rshapes.c File Reference

#include "raylib.h"
#include "config.h"
#include "rlgl.h"
#include <math.h>
#include <float.h>

Include dependency graph for rshapes.c:

Go to the source code of this file.

Macros
#define	SMOOTH_CIRCLE_ERROR_RATE   0.5f
	rshapes - Basic functions to draw 2d shapes and check collisions More...
#define	BEZIER_LINE_DIVISIONS   24

Functions
void	SetShapesTexture (Texture2D texture, Rectangle source)
void	DrawPixel (int posX, int posY, Color color)
void	DrawPixelV (Vector2 position, Color color)
void	DrawLine (int startPosX, int startPosY, int endPosX, int endPosY, Color color)
void	DrawLineV (Vector2 startPos, Vector2 endPos, Color color)
void	DrawLineEx (Vector2 startPos, Vector2 endPos, float thick, Color color)
void	DrawLineBezier (Vector2 startPos, Vector2 endPos, float thick, Color color)
void	DrawLineBezierQuad (Vector2 startPos, Vector2 endPos, Vector2 controlPos, float thick, Color color)
void	DrawLineBezierCubic (Vector2 startPos, Vector2 endPos, Vector2 startControlPos, Vector2 endControlPos, float thick, Color color)
void	DrawLineStrip (Vector2 *points, int pointCount, Color color)
void	DrawCircle (int centerX, int centerY, float radius, Color color)
void	DrawCircleSector (Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color)
void	DrawCircleSectorLines (Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color)
void	DrawCircleGradient (int centerX, int centerY, float radius, Color color1, Color color2)
void	DrawCircleV (Vector2 center, float radius, Color color)
void	DrawCircleLines (int centerX, int centerY, float radius, Color color)
void	DrawEllipse (int centerX, int centerY, float radiusH, float radiusV, Color color)
void	DrawEllipseLines (int centerX, int centerY, float radiusH, float radiusV, Color color)
void	DrawRing (Vector2 center, float innerRadius, float outerRadius, float startAngle, float endAngle, int segments, Color color)
void	DrawRingLines (Vector2 center, float innerRadius, float outerRadius, float startAngle, float endAngle, int segments, Color color)
void	DrawRectangle (int posX, int posY, int width, int height, Color color)
void	DrawRectangleV (Vector2 position, Vector2 size, Color color)
void	DrawRectangleRec (Rectangle rec, Color color)
void	DrawRectanglePro (Rectangle rec, Vector2 origin, float rotation, Color color)
void	DrawRectangleGradientV (int posX, int posY, int width, int height, Color color1, Color color2)
void	DrawRectangleGradientH (int posX, int posY, int width, int height, Color color1, Color color2)
void	DrawRectangleGradientEx (Rectangle rec, Color col1, Color col2, Color col3, Color col4)
void	DrawRectangleLines (int posX, int posY, int width, int height, Color color)
void	DrawRectangleLinesEx (Rectangle rec, float lineThick, Color color)
void	DrawRectangleRounded (Rectangle rec, float roundness, int segments, Color color)
void	DrawRectangleRoundedLines (Rectangle rec, float roundness, int segments, float lineThick, Color color)
void	DrawTriangle (Vector2 v1, Vector2 v2, Vector2 v3, Color color)
void	DrawTriangleLines (Vector2 v1, Vector2 v2, Vector2 v3, Color color)
void	DrawTriangleFan (Vector2 *points, int pointCount, Color color)
void	DrawTriangleStrip (Vector2 *points, int pointCount, Color color)
void	DrawPoly (Vector2 center, int sides, float radius, float rotation, Color color)
void	DrawPolyLines (Vector2 center, int sides, float radius, float rotation, Color color)
void	DrawPolyLinesEx (Vector2 center, int sides, float radius, float rotation, float lineThick, Color color)
bool	CheckCollisionPointRec (Vector2 point, Rectangle rec)
bool	CheckCollisionPointCircle (Vector2 point, Vector2 center, float radius)
bool	CheckCollisionPointTriangle (Vector2 point, Vector2 p1, Vector2 p2, Vector2 p3)
bool	CheckCollisionRecs (Rectangle rec1, Rectangle rec2)
bool	CheckCollisionCircles (Vector2 center1, float radius1, Vector2 center2, float radius2)
bool	CheckCollisionCircleRec (Vector2 center, float radius, Rectangle rec)
bool	CheckCollisionLines (Vector2 startPos1, Vector2 endPos1, Vector2 startPos2, Vector2 endPos2, Vector2 *collisionPoint)
bool	CheckCollisionPointLine (Vector2 point, Vector2 p1, Vector2 p2, int threshold)
Rectangle	GetCollisionRec (Rectangle rec1, Rectangle rec2)

