Example usage for com.badlogic.gdx.graphics GL20 GL_BLEND

Introduction

In this page you can find the example usage for com.badlogic.gdx.graphics GL20 GL_BLEND.

Prototype

int GL_BLEND

To view the source code for com.badlogic.gdx.graphics GL20 GL_BLEND.

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Usage

From source file:com.kotcrab.vis.editor.module.physicseditor.PRenderer.java

License:Apache License

public void drawBallThrowPath(Vector2 p1, Vector2 p2) {
    if (p1 == null || p2 == null)
        return;//from  w w w. j ava 2 s .c  o  m

    Gdx.gl.glLineWidth(3);
    Gdx.gl.glEnable(GL20.GL_BLEND);
    Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA);

    float w = 0.03f * camera.getZoom();

    drawer.setProjectionMatrix(camera.getCombinedMatrix());
    drawer.begin(ShapeRenderer.ShapeType.Line);
    drawer.setColor(BALLTHROWPATH_COLOR);
    drawer.line(p1.x, p1.y, p2.x, p2.y);
    drawer.end();

    drawer.setProjectionMatrix(camera.getCombinedMatrix());
    drawer.begin(ShapeType.Filled);
    drawer.setColor(BALLTHROWPATH_COLOR);
    drawer.rect(p2.cpy().sub(w / 2, w / 2).x, p2.cpy().sub(w / 2, w / 2).y, w, w);
    drawer.end();
}

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From source file:com.kotcrab.vis.editor.module.physicseditor.PRenderer.java

License:Apache License

private void drawBoundingBox(float w, float h) {
    Gdx.gl.glLineWidth(1);/*  w w  w . j  ava  2 s  .c  o  m*/
    Gdx.gl.glEnable(GL20.GL_BLEND);
    Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA);

    drawer.begin(ShapeType.Line);
    drawer.setColor(AXIS_COLOR);
    drawer.rect(0, 0, w, h);
    drawer.end();
}

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From source file:com.kotcrab.vis.editor.module.physicseditor.PRenderer.java

License:Apache License

private void drawGrid(float gap) {
    Gdx.gl.glLineWidth(1);// w ww .j av  a2s. com
    Gdx.gl.glEnable(GL20.GL_BLEND);
    Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA);

    if (gap <= 0)
        gap = 0.001f;
    float x = camera.getX();
    float y = camera.getY();
    float w = camera.getCamera().viewportWidth;
    float h = camera.getCamera().viewportHeight;
    float z = camera.getZoom();

    drawer.begin(ShapeRenderer.ShapeType.Line);
    drawer.setColor(GRID_COLOR);
    for (float d = 0; d < x + w / 2 * z; d += gap)
        drawer.line(d, y - h / 2 * z, d, y + h / 2 * z);
    for (float d = -gap; d > x - w / 2 * z; d -= gap)
        drawer.line(d, y - h / 2 * z, d, y + h / 2 * z);
    for (float d = 0; d < y + h / 2 * z; d += gap)
        drawer.line(x - w / 2 * z, d, x + w / 2 * z, d);
    for (float d = -gap; d > y - h / 2 * z; d -= gap)
        drawer.line(x - w / 2 * z, d, x + w / 2 * z, d);
    drawer.end();
}

---

From source file:com.kotcrab.vis.editor.module.physicseditor.PRenderer.java

License:Apache License

private void drawShapes(Array<ShapeModel> shapes, Vector2 nextPoint) {
    Gdx.gl.glLineWidth(2);/*from   w w  w .  j  av a  2 s  .  co  m*/
    Gdx.gl.glEnable(GL20.GL_BLEND);
    Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA);

    for (ShapeModel shape : shapes) {
        Array<Vector2> vs = shape.getVertices();
        if (vs.size == 0)
            continue;

        switch (shape.getType()) {
        case POLYGON:
            drawer.begin(ShapeRenderer.ShapeType.Line);
            drawer.setColor(SHAPE_COLOR);

            for (int i = 1; i < vs.size; i++)
                drawer.line(vs.get(i).x, vs.get(i).y, vs.get(i - 1).x, vs.get(i - 1).y);

