Light.h

#pragma once
#ifndef Light_h
#define Light_h

#include<GL/glew.h>

GLfloat vertices_light[] = {
	-0.5f,-0.5f,-0.5f,
	0.5f,-0.5f,-0.5f,
	0.5f,0.5f,-0.5f,
	0.5f,0.5f,-0.5f,
	-0.5f,0.5f,-0.5f,
	-0.5f,-0.5f,-0.5f,

	-0.5f,-0.5f,0.5f,
	0.5f,-0.5f,0.5f,
	0.5f,0.5f,0.5f,
	0.5f,0.5f,0.5f,
	-0.5f,0.5f,0.5f,
	-0.5f,-0.5f,0.5f,

	-0.5f,0.5f,0.5f,
	-0.5f,0.5f,-0.5f,
	-0.5f,-0.5f,-0.5f,
	-0.5f,-0.5f,-0.5f,
	-0.5f,-0.5f,0.5f,
	-0.5f,0.5f,0.5f,

	0.5f,0.5f,0.5f,
	0.5f,0.5f,-0.5f,
	0.5f,-0.5f,-0.5f,
	0.5f,-0.5f,-0.5f,
	0.5f,-0.5f,0.5f,
	0.5f,0.5f,0.5f,

	-0.5f,-0.5f,-0.5f,
	0.5f,-0.5f,-0.5f,
	0.5f,-0.5f,0.5f,
	0.5f,-0.5f,0.5f,
	-0.5f,-0.5f,0.5f,
	-0.5f,-0.5f,-0.5f,
	-0.5f,0.5f,-0.5f,
	0.5f,0.5f,-0.5f,
	0.5f,0.5f,0.5f,
	0.5f,0.5f,0.5f,
	-0.5f,0.5f,0.5f,
	-0.5f,0.5f,-0.5f
};

class Light {
public:
	Light() {
		this->update();
	}
	void Draw(Shader &shader) {
		glBindVertexArray(this->VAO);
		glDrawArrays(GL_TRIANGLES, 0, 36);
		glBindVertexArray(0);
	}
private:
	GLuint VAO, VBO;
	void update() {
		glGenVertexArrays(1, &this->VAO);
		glGenBuffers(1, &this->VBO);
		// connect the VAO and VBO
		glBindVertexArray(this->VAO);
		glBindBuffer(GL_ARRAY_BUFFER, this->VBO);
		// transfer the data
		glBufferData(GL_ARRAY_BUFFER, sizeof(vertices_light), vertices_light, GL_STATIC_DRAW);
		// set the attribute
		glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), (GLvoid*)0);
		glEnableVertexAttribArray(0);
		glBindBuffer(GL_ARRAY_BUFFER, 0);
		glBindVertexArray(0);
	}
};

#endif // !Light_h