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sfan5 2025-06-17 16:09:18 +02:00
parent 81d62d01d1
commit 147e9bf413
2 changed files with 47 additions and 42 deletions
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42
src/client/camera.cpp
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@ -631,28 +631,43 @@ void Camera::drawNametags()
core::matrix4 trans = m_cameranode->getProjectionMatrix();
trans *= m_cameranode->getViewMatrix();
gui::IGUIFont *font = g_fontengine->getFont();
const u32 default_font_size = g_fontengine->getFontSize(FM_Unspecified);
video::IVideoDriver *driver = RenderingEngine::get_video_driver();
v2u32 screensize = driver->getScreenSize();
// Note: hidden nametags (e.g. GenericCAO) are removed from the array
for (const Nametag *nametag : m_nametags) {
// Nametags are hidden in GenericCAO::updateNametag()
v3f pos = nametag->parent_node->getAbsolutePosition() + nametag->pos * BS;
f32 transformed_pos[4] = { pos.X, pos.Y, pos.Z, 1.0f };
trans.multiplyWith1x4Matrix(transformed_pos);
if (transformed_pos[3] > 0) {
std::wstring nametag_colorless =
if (transformed_pos[3] <= 0) // negative Z means behind camera
continue;
f32 zDiv = transformed_pos[3] == 0.0f ? 1.0f : (1.0f / transformed_pos[3]);
u32 font_size = 0;
if (nametag->scale_z) {
// Higher default since nametag should be reasonably visible
// even at distance.
u32 base_size = nametag->textsize.value_or(default_font_size * 4);
font_size = rangelim(base_size * BS * zDiv, 0, base_size);
} else {
font_size = nametag->textsize.value_or(default_font_size);
}
if (font_size <= 1)
continue;
// TODO: This is quite primitive. It would be better to draw the font once
// at its maximum size to an RTT and let normal scaling happen.
auto *font = g_fontengine->getFont(font_size);
assert(font);
std::wstring text =
unescape_translate(utf8_to_wide(nametag->text));
core::dimension2d<u32> textsize = font->getDimension(
nametag_colorless.c_str());
f32 zDiv = transformed_pos[3] == 0.0f ? 1.0f :
core::reciprocal(transformed_pos[3]);
core::dimension2d<u32> textsize = font->getDimension(text.c_str());
v2s32 screen_pos;
screen_pos.X = screensize.X *
(0.5 * transformed_pos[0] * zDiv + 0.5) - textsize.Width / 2;
(0.5f + transformed_pos[0] * zDiv * 0.5f) - textsize.Width / 2;
screen_pos.Y = screensize.Y *
(0.5 - transformed_pos[1] * zDiv * 0.5) - textsize.Height / 2;
(0.5f - transformed_pos[1] * zDiv * 0.5f) - textsize.Height / 2;
core::rect<s32> size(0, 0, textsize.Width, textsize.Height);
auto bgcolor = nametag->getBgColor(m_show_nametag_backgrounds);
@ -665,14 +680,15 @@ void Camera::drawNametags()
translate_string(utf8_to_wide(nametag->text)).c_str(),
size + screen_pos, nametag->textcolor);
}
}
}
Nametag *Camera::addNametag(scene::ISceneNode *parent_node,
const std::string &text, video::SColor textcolor,
std::optional<video::SColor> bgcolor, const v3f &pos)
{
Nametag *nametag = new Nametag(parent_node, text, textcolor, bgcolor, pos);
assert(parent_node);
Nametag *nametag = new Nametag{
parent_node, text, textcolor, bgcolor, std::nullopt, pos, false};
m_nametags.push_back(nametag);
return nametag;
}

21
src/client/camera.h
View file

@ -23,28 +23,17 @@ class WieldMeshSceneNode;
struct Nametag
{
scene::ISceneNode *parent_node;
scene::ISceneNode *parent_node = nullptr;
std::string text;
video::SColor textcolor;
std::optional<video::SColor> bgcolor;
v3f pos;
Nametag(scene::ISceneNode *a_parent_node,
const std::string &text,
const video::SColor &textcolor,
const std::optional<video::SColor> &bgcolor,
const v3f &pos):
parent_node(a_parent_node),
text(text),
textcolor(textcolor),
bgcolor(bgcolor),
pos(pos)
{
}
std::optional<u32> textsize;
v3f pos; // offset from parent node
bool scale_z;
video::SColor getBgColor(bool use_fallback) const
{
if (bgcolor)
if (bgcolor.has_value())
return bgcolor.value();
else if (!use_fallback)
return video::SColor(0, 0, 0, 0);