pList[index]; + if (pList[index].prev) + pList[index].prev->next = pNode; + pList[index].prev = pNode; + pNode->id = index; +} + +void +CPedPath::AddBlockadeSectorList(CPtrList& list, CPedPathNode(*pathNodes)[40], CVector *pPosition) +{ + CPtrNode* listNode = list.first; + while (listNode) { + CEntity* pEntity = (CEntity*)listNode->item; + if (pEntity->m_scanCode != CWorld::GetCurrentScanCode() && pEntity->bUsesCollision) { + pEntity->m_scanCode = CWorld::GetCurrentScanCode(); + AddBlockade(pEntity, pathNodes, pPosition); + } + listNode = listNode->next; + } +} + +void +CPedPath::AddBlockade(CEntity *pEntity, CPedPathNode(*pathNodes)[40], CVector *pPosition) +{ + const CColBox& boundingBox = pEntity->GetColModel()->boundingBox; + const float fBoundMaxY = boundingBox.max.y + 0.3f; + const float fBoundMinY = boundingBox.min.y - 0.3f; + const float fBoundMaxX = boundingBox.max.x + 0.3f; + const float fDistanceX = pPosition->x - pEntity->m_matrix.GetPosition().x; + const float fDistanceY = pPosition->y - pEntity->m_matrix.GetPosition().y; + const float fBoundRadius = pEntity->GetBoundRadius(); + CVector vecBoundCentre; + pEntity->GetBoundCentre(vecBoundCentre); + if (vecBoundCentre.x + fBoundRadius >= pPosition->x && + vecBoundCentre.y + fBoundRadius >= pPosition->y && + vecBoundCentre.x - fBoundRadius <= pPosition->x + 28.0f && + vecBoundCentre.y - fBoundRadius <= pPosition->y + 28.0f) { + for (int16 x = 0; x < 40; x++) { + const float pointX = x * 0.7f + fDistanceX; + for (int16 y = 0; y < 40; y++) { + if (!pathNodes[x][y].bBlockade) { + const float pointY = y * 0.7f + fDistanceY; + CVector2D point(pointX, pointY); + if (fBoundMaxX > Abs(DotProduct2D(point, pEntity->m_matrix.GetRight()))) { + float fDotProduct = DotProduct2D(point, pEntity->m_matrix.GetForward()); + if (fBoundMaxY > fDotProduct && fBoundMinY < fDotProduct) + pathNodes[x][y].bBlockade = true; + } + } + } + } + } +} + void CPathFind::Init(void) { @@ -1576,6 +1768,13 @@ CPathFind::DisplayPathData(void) } STARTPATCHES + InjectHook(0x42E680, &CPedPath::CalcPedRoute, PATCH_JUMP); + InjectHook(0x42F100, &CPedPath::AddNodeToPathList, PATCH_JUMP); + InjectHook(0x42F140, &CPedPath::RemoveNodeFromList, PATCH_JUMP); + InjectHook(0x42F160, &CPedPath::AddNodeToList, PATCH_JUMP); + InjectHook(0x42F1A0, &CPedPath::AddBlockade, PATCH_JUMP); + InjectHook(0x42F420, &CPedPath::AddBlockadeSectorList, PATCH_JUMP); + InjectHook(0x4294A0, &CPathFind::Init, PATCH_JUMP); InjectHook(0x42D580, &CPathFind::AllocatePathFindInfoMem, PATCH_JUMP); InjectHook(0x429540, &CPathFind::RegisterMapObject, PATCH_JUMP); diff --git a/src/control/PathFind.h b/src/control/PathFind.h index 81467cdf..ea88ade6 100644 --- a/src/control/PathFind.h +++ b/src/control/PathFind.h @@ -3,11 +3,7 @@ #include "Treadable.h" class CVehicle; - -class CPedPath { -public: - static bool CalcPedRoute(uint8, CVector, CVector, CVector*, int16*, int16); -}; +class CPtrList; enum { @@ -30,6 +26,33 @@ enum SWITCH_ON = 1, }; +enum +{ + ROUTE_ADD_BLOCKADE = 0, + ROUTE_NO_BLOCKADE = 1 +}; + +struct CPedPathNode +{ + bool bBlockade; + uint8 nodeIdX; + uint8 nodeIdY; + int16 id; + CPedPathNode* prev; + CPedPathNode* next; +}; +static_assert(sizeof(CPedPathNode) == 0x10, "CPedPathNode: error"); + +class CPedPath { +public: + static bool CalcPedRoute(int8 pathType, CVector position, CVector destination, CVector *pointPoses, int16 *pointsFound, int16 maxPoints); + static void AddNodeToPathList(CPedPathNode *pNodeToAdd, int16 id, CPedPathNode *pNodeList); + static void RemoveNodeFromList(CPedPathNode *pNode); + static void AddNodeToList(CPedPathNode *pNode, int16 index, CPedPathNode *pList); + static void AddBlockade(CEntity *pEntity, CPedPathNode(*pathNodes)[40], CVector *pPosition); + static void AddBlockadeSectorList(CPtrList& list, CPedPathNode(*pathNodes)[40], CVector *pPosition); +}; + struct CPathNode { CVector pos; |