aboutsummaryrefslogtreecommitdiff
path: root/src/control/PathFind.h
blob: bbfdf7b71bcb3e4d59132dda959934341262facb (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
#pragma once

#include "Treadable.h"

class CVehicle;
class CPtrList;

enum
{
	NodeTypeExtern = 1,
	NodeTypeIntern = 2,

	UseInRoadBlock = 1,
	ObjectEastWest = 2,
};

enum
{
	PATH_CAR = 0,
	PATH_PED = 1,
};

enum
{
	SWITCH_OFF = 0,
	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;
};

VALIDATE_SIZE(CPedPathNode, 0x10);

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;
	CPathNode *prev;
	CPathNode *next;
	int16 distance;		// in path search
	int16 objectIndex;
	int16 firstLink;
	uint8 numLinks;

	uint8 unkBits : 2;
	uint8 bDeadEnd : 1;
	uint8 bDisabled : 1;
	uint8 bBetweenLevels : 1;

	int8 group;

	CVector &GetPosition(void) { return pos; }
	void SetPosition(const CVector &p) { pos = p; }
	float GetX(void) { return pos.x; }
	float GetY(void) { return pos.y; }
	float GetZ(void) { return pos.z; }

	CPathNode *GetPrev(void) { return prev; }
	CPathNode *GetNext(void) { return next; }
	void SetPrev(CPathNode *node) { prev = node; }
	void SetNext(CPathNode *node) { next = node; }
};

union CConnectionFlags
{
	uint8 flags;
	struct {
		uint8 bCrossesRoad : 1;
		uint8 bTrafficLight : 1;
	};
};

struct CCarPathLink
{
	CVector2D pos;
	CVector2D dir;
	int16 pathNodeIndex;
	int8 numLeftLanes;
	int8 numRightLanes;
	uint8 trafficLightType;

	uint8 bBridgeLights : 1;
	// more?

	CVector2D &GetPosition(void) { return pos; }
	CVector2D &GetDirection(void) { return dir; }
	float GetX(void) { return pos.x; }
	float GetY(void) { return pos.y; }
	float GetDirX(void) { return dir.x; }
	float GetDirY(void) { return dir.y; }

	float OneWayLaneOffset()
	{
		if (numLeftLanes == 0)
			return 0.5f - 0.5f * numRightLanes;
		if (numRightLanes == 0)
			return 0.5f - 0.5f * numLeftLanes;
		return 0.5f;
	}
};

// This is what we're reading from the files, only temporary
struct CPathInfoForObject
{
	int16 x;
	int16 y;
	int16 z;
	int8 type;
	int8 next;
	int8 numLeftLanes;
	int8 numRightLanes;
	uint8 crossing : 1;
};
extern CPathInfoForObject *InfoForTileCars;
extern CPathInfoForObject *InfoForTilePeds;

struct CTempNode
{
	CVector pos;
	float dirX;
	float dirY;
	int16 link1;
	int16 link2;
	int8 numLeftLanes;
	int8 numRightLanes;
	int8 linkState;
};

struct CTempDetachedNode	// unused
{
	uint8 foo[20];
};

class CPathFind
{
public:
	CPathNode m_pathNodes[NUM_PATHNODES];
	CCarPathLink m_carPathLinks[NUM_CARPATHLINKS];
	CTreadable *m_mapObjects[NUM_MAPOBJECTS];
	uint8 m_objectFlags[NUM_MAPOBJECTS];
	int16 m_connections[NUM_PATHCONNECTIONS];
	int16 m_distances[NUM_PATHCONNECTIONS];
	CConnectionFlags m_connectionFlags[NUM_PATHCONNECTIONS];
	int16 m_carPathConnections[NUM_PATHCONNECTIONS];

	int32 m_numPathNodes;
	int32 m_numCarPathNodes;
	int32 m_numPedPathNodes;
	int16 m_numMapObjects;
	int16 m_numConnections;
	int32 m_numCarPathLinks;
	int32 unk;
	uint8 m_numGroups[2];
	CPathNode m_searchNodes[512];

