Example usage for org.lwjgl.opengl GL11 glBegin

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glBegin.

Prototype

public static native void glBegin(@NativeType("GLenum") int mode);

Source Link

Document

Begins the definition of vertex attributes of a sequence of primitives to be transferred to the GL.

Usage

From source file:com.golden.gamedev.engine.lwjgl.LWJGLGraphics.java

License:Open Source License

/** ************************************************************************* */

public boolean drawImage(Image img, int x, int y, ImageObserver observer) {
    this.startPainting();

    // store the current model matrix
    GL11.glPushMatrix();/*w  w w.  j a v a 2s .co  m*/

    // bind to the appropriate texture for this sprite
    Texture texture = this.textureLoader.getTexture((BufferedImage) img);
    texture.bind();

    // translate to the right location and prepare to draw
    GL11.glTranslatef(x, y, 0);

    // draw a quad textured to match the sprite
    GL11.glBegin(GL11.GL_QUADS);
    GL11.glTexCoord2f(0, 0);
    GL11.glVertex2f(0, 0);

    GL11.glTexCoord2f(0, texture.getHeight());
    GL11.glVertex2f(0, texture.getImageHeight());

    GL11.glTexCoord2f(texture.getWidth(), texture.getHeight());
    GL11.glVertex2f(texture.getImageWidth(), texture.getImageHeight());

    GL11.glTexCoord2f(texture.getWidth(), 0);
    GL11.glVertex2f(texture.getImageWidth(), 0);
    GL11.glEnd();

    // restore the model view matrix to prevent contamination
    GL11.glPopMatrix();

    this.endPainting();

    return true;
}

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From source file:com.golden.gamedev.engine.lwjgl.LWJGLGraphics.java

License:Open Source License

public boolean drawImage(Image img, int x, int y, int width, int height, ImageObserver observer) {
    this.startPainting();

    GL11.glPushMatrix();//from   w ww  . j a  v  a2s  .  c  om

    Texture texture = this.textureLoader.getTexture((BufferedImage) img);
    texture.bind();

    GL11.glTranslatef(x, y, 0);

    GL11.glBegin(GL11.GL_QUADS);
    GL11.glTexCoord2f(0, 0);
    GL11.glVertex2f(0, 0);

    GL11.glTexCoord2f(0, texture.getHeight());
    GL11.glVertex2f(0, height);

    GL11.glTexCoord2f(texture.getWidth(), texture.getHeight());
    GL11.glVertex2f(width, height);

    GL11.glTexCoord2f(texture.getWidth(), 0);
    GL11.glVertex2f(width, 0);
    GL11.glEnd();

    GL11.glPopMatrix();

    this.endPainting();

    return true;
}

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From source file:com.golden.gamedev.engine.lwjgl.LWJGLGraphics.java

License:Open Source License

public boolean drawImage(Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2,
        ImageObserver observer) {
    this.startPainting();

    Texture texture = this.textureLoader.getTexture((BufferedImage) img);
    texture.bind();/*  www.ja  v  a 2 s .co m*/

    float tx0 = ((float) sx1 / texture.getTextureWidth());
    float tx1 = ((float) sx2 / texture.getTextureWidth());
    float ty0 = ((float) sy1 / texture.getTextureHeight());
    float ty1 = ((float) sy2 / texture.getTextureHeight());

    GL11.glBegin(GL11.GL_QUADS);
    GL11.glTexCoord2f(tx0, ty0);
    GL11.glVertex2f(dx1, dy1);

    GL11.glTexCoord2f(tx1, ty0);
    GL11.glVertex2f(dx2, dy1);

    GL11.glTexCoord2f(tx1, ty1);
    GL11.glVertex2f(dx2, dy2);

    GL11.glTexCoord2f(tx0, ty1);
    GL11.glVertex2f(dx1, dy2);
    GL11.glEnd();

    this.endPainting();

    return true;
}

---

From source file:com.golden.gamedev.engine.lwjgl.LWJGLGraphics.java

License:Open Source License

public void drawLine(int x1, int y1, int x2, int y2) {
    GL11.glDisable(GL11.GL_TEXTURE_2D);/* www  . j  a  v a  2s.co m*/

