turanszkij
80 lines
2.0 KiB
C++
80 lines
2.0 KiB
C++
#ifndef _INTERSECTABLES_H_
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#define _INTERSECTABLES_H_
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#include "CommonInclude.h"
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#include "wiArchive.h"
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struct SPHERE;
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struct RAY;
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struct AABB;
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struct AABB {
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enum INTERSECTION_TYPE {
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OUTSIDE,
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INTERSECTS,
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INSIDE,
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};
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XMFLOAT3 corners[8];
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AABB();
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AABB(const XMFLOAT3& min, const XMFLOAT3& max);
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void create(const XMFLOAT3& min, const XMFLOAT3& max);
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void createFromHalfWidth(const XMFLOAT3& center, const XMFLOAT3& halfwidth);
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AABB get(const XMMATRIX& mat);
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AABB get(const XMFLOAT4X4& mat);
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XMFLOAT3 getMin() const;
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XMFLOAT3 getMax() const;
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XMFLOAT3 getCenter() const;
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XMFLOAT3 getHalfWidth() const;
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XMMATRIX getAsBoxMatrix() const;
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float getArea() const;
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float getRadius() const;
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INTERSECTION_TYPE intersects(const AABB& b) const;
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bool intersects(const XMFLOAT3& p) const;
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bool intersects(const RAY& ray) const;
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AABB operator* (float a);
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static AABB Merge(const AABB& a, const AABB& b);
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void Serialize(wiArchive& archive);
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};
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struct SPHERE {
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float radius;
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XMFLOAT3 center;
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SPHERE() :center(XMFLOAT3(0, 0, 0)), radius(0) {}
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SPHERE(const XMFLOAT3& c, float r) :center(c), radius(r) {}
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bool intersects(const AABB& b) const;
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bool intersects(const SPHERE& b) const;
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bool intersects(const RAY& b) const;
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};
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struct RAY {
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XMFLOAT3 origin, direction, direction_inverse;
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RAY(const XMFLOAT3& newOrigin = XMFLOAT3(0, 0, 0), const XMFLOAT3& newDirection = XMFLOAT3(0, 0, 1)) :origin(newOrigin), direction(newDirection) {}
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RAY(const XMVECTOR& newOrigin, const XMVECTOR& newDirection) {
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XMStoreFloat3(&origin, newOrigin);
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XMStoreFloat3(&direction, newDirection);
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XMStoreFloat3(&direction_inverse, XMVectorDivide(XMVectorSet(1, 1, 1, 1), newDirection));
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}
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bool intersects(const AABB& b) const;
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bool intersects(const SPHERE& b) const;
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};
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class Hitbox2D
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{
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public:
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XMFLOAT2 pos;
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XMFLOAT2 siz;
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Hitbox2D() :pos(XMFLOAT2(0, 0)), siz(XMFLOAT2(0, 0)) {}
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Hitbox2D(const XMFLOAT2& newPos, const XMFLOAT2 newSiz) :pos(newPos), siz(newSiz) {}
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~Hitbox2D() {};
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bool intersects(const Hitbox2D& b);
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};
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#endif // _INTERSECTABLES_H_
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