//----[ update ]-------------------------------------------------------------
void Fluid::update(MapManager* map,
int center_x,
int center_y,
const TileVisibility* visibility,
bool visible_areas_valid[2],
const VisibleTilesRect::Area new_visible_areas[2]) {
bool fluid_changed_or_is_visible = false;
if (visible_areas_valid[0]) {
fluid_changed_or_is_visible = updateCachedTextures(false, map, &new_visible_areas[0]);
}
if (visible_areas_valid[1]) {
fluid_changed_or_is_visible |= updateCachedTextures(fluid_changed_or_is_visible,
map,
&new_visible_areas[1]);
}
// For much of the map there is no fluid at all. If this is the case, there is
// no need to lock the buffers, update colors or do any other processing.
if (fluid_changed_or_is_visible) {
int first_visible_column = center_x - VISIBLE_HORIZONTAL_EXTENT;
int first_visible_row = center_y - VISIBLE_VERTICAL_EXTENT;
// Rewrite the fluid's colors based on which can be seen
TerrainVertex* vertices = NULL;
if (lockVB(first_visible_column,
first_visible_row,
visibility,
&vertices)) {
if (visible_areas_valid[0]) writeVertices(&new_visible_areas[0], vertices);
if (visible_areas_valid[1]) writeVertices(&new_visible_areas[1], vertices);
unlockVB();
}
// Write the batches
updateIB(first_visible_column, first_visible_row, visibility);
}
}
void FloraRenderer::postUnlock()
{
MF_ASSERT( pLocked_ != NULL );
unlockVB();
pLocked_ = NULL;
}
