grafika_komputerowa/grk/project/Sun.h

#include "glm.hpp"
#include "ext.hpp"
#include "./Spaceship.h"
#include "./GameObject.h"

#pragma once
class Sun : public GameObject
{
public:
	glm::vec3 sunPos;
	glm::vec3 sunDir;
	glm::vec3 sunColor;
	double scale;
	GLuint program;
	Core::RenderContext sphereContext;
	glm::mat4 positionMatrix;
	GLuint textureID;

	Sun(GLuint program, Core::RenderContext sphereContext, glm::vec3 pos, glm::vec3 dir, GLuint textureID, glm::vec3 color, double scale) {
		this->program = program;
		this->sphereContext = sphereContext;
		this->sunPos = pos;
		this->sunDir = dir;
		this->sunColor = color;
		this->scale = scale;
		this->textureID = textureID;
	}

	Sun(){}

	void draw() {
		glUseProgram(program);
		glActiveTexture(GL_TEXTURE0);
		glBindTexture(GL_TEXTURE_2D, textureID);
		glUniform1i(glGetUniformLocation(program, "sunTexture"), 0);
		glm::mat4 viewProjectionMatrix = Core::createPerspectiveMatrix() * Spaceship::getInstance()->createCameraMatrix();
		positionMatrix = glm::translate(sunPos);
		glm::mat4 transformation = viewProjectionMatrix * positionMatrix * glm::scale(glm::vec3(scale));
		glUniformMatrix4fv(glGetUniformLocation(program, "transformation"), 1, GL_FALSE, (float*)&transformation);
		glUniform3f(glGetUniformLocation(program, "color"), sunColor.x / 2, sunColor.y / 2, sunColor.z / 2);
		glUniform1f(glGetUniformLocation(program, "exposition"), 1.f);
		Core::DrawContext(sphereContext);
	}

	glm::vec3 getPosition() {
		return sunPos;
	}

	glm::vec3 getColor() {
		return sunColor;
	}

	glm::mat4 getPositionMatrix() override {
		return positionMatrix;
	}
};