Example usage for com.badlogic.gdx.utils ShortArray ShortArray

Introduction

In this page you can find the example usage for com.badlogic.gdx.utils ShortArray ShortArray.

Prototype

public ShortArray(short[] array) 

Source Link

Document

Creates a new ordered array containing the elements in the specified array.

Usage

From source file:gaia.cu9.ari.gaiaorbit.util.g3d.MeshBuilder2.java

License:Apache License

@Override
public void sphere(final Matrix4 transform, float width, float height, float depth, int divisionsU,
        int divisionsV, float angleUFrom, float angleUTo, float angleVFrom, float angleVTo) {
    // FIXME create better sphere method (- only one vertex for each pole, - position)
    final float hw = width * 0.5f;
    final float hh = height * 0.5f;
    final float hd = depth * 0.5f;
    final float auo = MathUtils.degreesToRadians * angleUFrom;
    final float stepU = (MathUtils.degreesToRadians * (angleUTo - angleUFrom)) / divisionsU;
    final float avo = MathUtils.degreesToRadians * angleVFrom;
    final float stepV = (MathUtils.degreesToRadians * (angleVTo - angleVFrom)) / divisionsV;
    final float us = 1f / divisionsU;
    final float vs = 1f / divisionsV;
    float u = 0f;
    float v = 0f;
    float angleU = 0f;
    float angleV = 0f;
    VertexInfo curr1 = vertTmp3.set(null, null, null, null);
    curr1.hasUV = curr1.hasPosition = curr1.hasNormal = true;

    if (tmpIndices == null)
        tmpIndices = new ShortArray(divisionsU * 2);
    final int s = divisionsU + 3;
    tmpIndices.ensureCapacity(s);/*from  w  ww  .  j  av a2s.  co m*/
    while (tmpIndices.size > s)
        tmpIndices.pop();
    while (tmpIndices.size < s)
        tmpIndices.add(-1);
    int tempOffset = 0;

    ensureRectangles((divisionsV + 1) * (divisionsU + 1), divisionsV * divisionsU);
    for (int iv = 0; iv <= divisionsV; iv++) {
        angleV = avo + stepV * iv;
        v = vs * iv;
        final float t = MathUtils.sin(angleV);
        final float h = MathUtils.cos(angleV) * hh;
        for (int iu = 0; iu <= divisionsU; iu++) {
            angleU = auo + stepU * iu;
            u = 1f - us * iu;
            curr1.position.set(MathUtils.cos(angleU) * hw * t, h, MathUtils.sin(angleU) * hd * t)
                    .mul(transform);
            curr1.normal.set(curr1.position).nor();
            curr1.uv.set(u, v);
            tmpIndices.set(tempOffset, vertex(curr1));
            final int o = tempOffset + s;
            if ((iv > 0) && (iu > 0)) // FIXME don't duplicate lines and points
                rect(tmpIndices.get(tempOffset), tmpIndices.get((o - 1) % s),
                        tmpIndices.get((o - (divisionsU + 2)) % s), tmpIndices.get((o - (divisionsU + 1)) % s));
            tempOffset = (tempOffset + 1) % tmpIndices.size;
        }
    }
}

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From source file:gaia.cu9.ari.gaiaorbit.util.g3d.MeshBuilder2.java

License:Apache License

@Override
public void sphere(final Matrix4 transform, float width, float height, float depth, int divisionsU,
        int divisionsV, boolean flipNormals, float angleUFrom, float angleUTo, float angleVFrom,
        float angleVTo) {
    // FIXME create better sphere method (- only one vertex for each pole, - position)
    final float hw = width * 0.5f;
    final float hh = height * 0.5f;
    final float hd = depth * 0.5f;
    final float auo = MathUtils.degreesToRadians * angleUFrom;
    final float stepU = (MathUtils.degreesToRadians * (angleUTo - angleUFrom)) / divisionsU;
    final float avo = MathUtils.degreesToRadians * angleVFrom;
    final float stepV = (MathUtils.degreesToRadians * (angleVTo - angleVFrom)) / divisionsV;
    final float us = 1f / divisionsU;
    final float vs = 1f / divisionsV;
    float u = 0f;
    float v = 0f;
    float angleU = 0f;
    float angleV = 0f;
    VertexInfo curr1 = vertTmp3.set(null, null, null, null);
    curr1.hasUV = curr1.hasPosition = curr1.hasNormal = true;

    if (tmpIndices == null)
        tmpIndices = new ShortArray(divisionsU * 2);
    final int s = divisionsU + 3;
    tmpIndices.ensureCapacity(s);/*from w  w w .ja  v  a 2  s.com*/
    while (tmpIndices.size > s)
        tmpIndices.pop();
    while (tmpIndices.size < s)
        tmpIndices.add(-1);
    int tempOffset = 0;

    ensureRectangles((divisionsV + 1) * (divisionsU + 1), divisionsV * divisionsU);
    for (int iv = 0; iv <= divisionsV; iv++) {
        angleV = avo + stepV * iv;
        v = vs * iv;
        final float t = MathUtils.sin(angleV);
        final float h = MathUtils.cos(angleV) * hh;
        for (int iu = 0; iu <= divisionsU; iu++) {
            angleU = auo + stepU * iu;
            u = 1f - us * iu;
            curr1.position.set(MathUtils.cos(angleU) * hw * t, h, MathUtils.sin(angleU) * hd * t)
                    .mul(transform);
            curr1.normal.set(curr1.position).nor();
            curr1.uv.set(u, v);
            tmpIndices.set(tempOffset, vertex(curr1));
            final int o = tempOffset + s;
            if ((iv > 0) && (iu > 0)) // FIXME don't duplicate lines and points
                if (!flipNormals) {
                    rect(tmpIndices.get(tempOffset), tmpIndices.get((o - 1) % s),
                            tmpIndices.get((o - (divisionsU + 2)) % s),
                            tmpIndices.get((o - (divisionsU + 1)) % s));
                } else {
                    rect(tmpIndices.get(tempOffset), tmpIndices.get((o - (divisionsU + 1)) % s),
                            tmpIndices.get((o - (divisionsU + 2)) % s), tmpIndices.get((o - 1) % s));
                }
            tempOffset = (tempOffset + 1) % tmpIndices.size;
        }
    }
}

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