working on a more versitile fps counter, but need to move to the newest imgui first

CMakeLists.txt

@@ -62,7 +62,7 @@ file(GLOB_RECURSE KERNELS "kernels/*.cl")
 file(GLOB_RECURSE SHADERS "shaders/*.vert" "shaders/*.tesc" "shaders/*.tese" "shaders/*.geom" "shaders/*.frag" "shaders/*.comp")
 
 
-add_executable(${PNAME} ${SOURCES} ${HEADERS} ${KERNELS} ${SHADERS})
+add_executable(${PNAME} ${SOURCES} ${HEADERS} ${KERNELS} ${SHADERS} include/imgui/imgui-multilines.hpp)
 
 # Follow the sub directory structure to add sub-filters in VS
 # Gotta do it one by one unfortunately

include/Camera.h

@@ -65,8 +65,8 @@ public:
 
 private:
 
-	float friction_coefficient = 0.001f;
+	float friction_coefficient = 0.1f;
-	float default_impulse = 0.1f;
+	float default_impulse = 0.01f;
 
 	// 3D vector
 	sf::Vector3f movement;

include/imgui/imgui-multilines.hpp

@@ -0,0 +1,186 @@
+
+
+#include "imgui.h"
+#include "imgui_internal.h"
+
+
+namespace ImGui {
+
+    static ImU32 InvertColorU32(ImU32 in)
+    {
+        ImVec4 in4 = ColorConvertU32ToFloat4(in);
+        in4.x = 1.f - in4.x;
+        in4.y = 1.f - in4.y;
+        in4.z = 1.f - in4.z;
+        return GetColorU32(in4);
+    }
+
+    static void PlotMultiEx(
+            ImGuiPlotType plot_type,
+            const char* label,
+            int num_datas,
+            const char** names,
+            const ImColor* colors,
+            float(*getter)(const void* data, int idx),
+            const void * const * datas,
+            int values_count,
+            float scale_min,
+            float scale_max,
+            ImVec2 graph_size)
+    {
+    const int values_offset = 0;
+
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+
+    const ImVec2 label_size = ImGui::CalcTextSize(label, NULL, true);
+    if (graph_size.x == 0.0f)
+        graph_size.x = CalcItemWidth();
+    if (graph_size.y == 0.0f)
+        graph_size.y = label_size.y + (style.FramePadding.y * 2);
+
+    const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(graph_size.x, graph_size.y));
+    const ImRect inner_bb(frame_bb.Min + style.FramePadding, frame_bb.Max - style.FramePadding);
+    const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0));
+    ItemSize(total_bb, style.FramePadding.y);
+    if (!ItemAdd(total_bb, NULL))
+        return;
+
+    // Determine scale from values if not specified
+    if (scale_min == FLT_MAX || scale_max == FLT_MAX)
+    {
+        float v_min = FLT_MAX;
+        float v_max = -FLT_MAX;
+        for (int data_idx = 0; data_idx < num_datas; ++data_idx)
+        {
+            for (int i = 0; i < values_count; i++)
+            {
+                const float v = getter(datas[data_idx], i);
+                v_min = ImMin(v_min, v);
+                v_max = ImMax(v_max, v);
+            }
+        }
+        if (scale_min == FLT_MAX)
+            scale_min = v_min;
+        if (scale_max == FLT_MAX)
+            scale_max = v_max;
+    }
+
+    RenderFrame(frame_bb.Min, frame_bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
+
+    int res_w = ImMin((int) graph_size.x, values_count) + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
+    int item_count = values_count + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
+
+    // Tooltip on hover
+    int v_hovered = -1;
+    if (IsHovered(inner_bb, 0))
+    {
+        const float t = ImClamp((g.IO.MousePos.x - inner_bb.Min.x) / (inner_bb.Max.x - inner_bb.Min.x), 0.0f, 0.9999f);
+        const int v_idx = (int) (t * item_count);
+        IM_ASSERT(v_idx >= 0 && v_idx < values_count);
+
+        // std::string toolTip;
+        ImGui::BeginTooltip();
+        const int idx0 = (v_idx + values_offset) % values_count;
+        if (plot_type == ImGuiPlotType_Lines)
+        {
+            const int idx1 = (v_idx + 1 + values_offset) % values_count;
+            Text("%8d %8d | Name", v_idx, v_idx+1);
+            for (int dataIdx = 0; dataIdx < num_datas; ++dataIdx)
+            {
+                const float v0 = getter(datas[dataIdx], idx0);
+                const float v1 = getter(datas[dataIdx], idx1);
+                TextColored(colors[dataIdx], "%8.4g %8.4g | %s", v0, v1, names[dataIdx]);
