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brammie15
2024-02-27 10:10:02 +01:00
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#pragma once
#include <vector>
#include "Vector2f.h"
namespace utils
{
const float g_Pi{ 3.1415926535f };
#pragma region OpenGLDrawFunctionality
void SetColor( const Color4f& color );
void DrawPoint( float x, float y, float pointSize = 1.0f );
void DrawPoint( const Point2f& p, float pointSize = 1.0f );
void DrawPoints( Point2f *pVertices, int nrVertices, float pointSize = 1.0f );
void DrawLine( float x1, float y1, float x2, float y2, float lineWidth = 1.0f );
void DrawLine( const Point2f& p1, const Point2f& p2, float lineWidth = 1.0f );
void DrawTriangle(const Point2f& p1, const Point2f& p2, const Point2f& p3, float lineWidth = 1);
void FillTriangle(const Point2f& p1, const Point2f& p2, const Point2f& p3);
void DrawRect(float left, float bottom, float width, float height, float lineWidth = 1.0f);
void DrawRect(const Point2f& bottomLeft, float width, float height, float lineWidth = 1.0f);
void DrawRect(const Rectf& rect, float lineWidth = 1.0f);
void FillRect(float left, float bottom, float width, float height);
void FillRect(const Point2f& bottomLeft, float width, float height);
void FillRect(const Rectf& rect);
void DrawEllipse(float centerX, float centerY, float radX, float radY, float lineWidth = 1.0f);
void DrawEllipse(const Point2f& center, float radX, float radY, float lineWidth = 1.0f);
void DrawEllipse(const Ellipsef& ellipse , float lineWidth = 1.0f );
void FillEllipse( float centerX, float centerY, float radX, float radY );
void FillEllipse(const Ellipsef& ellipse );
void FillEllipse(const Point2f& center, float radX, float radY);
// Draws an arc. The angle parameters are in radians, not in degrees.
void DrawArc(float centerX, float centerY, float radX, float radY, float fromAngle, float tillAngle, float lineWidth = 1.0f);
// Draws an arc. The angle parameters are in radians, not in degrees.
void DrawArc(const Point2f& center, float radX, float radY, float fromAngle, float tillAngle, float lineWidth = 1.0f);
// Fills an arc. The angle parameters are in radians, not in degrees.
void FillArc(float centerX, float centerY, float radX, float radY, float fromAngle, float tillAngle);
// Fills an arc. The angle parameters are in radians, not in degrees.
void FillArc(const Point2f& center, float radX, float radY, float fromAngle, float tillAngle);
void DrawPolygon( const std::vector<Point2f>& vertices, bool closed = true, float lineWidth = 1.0f );
void DrawPolygon( const Point2f* pVertices, size_t nrVertices, bool closed = true, float lineWidth = 1.0f );
void FillPolygon( const std::vector<Point2f>& vertices);
void FillPolygon( const Point2f* pVertices, size_t nrVertices);
#pragma endregion OpenGLDrawFunctionality
#pragma region CollisionFunctionality
struct HitInfo
{
float lambda;
Point2f intersectPoint;
Vector2f normal;
};
float GetDistance(float x1, float y1, float x2, float y2);
float GetDistance(const Point2f& p1, const Point2f& p2);
bool IsPointInRect(const Point2f& p, const Rectf& r);
bool IsPointInCircle(const Point2f& p, const Circlef& c);
bool IsPointInPolygon( const Point2f& p, const std::vector<Point2f>& vertices );
bool IsPointInPolygon( const Point2f& p, const Point2f* vertices, size_t nrVertices );
bool IsOverlapping( const Point2f& a, const Point2f& b, const Circlef& c );
bool IsOverlapping( const Point2f& a, const Point2f& b, const Rectf& r );
bool IsOverlapping(const Rectf & r1, const Rectf & r2);
bool IsOverlapping( const Rectf& r, const Circlef& c );
bool IsOverlapping( const Circlef& c1, const Circlef& c2 );
bool IsOverlapping( const std::vector<Point2f>& vertices, const Circlef& c );
bool IsOverlapping( const Point2f* vertices, size_t nrVertices, const Circlef& c );
bool Raycast( const Point2f* vertices, const size_t nrVertices, const Point2f& rayP1, const Point2f& rayP2, HitInfo& hitInfo );
bool Raycast( const std::vector<Point2f>& vertices, const Point2f& rayP1, const Point2f& rayP2, HitInfo& hitInfo );
bool IntersectLineSegments(const Point2f& p1, const Point2f& p2, const Point2f& q1, const Point2f& q2, float& outLambda1, float& outLambda2, float epsilon = 1e-6);
float DistPointLineSegment(const Point2f& p, const Point2f& a, const Point2f& b);
bool IsPointOnLineSegment(const Point2f& p, const Point2f& a, const Point2f& b);
bool IntersectRectLine(const Rectf& r, const Point2f& p1, const Point2f& p2, float& intersectMin, float& intersectMax);
#pragma endregion CollisionFunctionality
}