    GL11.glColor4f((float) this.color.getRed() / 255f, (float) this.color.getGreen() / 255f,
            (float) this.color.getBlue() / 255f, (float) this.color.getAlpha() / 255f);
    GL11.glLineWidth(1.0f);

    GL11.glBegin(GL11.GL_LINES);
    GL11.glVertex2f(x1, y1);
    GL11.glVertex2f(x2, y2);
    GL11.glEnd();

    GL11.glColor3f(1.0f, 1.0f, 1.0f);

    GL11.glEnable(GL11.GL_TEXTURE_2D);
}

---

From source file:com.golden.gamedev.engine.lwjgl.LWJGLGraphics.java

License:Open Source License

private void drawRect(int x, int y, int width, int height, int type, Color col) {
    GL11.glDisable(GL11.GL_TEXTURE_2D);//w w w.  ja va 2  s  .  c om

    GL11.glColor4f((float) col.getRed() / 255f, (float) col.getGreen() / 255f, (float) col.getBlue() / 255f,
            (float) col.getAlpha() / 255f);
    GL11.glLineWidth(1.0f);

    GL11.glBegin(type);
    GL11.glVertex2f(x, y);
    GL11.glVertex2f(x + width, y);
    GL11.glVertex2f(x + width, y + height);
    GL11.glVertex2f(x, y + height);
    GL11.glEnd();

    GL11.glColor3f(1.0f, 1.0f, 1.0f);

    GL11.glEnable(GL11.GL_TEXTURE_2D);
}

---

From source file:com.headswilllol.mineflat.gui.GuiElement.java

License:Open Source License

public void draw() {
    if (isActive()) {
        GL11.glColor4f(color.getX(), color.getY(), color.getZ(), color.getW());
        GL11.glBegin(GL11.GL_QUADS);
        GL11.glVertex2i(getAbsolutePosition().getX(), getAbsolutePosition().getY());
        GL11.glVertex2i(getAbsolutePosition().getX() + size.getX(), getAbsolutePosition().getY());
        GL11.glVertex2i(getAbsolutePosition().getX() + size.getX(), getAbsolutePosition().getY() + size.getY());
        GL11.glVertex2i(getAbsolutePosition().getX(), getAbsolutePosition().getY() + size.getY());
        GL11.glEnd();/* w ww .  jav  a2 s . c  om*/
        for (GuiElement ge : children.values()) {
            ge.draw();
        }
    }
}

---

From source file:com.headswilllol.mineflat.gui.TextField.java

License:Open Source License

@Override
public void draw() {
    if (isActive()) {
        GL11.glColor4f(bgColor.getX(), bgColor.getY(), bgColor.getZ(), bgColor.getW());
        GL11.glBegin(GL11.GL_QUADS);
        GL11.glVertex2i(getAbsolutePosition().getX(), getAbsolutePosition().getY());
        GL11.glVertex2i(getAbsolutePosition().getX() + getSize().getX(), getAbsolutePosition().getY());
        GL11.glVertex2i(getAbsolutePosition().getX() + getSize().getX(),
                getAbsolutePosition().getY() + getSize().getY());
        GL11.glVertex2i(getAbsolutePosition().getX(), getAbsolutePosition().getY() + getSize().getY());
        GL11.glEnd();/*from  w w  w.  ja  v  a  2  s .  co  m*/
        GL11.glColor4f(textColor.getX(), textColor.getY(), textColor.getZ(), textColor.getW());
        GraphicsHandler.drawString(getText(), getAbsolutePosition().getX() + 3,
                getAbsolutePosition().getY() + 3, getSize().getY() - 6, false);
        if (selected == this) {
            GL11.glBegin(GL11.GL_QUADS);
            int /* I got 'em foaming from the mouth and I just hit 'em with the */ baseX = getAbsolutePosition()
                    .getX()
                    + GraphicsHandler.getStringLength(getText().substring(0, column + 1), getSize().getY() - 6)
                    + 1;
            int baseY = getAbsolutePosition().getY() + 1;
            GL11.glVertex2i(baseX, baseY);
            GL11.glVertex2i(baseX + 2, baseY);
            GL11.glVertex2i(baseX + 2, baseY + getSize().getY() - 2);
            GL11.glVertex2i(baseX, baseY + getSize().getY() - 2);
            GL11.glEnd();
        }
    }
}

