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89 lines
4.4 KiB
C++
89 lines
4.4 KiB
C++
#pragma once
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#include <vector>
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#include "Vector2f.h"
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namespace utils
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{
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const float g_Pi{ 3.1415926535f };
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#pragma region OpenGLDrawFunctionality
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void SetColor( const Color4f& color );
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void ClearBackground( const Color4f& color );
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void DrawPoint( float x, float y, float pointSize = 1.0f );
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void DrawPoint( const Point2f& p, float pointSize = 1.0f );
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void DrawPoints( Point2f *pVertices, int nrVertices, float pointSize = 1.0f );
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void DrawLine( float x1, float y1, float x2, float y2, float lineWidth = 1.0f );
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void DrawLine( const Point2f& p1, const Point2f& p2, float lineWidth = 1.0f );
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void DrawTriangle(const Point2f& p1, const Point2f& p2, const Point2f& p3, float lineWidth = 1);
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void FillTriangle(const Point2f& p1, const Point2f& p2, const Point2f& p3);
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void DrawRect(float left, float bottom, float width, float height, float lineWidth = 1.0f);
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void DrawRect(const Point2f& bottomLeft, float width, float height, float lineWidth = 1.0f);
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void DrawRect(const Rectf& rect, float lineWidth = 1.0f);
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void FillRect(float left, float bottom, float width, float height);
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void FillRect(const Point2f& bottomLeft, float width, float height);
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void FillRect(const Rectf& rect);
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void DrawEllipse(float centerX, float centerY, float radX, float radY, float lineWidth = 1.0f);
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void DrawEllipse(const Point2f& center, float radX, float radY, float lineWidth = 1.0f);
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void DrawEllipse(const Ellipsef& ellipse , float lineWidth = 1.0f );
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void FillEllipse( float centerX, float centerY, float radX, float radY );
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void FillEllipse(const Ellipsef& ellipse );
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void FillEllipse(const Point2f& center, float radX, float radY);
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// Draws an arc. The angle parameters are in radians, not in degrees.
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void DrawArc(float centerX, float centerY, float radX, float radY, float fromAngle, float tillAngle, float lineWidth = 1.0f);
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// Draws an arc. The angle parameters are in radians, not in degrees.
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void DrawArc(const Point2f& center, float radX, float radY, float fromAngle, float tillAngle, float lineWidth = 1.0f);
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// Fills an arc. The angle parameters are in radians, not in degrees.
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void FillArc(float centerX, float centerY, float radX, float radY, float fromAngle, float tillAngle);
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// Fills an arc. The angle parameters are in radians, not in degrees.
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void FillArc(const Point2f& center, float radX, float radY, float fromAngle, float tillAngle);
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void DrawPolygon( const std::vector<Point2f>& vertices, bool closed = true, float lineWidth = 1.0f );
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void DrawPolygon( const Point2f* pVertices, size_t nrVertices, bool closed = true, float lineWidth = 1.0f );
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void FillPolygon( const std::vector<Point2f>& vertices);
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void FillPolygon( const Point2f* pVertices, size_t nrVertices);
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#pragma endregion OpenGLDrawFunctionality
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#pragma region CollisionFunctionality
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struct HitInfo
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{
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float lambda;
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Point2f intersectPoint;
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Vector2f normal;
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};
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float GetDistance(float x1, float y1, float x2, float y2);
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float GetDistance(const Point2f& p1, const Point2f& p2);
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bool IsPointInRect(const Point2f& p, const Rectf& r);
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bool IsPointInCircle(const Point2f& p, const Circlef& c);
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bool IsPointInPolygon( const Point2f& p, const std::vector<Point2f>& vertices );
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bool IsPointInPolygon( const Point2f& p, const Point2f* vertices, size_t nrVertices );
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bool IsOverlapping( const Point2f& a, const Point2f& b, const Circlef& c );
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bool IsOverlapping( const Point2f& a, const Point2f& b, const Rectf& r );
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bool IsOverlapping(const Rectf & r1, const Rectf & r2);
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bool IsOverlapping( const Rectf& r, const Circlef& c );
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bool IsOverlapping( const Circlef& c1, const Circlef& c2 );
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bool IsOverlapping( const std::vector<Point2f>& vertices, const Circlef& c );
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bool IsOverlapping( const Point2f* vertices, size_t nrVertices, const Circlef& c );
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bool Raycast( const Point2f* vertices, const size_t nrVertices, const Point2f& rayP1, const Point2f& rayP2, HitInfo& hitInfo );
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bool Raycast( const std::vector<Point2f>& vertices, const Point2f& rayP1, const Point2f& rayP2, HitInfo& hitInfo );
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bool IntersectLineSegments(const Point2f& p1, const Point2f& p2, const Point2f& q1, const Point2f& q2, float& outLambda1, float& outLambda2, float epsilon = 1e-6);
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float DistPointLineSegment(const Point2f& p, const Point2f& a, const Point2f& b);
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bool IsPointOnLineSegment(const Point2f& p, const Point2f& a, const Point2f& b);
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bool IntersectRectLine(const Rectf& r, const Point2f& p1, const Point2f& p2, float& intersectMin, float& intersectMax);
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int randRange(int min, int max);
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#pragma endregion CollisionFunctionality
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} |