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  (LWJGL)Switching Textures(Sort of animation)  (Read 285 times)
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Offline AppleSauce
« Posted 2014-05-26 02:01:49 »

I'm trying to make some kind of a basic animation with lwjl without the slick.jar. I want the texture to change its' appearance whenever a certain Boolean is true, and change back when it's false.

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if (change == false)  {
            //PLAYER
            tex1.bind();
            tex2.release();
            glBegin(GL_QUADS);

            glTexCoord2f(0, 0);
            glVertex2i(p.getx(), p.gety()); // Upper-left
            glTexCoord2f(1, 0);
            glVertex2i(p.getx() + 32, p.gety()); // Upper-right
            glTexCoord2f(1, 1);
            glVertex2i(p.getx() + 32, p.gety() + 32); // Bottom-right
            glTexCoord2f(0, 1);
            glVertex2i(p.getx(), p.gety() + 32); // Bottom-left

            glEnd();
            }



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if (change == true)  {
            //PLAYER
            tex2.bind();
            tex1.release();
            glBegin(GL_QUADS);

            glTexCoord2f(0, 0);
            glVertex2i(p.getx(), p.gety()); // Upper-left
            glTexCoord2f(1, 0);
            glVertex2i(p.getx() + 32, p.gety()); // Upper-right
            glTexCoord2f(1, 1);
            glVertex2i(p.getx() + 32, p.gety() + 32); // Bottom-right
            glTexCoord2f(0, 1);
            glVertex2i(p.getx(), p.gety() + 32); // Bottom-left

            glEnd();
            }



I've tried switching them around, and the Boolean does work properly.
Offline SHC
« Reply #1 - Posted 2014-05-26 04:44:50 »

You are releasing the texture, that means you are deleting it. You can simplify it like

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if (change)
    tex1.bind();
else
    tex2.bind();

glBegin(GL_QUADS);
{
    glTexCoord2f(0, 0);
    glVertex2i(p.getx(), p.gety()); // Upper-left
    glTexCoord2f(1, 0);
    glVertex2i(p.getx() + 32, p.gety()); // Upper-right
    glTexCoord2f(1, 1);
    glVertex2i(p.getx() + 32, p.gety() + 32); // Bottom-right
    glTexCoord2f(0, 1);
    glVertex2i(p.getx(), p.gety() + 32); // Bottom-left
}
glEnd();

Offline AppleSauce
« Reply #2 - Posted 2014-05-26 06:09:17 »

You are releasing the texture, that means you are deleting it. You can simplify it like

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if (change)
    tex1.bind();
else
    tex2.bind();

glBegin(GL_QUADS);
{
    glTexCoord2f(0, 0);
    glVertex2i(p.getx(), p.gety()); // Upper-left
    glTexCoord2f(1, 0);
    glVertex2i(p.getx() + 32, p.gety()); // Upper-right
    glTexCoord2f(1, 1);
    glVertex2i(p.getx() + 32, p.gety() + 32); // Bottom-right
    glTexCoord2f(0, 1);
    glVertex2i(p.getx(), p.gety() + 32); // Bottom-left
}
glEnd();


Thanks so much! You're very helpful. I realized due to my lack of organization, I had also drawn the image already.
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