Fix long standing jump bug & movement lag based on FPS

README.md

@@ -110,6 +110,7 @@ This means that plugins that do binary code analysis (Orpheu for example) probab
 | mp_hostages_rescued_ratio          | 1.0     | 0.0 | 1.0          | Ratio of hostages rescued to win the round. |
 | mp_legacy_vehicle_block            | 1       | 0   | 1            | Legacy func_vehicle behavior when blocked by another entity.<br/>`0` New behavior <br/>`1` Legacy behavior |
 | mp_dying_time                      | 3.0     | 0.0 | -            | Time for switch to free observing after death.<br/>`0` - disable spectating around death.<br/>`>0.00001` - time delay to start spectate.<br/>`NOTE`: The countdown starts when the player’s death animation is finished.|
+| sv_legacy_movement                 | 0       | 0   | 1            | Legacy movement. The new one fixes FPS based jump and movement.<br/>`0` Legacy behaviour <br/>`1` New behaviour |
 </details>
 
 ## How to install zBot for CS 1.6?

dist/game.cfg

@@ -529,3 +529,10 @@ mp_legacy_vehicle_block "1"
 //
 // Default value: "3.0"
 mp_dying_time "3.0"
+
+// Legacy movement. The new one fixes FPS based jump and movement.
+// 0 - Legacy behavior
+// 1 - New behavior
+//
+// Default value: "0"
+sv_legacy_movement "0"

regamedll/dlls/game.cpp

@@ -165,6 +165,7 @@ cvar_t sv_autobunnyhopping               = { "sv_autobunnyhopping", "0", 0, 0.0f
 cvar_t sv_enablebunnyhopping             = { "sv_enablebunnyhopping", "0", 0, 0.0f, nullptr };
 cvar_t plant_c4_anywhere                 = { "mp_plant_c4_anywhere", "0", 0, 0.0f, nullptr };
 cvar_t give_c4_frags                     = { "mp_give_c4_frags", "3", 0, 3.0f, nullptr };
+cvar_t sv_legacy_movement                = { "sv_legacy_movement", "0", 0, 0.0f, nullptr };
 
 cvar_t hostages_rescued_ratio = { "mp_hostages_rescued_ratio", "1.0", 0, 1.0f, nullptr };
 
@@ -415,6 +416,7 @@ void EXT_FUNC GameDLLInit()
 	CVAR_REGISTER(&sv_enablebunnyhopping);
 	CVAR_REGISTER(&plant_c4_anywhere);
 	CVAR_REGISTER(&give_c4_frags);
+	CVAR_REGISTER(&sv_legacy_movement);
 
 	CVAR_REGISTER(&hostages_rescued_ratio);
 

regamedll/dlls/game.h

@@ -194,6 +194,7 @@ extern cvar_t give_c4_frags;
 extern cvar_t hostages_rescued_ratio;
 extern cvar_t legacy_vehicle_block;
 extern cvar_t dying_time;
+extern cvar_t sv_legacy_movement;
 
 #endif
 

regamedll/pm_shared/pm_shared.cpp

@@ -2775,43 +2775,59 @@ void PM_CheckParameters()
 
 void PM_ReduceTimers()
 {
-	if (pmove->flTimeStepSound > 0)
+	float frame_msec = pmove->cmd.msec;
+
+	if (pmove->flTimeStepSound > 0.0)
 	{
-		pmove->flTimeStepSound -= pmove->cmd.msec;
+		pmove->flTimeStepSound -= frame_msec;
 
-		if (pmove->flTimeStepSound < 0)
+		if (pmove->flTimeStepSound < 0.0)
 		{
-			pmove->flTimeStepSound = 0;
+			pmove->flTimeStepSound = 0.0;
 		}
 	}
+
+#ifdef REGAMEDLL_ADD
+	if(sv_legacy_movement.value > 0.0)
+	{
+		if(frame_msec < 10.0)
+		{
+			frame_msec *= 1.65f;
+		}
+		else
+		{
+			frame_msec *= 1.45f;
+		}
+	}
+#endif
 
-	if (pmove->flDuckTime > 0)
+	if (pmove->flDuckTime > 0.0)
 	{
-		pmove->flDuckTime -= pmove->cmd.msec;
+		pmove->flDuckTime -= frame_msec;
 
-		if (pmove->flDuckTime < 0)
+		if (pmove->flDuckTime < 0.0)
 		{
-			pmove->flDuckTime = 0;
+			pmove->flDuckTime = 0.0;
 		}
 	}
 
-	if (pmove->flSwimTime > 0)
+	if (pmove->flSwimTime > 0.0)
 	{
-		pmove->flSwimTime -= pmove->cmd.msec;
+		pmove->flSwimTime -= frame_msec;
 
-		if (pmove->flSwimTime < 0)
+		if (pmove->flSwimTime < 0.0)
 		{
-			pmove->flSwimTime = 0;
+			pmove->flSwimTime = 0.0;
 		}
 	}
 
 	if (pmove->fuser2 > 0.0)
 	{
-		pmove->fuser2 -= pmove->cmd.msec;
+		pmove->fuser2 -= frame_msec;
 
 		if (pmove->fuser2 < 0.0)
 		{
-			pmove->fuser2 = 0;
+			pmove->fuser2 = 0.0;
 		}
 	}
 }