Hello! I make a game. Entity is not drawn as intended.
It should be : 
How come :
I understand that the problem is somewhere in glTranslatef. What do you think?
void MasterRenderer::renderScene() { prepareRenderer(); glTranslatef(-tanks.at(0).getX() + 650.0f, -tanks.at(0).getY() + 300.0f, 0.0f); //screen - 1300 x 600 renderEntities(); renderTanks(); renderBullets(); glutSwapBuffers(); glTranslatef(tanks.at(0).getX() - 650.0f, tanks.at(0).getY() - 300.0f, 0.0f); } void MasterRenderer::renderEntities() { std::pair<std::multimap<int, Entity>::iterator, std::multimap<int, Entity>::iterator> range; for(int i = 0; i < 5; i++) { range = entities.equal_range(i); glBindTexture(GL_TEXTURE_2D, textures.at(i).getTexture()); for (std::multimap<int, Entity>::iterator it = range.first; it != range.second; ++it) { glTranslatef((*it).second.getX(), (*it).second.getY(), 0.0f); glRotatef((*it).second.getAngle(), 0.0, 0.0, 1.0); glBegin(GL_QUADS); glTexCoord2f(0.0f, 0.0f); glVertex2f((float)(*it).second.getWidth() / -2.0f, (float)(*it).second.getLength() / -2.0f); glTexCoord2f(1.0f, 0.0f); glVertex2f((float)(*it).second.getWidth() / 2.0f, (float)(*it).second.getLength() / -2.0f); glTexCoord2f(1.0f, 1.0f); glVertex2f((float)(*it).second.getWidth() / 2.0f, (float)(*it).second.getLength() / 2.0f); glTexCoord2f(0.0f, 1.0f); glVertex2f((float)(*it).second.getWidth() / -2.0f, (float)(*it).second.getLength() / 2.0f); glEnd(); glRotatef(-(*it).second.getAngle(), 0.0, 0.0, 1.0); glTranslatef(-(*it).second.getX(), -(*it).second.getY(), 0.0f); } glBindTexture(GL_TEXTURE_2D, 0); } } void MasterRenderer::renderTanks() { glBindTexture(GL_TEXTURE_2D, textures.at(0).getTexture()); for(Tank tank : tanks) { // танк glTranslatef(tank.getX(), tank.getY(), 0.0f); glRotatef(-tank.getAngle(), 0.0, 0.0, 1.0); glBegin(GL_QUADS); glTexCoord2f(0.0f, 0.0f); glVertex2f(tank.getWidth() / -2.0, tank.getLength() / -2.0); glTexCoord2f(1.0f, 0.0f); glVertex2f(tank.getWidth() / 2.0, tank.getLength() / -2.0); glTexCoord2f(1.0f, 1.0f); glVertex2f(tank.getWidth() / 2.0, tank.getLength() / 2.0); glTexCoord2f(0.0f, 1.0f); glVertex2f(tank.getWidth() / -2.0, tank.getLength() / 2.0); glEnd(); glRotatef(tank.getAngle(), 0.0, 0.0, 1.0); glTranslatef(-tank.getX(), -tank.getY(), 0.0f); } // Башня glBindTexture(GL_TEXTURE_2D, textures.at(1).getTexture()); for(Tank tank : tanks) { glTranslatef(tank.getX(), tank.getY(), 0.0f); glRotatef(-tank.getTurretAngle(), 0.0f, 0.0f, 1.0f); glBegin(GL_QUADS); glTexCoord2f(0.0f, 0.0f); glVertex2f(tank.getTurretWidth() / -2.0f, tank.getTurretLength() / -2.0f + tank.getTurretOffset()); glTexCoord2f(1.0f, 0.0f); glVertex2f(tank.getTurretWidth() / 2.0f, tank.getTurretLength() / -2.0f + tank.getTurretOffset()); glTexCoord2f(1.0f, 1.0f); glVertex2f(tank.getTurretWidth() / 2.0f, tank.getTurretLength() / 2.0f + tank.getTurretOffset()); glTexCoord2f(0.0f, 1.0f); glVertex2f(tank.getTurretWidth() / -2.0f, tank.getTurretLength() / 2.0f + tank.getTurretOffset()); glEnd(); glRotatef(tank.getTurretAngle(), 0.0f, 0.0f, 1.0f); glTranslatef(-tank.getX(), -tank.getY(), 0.0f); } glBindTexture(GL_TEXTURE_2D, 0); } void MasterRenderer::renderBullets() { glBindTexture(GL_TEXTURE_2D, textures.at(2).getTexture()); for(int i = 0; i < bullets.size(); i++) { glTranslatef(bullets.at(i).getX(), bullets.at(i).getY(), 0); glRotatef(-bullets.at(i).getAngle(), 0.0f, 0.0f, 1.0f); glBegin(GL_QUADS); glTexCoord2f(0.0f, 0.0f); glVertex2f(bullets.at(i).width / -2.0f, bullets.at(i).length / -2.0f); glTexCoord2f(1.0f, 0.0f); glVertex2f(bullets.at(i).width / 2.0f, bullets.at(i).length / -2.0f); glTexCoord2f(1.0f, 1.0f); glVertex2f(bullets.at(i).width / 2.0f, bullets.at(i).length / 2.0f); glTexCoord2f(0.0f, 1.0f); glVertex2f(bullets.at(i).width / -2.0f, bullets.at(i).length / 2.0f); glEnd(); glRotatef(bullets.at(i).getAngle(), 0.0f, 0.0f, 1.0f); glTranslatef(-bullets.at(i).getX(), -bullets.at(i).getY(), 0); bullets.at(i).move(); bullets.at(i).setLife(bullets.at(i).getLife() + 0.01f); if(bullets.at(i).getLife() >= 2.0f) bullets.erase(bullets.begin() + i); std::vector<Bullet>(bullets).swap(bullets); } glBindTexture(GL_TEXTURE_2D, 0); } void MasterRenderer::prepareRenderer() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glOrtho(0.0f, 1300.0f, 600.0f, 0.0f, 0.0f, 1.0f); glMatrixMode(GL_MODELVIEW); glEnable(GL_TEXTURE_2D); glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); } Help me please.
