enhance offline mode: add moving platforms, collision detection, and power-ups

cmd/client/main.go

@@ -55,6 +55,27 @@ type InputState struct {
 	JoyX     float64 // Analoger Joystick-Wert (-1.0 bis 1.0)
 }
 
+type MovingPlatform struct {
+	ChunkID    string
+	ObjectIdx  int
+	AssetID    string
+	CurrentX   float64
+	CurrentY   float64
+	StartX     float64
+	StartY     float64
+	EndX       float64
+	EndY       float64
+	Speed      float64
+	Direction  float64
+	IsActive   bool
+	HitboxW    float64
+	HitboxH    float64
+	DrawOffX   float64
+	DrawOffY   float64
+	HitboxOffX float64
+	HitboxOffY float64
+}
+
 // --- GAME STRUCT ---
 type Game struct {
 	appState       int
@@ -74,6 +95,10 @@ type Game struct {
 	activeField string // "name" oder "room" oder "teamname"
 	gameMode    string // "solo" oder "coop"
 	isOffline   bool   // Läuft das Spiel lokal ohne Server?
+	offlineMovingPlatforms []*MovingPlatform // Lokale bewegende Plattformen für Offline-Modus
+	godModeEndTime    time.Time
+	magnetEndTime     time.Time
+	doubleJumpEndTime time.Time
 	isHost      bool
 	teamName    string // Team-Name für Coop beim Game Over
 
@@ -876,6 +901,9 @@ func (g *Game) resetForNewGame() {
 
 	// Spieler-State zurücksetzen
 	g.isOffline = false
+	g.godModeEndTime = time.Time{}
+	g.magnetEndTime = time.Time{}
+	g.doubleJumpEndTime = time.Time{}
 	g.scoreSubmitted = false
 	g.lastStatus = ""
 	g.correctionCount = 0