Add mouse_sensitivity option

minetest.conf.example

@@ -151,6 +151,8 @@
 #crosshair_color = (255,255,255)
 # Cross alpha (opaqueness, between 0 and 255)
 #crosshair_alpha = 255
+# Sensitivity multiplier
+#mouse_sensitivity = 0.2
 # Sound settings
 #enable_sound = true
 #sound_volume = 0.7

src/defaultsettings.cpp

@@ -117,6 +117,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("selectionbox_color", "(0,0,0)");
 	settings->setDefault("crosshair_color", "(255,255,255)");
 	settings->setDefault("crosshair_alpha", "255");
+	settings->setDefault("mouse_sensitivity", "0.2");
 	settings->setDefault("enable_sound", "true");
 	settings->setDefault("sound_volume", "0.8");
 	settings->setDefault("desynchronize_mapblock_texture_animation", "true");

src/game.cpp

@@ -2061,7 +2061,8 @@ void the_game(
 				if(input->isKeyDown(irr::KEY_RIGHT))
 					dx += dtime * keyspeed;*/
 				
-				float d = 0.2;
+				float d = g_settings->getFloat("mouse_sensitivity");
+				d = rangelim(d, 0.01, 100.0);
 				camera_yaw -= dx*d;
 				camera_pitch += dy*d;
 				if(camera_pitch < -89.5) camera_pitch = -89.5;