spritesheet binding

[arminb]

hello people. i have a problem with binding sprites.

the sprite atlas size i want to load is 64x32 pixels and contains 2 sprites. i load it into a spritesheet with:

sprite = new SpriteSheet("res/image3.png", 32, 32);

in my rendering procedure i try to print the second sprite onto a quad by doing this:

sprite.getSprite(1, 0).bind();
		
GL11.glBegin(GL11.GL_QUADS);
	GL11.glTexCoord2f(0,0);
	GL11.glVertex2f(0,0);
	GL11.glTexCoord2f(1f,0);
	GL11.glVertex2f(32,0);
	GL11.glTexCoord2f(1f,1);
	GL11.glVertex2f(32,32);
	GL11.glTexCoord2f(0,1);
	GL11.glVertex2f(0,32);
GL11.glEnd();

instead of showing only the second sprite it shows me both (scaled to 32pixels).


i don't understand why it is not simply binding only the second sprite. thanks for your help.

[kappa]

your resizing the quad, what you need to do is set the correct texture values instead (i.e. amend glTexCoord2f values and not glVertex2f).

[arminb]

i tried this too. with that i was just able to print the FIRST sprite by doing:

GL11.glBegin(GL11.GL_QUADS);
	GL11.glTexCoord2f(0,0);
	GL11.glVertex2f(0,0);
	GL11.glTexCoord2f(0.5f,0); //changed 1f to 0.5f
	GL11.glVertex2f(32,0);
	GL11.glTexCoord2f(0.5f,1); //changed 1f to 0.5f
	GL11.glVertex2f(32,32);
	GL11.glTexCoord2f(0,1);
	GL11.glVertex2f(0,32);
GL11.glEnd();

i don't know how to print the second sprite by changing glTexCoord2f.

[Fool Running]

I assume SpriteSheet is from Slick.
From looking at the documentation (http://slick.cokeandcode.com/javadoc/org/newdawn/slick/SpriteSheet.html), it looks like you need to do the following:

sprite.startUse();
sprite.renderInUse(x, y, 1, 0);
sprite.endUse();