Example usage for org.lwjgl.opengl GL11 glBegin

List of usage examples for org.lwjgl.opengl GL11 glBegin

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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:DrawShapes.java

public static void fillRectangle(float x, float y, float width, float height) {
    GL11.glBegin(GL11.GL_QUADS);
    GL11.glVertex3f(x, y, 0);//from   w  w w.  ja v  a  2  s .c om
    GL11.glVertex3f(x + width, y, 0);
    GL11.glVertex3f(x + width, y + height, 0);
    GL11.glVertex3f(x, y + height, 0);
    GL11.glEnd();
}

From source file:DrawShapes.java

public static void strokeRectangle(float x, float y, float width, float height) {
    GL11.glBegin(GL11.GL_LINE_LOOP);
    GL11.glVertex3f(x, y, 0);/*from ww w.  j  a  v a  2 s .  c o m*/
    GL11.glVertex3f(x + width, y, 0);
    GL11.glVertex3f(x + width, y + height, 0);
    GL11.glVertex3f(x, y + height, 0);
    GL11.glEnd();
}

From source file:DrawShapes.java

public static void strokeCircle(float radius, int sides) {
    float dtheta = (float) Math.PI * 2 / sides;
    GL11.glBegin(GL11.GL_LINES);
    for (int i = 0; i < sides; i++) {
        float x0, y0;
        float x1, y1;
        x0 = radius * (float) Math.cos(i * dtheta);
        y0 = radius * (float) Math.sin(i * dtheta);
        x1 = radius * (float) Math.cos((i + 1) * dtheta);
        y1 = radius * (float) Math.sin((i + 1) * dtheta);

        GL11.glVertex3f(x0, y0, 0);// w w w.  ja v  a 2 s.c o m
        GL11.glVertex3f(x1, y1, 0);
    }
    GL11.glEnd();
}

From source file:DrawShapes.java

public static void fillCircle(float radius, int sides) {
    float dtheta = (float) Math.PI * 2 / sides;
    GL11.glBegin(GL11.GL_TRIANGLES);
    for (int i = 0; i < sides; i++) {
        float x0, y0;
        float x1, y1;
        x0 = radius * (float) Math.cos(i * dtheta);
        y0 = radius * (float) Math.sin(i * dtheta);
        x1 = radius * (float) Math.cos((i + 1) * dtheta);
        y1 = radius * (float) Math.sin((i + 1) * dtheta);

        GL11.glVertex3f(0, 0, 0);/*from   w ww .j ava 2s .  c om*/
        GL11.glVertex3f(x0, y0, 0);
        GL11.glVertex3f(x1, y1, 0);
    }
    GL11.glEnd();
}

From source file:$.DrawSystem.java

License:Open Source License

private void drawLevel(Level level) {

        GL11.glPushMatrix();//from  www .  ja  v a  2 s  . co  m
        GL11.glLoadIdentity();
        IPlay backgroundAnimationPlay = level.getBackground();
        backgroundAnimationPlay.update((long) (world.getDelta() * 1000L));
        final IAnimationFrame currentFrame = backgroundAnimationPlay.getCurrentFrame();
        GL11.glBindTexture(GL11.GL_TEXTURE_2D, (Integer) currentFrame.getImage().getId());
        float x1 = -toolkit.getVirtualResolutionWidth() / 2.0f;
        float x2 = toolkit.getVirtualResolutionWidth() / 2.0f;
        float y1 = toolkit.getVirtualResolutionHeight() / 2.0f;
        float y2 = -toolkit.getVirtualResolutionHeight() / 2.0f;
        float u1 = currentFrame.getU1();
        float u2 = currentFrame.getU2();

        float v1 = currentFrame.getV2();
        float v2 = currentFrame.getV1();
        GL11.glBegin(GL11.GL_QUADS);
        GL11.glTexCoord2f(u1, v1);
        GL11.glVertex2f(x1, y2);
        GL11.glTexCoord2f(u2, v1);
        GL11.glVertex2f(x2, y2);
        GL11.glTexCoord2f(u2, v2);
        GL11.glVertex2f(x2, y1);
        GL11.glTexCoord2f(u1, v2);
        GL11.glVertex2f(x1, y1);
        GL11.glEnd();
        GL11.glPopMatrix();
    }

