mirror of https://github.com/AxioDL/metaforce.git
116 lines
4.8 KiB
C++
116 lines
4.8 KiB
C++
#include "CCollidableAABox.hpp"
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#include "CollisionUtil.hpp"
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#include "CCollidableSphere.hpp"
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#include "CCollisionInfo.hpp"
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#include "CInternalRayCastStructure.hpp"
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namespace urde {
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const CCollisionPrimitive::Type CCollidableAABox::sType(CCollidableAABox::SetStaticTableIndex, "CCollidableAABox");
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u32 CCollidableAABox::sTableIndex = -1;
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CCollidableAABox::CCollidableAABox() {}
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CCollidableAABox::CCollidableAABox(const zeus::CAABox& aabox, const CMaterialList& list)
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: CCollisionPrimitive(list), x10_aabox(aabox) {}
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zeus::CAABox CCollidableAABox::Transform(const zeus::CTransform& xf) const {
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return {xf.origin + x10_aabox.min, xf.origin + x10_aabox.max};
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}
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u32 CCollidableAABox::GetTableIndex() const { return sTableIndex; }
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zeus::CAABox CCollidableAABox::CalculateAABox(const zeus::CTransform& xf) const { return Transform(xf); }
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zeus::CAABox CCollidableAABox::CalculateLocalAABox() const { return x10_aabox; }
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FourCC CCollidableAABox::GetPrimType() const { return SBIG('AABX'); }
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CRayCastResult CCollidableAABox::CastRayInternal(const CInternalRayCastStructure& rayCast) const {
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if (!rayCast.GetFilter().Passes(GetMaterial()))
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return {};
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zeus::CTransform rayCastXfInv = rayCast.GetTransform().inverse();
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zeus::CVector3f localRayStart = rayCastXfInv * rayCast.GetRay().start;
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zeus::CVector3f localRayDir = rayCastXfInv.rotate(rayCast.GetRay().dir);
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float tMin, tMax;
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int axis;
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bool sign;
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if (!CollisionUtil::BoxLineTest(x10_aabox, localRayStart, localRayDir, tMin, tMax, axis, sign) || tMin < 0.f ||
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(rayCast.GetMaxTime() > 0.f && tMin > rayCast.GetMaxTime()))
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return {};
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zeus::CVector3f planeNormal;
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planeNormal[axis] = sign ? 1.f : -1.f;
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float planeD = axis ? x10_aabox.min[axis] : -x10_aabox.max[axis];
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CRayCastResult result(tMin, localRayStart + tMin * localRayDir, zeus::CPlane(planeNormal, planeD), GetMaterial());
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result.Transform(rayCast.GetTransform());
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return result;
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}
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const CCollisionPrimitive::Type& CCollidableAABox::GetType() { return sType; }
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void CCollidableAABox::SetStaticTableIndex(u32 index) { sTableIndex = index; }
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bool CCollidableAABox::CollideMovingAABox(const CInternalCollisionStructure& collision, const zeus::CVector3f& dir,
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double& dOut, CCollisionInfo& infoOut) {
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const CCollidableAABox& p0 = static_cast<const CCollidableAABox&>(collision.GetLeft().GetPrim());
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const CCollidableAABox& p1 = static_cast<const CCollidableAABox&>(collision.GetRight().GetPrim());
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zeus::CAABox b0 = p0.Transform(collision.GetLeft().GetTransform());
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zeus::CAABox b1 = p1.Transform(collision.GetRight().GetTransform());
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double d;
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zeus::CVector3f point, normal;
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if (CollisionUtil::AABox_AABox_Moving(b0, b1, dir, d, point, normal) && d > 0.0 && d < dOut) {
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dOut = d;
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infoOut = CCollisionInfo(point, p0.GetMaterial(), p1.GetMaterial(), normal, -normal);
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return true;
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}
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return false;
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}
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bool CCollidableAABox::CollideMovingSphere(const CInternalCollisionStructure& collision, const zeus::CVector3f& dir,
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double& dOut, CCollisionInfo& infoOut) {
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const CCollidableAABox& p0 = static_cast<const CCollidableAABox&>(collision.GetLeft().GetPrim());
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const CCollidableSphere& p1 = static_cast<const CCollidableSphere&>(collision.GetRight().GetPrim());
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zeus::CAABox b0 = p0.CalculateAABox(collision.GetLeft().GetTransform());
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zeus::CSphere s1 = p1.Transform(collision.GetRight().GetTransform());
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double d = dOut;
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zeus::CVector3f point, normal;
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if (CollisionUtil::MovingSphereAABox(s1, b0, -dir, d, point, normal) && d < dOut) {
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point = s1.position - s1.radius * normal;
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dOut = d;
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infoOut = CCollisionInfo(point, p0.GetMaterial(), p1.GetMaterial(), -normal);
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return true;
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}
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return false;
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}
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namespace Collide {
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bool AABox_AABox(const CInternalCollisionStructure& collision, CCollisionInfoList& list) {
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const CCollidableAABox& box0 = static_cast<const CCollidableAABox&>(collision.GetLeft().GetPrim());
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const CCollidableAABox& box1 = static_cast<const CCollidableAABox&>(collision.GetRight().GetPrim());
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zeus::CAABox aabb0 = box0.Transform(collision.GetLeft().GetTransform());
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zeus::CAABox aabb1 = box1.Transform(collision.GetRight().GetTransform());
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return CollisionUtil::AABoxAABoxIntersection(aabb0, box0.GetMaterial(), aabb1, box1.GetMaterial(), list);
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}
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bool AABox_AABox_Bool(const CInternalCollisionStructure& collision) {
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const CCollidableAABox& box0 = static_cast<const CCollidableAABox&>(collision.GetLeft().GetPrim());
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const CCollidableAABox& box1 = static_cast<const CCollidableAABox&>(collision.GetRight().GetPrim());
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zeus::CAABox aabb0 = box0.Transform(collision.GetLeft().GetTransform());
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zeus::CAABox aabb1 = box1.Transform(collision.GetRight().GetTransform());
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return CollisionUtil::AABoxAABoxIntersection(aabb0, aabb1);
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}
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} // namespace Collide
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} // namespace urde
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