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https://github.com/orange-cpp/omath.git
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improved stuff
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@@ -4,7 +4,9 @@
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#include "omath/hud/renderer_realizations/imgui_renderer.hpp"
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#ifdef OMATH_IMGUI_INTEGRATION
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#include <cmath>
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#include <imgui.h>
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#include <imgui_internal.h>
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namespace omath::hud
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{
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@@ -87,6 +89,34 @@ namespace omath::hud
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const std::string_view& text)
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{
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auto* draw_list = ImGui::GetBackgroundDrawList();
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if (gradient.animated)
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{
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const float animation_offset = static_cast<float>(ImGui::GetTime()) * gradient.animation_speed;
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float cursor_x = position.x;
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const char* glyph_start = text.data();
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const char* const text_end = text.data() + text.size();
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int glyph_index = 0;
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while (glyph_start < text_end)
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{
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unsigned int codepoint;
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const int glyph_size = ImTextCharFromUtf8(&codepoint, glyph_start, text_end);
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if (glyph_size <= 0)
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break;
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static_cast<void>(codepoint);
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const char* const glyph_end = glyph_start + glyph_size;
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const float blend =
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(std::sin(animation_offset + static_cast<float>(glyph_index) * gradient.animation_spread) + 1.f)
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* 0.5f;
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const auto color = gradient.top_left.value() * (1.f - blend) + gradient.top_right.value() * blend;
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draw_list->AddText({cursor_x, position.y}, Color{color}.to_im_color(), glyph_start, glyph_end);
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cursor_x += ImGui::CalcTextSize(glyph_start, glyph_end).x;
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glyph_start = glyph_end;
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++glyph_index;
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}
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return;
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}
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const int vertex_start = draw_list->VtxBuffer.Size;
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draw_list->AddText(position.to_im_vec2(), IM_COL32_WHITE, text.data(), text.data() + text.size());
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