60 lines
1.3 KiB
C++
60 lines
1.3 KiB
C++
#pragma once
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struct vector_type
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{
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float X;
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float Y;
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float Z;
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};
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struct __declspec(align(4)) rectangle_type
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{
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int XPosition;
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int YPosition;
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int Width;
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int Height;
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};
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struct circle_type
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{
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vector_type Center;
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float RadiusSq;
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};
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struct __declspec(align(4)) ray_type
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{
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vector_type Origin;
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vector_type Direction;
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float MaxDistance;
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float MinDistance;
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};
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struct __declspec(align(4)) line_type
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{
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vector_type PerpendicularL;
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vector_type Direction;
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float PreComp1;
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float OriginX;
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float OriginY;
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float CompTmp1;
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float Unknown10;
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float Unknown11;
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};
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class maths
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{
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public:
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static void enclosing_box(rectangle_type* rect1, rectangle_type* rect2, rectangle_type* dstRect);
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static int rectangle_clip(rectangle_type* rect1, rectangle_type* rect2, rectangle_type* dstRect);
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static int overlapping_box(rectangle_type* rect1, rectangle_type* rect2, rectangle_type* dstRect);
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static float ray_intersect_circle(ray_type* ray, circle_type* circle);
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static float normalize_2d(vector_type* vec);
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static void line_init(line_type* line, float x0, float y0, float x1, float y1);
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static float ray_intersect_line(ray_type* ray, line_type* line);
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static void cross(vector_type* vec1, vector_type* vec2, vector_type* dstVec);
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static float magnitude(vector_type* vec);
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static void vector_add(vector_type* vec1Dst, vector_type* vec2);
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};
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