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380 lines
10 KiB
Go
380 lines
10 KiB
Go
package main
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import (
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"fmt"
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"image/color"
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"math"
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"math/rand"
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"git.zb-server.de/ZB-Server/EscapeFromTeacher/pkg/game"
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"github.com/hajimehoshi/ebiten/v2"
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"github.com/hajimehoshi/ebiten/v2/vector"
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)
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// Particle definiert ein einzelnes Partikel
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type Particle struct {
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X, Y float64
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VX, VY float64
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Life float64 // 0.0 bis 1.0 (1.0 = neu, 0.0 = tot)
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MaxLife float64 // Ursprüngliche Lebensdauer in Sekunden
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Size float64
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Color color.RGBA
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Type string // "coin", "powerup", "landing", "death"
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Gravity bool // Soll Gravitation angewendet werden?
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FadeOut bool // Soll ausblenden?
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}
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// SpawnCoinParticles erstellt Partikel für Coin-Einsammlung
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func (g *Game) SpawnCoinParticles(x, y float64) {
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g.particlesMutex.Lock()
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defer g.particlesMutex.Unlock()
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// 10-15 goldene Partikel - spawnen in alle Richtungen
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count := 10 + rand.Intn(6)
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for i := 0; i < count; i++ {
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angle := rand.Float64() * 2 * math.Pi
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speed := 2.0 + rand.Float64()*3.0
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g.particles = append(g.particles, Particle{
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X: x,
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Y: y,
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VX: math.Cos(angle) * speed,
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VY: math.Sin(angle) * speed,
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Life: 1.0,
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MaxLife: 0.5 + rand.Float64()*0.3,
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Size: 3.0 + rand.Float64()*2.0,
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Color: color.RGBA{255, 215, 0, 255}, // Gold
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Type: "coin",
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Gravity: true,
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FadeOut: true,
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})
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}
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}
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// SpawnPowerupAura erstellt Partikel-Aura um Spieler mit aktivem Powerup.
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// intensity: 0.0 (schwach/auslaufend) bis 1.0 (voll aktiv) – steuert Spawn-Rate und Partikelgröße.
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func (g *Game) SpawnPowerupAura(x, y float64, powerupType string, intensity float64) {
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if intensity <= 0 {
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return
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}
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g.particlesMutex.Lock()
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defer g.particlesMutex.Unlock()
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// Farbe je nach Powerup-Typ
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var particleColor color.RGBA
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switch powerupType {
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case "doublejump":
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particleColor = color.RGBA{100, 200, 255, 200} // Hellblau
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case "godmode":
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particleColor = color.RGBA{255, 215, 0, 200} // Gold
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case "magnet":
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particleColor = color.RGBA{255, 80, 220, 200} // Pink/Magenta
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default:
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particleColor = color.RGBA{200, 100, 255, 200} // Lila
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}
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// Spawn-Rate skaliert mit Intensität: bei voll aktiv ~1/3 Chance, bei fast leer ~1/10
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spawnThreshold := int(3.0/intensity + 0.5)
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if spawnThreshold < 1 {
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spawnThreshold = 1
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}
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if rand.Intn(spawnThreshold) != 0 {
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return
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}
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angle := rand.Float64() * 2 * math.Pi
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distance := 25.0 + rand.Float64()*20.0
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size := (2.5 + rand.Float64()*1.5) * intensity
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g.particles = append(g.particles, Particle{
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X: x + math.Cos(angle)*distance,
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Y: y + math.Sin(angle)*distance,
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VX: math.Cos(angle) * 0.5,
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VY: math.Sin(angle) * 0.5,
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Life: 1.0,
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MaxLife: (1.0 + rand.Float64()*0.5) * intensity,
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Size: size,
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Color: particleColor,
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Type: "powerup",
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Gravity: false,
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FadeOut: true,
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})
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}
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// SpawnLandingParticles erstellt Staub-Partikel beim Landen
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func (g *Game) SpawnLandingParticles(x, y float64) {
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g.particlesMutex.Lock()
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defer g.particlesMutex.Unlock()
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// 5-8 Staub-Partikel
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count := 5 + rand.Intn(4)
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for i := 0; i < count; i++ {
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angle := math.Pi + (rand.Float64()-0.5)*0.8 // Nach unten/seitlich
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speed := 1.0 + rand.Float64()*2.0
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g.particles = append(g.particles, Particle{
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X: x + (rand.Float64()-0.5)*30.0,
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Y: y + 10,
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VX: math.Cos(angle) * speed,
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VY: math.Sin(angle) * speed,
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Life: 1.0,
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MaxLife: 0.3 + rand.Float64()*0.2,
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Size: 2.0 + rand.Float64()*2.0,
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Color: color.RGBA{150, 150, 150, 180}, // Grau
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Type: "landing",