+            }
+        }
+        else if (plot_type == ImGuiPlotType_Histogram)
+        {
+            for (int dataIdx = 0; dataIdx < num_datas; ++dataIdx)
+            {
+                const float v0 = getter(datas[dataIdx], idx0);
+                TextColored(colors[dataIdx], "%d: %8.4g | %s", v_idx, v0, names[dataIdx]);
+            }
+        }
+        ImGui::EndTooltip();
+        v_hovered = v_idx;
+    }
+
+    for (int data_idx = 0; data_idx < num_datas; ++data_idx)
+    {
+        const float t_step = 1.0f / (float) res_w;
+
+        float v0 = getter(datas[data_idx], (0 + values_offset) % values_count);
+        float t0 = 0.0f;
+        ImVec2 tp0 = ImVec2(t0, 1.0f - ImSaturate((v0 - scale_min) / (scale_max - scale_min)));    // Point in the normalized space of our target rectangle
+
+        const ImU32 col_base = colors[data_idx];
+        const ImU32 col_hovered = InvertColorU32(colors[data_idx]);
+
+        //const ImU32 col_base = GetColorU32((plot_type == ImGuiPlotType_Lines) ? ImGuiCol_PlotLines : ImGuiCol_PlotHistogram);
+        //const ImU32 col_hovered = GetColorU32((plot_type == ImGuiPlotType_Lines) ? ImGuiCol_PlotLinesHovered : ImGuiCol_PlotHistogramHovered);
+
+        for (int n = 0; n < res_w; n++)
+        {
+            const float t1 = t0 + t_step;
+            const int v1_idx = (int) (t0 * item_count + 0.5f);
+            IM_ASSERT(v1_idx >= 0 && v1_idx < values_count);
+            const float v1 = getter(datas[data_idx], (v1_idx + values_offset + 1) % values_count);
+            const ImVec2 tp1 = ImVec2(t1, 1.0f - ImSaturate((v1 - scale_min) / (scale_max - scale_min)));
+
+            // NB: Draw calls are merged together by the DrawList system. Still, we should render our batch are lower level to save a bit of CPU.
+            ImVec2 pos0 = ImLerp(inner_bb.Min, inner_bb.Max, tp0);
+            ImVec2 pos1 = ImLerp(inner_bb.Min, inner_bb.Max, (plot_type == ImGuiPlotType_Lines) ? tp1 : ImVec2(tp1.x, 1.0f));
+            if (plot_type == ImGuiPlotType_Lines)
+            {
+                window->DrawList->AddLine(pos0, pos1, v_hovered == v1_idx ? col_hovered : col_base);
+            }
+            else if (plot_type == ImGuiPlotType_Histogram)
+            {
+                if (pos1.x >= pos0.x + 2.0f)
+                    pos1.x -= 1.0f;
+                window->DrawList->AddRectFilled(pos0, pos1, v_hovered == v1_idx ? col_hovered : col_base);
+            }
+
+            t0 = t1;
+            tp0 = tp1;
+        }
+    }
+
+    RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label);
+}
+
+void PlotMultiLines(
+        const char* label,
+        int num_datas,
+        const char** names,
+        const ImColor* colors,
+        float(*getter)(const void* data, int idx),
+        const void * const * datas,
+        int values_count,
+        float scale_min,
+        float scale_max,
+        ImVec2 graph_size)
+{
+    PlotMultiEx(ImGuiPlotType_Lines, label, num_datas, names, colors, getter, datas, values_count, scale_min, scale_max, graph_size);
+}
+
+void PlotMultiHistograms(
+        const char* label,
+        int num_hists,
+        const char** names,
+        const ImColor* colors,
+        float(*getter)(const void* data, int idx),
+        const void * const * datas,
+        int values_count,
+        float scale_min,
+        float scale_max,
+        ImVec2 graph_size)
+{
+    PlotMultiEx(ImGuiPlotType_Histogram, label, num_hists, names, colors, getter, datas, values_count, scale_min, scale_max, graph_size);
+}
+
+} // namespace ImGui

include/util.hpp

@@ -18,7 +18,15 @@ const float  PI_F = 3.14159265358979f;
 
 struct fps_counter {
 public:
-	fps_counter() {};
+	fps_counter() {
+
+    };
+
+    ~fps_counter() {
+        for (auto i: fps_vectors){
+            delete[] i;
+        }
+    };
 
 	void frame(double delta_time) {
 
@@ -29,27 +37,36 @@ public:
 		}
 		frame_count++;
 		fps_average += (delta_time - fps_average) / frame_count;
+        instant_fps = delta_time;
 	}
 
 	void draw() {
 
-		if (arr_pos == 200)
+		if (arr_pos == 1000)
 			arr_pos = 0;
 
