#include "Object.h"

Object::Object(Texture sprite, glm::vec2 pos, glm::vec2 size, int blockType)
	:Sprite(sprite),Position(pos),Size(size), blockType(blockType)
{
	this->spriteUVs = this->spriteSheet->getUVs(this->blockType + 10);
	//if (this->blockType) {
		this->objectBody.min = c2V(this->Position.x, this->Position.y);
		this->objectBody.max = c2V(this->Position.x + this->Size.x, this->Position.y + this->Size.y);
	//}
		GLfloat newVertices[] = {
			// Pos      // Tex
			0.0f*this->Size.x + this->Position.x, 1.0f*this->Size.y + this->Position.y,  this->spriteUVs.x, this->spriteUVs.y,
			1.0f*this->Size.x + this->Position.x, 0.0f*this->Size.y + this->Position.y,  this->spriteUVs.z, this->spriteUVs.w,
			0.0f*this->Size.x + this->Position.x, 0.0f*this->Size.y + this->Position.y,  this->spriteUVs.x, this->spriteUVs.w,
			1.0f*this->Size.x + this->Position.x, 1.0f*this->Size.y + this->Position.y,  this->spriteUVs.z, this->spriteUVs.y
		};
		for (int i = 0; i < 16; i++) {
		this->vertices[i] = newVertices[i];
		}


		// Configure VAO/VBO
		unsigned int indices[] = {
			0, 1, 2,
			0, 1, 3
		};

		glGenVertexArrays(1, &this->quadVAO);
		glGenBuffers(1, &this->VBO);
		glGenBuffers(1, &this->EBO);

		glBindBuffer(GL_ARRAY_BUFFER, this->VBO);
		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->EBO);
		glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);

		glBindVertexArray(this->quadVAO);
		glEnableVertexAttribArray(0);
		glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 4 * sizeof(GLfloat), (GLvoid*)0);
		glBindBuffer(GL_ARRAY_BUFFER, 0);
		glBindVertexArray(0);
		glActiveTexture(GL_TEXTURE0);
		glBindBuffer(GL_ARRAY_BUFFER, this->VBO);
		glBufferData(GL_ARRAY_BUFFER, sizeof(this->vertices), this->vertices, GL_STATIC_DRAW);
}

void Object::drawObject(SpriteRenderer& renderer) {
	//renderer.DrawSprite(this->Sprite, this->Position, this->spriteUVs, this->vertices, this->Size, this->Rotation);
	this->Sprite.bind();
	glBindVertexArray(this->quadVAO);
	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->EBO);
	glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
}