Only strafe ever N calls to slideMove

source/FPSciApp.cpp

@@ -619,6 +619,8 @@ void FPSciApp::initPlayer(const shared_ptr<FpsConfig> config, const bool respawn
 	player->height = &config->player.height;
 	player->crouchHeight = &config->player.crouchHeight;
 
+	player->strafeDivider = &config->render.strafeDivider;
+
 	// Respawn player
 	if (respawn) player->respawn();
 	updateMouseSensitivity();

source/FpsConfig.cpp

@@ -100,6 +100,8 @@ void RenderConfig::load(FPSciAnyTableReader reader, int settingsVersion) {
 		reader.getIfPresent("frameDelay", frameDelay);
 		reader.getIfPresent("frameTimeArray", frameTimeArray);
 		reader.getIfPresent("frameTimeRandomize", frameTimeRandomize);
+
+		reader.getIfPresent("strafeDivider", strafeDivider);
 
 		reader.getIfPresent("frameTimeMode", frameTimeMode);
 		frameTimeMode = toLower(frameTimeMode);	// Convert to lower case
@@ -169,7 +171,9 @@ Any RenderConfig::addToAny(Any a, bool forceAll) const {
 	if (forceAll || def.samplerPrecomposite != samplerPrecomposite)	a["samplerPrecomposite"] = samplerPrecomposite;
 	if (forceAll || def.samplerComposite != samplerComposite)	a["samplerComposite"] = samplerComposite;
 	if (forceAll || def.samplerFinal != samplerFinal)			a["samplerFinal"] = samplerFinal;
-
+
+	if (forceAll || def.strafeDivider != strafeDivider)			a["strafeDivider"] = strafeDivider;
+
 	return a;
 }
 

source/FpsConfig.h

@@ -29,6 +29,7 @@ class RenderConfig {
 	// Rendering parameters
 	float           frameRate = 1000.0f;						///< Target (goal) frame rate (in Hz)
 	int             frameDelay = 0;								///< Integer frame delay (in frames)
+	int				strafeDivider = 1;							///< Integer number of frames between move updates
 	Array<float>	frameTimeArray = { };						///< Array of target frame times (in seconds)
 	bool			frameTimeRandomize = false;					///< Whether to choose a sequential or random item from frameTimeArray
 	String			frameTimeMode = "always";					///< Mode to use for frame time selection (can be "always", "taskOnly", or "restartWithTask", case insensitive)

source/GuiElements.cpp

@@ -228,6 +228,10 @@ RenderControls::RenderControls(FPSciApp* app, FpsConfig& config, bool& drawFps,
 		auto c = framePane->addNumberBox("Framerate", &(config.render.frameRate), "fps", GuiTheme::LINEAR_SLIDER, minFrameRate, maxFrameRate, 1.0f);
 		c->setWidth(width*0.95f);
 	} framePane->endRow();
+	framePane->beginRow(); {
+		auto c = framePane->addNumberBox("Strafe every", &(config.render.strafeDivider), "frames", GuiTheme::LINEAR_SLIDER, 1, 360, 1);
+		c->setWidth(width * 0.95f);
+	} framePane->endRow();
 	framePane->beginRow(); {
 		auto c = framePane->addNumberBox("Display Lag", &(config.render.frameDelay), "f", GuiTheme::LINEAR_SLIDER, 0, maxFrameDelay);
 		c->setWidth(width*0.95f);

source/PlayerEntity.cpp

@@ -128,7 +128,13 @@ void PlayerEntity::onSimulation(SimTime absoluteTime, SimTime deltaTime) {
     }
     simulatePose(absoluteTime, deltaTime);
 
+	static G3D::SimTime slideDeltaTime = 0.;
+	static int callCount = 1;
+
 	if (!isNaN(deltaTime)) {
+		// Accumulate for occasional slide only
+		slideDeltaTime += deltaTime;
+
 		// Apply rotation first
 		m_yawRadians += m_desiredYawDelta;													// Integrate the yaw change into heading
 		m_yawRadians = mod1((m_yawRadians) / (2 * pif())) * 2 * pif();					// Keep the user's heading value in the [0,2pi) range		
@@ -138,9 +144,16 @@ void PlayerEntity::onSimulation(SimTime absoluteTime, SimTime deltaTime) {
 		// Set player frame rotation based on the heading and tilt
 		m_frame.rotation = Matrix3::fromAxisAngle(Vector3::unitY(), -m_yawRadians) * Matrix3::fromAxisAngle(Vector3::unitX(), m_pitchRadians);
 
-		// Translation update - in direction after rotating
-		if (m_motionEnable) {
-			m_inContact = slideMove(deltaTime);
+		if (strafeDivider && callCount >= *strafeDivider) {
+			// Translation update - in direction after rotating
+			if (m_motionEnable) {
+				m_inContact = slideMove(slideDeltaTime);
+			}
+			slideDeltaTime = 0.;
+			callCount = 1;
+		}
+		else {
+			callCount += 1;
 		}
 
 		// Check for "off map" condition and reset position here...

source/PlayerEntity.h

@@ -46,6 +46,8 @@ class PlayerEntity : public VisibleEntity {
 	float			m_cameraRadiansPerMouseDot;		///< Player mouse sensitivity
 	Vector2			turnScale;				///< Player asymmetric mouse scaler - typically near 1:1
 
+    int*            strafeDivider;              ///< Integer how many frames to count between updating strafing
+
 	float*			moveRate = nullptr;	        ///< Player movement rate (m/s)
 	Vector2*		moveScale = nullptr;	    ///< Player X/Y movement scale vector (interpreted as unit vector)
 	Array<bool>*	axisLock = nullptr;		    ///< World-space axis lock