diff options
Diffstat (limited to 'src/core/Collision.cpp')
| -rw-r--r-- | src/core/Collision.cpp | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/src/core/Collision.cpp b/src/core/Collision.cpp index d15ccca5..1ed08867 100644 --- a/src/core/Collision.cpp +++ b/src/core/Collision.cpp @@ -457,7 +457,7 @@ CCollision::TestLineSphere(const CColLine &line, const CColSphere &sph) // I leave in the strange -2 factors even though they serve no real purpose float projline = -2.0f * DotProduct(v01, v0c); // project v0c onto line // Square of tangent from p0 multiplied by line length so we can compare with projline. - // The length of the tangent would be this: sqrt((c-p0)^2 - r^2). + // The length of the tangent would be this: Sqrt((c-p0)^2 - r^2). // Negative if p0 is inside the sphere! This breaks the test! float tansq = 4.0f * linesq * (sph.center.MagnitudeSqr() - 2.0f*DotProduct(sph.center, line.p0) + line.p0.MagnitudeSqr() - sph.radius*sph.radius); @@ -467,10 +467,10 @@ CCollision::TestLineSphere(const CColLine &line, const CColSphere &sph) return false; // projline (negative in GTA for some reason) is the point on the line // in the middle of the two intersection points (startin from p0). - // sqrt(diffsq) somehow works out to be the distance from that + // Sqrt(diffsq) somehow works out to be the distance from that // midpoint to the intersection points. // So subtract that and get rid of the awkward scaling: - float f = (-projline - sqrt(diffsq)) / (2.0f*linesq); + float f = (-projline - Sqrt(diffsq)) / (2.0f*linesq); // f should now be in range [0, 1] for [p0, p1] return f >= 0.0f && f <= 1.0f; } @@ -480,7 +480,7 @@ CCollision::TestSphereTriangle(const CColSphere &sphere, const CVector *verts, const CColTriangle &tri, const CColTrianglePlane &plane) { // If sphere and plane don't intersect, no collision - if(fabs(plane.CalcPoint(sphere.center)) > sphere.radius) + if(Abs(plane.CalcPoint(sphere.center)) > sphere.radius) return false; const CVector &va = verts[tri.a]; @@ -627,7 +627,7 @@ CCollision::ProcessSphereBox(const CColSphere &sph, const CColBox &box, CColPoin dist = sph.center - p; float lensq = dist.MagnitudeSqr(); if(lensq < mindistsq){ - point.normal = dist * (1.0f/sqrt(lensq)); + point.normal = dist * (1.0f/Sqrt(lensq)); point.point = sph.center - point.normal; point.surfaceA = sph.surface; point.pieceA = sph.piece; @@ -669,7 +669,7 @@ CCollision::ProcessSphereBox(const CColSphere &sph, const CColBox &box, CColPoin dist = sph.center - p; float lensq = dist.MagnitudeSqr(); if(lensq < mindistsq){ - float len = sqrt(lensq); + float len = Sqrt(lensq); point.point = p; point.normal = dist * (1.0f/len); point.surfaceA = sph.surface; @@ -816,7 +816,7 @@ CCollision::ProcessLineSphere(const CColLine &line, const CColSphere &sphere, CC if(diffsq < 0.0f) return false; // point of first intersection, in range [0,1] between p0 and p1 - float t = (projline - sqrt(diffsq)) / linesq; + float t = (projline - Sqrt(diffsq)) / linesq; // if not on line or beyond mindist, no intersection if(t < 0.0f || t > 1.0f || t >= mindist) return false; @@ -1010,7 +1010,7 @@ CCollision::ProcessSphereTriangle(const CColSphere &sphere, // If sphere and plane don't intersect, no collision float planedist = plane.CalcPoint(sphere.center); float distsq = planedist*planedist; - if(fabs(planedist) > sphere.radius || distsq > mindistsq) + if(Abs(planedist) > sphere.radius || distsq > mindistsq) return false; const CVector &va = verts[tri.a]; @@ -1057,7 +1057,7 @@ CCollision::ProcessSphereTriangle(const CColSphere &sphere, else assert(0); }else if(testcase == 3){ // center is in triangle - dist = fabs(planedist); + dist = Abs(planedist); p = sphere.center - normal*planedist; }else assert(0); // front fell off @@ -1173,7 +1173,7 @@ enum { // This checks model A's spheres and lines against model B's spheres, boxes and triangles. // Returns the number of A's spheres that collide. // Returned ColPoints are in world space. -// NB: lines do not seem to be supported very well, use with caution +// NB: only vehicles can have col models with lines, exactly 4, one for each wheel int32 CCollision::ProcessColModels(const CMatrix &matrixA, CColModel &modelA, const CMatrix &matrixB, CColModel &modelB, @@ -1333,7 +1333,7 @@ CCollision::DistToLine(const CVector *l0, const CVector *l1, const CVector *poin if(dot >= lensq) return (*point - *l1).Magnitude(); // distance to line - return sqrt((*point - *l0).MagnitudeSqr() - dot*dot/lensq); + return Sqrt((*point - *l0).MagnitudeSqr() - dot*dot/lensq); } // same as above but also return the point on the line @@ -1641,7 +1641,7 @@ CColTrianglePlane::Set(const CVector *v, CColTriangle &tri) normal = CrossProduct(vc-va, vb-va); normal.Normalise(); dist = DotProduct(normal, va); - CVector an(fabs(normal.x), fabs(normal.y), fabs(normal.z)); + CVector an(Abs(normal.x), Abs(normal.y), Abs(normal.z)); // find out largest component and its direction if(an.x > an.y && an.x > an.z) dir = normal.x < 0.0f ? DIR_X_NEG : DIR_X_POS; |