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From source file:com.irr310.i3d.scene.I3dCamera.java

License:Open Source License

public void display(float width, float height) {

    this.currentWidth = width;
    this.currentHeight = height;

    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();/*from   ww w .j a  v a  2  s .com*/
    GL11.glOrtho(0, width, 0, height, -2000.0, 2000.0);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();

    backgroundScene.display(this);

    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    initPerspective();
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();

    GL11.glPushMatrix();

    configureView(glu);

    if (!configured) {
        configured = true;
        if (cameraInitialisation != null) {
            cameraInitialisation.run();
            cameraInitialisation = null;
        }
    }

    GL11.glColor3f(1, 0, 0);
    GL11.glBegin(GL11.GL_LINES);
    GL11.glVertex3d(0, 0, 0);
    GL11.glVertex3d(100, 100, 100);
    GL11.glEnd();

    preDisplayScene();
    if (currentScene != null) {
        currentScene.display(this);
    }
    postDisplayScene();

    preDisplayGui();
    postDisplayGui();

    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GL11.glOrtho(0, width, 0, height, -2000.0, 2000.0);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();

    hudScene.display(this);

    GL11.glPopMatrix();

}

---

From source file:com.irr310.i3d.scene.I3dEye3DCamera.java

License:Open Source License

private void displayTarget() {

    GL11.glColor4f(1.0f, 0.5f, 0.5f, 0.8f);
    GL11.glLineWidth(1.2f);//from ww  w .j  ava  2 s.  c  o  m
    GL11.glBegin(GL11.GL_LINES);
    {

        GL11.glColor4f(1.0f, 0.0f, 0.0f, 0.8f);
        GL11.glVertex3d(-1, 0, 0);
        GL11.glVertex3d(1, 0, 0);

        GL11.glVertex3d(0.9, 0.1, 0);
        GL11.glVertex3d(1, 0, 0);

        GL11.glVertex3d(0.9, -0.1, 0);
        GL11.glVertex3d(1, 0, 0);

        // y
        GL11.glColor4f(0.0f, 1.0f, 0.0f, 0.8f);
        GL11.glVertex3d(0, -1, 0);
        GL11.glVertex3d(0, 1, 0);

        GL11.glVertex3d(0.1, 0.9, 0);
        GL11.glVertex3d(0, 1, 0);

        GL11.glVertex3d(-0.1, 0.9, 0);
        GL11.glVertex3d(0, 1, 0);

        // z
        GL11.glColor4f(0.0f, 0.0f, 1.0f, 0.8f);
        GL11.glVertex3d(0, 0, -1);
        GL11.glVertex3d(0, 0, 1);

        GL11.glVertex3d(0.1, 0, 0.9);
        GL11.glVertex3d(0, 0, 1);

        GL11.glVertex3d(-0.1, 0, 0.9);
        GL11.glVertex3d(0, 0, 1);

    }
    GL11.glEnd();

    GL11.glPointSize(1.2f);
    GL11.glBegin(GL11.GL_POINTS);
    {
        GL11.glVertex3d(position.x, position.y, position.z);

    }
    GL11.glEnd();

}

---

From source file:com.jmex.bui.background.TintedBackground.java

License:Open Source License

public void render(Renderer renderer, int x, int y, int width, int height, float alpha) {
    super.render(renderer, x, y, width, height, alpha);

    BComponent.applyDefaultStates();// w  w  w.  j a v a2 s . c o  m
    BImage.blendState.apply();

    GL11.glColor4f(_color.r, _color.g, _color.b, _color.a * alpha);
    GL11.glBegin(GL11.GL_QUADS);
    GL11.glVertex2f(x, y);
    GL11.glVertex2f(x + width, y);
    GL11.glVertex2f(x + width, y + height);
    GL11.glVertex2f(x, y + height);
    GL11.glEnd();
}

---

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