Variables
Texture2D	texShapes = { 1, 1, 1, 1, 7 }
Rectangle	texShapesRec = { 0.0f, 0.0f, 1.0f, 1.0f }

Macro Definition Documentation

BEZIER_LINE_DIVISIONS

#define BEZIER_LINE_DIVISIONS   24

Definition at line 71 of file rshapes.c.

SMOOTH_CIRCLE_ERROR_RATE

#define SMOOTH_CIRCLE_ERROR_RATE   0.5f

rshapes - Basic functions to draw 2d shapes and check collisions

NOTES: Shapes can be draw using 3 types of primitives: LINES, TRIANGLES and QUADS. Some functions implement two drawing options: TRIANGLES and QUADS, by default TRIANGLES are used but QUADS implementation can be selected with SUPPORT_QUADS_DRAW_MODE define

Some functions define texture coordinates (rlTexCoord2f()) for the shapes and use a user-provided texture with SetShapesTexture(), the pourpouse of this implementation is allowing to reduce draw calls when combined with a texture-atlas.

By default, raylib sets the default texture and rectangle at InitWindow()[rcore] to one white character of default font [rtext], this way, raylib text and shapes can be draw with a single draw call and it also allows users to configure it the same way with their own fonts.

CONFIGURATION:

#define SUPPORT_MODULE_RSHAPES rshapes module is included in the build

#define SUPPORT_QUADS_DRAW_MODE Use QUADS instead of TRIANGLES for drawing when possible. Lines-based shapes still use LINES

LICENSE: zlib/libpng

Copyright (c) 2013-2022 Ramon Santamaria (@raysan5)

This software is provided "as-is", without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.

Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.

Definition at line 68 of file rshapes.c.

Function Documentation

CheckCollisionCircleRec()

bool CheckCollisionCircleRec	(	Vector2	center,
		float	radius,
		Rectangle	rec
	)

Definition at line 1664 of file rshapes.c.

CheckCollisionCircles()

bool CheckCollisionCircles	(	Vector2	center1,
		float	radius1,
		Vector2	center2,
		float	radius2
	)

Definition at line 1648 of file rshapes.c.

Here is the caller graph for this function:

CheckCollisionLines()

bool CheckCollisionLines	(	Vector2	startPos1,
		Vector2	endPos1,
		Vector2	startPos2,
		Vector2	endPos2,
		Vector2 *	collisionPoint
	)

Definition at line 1689 of file rshapes.c.

CheckCollisionPointCircle()

bool CheckCollisionPointCircle	(	Vector2	point,
		Vector2	center,
		float	radius
	)

Definition at line 1609 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

CheckCollisionPointLine()

bool CheckCollisionPointLine	(	Vector2	point,
		Vector2	p1,
		Vector2	p2,
		int	threshold
	)

Definition at line 1718 of file rshapes.c.

CheckCollisionPointRec()

bool CheckCollisionPointRec	(	Vector2	point,
		Rectangle	rec
	)

Definition at line 1599 of file rshapes.c.

Here is the caller graph for this function:

CheckCollisionPointTriangle()

bool CheckCollisionPointTriangle	(	Vector2	point,
		Vector2	p1,
		Vector2	p2,
		Vector2	p3
	)

Definition at line 1619 of file rshapes.c.

CheckCollisionRecs()

bool CheckCollisionRecs	(	Rectangle	rec1,
		Rectangle	rec2
	)

Definition at line 1637 of file rshapes.c.

Here is the caller graph for this function:

DrawCircle()

void DrawCircle	(	int	centerX,
		int	centerY,
		float	radius,
		Color	color
	)

Definition at line 256 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

DrawCircleGradient()

void DrawCircleGradient	(	int	centerX,
		int	centerY,
		float	radius,
		Color	color1,
		Color	color2
	)

Definition at line 417 of file rshapes.c.