            if (shape.isClosed()) {
                drawer.setColor(SHAPE_COLOR);
                drawer.line(vs.get(0).x, vs.get(0).y, vs.get(vs.size - 1).x, vs.get(vs.size - 1).y);
            } else {
                drawer.setColor(SHAPE_LASTLINE_COLOR);
                drawer.line(vs.get(vs.size - 1).x, vs.get(vs.size - 1).y, nextPoint.x, nextPoint.y);
            }

            drawer.end();
            break;

        case CIRCLE:
            if (shape.isClosed()) {
                Vector2 center = shape.getVertices().get(0);
                float radius = shape.getVertices().get(1).cpy().sub(center).len();
                if (radius > 0.0001f) {
                    drawer.begin(ShapeType.Line);
                    drawer.setColor(SHAPE_COLOR);
                    drawer.circle(center.x, center.y, radius, 20);
                    drawer.end();
                }
            } else {
                Vector2 center = shape.getVertices().get(0);
                float radius = nextPoint.cpy().sub(center).len();
                if (radius > 0.0001f) {
                    drawer.begin(ShapeType.Line);
                    drawer.setColor(SHAPE_LASTLINE_COLOR);
                    drawer.circle(center.x, center.y, radius, 20);
                    drawer.end();
                }
            }
            break;
        }
    }
}

---

From source file:com.kotcrab.vis.editor.module.physicseditor.PRenderer.java

License:Apache License

private void drawPoints(Array<ShapeModel> shapes, List<Vector2> selectedPoints, Vector2 nearestPoint,
        Vector2 nextPoint) {//from w  w  w . j  av a2 s.  co m
    Gdx.gl.glLineWidth(2);
    Gdx.gl.glEnable(GL20.GL_BLEND);
    Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA);

    float w = 0.025f * camera.getZoom();

    for (ShapeModel shape : shapes) {
        for (Vector2 p : shape.getVertices()) {
            if (p == nearestPoint || (selectedPoints != null && selectedPoints.contains(p))) {
                drawer.begin(ShapeType.Filled);
                drawer.setColor(SHAPE_COLOR);
                drawer.rect(p.cpy().sub(w / 2, w / 2).x, p.cpy().sub(w / 2, w / 2).y, w, w);
                drawer.end();
            } else {
                drawer.begin(ShapeType.Line);
                drawer.setColor(SHAPE_COLOR);
                drawer.rect(p.cpy().sub(w / 2, w / 2).x, p.cpy().sub(w / 2, w / 2).y, w, w);
                drawer.end();
            }
        }
    }

    if (nextPoint != null) {
        drawer.begin(ShapeType.Line);
        drawer.setColor(SHAPE_LASTLINE_COLOR);
        drawer.rect(nextPoint.cpy().sub(w / 2, w / 2).x, nextPoint.cpy().sub(w / 2, w / 2).y, w, w);
        drawer.end();
    }
}

---

From source file:com.kotcrab.vis.editor.module.physicseditor.PRenderer.java

License:Apache License

private void drawPolygons(Array<PolygonModel> polygons) {
    Gdx.gl.glLineWidth(2);//from w  w  w.java 2s .co m
    Gdx.gl.glEnable(GL20.GL_BLEND);
    Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA);

    drawer.begin(ShapeRenderer.ShapeType.Line);
    drawer.setColor(POLYGON_COLOR);

    for (PolygonModel polygon : polygons) {
        List<Vector2> vs = polygon.vertices;
        for (int i = 1, n = vs.size(); i < n; i++)
            drawer.line(vs.get(i).x, vs.get(i).y, vs.get(i - 1).x, vs.get(i - 1).y);
        if (vs.size() > 1)
            drawer.line(vs.get(0).x, vs.get(0).y, vs.get(vs.size() - 1).x, vs.get(vs.size() - 1).y);
    }

    drawer.end();
}

---

From source file:com.kotcrab.vis.editor.module.physicseditor.PRenderer.java

License:Apache License

private void drawOrigin(Vector2 o, Vector2 nearestPoint) {
    Gdx.gl.glLineWidth(2);/*from  ww  w.  j a va2s .  co m*/
    Gdx.gl.glEnable(GL20.GL_BLEND);
    Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA);

