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PO(Java and LWJGL) using glTranslatef when loading textures?
 

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  1. PO(Java and LWJGL) using glTranslatef when loading textures?
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    <p>I'm trying to make a 2D basic game; sort of like Terraria, to improve my openGL knowledge (using Java and LWJGL) mainly.</p> <p>At the moment, i'm drawing textures on quads and everything's working fine, however, I can't seem to get this window to scroll (From what I can gather, this should be done by glTranslate..</p> <p>Code:</p> <pre><code>private void init() { try { Display.setDisplayMode(new DisplayMode(window_width, window_height)); Display.setTitle(window_title); Display.setVSyncEnabled(true); Display.create(); } catch (LWJGLException e) { e.printStackTrace(); } translatex = 0f; w = new World(); w.placeBlock(4, 5, Blocks.STONE); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glOrtho(0, window_width, window_height, 0, 1, -1); glMatrixMode(GL_MODELVIEW); glEnable(GL_TEXTURE_2D); Font awtFont = new Font("Courier New", Font.BOLD, 12); font = new TrueTypeFont(awtFont, antiAlias); } private void gameLoop() { while (!Display.isCloseRequested()) { glClear(GL_COLOR_BUFFER_BIT); glLoadIdentity(); glPushMatrix(); glTranslatef(translatex, 0.0f, 0.0f); if (Keyboard.isKeyDown(Keyboard.KEY_SPACE)) { translatex += 2.0f; } w.draw(); inputManager(); glPopMatrix(); Display.update(); Display.sync(fps); } } </code></pre> <p>Draw method</p> <pre><code>public void draw() { texture.bind(); glLoadIdentity(); glTranslatef(x, y, 0); glBegin(GL_QUADS); { glTexCoord2f(0, 0); glVertex2f(0, 0); glTexCoord2f(1, 0); glVertex2f(BLOCK_SIZE, 0); glTexCoord2f(1, 1); glVertex2f(BLOCK_SIZE, BLOCK_SIZE); glTexCoord2f(0, 1); glVertex2f(0, BLOCK_SIZE); } glEnd(); glLoadIdentity(); } </code></pre> <p>It works fine without the textures, but I can't make it work to save my life.. Code is set up temporarily the game loop to try and just cause some basic translation when pressing the space bar</p> <p>Do I need to use a different method? How do I get this to work? </p> <p>By the way, using slick-util and lwjgl libraries...</p> <p><strong>............Edit...........</strong></p> <p>Didn't exactly fix it, but found an alternative way round it. I modified to the draw method to take in some offset variables, and used the relative translatex to offset the quads of each texture</p> <pre><code>public void draw(int offset_x, int offset_y) { texture.bind(); glLoadIdentity(); glTranslatef(x - offset_x, y - offset_y, 0); glBegin(GL_QUADS); { // Drawing the quads here } glEnd(); glLoadIdentity(); } </code></pre> <p>And then called through this:</p> <pre><code>w.draw(translatex, 0); </code></pre> <p>This is only a work around, but it works, so. If anyone has an actual solution, I can't help but think it'll be more efficient...</p>
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