gCircle.h

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/*
 * Copyright (C) 2016 Nitra Games Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
/*
 * gCircle.h
 *
 *  Created on: 9 Tem 2021
 *      Author: YavuzBilginoglu
 */
 
#ifndef GRAPHICS_PRIMITIVES_GCIRCLE_H_
#define GRAPHICS_PRIMITIVES_GCIRCLE_H_
 
#include "gMesh.h"
 
/*
 * Creates objects with the shape of a circle.
 */
class gCircle: public gMesh {
public:
 
    /*
     * Creates objects with the shape of a circle.
     * Calculating coordinate information.
     * @param xCenter x-coordinate of the circle's center
     * @param yCenter y-coordinate of the circle's center
     * @param radius radius of the circle
     * @param isFilled signifies whether the circle is full or empty
     * @param numberOfsides  indicates the detail value of the circle.
     */
    gCircle();
    gCircle(float xCenter, float yCenter, float radius, bool isFilled, float numberOfSides = 64.0f);
    virtual ~gCircle();
 
   /*
    * Provides draw using mesh class.
    */
    void draw();
 
    void setPoints(float xCenter, float yCenter, float radius, bool isFilled,  float numberOfSides = 64.0f);
 
    /*
     * Determines whether the projection is two-dimensional.
     * The coordinates of the circle vertices created are taken.
     * Provides draw using mesh class.
     *
     * @param xCenter x-coordinate of the circle's center
     * @param yCenter y-coordinate of the circle's center
     * @param radius radius of the circle
     * @param isFilled signifies whether the circle is full or empty
     * @param numberOfsides  indicates the detail value of the circle.
     */
    void draw(float xCenter, float yCenter, float radius, bool isFilled, float numberOfSides = 64.0f);
 
private:
 
    /*
     * The circle is formed by triangles.
     * These triangles vertices form  circle.
     * Calculating coordinate information.
     * The more side are given, the sharper the circle will be, as the number of triangles will increase.
     * But it does not provide any visible change after 64 sides given as default.
     *
     * @param xCenter x-coordinate of the circle's center
     * @param yCenter y-coordinate of the circle's center
     * @param radius radius of the circle
     * @param isFilled signifies whether the circle is full or empty
     * @param numberOfsides  indicates the detail value of the circle.
     */
    void setCirclePoints(float xCenter, float yCenter, float radius, bool isFilled, float numberOfSides = 64.0f);
};
 
#endif /* GRAPHICS_PRIMITIVES_GCIRCLE_H_ */