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Gravity: false,
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FadeOut: true,
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})
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}
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}
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// SpawnDeathParticles erstellt Explosions-Partikel beim Tod
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func (g *Game) SpawnDeathParticles(x, y float64) {
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g.particlesMutex.Lock()
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defer g.particlesMutex.Unlock()
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// 20-30 rote Partikel
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count := 20 + rand.Intn(11)
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for i := 0; i < count; i++ {
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angle := rand.Float64() * 2 * math.Pi
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speed := 3.0 + rand.Float64()*5.0
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g.particles = append(g.particles, Particle{
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X: x,
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Y: y + 10,
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VX: math.Cos(angle) * speed,
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VY: math.Sin(angle) * speed,
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Life: 1.0,
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MaxLife: 0.8 + rand.Float64()*0.4,
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Size: 3.0 + rand.Float64()*3.0,
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Color: color.RGBA{255, 50, 50, 255}, // Rot
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Type: "death",
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Gravity: true,
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FadeOut: true,
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})
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}
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g.TriggerShake(12, 7.0)
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}
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// UpdateParticles aktualisiert alle Partikel
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func (g *Game) UpdateParticles(dt float64) {
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g.particlesMutex.Lock()
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defer g.particlesMutex.Unlock()
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// Filtern: Nur lebende Partikel behalten
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alive := make([]Particle, 0, len(g.particles))
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for i := range g.particles {
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p := &g.particles[i]
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// Position updaten
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p.X += p.VX
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p.Y += p.VY
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// Gravitation
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if p.Gravity {
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p.VY += 0.3 // Gravitation
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}
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// Friction
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p.VX *= 0.98
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p.VY *= 0.98
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// Leben verringern
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p.Life -= dt / p.MaxLife
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// Nur behalten wenn noch am Leben
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if p.Life > 0 {
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alive = append(alive, *p)
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}
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}
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g.particles = alive
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}
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// RenderParticles zeichnet alle Partikel
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func (g *Game) RenderParticles(screen *ebiten.Image) {
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g.particlesMutex.Lock()
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defer g.particlesMutex.Unlock()
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// Canvas-Höhe für Y-Transformation
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_, canvasH := screen.Size()
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for i := range g.particles {
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p := &g.particles[i]
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// Alpha-Wert basierend auf Leben
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alpha := uint8(255)
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if p.FadeOut {
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alpha = uint8(float64(p.Color.A) * p.Life)
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}
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col := color.RGBA{p.Color.R, p.Color.G, p.Color.B, alpha}
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// Position relativ zur Kamera und mit Y-Transformation
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screenX := float32((p.X - g.camX) * GetScaleFromHeight(canvasH))
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screenY := float32(WorldToScreenYWithHeight(p.Y, canvasH))
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// Partikel als Kreis zeichnen
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vector.DrawFilledCircle(screen, screenX, screenY, float32(p.Size), col, false)
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}
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}
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// DetectAndSpawnParticles prüft Game-State-Änderungen und spawnt Partikel
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func (g *Game) DetectAndSpawnParticles() {
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// Kopiere relevante Daten unter kurzen Lock
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g.stateMutex.Lock()
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// Kopiere Coins
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currentCoins := make(map[string]bool, len(g.gameState.CollectedCoins))
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for k, v := range g.gameState.CollectedCoins {
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currentCoins[k] = v
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}
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// Kopiere Powerups
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currentPowerups := make(map[string]bool, len(g.gameState.CollectedPowerups))
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for k, v := range g.gameState.CollectedPowerups {
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currentPowerups[k] = v
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}
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// Kopiere Spieler
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currentPlayers := make(map[string]game.PlayerState, len(g.gameState.Players))
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for k, v := range g.gameState.Players {
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currentPlayers[k] = v
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}
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// Kopiere WorldChunks für Position-Lookup
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worldChunks := make([]game.ActiveChunk, len(g.gameState.WorldChunks))
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copy(worldChunks, g.gameState.WorldChunks)
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g.stateMutex.Unlock()
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// Ab hier ohne Lock arbeiten
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// Alte Coins entfernen, die nicht mehr in currentCoins sind (Chunk wurde entfernt)
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for key := range g.lastCollectedCoins {
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if !currentCoins[key] {
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delete(g.lastCollectedCoins, key)
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}
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}
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// 1. Prüfe neue gesammelte Coins
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for coinKey := range currentCoins {
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if !g.lastCollectedCoins[coinKey] {
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// Neuer Coin gesammelt!
