public FloatBuffer calcCoordinatesForWavingBlocks() {
FloatBuffer buffer = BufferUtils.createFloatBuffer(32);
int counter = 0;
for (Block b : _blocksByTitle.values()) {
if (b.isWaving()) {
Vector2f pos = b.getTextureAtlasPos(Side.TOP);
buffer.put(pos.x * Block.TEXTURE_OFFSET);
buffer.put(pos.y * Block.TEXTURE_OFFSET);
counter++;
}
}
while (counter < 16) {
buffer.put(-1);
buffer.put(-1);
counter++;
}
buffer.flip();
return buffer;
}
