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# Conflicts: # premake5.lua # src/CMakeLists.txt # src/collision/Collision.cpp # src/core/Collision.h
27 lines
671 B
C++
27 lines
671 B
C++
#include "common.h"
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#include "ColSphere.h"
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#include "General.h"
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void
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CColSphere::Set(float radius, const CVector ¢er, uint8 surf, uint8 piece)
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{
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this->radius = radius;
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this->center = center;
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this->surface = surf;
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this->piece = piece;
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}
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bool
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CColSphere::IntersectRay(CVector const& from, CVector const& dir, CVector &entry, CVector &exit)
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{
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CVector distToCenter = from - center;
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float distToTouchSqr = distToCenter.MagnitudeSqr() - sq(radius);
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float root1, root2;
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if (!CGeneral::SolveQuadratic(1.0f, DotProduct(distToCenter, dir) * 2.f, distToTouchSqr, root1, root2))
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return false;
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entry = from + dir * root1;
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exit = from + dir * root2;
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return true;
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} |