sar_sensitivity

docs/cvars.md

@@ -501,6 +501,7 @@
 |sar_scrollspeed_x|0|Scroll speed HUD x offset.|
 |sar_scrollspeed_y|210|Scroll speed HUD y offset.|
 |sar_seamshot_finder|0|Enables or disables seamshot finder overlay.|
+|sar_sensitivity|cmd|sar_sensitivity \<cm\|in> \<distance> \<dpi> - changes the sensitivity to match the amount of distance the mouse needs to travel to turn one whole 360.|
 |sar_session|cmd|sar_session - prints the current tick of the server since it has loaded|
 |sar_show_entinp|0|Print all entity inputs to console.|
 |sar_skiptodemo|cmd|sar_skiptodemo \<demoname> - skip demos in demo queue to this demo|

src/Features/Sensitivity.cpp

@@ -0,0 +1,67 @@
+#include "Command.hpp"
+#include "Modules/Engine.hpp"
+#include "Variable.hpp"
+
+
+#ifdef _WIN32
+#	include <winuser.h>
+#endif
+
+// Liquipedia Counterstrike https://liquipedia.net/counterstrike/Mouse_Settings#Windows_Sensitivity
+const float multiplierEnhancedOff[] = {0.03125, 0.0625, 0.125, 0.25, 0.375, 0.5, 0.625, 0.75, 0.875, 1, 1.25, 1.5, 1.75, 2, 2.25, 2.5, 2.75, 3, 3.25, 3.5};
+
+CON_COMMAND(sar_sensitivity, "sar_sensitivity <cm|in> <distance> <dpi> - changes the sensitivity to match the amount of distance the mouse needs to travel to turn one whole 360.\n") {
+	double distanceConstant;
+	if (args.ArgC() == 4) {
+		if (!strcmp(args[1], "cm")) {
+			distanceConstant = 914.4;
+		} else if (!strcmp(args[1], "in")) {
+			distanceConstant = 360;
+		} else {
+			return console->Print("Cannot parse unit entered, options are cm or in\n");
+		}
+	} else {
+		return console->Print(sar_sensitivity.ThisPtr()->m_pszHelpString);
+	}
+
+	static auto sensitivity = Variable("sensitivity");
+	static auto m_yaw = Variable("m_yaw");
+	static auto m_rawinput = Variable("m_rawinput");
+
+	double distance = std::atof(args[2]);
+	double dpi = std::atof(args[3]);
+
+
+	if (!m_rawinput.GetBool()) {
+#ifdef _WIN32
+		// whole thing relies on the m_rawinput if that shit is on then it do not matter
+		// first two values of this area are lowkey not useful in this situation i think we just need the last one
+		int getMouseInfo[3];
+		int winMouseSens;
+		bool mouseAccel = SystemParametersInfo(SPI_GETMOUSE, 0, &getMouseInfo, 0);
+		bool mouseSpeed = SystemParametersInfo(SPI_GETMOUSESPEED, 0, &winMouseSens, 0);
+
+		if (mouseAccel && mouseSpeed) {
+			if (getMouseInfo[2]) {
+				/* if true then Enhanced Pointer Performance is on.
+				 * conveniently the multiplier when this is the case is just 1/10th the setting
+				 * AS FAR AS I AM AWARE: this is how it essentially works, because at default setting (10, or 1.0)
+				 * every dot the cursor is moved 1 pixel
+				 * and such at non default values it is getting scaled
+				 */
+				dpi *= winMouseSens / 10.0f;
+			} else {
+				// otherwise its easier to just look it up in this array
+				dpi *= multiplierEnhancedOff[winMouseSens - 1];
+			}
+		} else {
+			console->Print("Could not retrieve windows mouse settings, sens may not be calculated correctly\n");
+		}
+
+#else
+		console->Print("m_rawinput 0 may make sar_sensitivity inaccurate on linux\n");
+#endif
+	}
+	double new_sens = distanceConstant / (distance * (dpi * m_yaw.GetFloat()));
+	sensitivity.SetValue((float)new_sens);
+}