add projectile

examples/example_hud/gui/main_window.cpp

@@ -164,6 +164,17 @@ namespace imgui_desktop::gui
             ImGui::SliderFloat("Radius##aim", &m_aim_radius, 1.f, 10.f);
         }
 
+        if (ImGui::CollapsingHeader("Projectile Aim"))
+        {
+            ImGui::Checkbox("Show##proj", &m_show_proj);
+            ImGui::ColorEdit4("Color##proj", reinterpret_cast<float*>(&m_proj_color), ImGuiColorEditFlags_NoInputs);
+            ImGui::SliderFloat("Size##proj", &m_proj_size, 1.f, 30.f);
+            ImGui::SliderFloat("Line width##proj", &m_proj_line_width, 0.5f, 5.f);
+            ImGui::SliderFloat("Pos X##proj", &m_proj_pos_x, 0.f, vp->Size.x);
+            ImGui::SliderFloat("Pos Y##proj", &m_proj_pos_y, 0.f, vp->Size.y);
+            ImGui::Combo("Figure##proj", &m_proj_figure, "Circle\0Square\0");
+        }
+
         if (ImGui::CollapsingHeader("Snap Line"))
         {
             ImGui::Checkbox("Show##snap", &m_show_snap);
@@ -235,6 +246,7 @@ namespace imgui_desktop::gui
                         when(m_show_aim, AimDot{{m_entity_x, m_entity_top_y+40.f}, m_aim_color, m_aim_radius}),
                         when(m_show_scan, ScanMarker{m_scan_color, m_scan_outline, m_scan_outline_thickness}),
                         when(m_show_skeleton, Skeleton{m_skel_color, m_skel_thickness}),
+                        when(m_show_proj, ProjectileAim{{m_proj_pos_x, m_proj_pos_y}, m_proj_color, m_proj_size, m_proj_line_width, static_cast<ProjectileAim::Figure>(m_proj_figure)}),
                         when(m_show_snap, SnapLine{{vp->Size.x / 2.f, vp->Size.y}, m_snap_color, m_snap_width}));
     }
 

examples/example_hud/gui/main_window.hpp

@@ -82,5 +82,13 @@ namespace imgui_desktop::gui
         omath::Color m_snap_color = omath::Color::from_rgba(255, 50, 50, 255);
         float m_snap_width = 1.5f;
         bool m_show_snap = true;
+
+        // Projectile aim
+        omath::Color m_proj_color = omath::Color::from_rgba(255, 50, 50, 255);
+        float m_proj_size = 10.f;
+        float m_proj_line_width = 1.5f;
+        float m_proj_pos_x = 300.f, m_proj_pos_y = 30.f;
+        int m_proj_figure = 1; // 0=circle, 1=square
+        bool m_show_proj = true;
     };
 } // namespace imgui_desktop::gui

include/omath/hud/entity_overlay.hpp

@@ -183,6 +183,7 @@ namespace omath::hud
         void dispatch(const widget::SnapLine& snap_line);
         void dispatch(const widget::ScanMarker& scan_marker);
         void dispatch(const widget::AimDot& aim_dot);
+        void dispatch(const widget::ProjectileAim& proj_widget);
         void draw_progress_ring(const Vector2<float>& center, const widget::ProgressRing& ring);
         void draw_outlined_text(const Vector2<float>& position, const Color& color, const std::string_view& text);
         void draw_dashed_line(const Vector2<float>& from, const Vector2<float>& to, const Color& color, float dash_len,

include/omath/hud/entity_overlay_widgets.hpp

@@ -71,6 +71,20 @@ namespace omath::hud::widget
         Color color;
         float radius = 3.f;
     };
+    struct ProjectileAim
+    {
+        enum class Figure
+        {
+            CIRCLE,
+            SQUARE,
+        };
+        Vector2<float> position;
+        Color color;
+        float size = 3.f;
+        float line_size = 1.f;
+        Figure figure = Figure::SQUARE;
+    };
+
 
     // ── Side-agnostic widgets (used inside XxxSide containers) ────────────────
 

source/hud/entity_overlay.cpp

@@ -641,6 +641,26 @@ namespace omath::hud
     {
         m_renderer->add_filled_circle(aim_dot.position, aim_dot.radius, aim_dot.color);
     }
+    void EntityOverlay::dispatch(const widget::ProjectileAim& proj_widget)
+    {
+        const auto box_width = std::abs(m_canvas.top_right_corner.x - m_canvas.top_left_corner.x);
+        const auto box_height = std::abs(m_canvas.bottom_left_corner.y - m_canvas.top_left_corner.y);
+
+        const auto box_center = m_canvas.top_left_corner+Vector2{box_width, box_height} / 2.f;
+
+        m_renderer->add_line(box_center, proj_widget.position, proj_widget.color, proj_widget.line_size);
+
+        if (proj_widget.figure == widget::ProjectileAim::Figure::CIRCLE)
+        {
+            m_renderer->add_filled_circle(proj_widget.position, proj_widget.size, proj_widget.color);
+        }
+        else if (proj_widget.figure == widget::ProjectileAim::Figure::SQUARE)
+        {
+            const auto box_min = proj_widget.position - Vector2{proj_widget.size, proj_widget.size} / 2.f;
+            const auto box_max = proj_widget.position + Vector2{proj_widget.size, proj_widget.size} / 2.f;
+            m_renderer->add_filled_rectangle(box_min, box_max, proj_widget.color);
+        }
+    }
 
     void EntityOverlay::draw_progress_ring(const Vector2<float>& center, const widget::ProgressRing& ring)
     {