public Grid(Context context) {
super(context);
setEGLContextClientVersion(2);
setRenderer(this);
setRenderMode(RENDERMODE_CONTINUOUSLY);
quadVertices = GeometryHelper.createScreenQuad();
float[] line_data = new float[LINE_COUNT * 3];
int line = 0;
final float k = 1.0f;
for (int x = 0; x <= GRID_DIM; ++x) {
for (int y = 0; y <= GRID_DIM; ++y) {
line_data[6 * line + 0] = (((float) x / GRID_DIM) * 2 - 1) * k;
line_data[6 * line + 1] = -1.0f * k;
line_data[6 * line + 2] = (((float) y / GRID_DIM));
line_data[6 * line + 3] = (((float) x / GRID_DIM) * 2 - 1) * k;
line_data[6 * line + 4] = 1.0f * k;
line_data[6 * line + 5] = (((float) y / GRID_DIM));
++line;
line_data[6 * line + 0] = -1.0f * k;
line_data[6 * line + 1] = (((float) x / GRID_DIM) * 2 - 1) * k;
line_data[6 * line + 2] = (((float) y / GRID_DIM));
line_data[6 * line + 3] = 1.0f * k;
line_data[6 * line + 4] = (((float) x / GRID_DIM) * 2 - 1) * k;
line_data[6 * line + 5] = (((float) y / GRID_DIM));
++line;
}
}
for (int x = 0; x <= GRID_DIM; ++x) {
for (int y = 0; y <= GRID_DIM; ++y) {
line_data[6 * line + 0] = (((float) x / GRID_DIM) * 2 - 1) * k;
line_data[6 * line + 1] = (((float) y / GRID_DIM) * 2 - 1) * k;
line_data[6 * line + 2] = 0.0f;
line_data[6 * line + 3] = (((float) x / GRID_DIM) * 2 - 1) * k;
line_data[6 * line + 4] = (((float) y / GRID_DIM) * 2 - 1) * k;
line_data[6 * line + 5] = 1.0f;
++line;
}
}
lineVertices = new VertexBuffer(line_data, new short[0], false);
}
