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
|
#pragma once
#include "templates.h"
#include "Game.h" // for eLevelName
// If you spawn many tanks at once, you will see that collisions of two entity exceeds 32.
#ifdef FIX_BUGS
#define MAX_COLLISION_POINTS 64
#else
#define MAX_COLLISION_POINTS 32
#endif
struct CColSphere
{
CVector center;
float radius;
uint8 surface;
uint8 piece;
void Set(float radius, const CVector ¢er, uint8 surf, uint8 piece);
void Set(float radius, const CVector ¢er) { this->center = center; this->radius = radius; }
};
struct CColBox
{
CVector min;
CVector max;
uint8 surface;
uint8 piece;
void Set(const CVector &min, const CVector &max, uint8 surf, uint8 piece);
CVector GetSize(void) { return max - min; }
};
struct CColLine
{
CVector p0;
int pad0;
CVector p1;
int pad1;
CColLine(void) { };
CColLine(const CVector &p0, const CVector &p1) { this->p0 = p0; this->p1 = p1; };
void Set(const CVector &p0, const CVector &p1);
};
struct CColTriangle
{
uint16 a;
uint16 b;
uint16 c;
uint8 surface;
void Set(const CVector *v, int a, int b, int c, uint8 surf, uint8 piece);
};
struct CColTrianglePlane
{
CVector normal;
float dist;
uint8 dir;
void Set(const CVector *v, CColTriangle &tri);
void GetNormal(CVector &n) const { n = normal; }
float CalcPoint(const CVector &v) const { return DotProduct(normal, v) - dist; };
};
struct CColPoint
{
CVector point;
int pad1;
// the surface normal on the surface of point
CVector normal;
int pad2;
uint8 surfaceA;
uint8 pieceA;
uint8 surfaceB;
uint8 pieceB;
float depth;
};
struct CStoredCollPoly
{
CVector verts[3];
bool valid;
};
struct CColModel
{
CColSphere boundingSphere;
CColBox boundingBox;
short numSpheres;
short numLines;
short numBoxes;
short numTriangles;
int level;
bool ownsCollisionVolumes;
CColSphere *spheres;
CColLine *lines;
CColBox *boxes;
CVector *vertices;
CColTriangle *triangles;
CColTrianglePlane *trianglePlanes;
CColModel(void);
~CColModel(void);
void RemoveCollisionVolumes(void);
void CalculateTrianglePlanes(void);
void RemoveTrianglePlanes(void);
CLink<CColModel*> *GetLinkPtr(void);
void SetLinkPtr(CLink<CColModel*>*);
void GetTrianglePoint(CVector &v, int i) const;
CColModel& operator=(const CColModel& other);
};
class CCollision
{
public:
static eLevelName ms_collisionInMemory;
static CLinkList<CColModel*> ms_colModelCache;
static void Init(void);
static void Shutdown(void);
static void Update(void);
static void LoadCollisionWhenINeedIt(bool changeLevel);
static void SortOutCollisionAfterLoad(void);
static void LoadCollisionScreen(eLevelName level);
static void DrawColModel(const CMatrix &mat, const CColModel &colModel);
static void DrawColModel_Coloured(const CMatrix &mat, const CColModel &colModel, int32 id);
static void CalculateTrianglePlanes(CColModel *model);
// all these return true if there's a collision
static bool TestSphereSphere(const CColSphere &s1, const CColSphere &s2);
static bool TestSphereBox(const CColSphere &sph, const CColBox &box);
static bool TestLineBox(const CColLine &line, const CColBox &box);
static bool TestVerticalLineBox(const CColLine &line, const CColBox &box);
static bool TestLineTriangle(const CColLine &line, const CVector *verts, const CColTriangle &tri, const CColTrianglePlane &plane);
static bool TestLineSphere(const CColLine &line, const CColSphere &sph);
static bool TestSphereTriangle(const CColSphere &sphere, const CVector *verts, const CColTriangle &tri, const CColTrianglePlane &plane);
static bool TestLineOfSight(const CColLine &line, const CMatrix &matrix, CColModel &model, bool ignoreSeeThrough);
static bool ProcessSphereSphere(const CColSphere &s1, const CColSphere &s2, CColPoint &point, float &mindistsq);
static bool ProcessSphereBox(const CColSphere &sph, const CColBox &box, CColPoint &point, float &mindistsq);
static bool ProcessLineBox(const CColLine &line, const CColBox &box, CColPoint &point, float &mindist);
static bool ProcessVerticalLineTriangle(const CColLine &line, const CVector *verts, const CColTriangle &tri, const CColTrianglePlane &plane, CColPoint &point, float &mindist, CStoredCollPoly *poly);
static bool ProcessLineTriangle(const CColLine &line , const CVector *verts, const CColTriangle &tri, const CColTrianglePlane &plane, CColPoint &point, float &mindist);
static bool ProcessLineSphere(const CColLine &line, const CColSphere &sphere, CColPoint &point, float &mindist);
static bool ProcessSphereTriangle(const CColSphere &sph, const CVector *verts, const CColTriangle &tri, const CColTrianglePlane &plane, CColPoint &point, float &mindistsq);
static bool ProcessLineOfSight(const CColLine &line, const CMatrix &matrix, CColModel &model, CColPoint &point, float &mindist, bool ignoreSeeThrough);
static bool ProcessVerticalLine(const CColLine &line, const CMatrix &matrix, CColModel &model, CColPoint &point, float &mindist, bool ignoreSeeThrough, CStoredCollPoly *poly);
static int32 ProcessColModels(const CMatrix &matrixA, CColModel &modelA, const CMatrix &matrixB, CColModel &modelB, CColPoint *spherepoints, CColPoint *linepoints, float *linedists);
static bool IsStoredPolyStillValidVerticalLine(const CVector &pos, float z, CColPoint &point, CStoredCollPoly *poly);
static float DistToLine(const CVector *l0, const CVector *l1, const CVector *point);
static float DistToLine(const CVector *l0, const CVector *l1, const CVector *point, CVector &closest);
};
|