Here is the call graph for this function:

DrawCircleLines()

void DrawCircleLines	(	int	centerX,
		int	centerY,
		float	radius,
		Color	color
	)

Definition at line 442 of file rshapes.c.

Here is the call graph for this function:

DrawCircleSector()

void DrawCircleSector	(	Vector2	center,
		float	radius,
		float	startAngle,
		float	endAngle,
		int	segments,
		Color	color
	)

Definition at line 262 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

DrawCircleSectorLines()

void DrawCircleSectorLines	(	Vector2	center,
		float	radius,
		float	startAngle,
		float	endAngle,
		int	segments,
		Color	color
	)

Definition at line 354 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

DrawCircleV()

void DrawCircleV	(	Vector2	center,
		float	radius,
		Color	color
	)

Definition at line 436 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

DrawEllipse()

void DrawEllipse	(	int	centerX,
		int	centerY,
		float	radiusH,
		float	radiusV,
		Color	color
	)

Definition at line 459 of file rshapes.c.

Here is the call graph for this function:

DrawEllipseLines()

void DrawEllipseLines	(	int	centerX,
		int	centerY,
		float	radiusH,
		float	radiusV,
		Color	color
	)

Definition at line 475 of file rshapes.c.

Here is the call graph for this function:

DrawLine()

void DrawLine	(	int	startPosX,
		int	startPosY,
		int	endPosX,
		int	endPosY,
		Color	color
	)

Definition at line 125 of file rshapes.c.

Here is the call graph for this function:

DrawLineBezier()

void DrawLineBezier	(	Vector2	startPos,
		Vector2	endPos,
		float	thick,
		Color	color
	)

Definition at line 166 of file rshapes.c.

Here is the call graph for this function:

DrawLineBezierCubic()

void DrawLineBezierCubic	(	Vector2	startPos,
		Vector2	endPos,
		Vector2	startControlPos,
		Vector2	endControlPos,
		float	thick,
		Color	color
	)

Definition at line 211 of file rshapes.c.

Here is the call graph for this function:

DrawLineBezierQuad()

void DrawLineBezierQuad	(	Vector2	startPos,
		Vector2	endPos,
		Vector2	controlPos,
		float	thick,
		Color	color
	)

Definition at line 185 of file rshapes.c.

Here is the call graph for this function:

DrawLineEx()

void DrawLineEx	(	Vector2	startPos,
		Vector2	endPos,
		float	thick,
		Color	color
	)

Definition at line 145 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

DrawLineStrip()

void DrawLineStrip	(	Vector2 *	points,
		int	pointCount,
		Color	color
	)

Definition at line 237 of file rshapes.c.

Here is the call graph for this function:

DrawLineV()

void DrawLineV	(	Vector2	startPos,
		Vector2	endPos,
		Color	color
	)

Definition at line 135 of file rshapes.c.

Here is the call graph for this function:

DrawPixel()

void DrawPixel	(	int	posX,
		int	posY,
		Color	color
	)

Definition at line 105 of file rshapes.c.

Here is the call graph for this function:

DrawPixelV()

void DrawPixelV	(	Vector2	position,
		Color	color
	)

Definition at line 115 of file rshapes.c.

Here is the call graph for this function:

DrawPoly()

void DrawPoly	(	Vector2	center,
		int	sides,
		float	radius,
		float	rotation,
		Color	color
	)

Definition at line 1452 of file rshapes.c.

Here is the call graph for this function:

DrawPolyLines()

void DrawPolyLines	(	Vector2	center,
		int	sides,
		float	radius,
		float	rotation,
		Color	color
	)

Definition at line 1508 of file rshapes.c.

Here is the call graph for this function:

DrawPolyLinesEx()

void DrawPolyLinesEx	(	Vector2	center,
		int	sides,
		float	radius,
		float	rotation,
		float	lineThick,
		Color	color
	)

Definition at line 1532 of file rshapes.c.