    float len = 0.03f * camera.getZoom();
    float radius = 0.02f * camera.getZoom();

    drawer.begin(ShapeRenderer.ShapeType.Line);
    drawer.setColor(ORIGIN_COLOR);
    drawer.line(o.x - len, o.y, o.x + len, o.y);
    drawer.line(o.x, o.y - len, o.x, o.y + len);
    drawer.end();

    if (nearestPoint != o) {
        drawer.begin(ShapeType.Line);
        drawer.setColor(ORIGIN_COLOR);
        drawer.circle(o.x, o.y, radius, 20);
        drawer.end();
    } else {
        drawer.begin(ShapeType.Filled);
        drawer.setColor(ORIGIN_COLOR);
        drawer.circle(o.x, o.y, radius, 20);
        drawer.end();
    }
}

---

From source file:com.kotcrab.vis.editor.module.physicseditor.PRenderer.java

License:Apache License

private void drawMouseSelection(float x1, float y1, float x2, float y2) {
    Gdx.gl.glLineWidth(3);/*from   www . j  a v a  2  s. c om*/
    Gdx.gl.glEnable(GL20.GL_BLEND);
    Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA);

    Rectangle rect = new Rectangle(Math.min(x1, x2), Math.min(y1, y2), Math.abs(x2 - x1), Math.abs(y2 - y1));

    drawer.begin(ShapeType.Filled);
    drawer.setColor(MOUSESELECTION_FILL_COLOR);
    drawer.rect(rect.x, rect.y, rect.width, rect.height);
    drawer.end();

    drawer.begin(ShapeType.Line);
    drawer.setColor(MOUSESELECTION_STROKE_COLOR);
    drawer.rect(rect.x, rect.y, rect.width, rect.height);
    drawer.end();
}

---

From source file:com.kotcrab.vis.editor.module.scene.entitymanipulator.RectangularSelection.java

License:Apache License

public void render(ShapeRenderer shapeRenderer) {
    if (rectToDraw != null) {
        Gdx.gl20.glEnable(GL20.GL_BLEND);

        Color border = selectionMode == SelectionMode.Inner ? INNER_MODE_BORDER_COLOR
                : OVERLAP_MODE_BORDER_COLOR;
        Color fill = selectionMode == SelectionMode.Inner ? INNER_MODE_FILL_COLOR : OVERLAP_MODE_FILL_COLOR;

        shapeRenderer.setColor(border);//from  ww w .  j a v a 2  s.com
        shapeRenderer.begin(ShapeType.Line);
        shapeRenderer.rect(rectToDraw.getX(), rectToDraw.getY(), rectToDraw.getWidth(), rectToDraw.getHeight());
        shapeRenderer.end();

        shapeRenderer.setColor(fill);
        shapeRenderer.begin(ShapeType.Filled);
        shapeRenderer.rect(rectToDraw.getX(), rectToDraw.getY(), rectToDraw.getWidth(), rectToDraw.getHeight());
        shapeRenderer.end();
    }
}

---

From source file:com.kotcrab.vis.editor.module.scene.RectangularSelection.java

License:Apache License

public void render(ShapeRenderer shapeRenderer) {
    if (rectToDraw != null) {
        Gdx.gl20.glEnable(GL20.GL_BLEND);

        shapeRenderer.setColor(0.11f, 0.63f, 0.89f, 1);
        shapeRenderer.begin(ShapeType.Line);
        shapeRenderer.rect(rectToDraw.getX(), rectToDraw.getY(), rectToDraw.getWidth(), rectToDraw.getHeight());
        shapeRenderer.end();//from   w  ww.  j  av a2 s .  c o  m

        shapeRenderer.setColor(0.05f, 0.33f, 0.49f, 0.3f);
        shapeRenderer.begin(ShapeType.Filled);
        shapeRenderer.rect(rectToDraw.getX(), rectToDraw.getY(), rectToDraw.getWidth(), rectToDraw.getHeight());
        shapeRenderer.end();
    }
}

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