private void createMesh() {
Mesh.TriangleMeshBuilder tmb = new Mesh.TriangleMeshBuilder(mRS, 2, 0);
final int width = mWidth > mHeight ? mHeight : mWidth;
final int height = mWidth > mHeight ? mWidth : mHeight;
int wResolution = MESH_RESOLUTION;
int hResolution = (int) (MESH_RESOLUTION * height / (float) width);
mGlHeight = 2.0f * height / (float) width;
wResolution += 2;
hResolution += 2;
for (int y = 0; y <= hResolution; y++) {
final float yOffset = (((float) y / hResolution) * 2.f - 1.f) * height / width;
for (int x = 0; x <= wResolution; x++) {
tmb.addVertex(((float) x / wResolution) * 2.f - 1.f, yOffset);
}
}
for (int y = 0; y < hResolution; y++) {
final boolean shift = (y & 0x1) == 0;
final int yOffset = y * (wResolution + 1);
for (int x = 0; x < wResolution; x++) {
final int index = yOffset + x;
final int iWR1 = index + wResolution + 1;
if (shift) {
tmb.addTriangle(index, index + 1, iWR1);
tmb.addTriangle(index + 1, iWR1 + 1, iWR1);
} else {
tmb.addTriangle(index, iWR1 + 1, iWR1);
tmb.addTriangle(index, index + 1, iWR1 + 1);
}
}
}
mMesh = tmb.create(true);
mMeshWidth = wResolution + 1;
mMeshHeight = hResolution + 1;
mScript.set_g_WaterMesh(mMesh);
}
