1 files changed, 84 insertions, 0 deletions
diff --git a/src/game/client/gui/status_lines.cc b/src/game/client/gui/status_lines.cc
new file mode 100644
index 0000000..74d0dbe
--- /dev/null
+++ b/src/game/client/gui/status_lines.cc
@@ -0,0 +1,84 @@
+#include "client/pch.hh"
+
+#include "client/gui/status_lines.hh"
+
+#include "client/gui/imdraw_ext.hh"
+
+#include "client/globals.hh"
+
+static float line_offsets[gui::STATUS_COUNT];
+static ImFont* line_fonts[gui::STATUS_COUNT];
+static float line_sizes[gui::STATUS_COUNT];
+
+static ImVec4 line_text_colors[gui::STATUS_COUNT];
+static ImVec4 line_shadow_colors[gui::STATUS_COUNT];
+static std::string line_strings[gui::STATUS_COUNT];
+static std::uint64_t line_spawns[gui::STATUS_COUNT];
+static float line_fadeouts[gui::STATUS_COUNT];
+
+void gui::status_lines::init(void)
+{
+    for(unsigned int i = 0U; i < STATUS_COUNT; ++i) {
+        line_text_colors[i] = ImVec4(0.0f, 0.0f, 0.0f, 0.0f);
+        line_shadow_colors[i] = ImVec4(0.0f, 0.0f, 0.0f, 0.0f);
+        line_strings[i] = std::string();
+        line_spawns[i] = UINT64_MAX;
+        line_fadeouts[i] = 0.0f;
+    }
+}
+
+void gui::status_lines::init_late(void)
+{
+    line_offsets[STATUS_DEBUG] = 64.0f;
+    line_offsets[STATUS_HOTBAR] = 40.0f;
+}
+
+void gui::status_lines::layout(void)
+{
+    line_fonts[STATUS_DEBUG] = globals::font_unscii8;
+    line_sizes[STATUS_DEBUG] = 4.0f;
+
+    line_fonts[STATUS_HOTBAR] = globals::font_unscii16;
+    line_sizes[STATUS_HOTBAR] = 8.0f;
+
+    auto viewport = ImGui::GetMainViewport();
+    auto draw_list = ImGui::GetForegroundDrawList();
+
+    for(unsigned int i = 0U; i < STATUS_COUNT; ++i) {
+        auto offset = line_offsets[i] * globals::gui_scale;
+        auto& text = line_strings[i];
+        auto* font = line_fonts[i];
+
+        auto size = font->CalcTextSizeA(line_sizes[i] * globals::gui_scale, FLT_MAX, 0.0f, text.c_str(), text.c_str() + text.size());
+        auto pos = ImVec2(0.5f * (viewport->Size.x - size.x), viewport->Size.y - offset);
+
+        auto spawn = line_spawns[i];
+        auto fadeout = line_fadeouts[i];
+        auto alpha = std::exp(-1.0f * std::pow(1.0e-6f * static_cast<float>(globals::curtime - spawn) / fadeout, 10.0f));
+
+        auto& color = line_text_colors[i];
+        auto& shadow = line_shadow_colors[i];
+        auto color_U32 = ImGui::GetColorU32(ImVec4(color.x, color.y, color.z, color.w * alpha));
+        auto shadow_U32 = ImGui::GetColorU32(ImVec4(shadow.x, shadow.y, shadow.z, color.w * alpha));
+
+        gui::imdraw_ext::text_shadow(text, pos, color_U32, shadow_U32, font, draw_list, line_sizes[i]);
+    }
+}
+
+void gui::status_lines::set(unsigned int line, std::string_view text, const ImVec4& color, float fadeout)
+{
+    line_text_colors[line] = ImVec4(color.x, color.y, color.z, color.w);
+    line_shadow_colors[line] = ImVec4(color.x * 0.1f, color.y * 0.1f, color.z * 0.1f, color.w);
+    line_strings[line] = text;
+    line_spawns[line] = globals::curtime;
+    line_fadeouts[line] = fadeout;
+}
+
+void gui::status_lines::unset(unsigned int line)
+{
+    line_text_colors[line] = ImVec4(0.0f, 0.0f, 0.0f, 0.0f);
+    line_shadow_colors[line] = ImVec4(0.0f, 0.0f, 0.0f, 0.0f);
+    line_strings[line] = std::string();
+    line_spawns[line] = UINT64_C(0);
+    line_fadeouts[line] = 0.0f;
+}