From source file:$.DrawSystem.java

License:Open Source License

private void drawSprite(Sprite sprite) {
        Vector pos = spriteProjector.project(sprite.getPosition());
        final IPlay play = sprite.getPlay();
        if (null != play) {
            GL11.glPushMatrix();/*from w ww . ja  v a 2  s  .  com*/
            GL11.glTranslatef(pos.x, pos.y, 0.0f);
            GL11.glRotatef(sprite.getRotate(), 0, 0, 1.0f);
            GL11.glScalef(sprite.getScale(), sprite.getScale(), 1);
            final IAnimationFrame frame = play.getCurrentFrame();
            final IAnimationImage image = frame.getImage();
            if (image.hasAlpha()) {
                GL11.glEnable(GL11.GL_BLEND);
            }
            GL11.glBindTexture(GL11.GL_TEXTURE_2D, (Integer) image.getId());

            final float u1, u2;
            if (sprite.isMirrorX()) {
                u1 = frame.getU2();
                u2 = frame.getU1();
            } else {
                u1 = frame.getU1();
                u2 = frame.getU2();
            }

            final float v1, v2;
            if (sprite.isMirrorY()) {
                v1 = frame.getV1();
                v2 = frame.getV2();
            } else {
                v1 = frame.getV2();
                v2 = frame.getV1();
            }
            GL11.glColor4f(sprite.getRed(), sprite.getGreen(), sprite.getBlue(), sprite.getAlpha());
            float x1 = -sprite.getWidth() / 2.0f;
            float x2 = sprite.getWidth() / 2.0f;
            float y1 = -sprite.getHeight() / 2.0f;
            float y2 = sprite.getHeight() / 2.0f;
            GL11.glBegin(GL11.GL_QUADS);
            GL11.glTexCoord2f(u1, v1);
            GL11.glVertex2f(x1, y2);
            GL11.glTexCoord2f(u2, v1);
            GL11.glVertex2f(x2, y2);
            GL11.glTexCoord2f(u2, v2);
            GL11.glVertex2f(x2, y1);
            GL11.glTexCoord2f(u1, v2);
            GL11.glVertex2f(x1, y1);
            GL11.glEnd();
            GL11.glColor3f(1f, 1f, 1f);
            if (image.hasAlpha()) {
                GL11.glDisable(GL11.GL_BLEND);
            }
            GL11.glPopMatrix();
        }
        if (null != sprite.getLabel()) {
            GL11.glPushMatrix();
            GL11.glTranslatef(pos.x, pos.y, 0.0f);
            GL11.glScalef(0.5f, -0.5f, 1f);
            GL11.glEnable(GL11.GL_BLEND);
            LwjglNuitFont font = (LwjglNuitFont) assets.getFont("");
            font.drawString(sprite.getLabel(), LwjglNuitFont.Align.CENTER);
            GL11.glDisable(GL11.GL_BLEND);
            GL11.glPopMatrix();
        }
    }

From source file:a1.gui.GUI_Map.java

License:Open Source License

public void RenderLightMap() {
    GL11.glBlendFunc(GL11.GL_ZERO, GL11.GL_SRC_COLOR);
    //Log.info("lightmap: "+LightMap);
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, LightMap); //Resource.textures.get("core_skin").getTextureID());

    GL11.glTranslatef(0, 0, 0);/*from   w w w  .  jav a2 s  .  c o m*/
    GL11.glColor4f(1.0f, 1.0f, 1.0f, 1.0f);

    float texwidth = 1024;
    float texheight = 1024;

    float newTextureOffsetX = 0 / texwidth;
    float newTextureOffsetY = 0 / texheight;
    float newTextureWidth = 1024 / texwidth;
    float newTextureHeight = 1024 / texheight;

    int w = 1024;
    int h = 1024;

    GL11.glBegin(GL11.GL_QUADS);
    {
        glTexCoord2f(newTextureOffsetX, newTextureOffsetY);
        glVertex2i(0, 0);

        glTexCoord2f(newTextureOffsetX, newTextureOffsetY + newTextureHeight);
        glVertex2i(0, h);

        glTexCoord2f(newTextureOffsetX + newTextureWidth, newTextureOffsetY + newTextureHeight);
        glVertex2i(w, h);

        glTexCoord2f(newTextureOffsetX + newTextureWidth, newTextureOffsetY);
        glVertex2i(w, 0);
    }

    GL11.glEnd();

    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
}

From source file:a1.Render2D.java

License:Open Source License

static public void Line(Coord c1, Coord c2, float w) {
    GL11.glLineWidth(w);/*  ww  w .j av a  2 s  .  c o  m*/
    GL11.glBegin(GL11.GL_LINES);
    GLColor();
    Vertex(c1);
    Vertex(c2);
    GL11.glEnd();
    CheckError();
}

From source file:a1.Render2D.java

License:Open Source License

static public void FillRect(Coord c, Coord sz) {
    GLColor();/* www.  j a  v a 2s . c  o  m*/
    GL11.glBegin(GL11.GL_QUADS);
    Vertex(c);
    Vertex(c.add(new Coord(sz.x, 0)));
    Vertex(c.add(sz));
    Vertex(c.add(new Coord(0, sz.y)));
    GL11.glEnd();
    CheckError();
}

From source file:a1.Render2D.java

License:Open Source License

static public void FillRect(Coord c1, Coord c2, Coord c3, Coord c4) {
    GLColor();/*from  ww w .j a va  2s  . c om*/
    GL11.glBegin(GL11.GL_QUADS);
    Vertex(c1);
    Vertex(c2);
    Vertex(c3);
    Vertex(c4);
    GL11.glEnd();
    CheckError();
}