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#pragma once
#include "CompressedVector.h"
enum Direction {
DIR_X_POS,
DIR_X_NEG,
DIR_Y_POS,
DIR_Y_NEG,
DIR_Z_POS,
DIR_Z_NEG,
};
struct CColTriangle
{
uint16 a;
uint16 b;
uint16 c;
uint8 surface;
void Set(int a, int b, int c, uint8 surf)
{
this->a = a;
this->b = b;
this->c = c;
this->surface = surf;
}
};
struct CColTrianglePlane
{
#ifdef VU_COLLISION
CompressedVector normal;
int16 dist;
void Set(const CVector &va, const CVector &vb, const CVector &vc);
void Set(const CompressedVector *v, CColTriangle &tri) { Set(v[tri.a].Get(), v[tri.b].Get(), v[tri.c].Get()); }
void GetNormal(CVector &n) const { n.x = normal.x/4096.0f; n.y = normal.y/4096.0f; n.z = normal.z/4096.0f; }
float CalcPoint(const CVector &v) const { CVector n; GetNormal(n); return DotProduct(n, v) - dist/128.0f; };
#ifdef GTA_PS2
void Unpack(uint128 &qword) const {
__asm__ volatile (
"lh $8, 0(%1)\n"
"lh $9, 2(%1)\n"
"lh $10, 4(%1)\n"
"lh $11, 6(%1)\n"
"pextlw $10, $8\n"
"pextlw $11, $9\n"
"pextlw $2, $11, $10\n"
"sq $2, %0\n"
: "=m" (qword)
: "r" (this)
: "$8", "$9", "$10", "$11", "$2"
);
}
#else
void Unpack(int32 *qword) const {
qword[0] = normal.x;
qword[1] = normal.y;
qword[2] = normal.z;
qword[3] = dist;
}
#endif
#else
// TODO(LCS): LCS actually uses CompressedVector too
CVector normal;
float dist;
uint8 dir;
void Set(const CVector &va, const CVector &vb, const CVector &vc);
void Set(const CompressedVector *v, CColTriangle &tri) { Set(v[tri.a].Get(), v[tri.b].Get(), v[tri.c].Get()); }
void GetNormal(CVector &n) const { n = normal; }
float GetNormalX() const { return normal.x; }
float GetNormalY() const { return normal.y; }
float GetNormalZ() const { return normal.z; }
float CalcPoint(const CVector &v) const { return DotProduct(normal, v) - dist; };
#endif
};
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