Example usage for com.badlogic.gdx.graphics.g2d SpriteBatch isDrawing

Introduction

In this page you can find the example usage for com.badlogic.gdx.graphics.g2d SpriteBatch isDrawing.

Prototype

public boolean isDrawing() 

Source Link

Usage

From source file:com.gamejolt.mikykr5.ceidecpong.effects.ScrollingBackground.java

License:Open Source License

/**
 * Render this effect.//ww  w  . j a v  a 2s .  c o  m
 * 
 * @param batch The {@link SpriteBatch} to use for the rendering.
 * @throws IllegalStateException If the {@link SpriteBatch} did not call {@link SpriteBatch#begin()} befor this method was called.
 */
public void render(SpriteBatch batch) throws IllegalStateException {
    if (!batch.isDrawing())
        throw new IllegalStateException("Must be called between SpriteBatch.begin() and SpriteBatch.end()");

    // If the shader was loaded then set it as the current shader.
    if (shader != null) {
        batch.setShader(shader);
        shader.setUniformf(u_scaling, scaling);
        shader.setUniformf(u_displacement, displacement);
    }

    // Render.
    background.draw(batch);

    // If the shader was loaded then disable it.
    if (shader != null)
        batch.setShader(null);

    // Update the displacement a little bit.
    // GOTCHA: This will look slower or faster depending on the speed of the computer.
    displacement = displacement < 0.0f ? 1.0f : displacement - 0.0005f;
}

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From source file:com.mygdx.game.debugdrawers.NavMeshDebugDrawer.java

License:Apache License

private void drawNavMeshIndices(SpriteBatch spriteBatch, Camera camera, BitmapFont font) {
    // TODO: Get rid of all the transform matrix setting
    if (spriteBatch.isDrawing()) {
        spriteBatch.end();// w  ww . ja  v  a  2s .  co  m
    }
    spriteBatch.begin();
    spriteBatch.setProjectionMatrix(camera.combined);
    for (int i = 0; i < navMesh.graph.getNodeCount(); i++) {
        Triangle t = navMesh.graph.getTriangleFromGraphIndex(i);
        if (triangleIsVisible(t)) {
            tmpMatrix.set(camera.view).inv().getRotation(tmpQuat);
            tmpMatrix.setToTranslation(t.centroid).rotate(tmpQuat);
            spriteBatch.setTransformMatrix(tmpMatrix);
            font.draw(spriteBatch, Integer.toString(t.triIndex), 0, 0);
        }
    }
    spriteBatch.end();
}

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