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if pos := g.findObjectPosition(coinKey, worldChunks, "coin"); pos != nil {
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g.SpawnCoinParticles(pos.X, pos.Y)
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g.audio.PlayCoin() // Coin Sound abspielen
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}
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g.lastCollectedCoins[coinKey] = true
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}
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}
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// Alte Powerups entfernen
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for key := range g.lastCollectedPowerups {
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if !currentPowerups[key] {
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delete(g.lastCollectedPowerups, key)
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}
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}
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// 2. Prüfe neue gesammelte Powerups
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for powerupKey := range currentPowerups {
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if !g.lastCollectedPowerups[powerupKey] {
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// Neues Powerup gesammelt!
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if pos := g.findObjectPosition(powerupKey, worldChunks, "powerup"); pos != nil {
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g.SpawnCoinParticles(pos.X, pos.Y)
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g.audio.PlayPowerUp() // PowerUp Sound abspielen
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}
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g.lastCollectedPowerups[powerupKey] = true
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}
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}
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// 3. Prüfe Spieler-Status und spawn Aura/Death Partikel
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for playerID, player := range currentPlayers {
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lastState, existed := g.lastPlayerStates[playerID]
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// Death Partikel
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if existed && lastState.IsAlive && !player.IsAlive {
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// Berechne Spieler-Mitte
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centerX := player.X - 56 + 68 + 73/2
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centerY := player.Y - 231 + 42 + 184/2
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g.SpawnDeathParticles(centerX, centerY)
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}
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// Powerup Aura (kontinuierlich)
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if player.IsAlive && !player.IsSpectator {
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// Berechne Spieler-Mitte mit Draw-Offsets
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// DrawOffX: -56, DrawOffY: -231
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// Hitbox: OffsetX: 68, OffsetY: 42, W: 73, H: 184
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centerX := player.X - 56 + 68 + 73/2
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centerY := player.Y - 231 + 42 + 184/2
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if player.HasDoubleJump {
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// Intensität nimmt mit verbleibender Zeit ab (0..15s → 1.0..0.1)
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// Zusätzlich schwächer wenn Sprung bereits verbraucht
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intensity := player.DoubleJumpRemainingSeconds / 15.0
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if intensity > 1.0 {
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intensity = 1.0
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} else if intensity < 0.1 {
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intensity = 0.1
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}
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if player.DoubleJumpUsed {
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intensity *= 0.4
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}
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g.SpawnPowerupAura(centerX, centerY, "doublejump", intensity)
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}
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if player.HasGodMode {
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// Intensität nimmt mit verbleibender Zeit ab (0..10s → 1.0..0.1)
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intensity := player.GodModeRemainingSeconds / 10.0
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if intensity > 1.0 {
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intensity = 1.0
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} else if intensity < 0.1 {
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intensity = 0.1
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}
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g.SpawnPowerupAura(centerX, centerY, "godmode", intensity)
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}
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if player.HasMagnet {
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// Intensität nimmt mit verbleibender Zeit ab (0..8s → 1.0..0.1)
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intensity := player.MagnetRemainingSeconds / 8.0
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if intensity > 1.0 {
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intensity = 1.0
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} else if intensity < 0.1 {
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intensity = 0.1
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}
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g.SpawnPowerupAura(centerX, centerY, "magnet", intensity)
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}
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}
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// State aktualisieren
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g.lastPlayerStates[playerID] = player
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}
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}
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// findObjectPosition finiert die Welt-Position eines Objects (Coin/Powerup) basierend auf Key
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func (g *Game) findObjectPosition(objectKey string, worldChunks []game.ActiveChunk, objectType string) *struct{ X, Y float64 } {
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for _, activeChunk := range worldChunks {
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chunkDef, exists := g.world.ChunkLibrary[activeChunk.ChunkID]
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if !exists {
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continue
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}
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for objIdx, obj := range chunkDef.Objects {
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key := fmt.Sprintf("%s_%d", activeChunk.ChunkID, objIdx)
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if key == objectKey {
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assetDef, ok := g.world.Manifest.Assets[obj.AssetID]
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if ok && assetDef.Type == objectType {
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// Berechne die Mitte der Hitbox
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centerX := activeChunk.X + obj.X + assetDef.DrawOffX + assetDef.Hitbox.OffsetX + assetDef.Hitbox.W/2
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centerY := obj.Y + assetDef.DrawOffY + assetDef.Hitbox.OffsetY + assetDef.Hitbox.H/2
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return &struct{ X, Y float64 }{
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X: centerX,
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Y: centerY,
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}
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}
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}
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}
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}
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return nil
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}
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