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

Introduction

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

Prototype

@Override
    public void setBlendFunction(int srcFunc, int dstFunc) 

Source Link

Usage

From source file:at.therefactory.jewelthief.ui.Particles.java

License:Open Source License

/**
 * if particle effect includes additive or pre-multiplied particle emitters
 * you can turn off blend function clean-up to save a lot of draw calls
 * but remember to switch the Batch back to GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA
 * before drawing "regular" sprites or your Stage.
 *
 * @param batch/*from   w  ww .j  av  a 2s.co  m*/
 */
private void resetBlendFunction(SpriteBatch batch) {
    batch.setBlendFunction(-1, -1);
    Gdx.gl20.glBlendFuncSeparate(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA, GL20.GL_ONE,
            GL20.GL_DST_ALPHA);
}

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From source file:com.bmnb.fly_dragonfly.graphics.GameParticleEmitter.java

License:Apache License

public void draw(SpriteBatch spriteBatch) {
    if (additive)
        spriteBatch.setBlendFunction(GL10.GL_SRC_ALPHA, GL10.GL_ONE);

    Particle[] particles = this.particles;
    boolean[] active = this.active;
    int activeCount = this.activeCount;

    for (int i = 0, n = active.length; i < n; i++)
        if (active[i])
            particles[i].draw(spriteBatch);
    this.activeCount = activeCount;

    if (additive)
        spriteBatch.setBlendFunction(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);
}

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From source file:com.bmnb.fly_dragonfly.graphics.GameParticleEmitter.java

License:Apache License

/** Updates and draws the particles. This is slightly more efficient than calling {@link #update(float)} and
 * {@link #draw(SpriteBatch)} separately. */
public void draw(SpriteBatch spriteBatch, float delta) {
    accumulator += Math.min(delta * 1000, 250);
    if (accumulator < 1) {
        draw(spriteBatch);/*ww w  .ja va 2 s.co m*/
        return;
    }

    //      com.badlogic.gdx.graphics.g2d.ParticleEmitter

    int deltaMillis = (int) accumulator;
    accumulator -= deltaMillis;

    if (additive)
        spriteBatch.setBlendFunction(GL20.GL_SRC_ALPHA, GL20.GL_ONE);

    Particle[] particles = this.particles;
    boolean[] active = this.active;
    int activeCount = this.activeCount;
    for (int i = 0, n = active.length; i < n; i++) {
        if (active[i]) {
            Particle particle = particles[i];
            if (updateParticle(particle, delta, deltaMillis) && !particle.isDead())
                particle.draw(spriteBatch);
            else {
                particle.kill();
                active[i] = false;
                activeCount--;
            }
        }
    }
    this.activeCount = activeCount;

    if (additive)
        spriteBatch.setBlendFunction(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);

    if (delayTimer < delay) {
        delayTimer += deltaMillis;
        return;
    }

    if (firstUpdate) {
        firstUpdate = false;
        addParticle();
    }

    if (durationTimer < duration)
        durationTimer += deltaMillis;
    else {
        if (!continuous || allowCompletion)
            return;
        restart();
    }

    emissionDelta += deltaMillis;
    float emissionTime = emission + emissionDiff * emissionValue.getScale(durationTimer / (float) duration);
    if (emissionTime > 0) {
        emissionTime = 1000 / emissionTime;
        if (emissionDelta >= emissionTime) {
            int emitCount = (int) (emissionDelta / emissionTime);
            emitCount = Math.min(emitCount, maxParticleCount - activeCount);
            emissionDelta -= emitCount * emissionTime;
            emissionDelta %= emissionTime;
            addParticles(emitCount);
        }
    }
    if (activeCount < minParticleCount)
        addParticles(minParticleCount - activeCount);
}

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From source file:net.bplaced.therefactory.nomoore.utils.Particles.java

License:Open Source License

private void resetBlendFunction(SpriteBatch batch) {
    batch.setBlendFunction(-1, -1);
    Gdx.gl20.glBlendFuncSeparate(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA, GL20.GL_ONE,
            GL20.GL_DST_ALPHA);/*  w  w w. ja  v a2 s.co  m*/
}

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From source file:org.bladecoder.bladeengine.model.Scene.java

License:Apache License

public void draw(SpriteBatch spriteBatch) {

    if (background != null) {
        spriteBatch.disableBlending();/*from  w  w  w.ja va 2  s. c  o  m*/

        float x = 0;

        for (Texture tile : background) {
            spriteBatch.draw(tile, x, 0f);
            x += tile.getWidth();
        }

        spriteBatch.enableBlending();
    }

    for (Actor a : orderedActors) {
        if (a instanceof SpriteActor)
            ((SpriteActor) a).draw(spriteBatch);
    }

    for (SpriteActor a : fgActors) {
        a.draw(spriteBatch);
    }

    // Draw the light map
    if (lightMap != null) {
        // Multiplicative blending for light maps
        spriteBatch.setBlendFunction(GL20.GL_DST_COLOR, GL20.GL_ZERO);

        float x = 0;

        for (Texture tile : lightMap) {
            spriteBatch.draw(tile, x, 0f);
            x += tile.getWidth();
        }

        spriteBatch.setBlendFunction(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA);
    }

    if (overlay != null) {
        overlay.draw(spriteBatch);
    }

    if (EngineLogger.debugMode() && EngineLogger.getDebugLevel() == EngineLogger.DEBUG1) {

        StringBuilder sb = new StringBuilder();

        for (Actor a : orderedActors) {
            Rectangle r = a.getBBox().getBoundingRectangle();
            sb.setLength(0);
            sb.append(a.getId());
            if (a.getState() != null)
                sb.append(".").append(a.getState());
            // sb.append(" (").append((int) r.getX()).append(", ");
            // sb.append((int) r.getY()).append(", ").append((int)
            // r.getWidth());
            // sb.append(", ").append((int) r.getHeight()).append(") ");
            EngineLogger.getDebugFont().draw(spriteBatch, sb.toString(), r.getX(), r.getY());
        }

    }
}

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