Here is the call graph for this function:

DrawRectangle()

void DrawRectangle	(	int	posX,
		int	posY,
		int	width,
		int	height,
		Color	color
	)

Definition at line 664 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

DrawRectangleGradientEx()

void DrawRectangleGradientEx	(	Rectangle	rec,
		Color	col1,
		Color	col2,
		Color	col3,
		Color	col4
	)

Definition at line 782 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

DrawRectangleGradientH()

void DrawRectangleGradientH	(	int	posX,
		int	posY,
		int	width,
		int	height,
		Color	color1,
		Color	color2
	)

Definition at line 775 of file rshapes.c.

Here is the call graph for this function:

DrawRectangleGradientV()

void DrawRectangleGradientV	(	int	posX,
		int	posY,
		int	width,
		int	height,
		Color	color1,
		Color	color2
	)

Definition at line 768 of file rshapes.c.

Here is the call graph for this function:

DrawRectangleLines()

void DrawRectangleLines	(	int	posX,
		int	posY,
		int	width,
		int	height,
		Color	color
	)

Definition at line 816 of file rshapes.c.

Here is the call graph for this function:

DrawRectangleLinesEx()

void DrawRectangleLinesEx	(	Rectangle	rec,
		float	lineThick,
		Color	color
	)

Definition at line 842 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

DrawRectanglePro()

void DrawRectanglePro	(	Rectangle	rec,
		Vector2	origin,
		float	rotation,
		Color	color
	)

Definition at line 683 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

DrawRectangleRec()

void DrawRectangleRec	(	Rectangle	rec,
		Color	color
	)

Definition at line 677 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

DrawRectangleRounded()

void DrawRectangleRounded	(	Rectangle	rec,
		float	roundness,
		int	segments,
		Color	color
	)

Definition at line 873 of file rshapes.c.

Here is the call graph for this function:

DrawRectangleRoundedLines()

void DrawRectangleRoundedLines	(	Rectangle	rec,
		float	roundness,
		int	segments,
		float	lineThick,
		Color	color
	)

Definition at line 1095 of file rshapes.c.

Here is the call graph for this function:

DrawRectangleV()

void DrawRectangleV	(	Vector2	position,
		Vector2	size,
		Color	color
	)

Definition at line 671 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

DrawRing()

void DrawRing	(	Vector2	center,
		float	innerRadius,
		float	outerRadius,
		float	startAngle,
		float	endAngle,
		int	segments,
		Color	color
	)

Definition at line 490 of file rshapes.c.

Here is the call graph for this function:

DrawRingLines()

void DrawRingLines	(	Vector2	center,
		float	innerRadius,
		float	outerRadius,
		float	startAngle,
		float	endAngle,
		int	segments,
		Color	color
	)

Definition at line 584 of file rshapes.c.

Here is the call graph for this function:

DrawTriangle()

void DrawTriangle	(	Vector2	v1,
		Vector2	v2,
		Vector2	v3,
		Color	color
	)

Definition at line 1334 of file rshapes.c.

Here is the call graph for this function:

DrawTriangleFan()

void DrawTriangleFan	(	Vector2 *	points,
		int	pointCount,
		Color	color
	)

Definition at line 1392 of file rshapes.c.

Here is the call graph for this function:

DrawTriangleLines()

void DrawTriangleLines	(	Vector2	v1,
		Vector2	v2,
		Vector2	v3,
		Color	color
	)

Definition at line 1372 of file rshapes.c.

Here is the call graph for this function:

DrawTriangleStrip()

void DrawTriangleStrip	(	Vector2 *	points,
		int	pointCount,
		Color	color
	)

Definition at line 1423 of file rshapes.c.

Here is the call graph for this function:

Here is the caller graph for this function:

GetCollisionRec()

Rectangle GetCollisionRec	(	Rectangle	rec1,
		Rectangle	rec2
	)

Definition at line 1738 of file rshapes.c.

Here is the call graph for this function:

SetShapesTexture()

void SetShapesTexture	(	Texture2D	texture,
		Rectangle	source
	)

Definition at line 98 of file rshapes.c.

Here is the caller graph for this function:

Variable Documentation

texShapes

Texture2D texShapes = { 1, 1, 1, 1, 7 }

Definition at line 83 of file rshapes.c.

texShapesRec

Rectangle texShapesRec = { 0.0f, 0.0f, 1.0f, 1.0f }

Definition at line 84 of file rshapes.c.