update server side sprinting

Author: aesthetic0001

lib/plugins/physics.js

@@ -124,6 +124,7 @@ function inject(bot, {physicsEnabled, maxCatchupTicks}) {
 
     function tickPhysics(now) {
         if (bot.blockAt(bot.entity.position) == null) return // check if chunk is unloaded
+        bot.emit('physicsTickBegin')
         if (bot.physicsEnabled && shouldUsePhysics) {
             if (typeof bot.entity.yawDegrees !== 'number') {
                 bot.entity.yawDegrees = 0
@@ -132,12 +133,10 @@ function inject(bot, {physicsEnabled, maxCatchupTicks}) {
             physics.simulatePlayer(new PlayerState(bot, controlState, lastSent), world).apply(bot)
             updatePosition(now)
             bot.emit('physicsTick')
-            bot.emit('physicTick') // Deprecated, only exists to support old plugins. May be removed in the future
         }
         if (bot.version === "1.21.5") {
             bot._client.write("tick_end")
         }
-        bot.emit('physicsTickEnd')
     }
 
     function cleanup() {
@@ -202,13 +201,18 @@ function inject(bot, {physicsEnabled, maxCatchupTicks}) {
         // Only send updates for 20 ticks after death
         if (isEntityRemoved()) return
 
-        if (lastSent.sprintState !== controlState.sprint) {
+        const forward = (controlState.forward ? 1 : 0) - (controlState.back ? 1 : 0)
+        const isSprintingApplicable = forward > 0 && !bot.entity.isCollidedHorizontally && !controlState.sneak
+        // treat controlState.sprint as a request (sprint held), not necessary to fulfill it
+        const actualSprint = isSprintingApplicable && controlState.sprint
+
+        if (lastSent.sprintState !== actualSprint) {
             bot._client.write('entity_action', {
                 entityId: bot.entity.id,
-                actionId: controlState.sprint ? 3 : 4,
+                actionId: actualSprint ? 3 : 4,
                 jumpBoost: 0,
             });
-            lastSent.sprintState = controlState.sprint;
+            lastSent.sprintState = actualSprint;
         }
 
         if (lastSent.sneakState !== controlState.sneak) {