fix game

cmd/client/prediction.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"git.zb-server.de/ZB-Server/EscapeFromTeacher/pkg/config"
 	"git.zb-server.de/ZB-Server/EscapeFromTeacher/pkg/game"
 	"git.zb-server.de/ZB-Server/EscapeFromTeacher/pkg/physics"
 )
@@ -31,6 +32,17 @@ func (g *Game) ApplyInput(input InputState) {
 		OnWall:   g.predictedOnWall,
 	}
 
+	// Double Jump: vor der Physik anwenden (1:1 wie Server)
+	if input.Jump && !g.predictedGround && g.predictedHasDoubleJump && !g.predictedDoubleJumpUsed {
+		g.predictedVY = -config.JumpVelocity
+		g.predictedDoubleJumpUsed = true
+	}
+
+	// Double Jump Reset wenn wieder am Boden
+	if g.predictedGround {
+		g.predictedDoubleJumpUsed = false
+	}
+
 	// Physik-Input vorbereiten
 	physicsInput := physics.PhysicsInput{
 		InputX: moveX,
@@ -175,4 +187,8 @@ func (g *Game) ReconcileWithServer(serverState game.PlayerState) {
 	g.predictedVY = replayVY
 	g.predictedGround = replayGround
 	g.predictedOnWall = replayOnWall
+
+	// Powerup-State vom Server übernehmen (autoritativ)
+	g.predictedHasDoubleJump = serverState.HasDoubleJump
+	g.predictedDoubleJumpUsed = serverState.DoubleJumpUsed
 }