-		fps_array[arr_pos] = static_cast<float>(1.0 / fps_average);
+		fps_array[arr_pos] = static_cast<float>(1.0 / instant_fps);
 		arr_pos++;
 
 		ImGui::Begin("Performance");
-		ImGui::PlotLines("FPS", fps_array, 200, 0, std::to_string(1.0 / fps_average).c_str(), 0.0f, 150.0f, ImVec2(200, 80));
+		ImVec2 wh = ImGui::GetContentRegionAvail();
+		ImGui::PlotLines("FPS", fps_array, 1000, 0,
+						 std::to_string(1.0 / fps_average).c_str(),
+						 0.0f, 150.0f, wh);
 		ImGui::End();
 	}
 
 private:
 
-	float fps_array[200]{60};
+    const unsigned int FPS_ARRAY_LENGTH = 1000;
+    std::vector<float*> fps_vectors;
+
+
+	float fps_array[1000]{60};
     int arr_pos = 0;
 
-	int frame_count = 0;
+	double instant_fps = 0;
+    double frame_count = 0;
 	double fps_average = 0;
 
 };

src/Camera.cpp

@@ -76,6 +76,47 @@ int Camera::update(double delta_time) {
 	
 	double multiplier = 80;
 
+
+//
+//
+//	if (movement.x < 0)
+//	{
+//		movement.x = std::min( 0.0f, movement.x + 0.01f);
+//	}
+//	else if (movement.x > 0)
+//	{
+//		movement.x = std::min( 0.0f, movement.x - 0.01f);
+//	}
+//
+//	if (movement.y < 0)
+//	{
+//		movement.y = std::min( 0.0f, movement.y + 0.01f);
+//	}
+//	else if (movement.y > 0)
+//	{
+//		movement.y = std::min( 0.0f, movement.y - 0.01f);
+//	}
+//
+//
+//
+//
+////	if (movement.x > 0)
+////		movement.x -= friction_coefficient * delta_time * multiplier;
+////	else if (movement.x < 0)
+////		movement.x += friction_coefficient * delta_time * multiplier;
+////
+////	if (movement.y > 0)
+////		movement.y -= friction_coefficient * delta_time * multiplier;
+////	else if (movement.y < 0)
+////		movement.y += friction_coefficient * delta_time * multiplier;
+////
+////	if (abs(movement.x) > 0.02f)
+////		movement.x = ((movement.x > 0) - (movement.x < 0)) * 0.02f;
+////	if (abs(movement.y) > 0.02f)
+////		movement.y = ((movement.y > 0) - (movement.y < 0)) * 0.02f;
+//	//movement.x =
+//	//movement.y = abs(movement.y) - -((movement.y > 0) - (movement.y < 0)) * friction_coefficient * delta_time * multiplier;
+
 	position.x += static_cast<float>(movement.x * delta_time * multiplier);
 	position.y += static_cast<float>(movement.y * delta_time * multiplier);
 	position.z += static_cast<float>(movement.z * delta_time * multiplier);
@@ -214,9 +255,12 @@ void Camera::render_gui() {
 
 	ImGui::Text("Camera Inclination");
 	ImGui::Text("Camera Azimuth");
-	ImGui::Text("Camera Pos_X");
+	ImGui::Text("Camera Pos X");
-	ImGui::Text("Camera Poz_Y");
+	ImGui::Text("Camera Pos Y");
-	ImGui::Text("Camera Poz_Z");
+	ImGui::Text("Camera Pos Z");
+	ImGui::Text("Camera Accel X");
+	ImGui::Text("Camera Accel Y");
+	ImGui::Text("Camera Accel Z");
 
 	ImGui::NextColumn();
 
@@ -225,6 +269,9 @@ void Camera::render_gui() {
 	ImGui::Text("%f", position.x);
 	ImGui::Text("%f", position.y);
 	ImGui::Text("%f", position.z);
+	ImGui::Text("%f", movement.x);
+	ImGui::Text("%f", movement.y);
+	ImGui::Text("%f", movement.z);
 
 	ImGui::Separator();
 
@@ -232,6 +279,10 @@ void Camera::render_gui() {
 
 	ImGui::SliderFloat("Camera Speed", &default_impulse, 0, 4);
 
+	ImGui::Separator();
+
+	ImGui::SliderFloat("Camera Friction", &friction_coefficient, 0, 1);
+
 	ImGui::End();
 }