如何从构造的 VertexArray 中绘制我选择的图元?在下面的示例中,我将两个顶点添加到 'vertices' 数组中,并尝试使用 'window.draw(vertices, 2, sf::Lines)' 绘制它,但它给了我一个错误。我知道我可以使用 'sf::Vertex foo[] = {..}' 创建线对象,但我希望能够继续将顶点附加到数组而不是一次全部初始化。
#include <SFML/Window.hpp>
#include <SFML/OpenGL.hpp>
#include <SFML/Graphics.hpp>
#include <iostream>
int main()
{
// Create the main window
sf::RenderWindow window(sf::VideoMode(640, 480), "SFML");
sf::Clock clock;
sf::VertexArray vertices;
sf::Vertex vertex;
vertex.position = sf::Vector2f(0, 0);
vertex.color = sf::Color(100, 0, 200);
vertices.append(vertex);
vertex.position = sf::Vector2f(100, 100);
vertex.color = sf::Color(100, 0, 200);
vertices.append(vertex);
// Start the game loop
bool running = true;
while (running)
{
// Process events
sf::Event event;
while (window.pollEvent(event))
{
// Close window: exit
if (event.type == sf::Event::Closed)
running = false;
}
window.clear(sf::Color::Black);
window.draw(vertices,2 ,sf::Lines);
window.display();
}
return 0;
}