bool GraphicAnimation::isVisible(const CViewport &vp, const CPosition &pos)
{
// invisible graphics always invisible
if (!g) {
return false;
}
PixelSize graphicSize(g->Width, g->Height);
PixelDiff margin(PixelTileSize.x - 1, PixelTileSize.y - 1);
PixelPos position(pos.x, pos.y);
Vec2i minPos = Map.MapPixelPosToTilePos(position);
Vec2i maxPos = Map.MapPixelPosToTilePos(position + graphicSize + margin);
Map.Clamp(minPos);
Map.Clamp(maxPos);
if (!vp.AnyMapAreaVisibleInViewport(minPos, maxPos)) {
return false;
}
Vec2i p;
for (p.x = minPos.x; p.x <= maxPos.x; ++p.x) {
for (p.y = minPos.y; p.y <= maxPos.y; ++p.y) {
if (ReplayRevealMap || Map.Field(p)->playerInfo.IsTeamVisible(*ThisPlayer)) {
return true;
}
}
}
return false;
}
/**
** Check missile visibility in a given viewport.
**
** @param vp Viewport to be checked.
** @param missile Missile pointer to check if visible.
**
** @return Returns true if visible, false otherwise.
*/
static int MissileVisibleInViewport(const CViewport &vp, const Missile &missile)
{
Vec2i boxmin;
Vec2i boxmax;
GetMissileMapArea(missile, boxmin, boxmax);
if (!vp.AnyMapAreaVisibleInViewport(boxmin, boxmax)) {
return 0;
}
Vec2i pos;
for (pos.x = boxmin.x; pos.x <= boxmax.x; ++pos.x) {
for (pos.y = boxmin.y; pos.y <= boxmax.y; ++pos.y) {
if (ReplayRevealMap || Map.Field(pos)->playerInfo.IsTeamVisible(*ThisPlayer)) {
return 1;
}
}
}
return 0;
}