How to repair the spacing between blocks when I rotate them? - c++

Question

Hello I'm currently trying to rotate blocks that are within a square. But when I start to rotate them it starts to create weird spaces between blocks that I don't want. Could you help me to fix the problem of spaces beetween blocks? Here are some code and screenshots how does it look.
https://imgur.com/a/BLuO7FF
I have already checked if all angles and radiuses are calculated correctly and I don't see any problem there.
World.h
#pragma once
#include <SFML/Graphics.hpp>
class World
{
public:
World(sf::Vector2f Wpos);
float AngleToRadian(int angle);
void RotateWorld();
void draw(sf::RenderWindow &window);
sf::Texture tx;
sf::Sprite** Block;
sf::Vector2f Pos;
sf::Vector2i Size;
float** radius;
float** angle;
};
World.cpp
#include "World.h"
#include <SFML/Graphics.hpp>
#include <iostream>
#include <cmath>
#define PI 3.14159
World::World(sf::Vector2f Wpos)
{
Pos = Wpos;
Size = sf::Vector2i(10, 10);
Block = new sf::Sprite*[Size.y];
radius = new float*[Size.y];
angle = new float*[Size.y];
for (int i = 0; i < Size.y; i++)
{
Block[i] = new sf::Sprite[Size.x];
radius[i] = new float[Size.x];
angle[i] = new float[Size.x];
}
tx.loadFromFile("Img/Block.png");
sf::Vector2i off(Size.x * tx.getSize().x / 2, Size.y * tx.getSize().y / 2); //tx size is 32px x 32px
for (int y = 0; y < Size.y; y++)
{
for (int x = 0; x < Size.x; x++)
{
Block[y][x].setTexture(tx);
Block[y][x].setOrigin(tx.getSize().x / 2, tx.getSize().y / 2);
Block[y][x].setPosition(x*tx.getSize().x + Wpos.x - off.x + Block[y][x].getOrigin().x, y*tx.getSize().y + Wpos.y - off.y + Block[y][x].getOrigin().y);
radius[y][x] = sqrt(pow(Pos.x - Block[y][x].getPosition().x, 2) + pow(Pos.y - Block[y][x].getPosition().y, 2));
angle[y][x] = (atan2(Block[y][x].getPosition().y - Pos.y, Block[y][x].getPosition().x - Pos.x) * 180.0) / PI;
if ((atan2(Block[y][x].getPosition().y - Pos.y, Block[y][x].getPosition().x - Pos.x) * 180.0) / PI < 0)
{
angle[y][x] += 360;
}
//angle[y][x] = round(angle[y][x]);
/*radius[y][x] = round(radius[y][x]);*/
}
}
}
void World::RotateWorld()
{
float dx = 0, dy = 0;
if (sf::Keyboard::isKeyPressed(sf::Keyboard::E))
{
for (int y = 0; y < Size.y; y++)
{
for (int x = 0; x < Size.x; x++)
{
Block[y][x].rotate(1);
if (angle[y][x] >= 360)
{
angle[y][x] = 0;
}
angle[y][x]++;
dx = cos(AngleToRadian(angle[y][x])) * radius[y][x];
dy = sin(AngleToRadian(angle[y][x])) * radius[y][x];
Block[y][x].setPosition(Pos.x + dx, Pos.y + dy);
}
}
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Q))
{
for (int y = 0; y < Size.y; y++)
{
for (int x = 0; x < Size.x; x++)
{
Block[y][x].rotate(-1);
if (angle[y][x] >= 360)
{
angle[y][x] = 0;
}
angle[y][x]--;
dx = cos(AngleToRadian(angle[y][x])) * radius[y][x];
dy = sin(AngleToRadian(angle[y][x])) * radius[y][x];
Block[y][x].setPosition(Pos.x + dx, Pos.y + dy);
}
}
}
}
I expected it to rotate withouth any spaces between. I would be really thankfull if someone would help me.

Answer 1

I would try with setting the origin of the sf::Sprite using it's getGlobalBounds() method instead of the sf::Texture size getter.
The difference seems minor and something like that might be the case.
Block[y][x].setTexture(tx);
Block[y][x].setOrigin(Block[y][x].getGlobalBouds().width / 2, Block[y][x].getGlobalBouds().height / 2);
Block[y][x].setPosition(x*Block[y][x].getGlobalBouds().width + Wpos.x - off.x + Block[y][x].getOrigin().x, y*Block[y][x].getGlobalBouds().height + Wpos.y - off.y + Block[y][x].getOrigin().y);