Fix find mode always reporting 0 particles found

Somehow foundElements (now renamed to foundParticles) made it into RendererSettings in 820f44a716, even though it's actually a result of the rendering process. It is now extracted the same way as the resulting frame.

src/graphics/Renderer.cpp

@@ -262,7 +262,7 @@ void Renderer::render_parts()
 					BlendPixel({ nx, ny }, 0x646464_rgb .WithAlpha(80));
 			}
 	}
-	foundElements = 0;
+	foundParticles = 0;
 	for(i = 0; i<=sim->parts_lastActiveIndex; i++) {
 		if (sim->parts[i].type && sim->parts[i].type >= 0 && sim->parts[i].type < PT_NUM) {
 			t = sim->parts[i].type;
@@ -483,7 +483,7 @@ void Renderer::render_parts()
 					{
 						colr = firer = 255;
 						colg = fireg = colb = fireb = 0;
-						foundElements++;
+						foundParticles++;
 					}
 					else
 					{

src/graphics/Renderer.h

@@ -32,6 +32,7 @@ class Renderer : private RendererSettings, public RasterDrawMethods<Renderer>
 	RendererFrame video;
 	std::array<pixel, WINDOW.X * RES.Y> persistentVideo;
 	RendererFrame warpVideo;
+	int foundParticles = 0;
 
 	Rect<int> GetClipRect() const
 	{
@@ -72,6 +73,11 @@ public:
 		return video;
 	}
 
+	int GetFoundParticles() const
+	{
+		return foundParticles;
+	}
+
 	const RenderableSimulation *sim = nullptr;
 
 	struct GradientStop

src/graphics/RendererSettings.h

@@ -21,7 +21,6 @@ struct RendererSettings
 	};
 	DecorationLevel decorationLevel = decorationEnabled;
 	bool debugLines = false;
-	int foundElements = 0;
 	ui::Point mousePos = { 0, 0 };
 	int gridSize = 0;
 	float fireIntensity = 1;

src/gui/game/GameView.cpp

@@ -2159,6 +2159,7 @@ void GameView::OnDraw()
 	{
 		StartRendererThread();
 		WaitForRendererThread();
+		foundParticles = ren->GetFoundParticles();
 		*rendererThreadResult = ren->GetVideo();
 		rendererFrame = rendererThreadResult.get();
 		DispatchRendererThread();
@@ -2168,6 +2169,7 @@ void GameView::OnDraw()
 		PauseRendererThread();
 		ren->ApplySettings(*rendererSettings);
 		RenderSimulation(*sim, true);
+		foundParticles = ren->GetFoundParticles();
 		rendererFrame = &ren->GetVideo();
 	}
 
@@ -2514,7 +2516,7 @@ void GameView::OnDraw()
 		if (showDebug)
 		{
 			if (rendererSettings->findingElement)
-				fpsInfo << " Parts: " << rendererSettings->foundElements << "/" << sample.NumParts;
+				fpsInfo << " Parts: " << foundParticles << "/" << sample.NumParts;
 			else
 				fpsInfo << " Parts: " << sample.NumParts;
 		}

src/gui/game/GameView.h

@@ -172,6 +172,7 @@ private:
 	void DispatchRendererThread();
 	std::unique_ptr<RenderableSimulation> rendererThreadSim;
 	std::unique_ptr<RendererFrame> rendererThreadResult;
+	int foundParticles = 0;
 	const RendererFrame *rendererFrame = nullptr;
 
 public: