axmol/cocos/2d/CCDrawingPrimitives.h

/****************************************************************************
Copyright (c) 2008-2010 Ricardo Quesada
Copyright (c) 2010-2013 cocos2d-x.org
Copyright (c) 2011      Zynga Inc.
Copyright (c) 2013-2014 Chukong Technologies Inc.

http://www.cocos2d-x.org

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/*
 *
 * IMPORTANT       IMPORTANT        IMPORTANT        IMPORTANT
 *
 *
 * LEGACY FUNCTIONS
 *
 * USE DrawNode instead
 *
 */


#ifndef __CCDRAWING_PRIMITIVES__
#define __CCDRAWING_PRIMITIVES__
    

#include "base/ccTypes.h"
#include "base/ccMacros.h"
#include "math/CCMath.h"

/**
 @file
 Drawing OpenGL ES primitives.
 - drawPoint, drawPoints
 - drawLine
 - drawRect, drawSolidRect
 - drawPoly, drawSolidPoly
 - drawCircle
 - drawQuadBezier
 - drawCubicBezier
 - drawCatmullRom
 - drawCardinalSpline
 
 You can change the color, point size, width by calling:
 - drawColor4B(), drawColor4F()
 - ccPointSize()
 - glLineWidth()
 
 @warning These functions draws the Line, Vec2, Polygon, immediately. They aren't batched. If you are going to make a game that depends on these primitives, I suggest creating a batch. Instead you should use DrawNode
 
 */

NS_CC_BEGIN

/**
 * @addtogroup global
 * @{
 */

class PointArray;

namespace DrawPrimitives
{
    /** Initializes the drawing primitives */
    void init();

    /** Frees allocated resources by the drawing primitives */
    void free();

    /** draws a point given x and y coordinate measured in points */
    void drawPoint( const Vec2& point );

    /** draws an array of points.
     @since v0.7.2
     */
    void drawPoints( const Vec2 *points, unsigned int numberOfPoints );

    /** draws a line given the origin and destination point measured in points */
    void drawLine( const Vec2& origin, const Vec2& destination );

    /** draws a rectangle given the origin and destination point measured in points. */
    void drawRect( Vec2 origin, Vec2 destination );

    /** draws a solid rectangle given the origin and destination point measured in points.
        @since 1.1
     */
    void drawSolidRect( Vec2 origin, Vec2 destination, Color4F color );

    /** draws a polygon given a pointer to point coordinates and the number of vertices measured in points.
    The polygon can be closed or open
    */
    void drawPoly( const Vec2 *vertices, unsigned int numOfVertices, bool closePolygon );

    /** draws a solid polygon given a pointer to CGPoint coordinates, the number of vertices measured in points, and a color.
     */
    void drawSolidPoly( const Vec2 *poli, unsigned int numberOfPoints, Color4F color );

    /** draws a circle given the center, radius and number of segments. */
    void drawCircle( const Vec2& center, float radius, float angle, unsigned int segments, bool drawLineToCenter, float scaleX, float scaleY);
    void drawCircle( const Vec2& center, float radius, float angle, unsigned int segments, bool drawLineToCenter);

    /** draws a solid circle given the center, radius and number of segments. */
    void drawSolidCircle( const Vec2& center, float radius, float angle, unsigned int segments, float scaleX, float scaleY);
    void drawSolidCircle( const Vec2& center, float radius, float angle, unsigned int segments);

    /** draws a quad bezier path
     @warning This function could be pretty slow. Use it only for debugging purposes.
     @since v0.8
     */
    void drawQuadBezier(const Vec2& origin, const Vec2& control, const Vec2& destination, unsigned int segments);

    /** draws a cubic bezier path
     @warning This function could be pretty slow. Use it only for debugging purposes.
     @since v0.8
     */
    void drawCubicBezier(const Vec2& origin, const Vec2& control1, const Vec2& control2, const Vec2& destination, unsigned int segments);

    /** draws a Catmull Rom path.
     @warning This function could be pretty slow. Use it only for debugging purposes.
     @since v2.0
     */
    void drawCatmullRom( PointArray *arrayOfControlPoints, unsigned int segments );

    /** draws a Cardinal Spline path.
     @warning This function could be pretty slow. Use it only for debugging purposes.
     @since v2.0
     */
    void drawCardinalSpline( PointArray *config, float tension,  unsigned int segments );

    /** set the drawing color with 4 unsigned bytes
     @since v2.0
     */
    void setDrawColor4B( GLubyte r, GLubyte g, GLubyte b, GLubyte a );

    /** set the drawing color with 4 floats
     @since v2.0
     */
    void setDrawColor4F( GLfloat r, GLfloat g, GLfloat b, GLfloat a );

    /** set the point size in points. Default 1.
     @since v2.0
     */
    void setPointSize( GLfloat pointSize );

};

// end of global group
/// @}

NS_CC_END

#endif // __CCDRAWING_PRIMITIVES__