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Add z-index management to HUD
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@ -1260,6 +1260,11 @@ precisely positioned items in the HUD.
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**Note**: `offset` _will_ adapt to screen DPI as well as user defined scaling
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factor!
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The `z_index` field specifies the order of HUD elements from back to front.
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Lower z-index elements are displayed behind higher z-index elements. Elements
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with same z-index are displayed in an arbitrary order. Default 0.
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Supports negative values.
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Below are the specific uses for fields in each type; fields not listed for that
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type are ignored.
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@ -7322,6 +7327,9 @@ Used by `Player:hud_add`. Returned by `Player:hud_get`.
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size = { x=100, y=100 },
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-- Size of element in pixels
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z_index = 0,
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-- Z index : lower z-index HUDs are displayed behind higher z-index HUDs
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}
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Particle definition
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@ -131,6 +131,7 @@ struct ClientEvent
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v2f *offset;
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v3f *world_pos;
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v2s32 *size;
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s16 z_index;
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} hudadd;
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struct
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{
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@ -2650,6 +2650,7 @@ void Game::handleClientEvent_HudAdd(ClientEvent *event, CameraOrientation *cam)
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e->offset = *event->hudadd.offset;
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e->world_pos = *event->hudadd.world_pos;
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e->size = *event->hudadd.size;
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e->z_index = event->hudadd.z_index;
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hud_server_to_client[server_id] = player->addHud(e);
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delete event->hudadd.pos;
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@ -2728,6 +2729,10 @@ void Game::handleClientEvent_HudChange(ClientEvent *event, CameraOrientation *ca
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case HUD_STAT_SIZE:
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e->size = *event->hudchange.v2s32data;
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break;
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case HUD_STAT_Z_INDEX:
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e->z_index = event->hudchange.data;
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break;
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}
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delete event->hudchange.v3fdata;
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@ -283,11 +283,25 @@ void Hud::drawLuaElements(const v3s16 &camera_offset)
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{
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u32 text_height = g_fontengine->getTextHeight();
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irr::gui::IGUIFont* font = g_fontengine->getFont();
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// Reorder elements by z_index
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std::vector<size_t> ids;
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for (size_t i = 0; i != player->maxHudId(); i++) {
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HudElement *e = player->getHud(i);
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if (!e)
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continue;
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auto it = ids.begin();
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while (it != ids.end() && player->getHud(*it)->z_index <= e->z_index)
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++it;
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ids.insert(it, i);
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}
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for (size_t i : ids) {
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HudElement *e = player->getHud(i);
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v2s32 pos(floor(e->pos.X * (float) m_screensize.X + 0.5),
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floor(e->pos.Y * (float) m_screensize.Y + 0.5));
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switch (e->type) {
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@ -43,6 +43,8 @@ const struct EnumString es_HudElementStat[] =
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{HUD_STAT_ALIGN, "alignment"},
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{HUD_STAT_OFFSET, "offset"},
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{HUD_STAT_WORLD_POS, "world_pos"},
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{HUD_STAT_SIZE, "size"},
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{HUD_STAT_Z_INDEX, "z_index"},
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{0, NULL},
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};
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@ -74,7 +74,8 @@ enum HudElementStat {
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HUD_STAT_ALIGN,
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HUD_STAT_OFFSET,
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HUD_STAT_WORLD_POS,
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HUD_STAT_SIZE
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HUD_STAT_SIZE,
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HUD_STAT_Z_INDEX,
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};
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struct HudElement {
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@ -90,6 +91,7 @@ struct HudElement {
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v2f offset;
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v3f world_pos;
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v2s32 size;
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s16 z_index = 0;
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};
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extern const EnumString es_HudElementType[];
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@ -1081,6 +1081,7 @@ void Client::handleCommand_HudAdd(NetworkPacket* pkt)
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v2f offset;
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v3f world_pos;
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v2s32 size;
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s16 z_index = 0;
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*pkt >> server_id >> type >> pos >> name >> scale >> text >> number >> item
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>> dir >> align >> offset;
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@ -1093,6 +1094,11 @@ void Client::handleCommand_HudAdd(NetworkPacket* pkt)
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*pkt >> size;
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} catch(SerializationError &e) {};
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try {
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*pkt >> z_index;
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}
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catch(PacketError &e) {}
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ClientEvent *event = new ClientEvent();
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event->type = CE_HUDADD;
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event->hudadd.server_id = server_id;
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@ -1108,6 +1114,7 @@ void Client::handleCommand_HudAdd(NetworkPacket* pkt)
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event->hudadd.offset = new v2f(offset);
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event->hudadd.world_pos = new v3f(world_pos);
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event->hudadd.size = new v2s32(size);
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event->hudadd.z_index = z_index;
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m_client_event_queue.push(event);
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}
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@ -563,6 +563,7 @@ enum ToClientCommand
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v2f1000 offset
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v3f1000 world_pos
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v2s32 size
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s16 z_index
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*/
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TOCLIENT_HUDRM = 0x4a,
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@ -1851,11 +1851,13 @@ void read_hud_element(lua_State *L, HudElement *elem)
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elem->size = lua_istable(L, -1) ? read_v2s32(L, -1) : v2s32();
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lua_pop(L, 1);
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elem->name = getstringfield_default(L, 2, "name", "");
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elem->text = getstringfield_default(L, 2, "text", "");
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elem->number = getintfield_default(L, 2, "number", 0);
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elem->item = getintfield_default(L, 2, "item", 0);
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elem->dir = getintfield_default(L, 2, "direction", 0);
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elem->name = getstringfield_default(L, 2, "name", "");
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elem->text = getstringfield_default(L, 2, "text", "");
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elem->number = getintfield_default(L, 2, "number", 0);
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elem->item = getintfield_default(L, 2, "item", 0);
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elem->dir = getintfield_default(L, 2, "direction", 0);
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elem->z_index = MYMAX(S16_MIN, MYMIN(S16_MAX,
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getintfield_default(L, 2, "z_index", 0)));
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// Deprecated, only for compatibility's sake
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if (elem->dir == 0)
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@ -1921,6 +1923,9 @@ void push_hud_element(lua_State *L, HudElement *elem)
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push_v3f(L, elem->world_pos);
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lua_setfield(L, -2, "world_pos");
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lua_pushnumber(L, elem->z_index);
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lua_setfield(L, -2, "z_index");
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}
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HudElementStat read_hud_change(lua_State *L, HudElement *elem, void **value)
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@ -1978,6 +1983,10 @@ HudElementStat read_hud_change(lua_State *L, HudElement *elem, void **value)
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elem->size = read_v2s32(L, 4);
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*value = &elem->size;
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break;
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case HUD_STAT_Z_INDEX:
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elem->z_index = MYMAX(S16_MIN, MYMIN(S16_MAX, luaL_checknumber(L, 4)));
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*value = &elem->z_index;
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break;
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}
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return stat;
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}
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@ -1654,7 +1654,8 @@ void Server::SendHUDAdd(session_t peer_id, u32 id, HudElement *form)
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pkt << id << (u8) form->type << form->pos << form->name << form->scale
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<< form->text << form->number << form->item << form->dir
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<< form->align << form->offset << form->world_pos << form->size;
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<< form->align << form->offset << form->world_pos << form->size
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<< form->z_index;
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Send(&pkt);
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}
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