	void Init(void);
	void AllocatePathFindInfoMem(int16 numPathGroups);
	void RegisterMapObject(CTreadable *mapObject);
	void StoreNodeInfoPed(int16 id, int16 node, int8 type, int8 next, int16 x, int16 y, int16 z, int16 width, bool crossing);
	void StoreNodeInfoCar(int16 id, int16 node, int8 type, int8 next, int16 x, int16 y, int16 z, int16 width, int8 numLeft, int8 numRight);
	void CalcNodeCoors(int16 x, int16 y, int16 z, int32 id, CVector *out);
	bool LoadPathFindData(void);
	void PreparePathData(void);
	void CountFloodFillGroups(uint8 type);
	void PreparePathDataForType(uint8 type, CTempNode *tempnodes, CPathInfoForObject *objectpathinfo,
		float maxdist, CTempDetachedNode *detachednodes, int32 numDetached);

	bool IsPathObject(int id) { return id < PATHNODESIZE && (InfoForTileCars[id*12].type != 0 || InfoForTilePeds[id*12].type != 0); }

	float CalcRoadDensity(float x, float y);
	bool TestForPedTrafficLight(CPathNode *n1, CPathNode *n2);
	bool TestCrossesRoad(CPathNode *n1, CPathNode *n2);
	void AddNodeToList(CPathNode *node, int32 listId);
	void RemoveNodeFromList(CPathNode *node);
	void RemoveBadStartNode(CVector pos, CPathNode **nodes, int16 *n);
	void SetLinksBridgeLights(float, float, float, float, bool);
	void SwitchOffNodeAndNeighbours(int32 nodeId, bool disable);
	void SwitchRoadsOffInArea(float x1, float x2, float y1, float y2, float z1, float z2, bool disable);
	void SwitchPedRoadsOffInArea(float x1, float x2, float y1, float y2, float z1, float z2, bool disable);
	void SwitchRoadsInAngledArea(float x1, float y1, float z1, float x2, float y2, float z2, float length, uint8 type, uint8 enable);
	void MarkRoadsBetweenLevelsNodeAndNeighbours(int32 nodeId);
	void MarkRoadsBetweenLevelsInArea(float x1, float x2, float y1, float y2, float z1, float z2);
	void PedMarkRoadsBetweenLevelsInArea(float x1, float x2, float y1, float y2, float z1, float z2);
	int32 FindNodeClosestToCoors(CVector coors, uint8 type, float distLimit, bool ignoreDisabled = false, bool ignoreBetweenLevels = false);
	int32 FindNodeClosestToCoorsFavourDirection(CVector coors, uint8 type, float dirX, float dirY);
	float FindNodeOrientationForCarPlacement(int32 nodeId);
	float FindNodeOrientationForCarPlacementFacingDestination(int32 nodeId, float x, float y, bool towards);
	bool NewGenerateCarCreationCoors(float x, float y, float dirX, float dirY, float spawnDist, float angleLimit, bool forward, CVector *pPosition, int32 *pNode1, int32 *pNode2, float *pPositionBetweenNodes, bool ignoreDisabled = false);
	bool GeneratePedCreationCoors(float x, float y, float minDist, float maxDist, float minDistOffScreen, float maxDistOffScreen, CVector *pPosition, int32 *pNode1, int32 *pNode2, float *pPositionBetweenNodes, CMatrix *camMatrix);
	CTreadable *FindRoadObjectClosestToCoors(CVector coors, uint8 type);
	void FindNextNodeWandering(uint8, CVector, CPathNode**, CPathNode**, uint8, uint8*);
	void DoPathSearch(uint8 type, CVector start, int32 startNodeId, CVector target, CPathNode **nodes, int16 *numNodes, int16 maxNumNodes, CVehicle *vehicle, float *dist, float distLimit, int32 forcedTargetNode);
	bool TestCoorsCloseness(CVector target, uint8 type, CVector start);
	void Save(uint8 *buf, uint32 *size);
	void Load(uint8 *buf, uint32 size);
	uint16 ConnectedNode(int id) { return m_connections[id]; }
	bool ConnectionCrossesRoad(int id) { return m_connectionFlags[id].bCrossesRoad; }
	bool ConnectionHasTrafficLight(int id) { return m_connectionFlags[id].bTrafficLight; }
	void ConnectionSetTrafficLight(int id) { m_connectionFlags[id].bTrafficLight = true; }

	void DisplayPathData(void);
};

VALIDATE_SIZE(CPathFind, 0x49bf4);

extern CPathFind ThePaths;

extern bool gbShowPedPaths;
extern bool gbShowCarPaths;
extern bool gbShowCarPathsLinks;