Add no-peeps and no-sprites options

src/openrct2/cmdline/ScreenshotCommands.cpp

@@ -21,7 +21,9 @@ static ScreenshotOptions options;
 
 static const CommandLineOptionDefinition ScreenshotOptionsDef[]
 {
-    { CMDLINE_TYPE_INTEGER, &options.weather,     NAC, "weather",   "weather to be used (0 = default, 1 = sunny, ..., 6 = thunder)." },
+    { CMDLINE_TYPE_INTEGER, &options.weather,       NAC, "weather",     "weather to be used (0 = default, 1 = sunny, ..., 6 = thunder)." },
+    { CMDLINE_TYPE_SWITCH,  &options.hide_guests,   NAC, "no-peeps",    "hide peeps" },
+    { CMDLINE_TYPE_SWITCH,  &options.hide_sprites,  NAC, "no-sprites",  "hide all sprites (e.g. balloons, vehicles, guests)" },
     OptionTableEnd
 };
 

src/openrct2/interface/Screenshot.cpp

@@ -522,6 +522,16 @@ sint32 cmdline_for_screenshot(const char * * argv, sint32 argc, ScreenshotOption
         dpi.zoom_level = 0;
         dpi.bits = (uint8 *)malloc(dpi.width * dpi.height);
 
+        if (options->hide_guests)
+        {
+            viewport.flags |= VIEWPORT_FLAG_INVISIBLE_PEEPS;
+        }
+
+        if (options->hide_sprites)
+        {
+            viewport.flags |= VIEWPORT_FLAG_INVISIBLE_SPRITES;
+        }
+
         viewport_render(&dpi, &viewport, 0, 0, viewport.width, viewport.height);
 
         rct_palette renderedPalette;

src/openrct2/interface/Screenshot.h

@@ -29,6 +29,8 @@ extern "C"
     struct ScreenshotOptions
     {
         sint32 weather = 0;
+        bool hide_guests = false;
+        bool hide_sprites = false;
     };
 
     void screenshot_check();