From 9f61c9e6ac6b1ac5692cf6352d2ebbd47a31a686 Mon Sep 17 00:00:00 2001 From: claude-bot Date: Mon, 13 Jul 2026 12:27:07 +0000 Subject: Import Cai1Hsu/re3 @ miami (reVC / GTA:VC decompilation) Snapshot import (no upstream history) into git.ancap.in.ua/claude, per @lzcnt. Source: https://github.com/Cai1Hsu/re3 branch miami. --- src/math/Vector.cpp | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 src/math/Vector.cpp (limited to 'src/math/Vector.cpp') diff --git a/src/math/Vector.cpp b/src/math/Vector.cpp new file mode 100644 index 0000000..ee76e55 --- /dev/null +++ b/src/math/Vector.cpp @@ -0,0 +1,46 @@ +#include "common.h" + +void +CVector::Normalise(void) +{ + float sq = MagnitudeSqr(); + if (sq > 0.0f) { + float invsqrt = RecipSqrt(sq); + x *= invsqrt; + y *= invsqrt; + z *= invsqrt; + } else + x = 1.0f; +} + +CVector +CrossProduct(const CVector &v1, const CVector &v2) +{ + return CVector(v1.y * v2.z - v1.z * v2.y, v1.z * v2.x - v1.x * v2.z, v1.x * v2.y - v1.y * v2.x); +} + +CVector +Multiply3x3(const CMatrix &mat, const CVector &vec) +{ + // TODO: VU0 code + return CVector(mat.rx * vec.x + mat.fx * vec.y + mat.ux * vec.z, + mat.ry * vec.x + mat.fy * vec.y + mat.uy * vec.z, + mat.rz * vec.x + mat.fz * vec.y + mat.uz * vec.z); +} + +CVector +Multiply3x3(const CVector &vec, const CMatrix &mat) +{ + return CVector(mat.rx * vec.x + mat.ry * vec.y + mat.rz * vec.z, + mat.fx * vec.x + mat.fy * vec.y + mat.fz * vec.z, + mat.ux * vec.x + mat.uy * vec.y + mat.uz * vec.z); +} + +CVector +operator*(const CMatrix &mat, const CVector &vec) +{ + // TODO: VU0 code + return CVector(mat.rx * vec.x + mat.fx * vec.y + mat.ux * vec.z + mat.px, + mat.ry * vec.x + mat.fy * vec.y + mat.uy * vec.z + mat.py, + mat.rz * vec.x + mat.fz * vec.y + mat.uz * vec.z + mat.pz); +} -- cgit v1.2.3