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我正在学习如何使用OpenGL,并开始围绕浮油2D游戏库建立一些实验,但我遇到了一些问题。Java:绘制线条光滑的LWJGL OpenGL
我想绘制简单的线条,将它们存储在一个数组中,然后迭代该数组来渲染每一行。这是主类:
ArrayList<Bloco> listaBlocos = new ArrayList<Bloco>();
ArrayList<Linha> listaLinhas = new ArrayList<Linha>();
boolean random = false;
@Override
public void init(GameContainer gc) throws SlickException {
listaBlocos = new ArrayList<Bloco>();
listaLinhas = new ArrayList<Linha>();
}
@Override
public void update(GameContainer gc, int delta) throws SlickException {
Input input = gc.getInput();
if (input.isMousePressed(0))
listaBlocos.add(new Bloco(input.getMouseX() - 5, input.getMouseY() - 5, 10, new Color(0, 255, 0)));
if (input.isMousePressed(1))
listaBlocos.add(new Bloco(input.getMouseX() - 5, input.getMouseY() - 5, 10, new Color(255, 0, 0)));
if (input.isKeyPressed(Input.KEY_A))
if (random == false)
random = true;
else
random = false;
if (input.isKeyPressed(Input.KEY_S))
listaLinhas.add(new Linha(input.getMouseX(), input.getMouseY(), 100, 100));
if (input.isKeyDown(Input.KEY_D))
listaLinhas.get(0).drawLine();
if (!listaBlocos.isEmpty() && random)
for (Bloco b : listaBlocos)
b.moveRandom(delta);
}
public void render(GameContainer gc, Graphics g) throws SlickException {
for (Linha l : listaLinhas)
l.drawLine();
for (Bloco b : listaBlocos)
b.draw(g);
}
,这是Linha级(其延伸线):
public class Linha extends Line {
public Linha(float x1, float y1, float x2, float y2) {
super(x1, y1, x2, y2);
}
public void drawLine() {
GL11.glColor3f(1.0f, 1.0f, 1.0f);
GL11.glBegin(GL11.GL_LINES);
GL11.glLineWidth(5.0f);
GL11.glVertex2f(getX1(), getY1());
GL11.glVertex2f(getX2(), getY2());
GL11.glEnd();
}
}
这只是用于测试,如果有一个更好的方式来渲染一堆线请告诉我。问题在于屏幕上的线条闪烁,它们并不总是全彩。我记录了这个问题,所以你可以看到发生了什么http://www.youtube.com/watch?v=ymO00yb5NVE