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-rw-r--r--src/control/PathFind.cpp218
-rw-r--r--src/control/PathFind.h33
2 files changed, 244 insertions, 7 deletions
diff --git a/src/control/PathFind.cpp b/src/control/PathFind.cpp
index 61cd3d4e..dbfd6d0e 100644
--- a/src/control/PathFind.cpp
+++ b/src/control/PathFind.cpp
@@ -14,8 +14,6 @@ bool gbShowCarPathsLinks;
CPathFind &ThePaths = *(CPathFind*)0x8F6754;
-WRAPPER bool CPedPath::CalcPedRoute(uint8, CVector, CVector, CVector*, int16*, int16) { EAXJMP(0x42E680); }
-
#define MAX_DIST INT16_MAX-1
// object flags:
@@ -28,6 +26,215 @@ 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) > 23.8f || Abs(vecDistance.y) > 23.8f || Abs(vecDistance.z) > 23.8f)
+ 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) * 1.4286f;
+ const int16 nodeStartY = (position.y - vecSectorStartPos.y) * 1.4286f;
+ const int16 nodeEndX = (destination.x - vecSectorStartPos.x) * 1.4286f;
+ const int16 nodeEndY = (destination.y - vecSectorStartPos.y) * 1.4286f;
+ 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 = 0x7FFF;
+ 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) {
+ if (nodeIdX >= 39 || pathNodes[nodeIdX + 1][nodeIdY].id + 5 != pPathNode->id) {
+ if (nodeIdY <= 0 || pathNodes[nodeIdX][nodeIdY - 1].id + 5 != pPathNode->id) {
+ if (nodeIdY >= 39 || pathNodes[nodeIdX][nodeIdY + 1].id + 5 != pPathNode->id) {
+ if (nodeIdX <= 0 || nodeIdY <= 0 || pathNodes[nodeIdX - 1][nodeIdY - 1].id + 7 != pPathNode->id) {
+ if (nodeIdX <= 0 || nodeIdY >= 39 || pathNodes[nodeIdX - 1][nodeIdY + 1].id + 7 != pPathNode->id) {
+ if (nodeIdX >= 39 || nodeIdY <= 0 || pathNodes[nodeIdX + 1][nodeIdY - 1].id + 7 != pPathNode->id) {
+ if (nodeIdX < 39 && nodeIdY < 39 && pathNodes[nodeIdX + 1][nodeIdY + 1].id + 7 == pPathNode->id)
+ pPathNode = &pathNodes[nodeIdX + 1][nodeIdY + 1];
+ } else {
+ pPathNode = &pathNodes[nodeIdX + 1][nodeIdY - 1];
+ }
+ } else {
+ pPathNode = &pathNodes[nodeIdX - 1][nodeIdY + 1];
+ }
+ } else {
+ pPathNode = &pathNodes[nodeIdX - 1][nodeIdY - 1];
+ }
+ } else {
+ pPathNode = &pathNodes[nodeIdX][nodeIdY + 1];
+ }
+ } else {
+ pPathNode = &pathNodes[nodeIdX][nodeIdY - 1];
+ }
+ }
+ else {
+ pPathNode = &pathNodes[nodeIdX + 1][nodeIdY];
+ }
+ }
+ else {
+ pPathNode = &pathNodes[nodeIdX - 1][nodeIdY];
+ }
+ pointPoses[*pointsFound] = vecSectorStartPos;
+ pointPoses[*pointsFound].x += (float)pPathNode->nodeIdX * 0.7f;
+ pointPoses[*pointsFound].y += (float)pPathNode->nodeIdY * 0.7f;
+ }
+ return true;
+}
+
+
+void
+CPedPath::AddNodeToPathList(CPedPathNode *pNodeToAdd, int16 id, CPedPathNode *pNodeList)
+{
+ if (!pNodeToAdd->bBlockade && id < pNodeToAdd->id) {
+ if (pNodeToAdd->id != 0x7FFF)
+ 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 = (float)x * 0.7f + fDistanceX;
+ for (int16 y = 0; y < 40; y++) {
+ if (!pathNodes[x][y].bBlockade) {
+ const float pointY = (float)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 +1783,13 @@ 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;