Add scrolling background and particles
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Milan Nikolic
parent
37dbc16396
commit
d9d26d30f3
4 changed files with 155 additions and 40 deletions
3
examples/games/floppy/README.md
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3
examples/games/floppy/README.md
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@ -0,0 +1,3 @@
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## Floppy Gopher
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examples/games/floppy/images/clouds.png
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examples/games/floppy/images/clouds.png
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After Width: | Height: | Size: 4.7 KiB |
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examples/games/floppy/images/smoke.png
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examples/games/floppy/images/smoke.png
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After Width: | Height: | Size: 9.8 KiB |
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@ -10,12 +10,28 @@ import (
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)
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const (
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// Screen width
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screenWidth = 504
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// Screen height
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screenHeight = 896
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// Maximum number of pipes
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maxPipes = 100
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// Maximum number of particles
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maxParticles = 50
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// Pipes width
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pipesWidth = 60
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// Sprite size
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spriteSize = 48
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// Pipes speed
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pipesSpeedX = 2.5
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// Clouds speed
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cloudsSpeedX = 1
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// Gravity
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gravity = 1.2
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)
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// Floppy type
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@ -30,17 +46,28 @@ type Pipe struct {
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Active bool
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}
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// Particle type
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type Particle struct {
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Position raylib.Vector2
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Color raylib.Color
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Alpha float32
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Size float32
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Rotation float32
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Active bool
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}
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// Game type
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type Game struct {
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ScreenWidth int32
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ScreenHeight int32
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FxFlap raylib.Sound
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FxSlap raylib.Sound
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FxPoint raylib.Sound
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FxClick raylib.Sound
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Texture raylib.Texture2D
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TxSprites raylib.Texture2D
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TxSmoke raylib.Texture2D
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TxClouds raylib.Texture2D
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CloudRec raylib.Rectangle
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FrameRec raylib.Rectangle
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GameOver bool
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@ -51,13 +78,14 @@ type Game struct {
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Score int
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HiScore int
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FramesCounter int32
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WindowShouldClose bool
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Floppy Floppy
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Particles []Particle
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Pipes []Pipe
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PipesPos []raylib.Vector2
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PipesSpeedX int32
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}
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// NewGame - Start new game
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@ -80,12 +108,13 @@ func main() {
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func run(app unsafe.Pointer) {
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// Initialize game
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game := NewGame()
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game.GameOver = true
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// Initialize window
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if runtime.GOOS != "android" {
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raylib.InitWindow(game.ScreenWidth, game.ScreenHeight, "Floppy Gopher")
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raylib.InitWindow(screenWidth, screenHeight, "Floppy Gopher")
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} else {
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raylib.InitWindow(game.ScreenWidth, game.ScreenHeight, app)
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raylib.InitWindow(screenWidth, screenHeight, app)
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}
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// Initialize audio
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@ -121,17 +150,27 @@ func run(app unsafe.Pointer) {
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// Init - Initialize game
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func (g *Game) Init() {
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// Window resolution
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g.ScreenWidth = 504
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g.ScreenHeight = 896
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g.Floppy = Floppy{}
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g.Floppy.Position = raylib.NewVector2(80, float32(g.ScreenHeight)/2-spriteSize/2)
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g.PipesSpeedX = 2
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// Gopher
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g.Floppy = Floppy{raylib.NewVector2(80, float32(screenHeight)/2-spriteSize/2)}
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// Sprite rectangle
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g.FrameRec = raylib.NewRectangle(0, 0, spriteSize, spriteSize)
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// Cloud rectangle
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g.CloudRec = raylib.NewRectangle(0, 0, screenWidth, g.TxClouds.Height)
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// Initialize particles
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g.Particles = make([]Particle, maxParticles)
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for i := 0; i < maxParticles; i++ {
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g.Particles[i].Position = raylib.NewVector2(0, 0)
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g.Particles[i].Color = raylib.RayWhite
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g.Particles[i].Alpha = 1.0
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g.Particles[i].Size = float32(raylib.GetRandomValue(1, 30)) / 20.0
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g.Particles[i].Rotation = float32(raylib.GetRandomValue(0, 360))
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g.Particles[i].Active = false
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}
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// Pipes positions
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g.PipesPos = make([]raylib.Vector2, maxPipes)
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for i := 0; i < maxPipes; i++ {
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@ -179,7 +218,9 @@ func (g *Game) Load() {
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g.FxSlap = raylib.LoadSound("sounds/slap.wav")
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g.FxPoint = raylib.LoadSound("sounds/point.wav")
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g.FxClick = raylib.LoadSound("sounds/click.wav")
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g.Texture = raylib.LoadTexture("images/sprite.png")
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g.TxSprites = raylib.LoadTexture("images/sprite.png")
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g.TxSmoke = raylib.LoadTexture("images/smoke.png")
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g.TxClouds = raylib.LoadTexture("images/clouds.png")
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}
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// Unload - Unload resources
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@ -188,7 +229,9 @@ func (g *Game) Unload() {
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raylib.UnloadSound(g.FxSlap)
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raylib.UnloadSound(g.FxPoint)
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raylib.UnloadSound(g.FxClick)
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raylib.UnloadTexture(g.Texture)
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raylib.UnloadTexture(g.TxSprites)
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raylib.UnloadTexture(g.TxSmoke)
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raylib.UnloadTexture(g.TxClouds)
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}
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// Update - Update game
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@ -210,9 +253,9 @@ func (g *Game) Update() {
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if !g.Pause {
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if !g.Dead {
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// Scroll X
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// Scroll pipes
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for i := 0; i < maxPipes; i++ {
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g.PipesPos[i].X -= float32(g.PipesSpeedX)
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g.PipesPos[i].X -= float32(pipesSpeedX)
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}
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for i := 0; i < maxPipes*2; i += 2 {
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@ -220,10 +263,28 @@ func (g *Game) Update() {
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g.Pipes[i+1].Rec.X = int32(g.PipesPos[i/2].X)
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}
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// Scroll clouds
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g.CloudRec.X += cloudsSpeedX
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if g.CloudRec.X > g.TxClouds.Width {
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g.CloudRec.X = 0
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}
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// Movement/Controls
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if raylib.IsKeyDown(raylib.KeySpace) || raylib.IsMouseButtonDown(raylib.MouseLeftButton) && !g.GameOver {
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if raylib.IsKeyDown(raylib.KeySpace) || raylib.IsMouseButtonDown(raylib.MouseLeftButton) {
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raylib.PlaySound(g.FxFlap)
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// Activate one particle every frame
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for i := 0; i < maxParticles; i++ {
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if !g.Particles[i].Active {
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g.Particles[i].Active = true
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g.Particles[i].Alpha = 1.0
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g.Particles[i].Position = g.Floppy.Position
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g.Particles[i].Position.X += spriteSize / 2
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g.Particles[i].Position.Y += spriteSize / 2
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i = maxParticles
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}
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}
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// Switch flap sprites every 8 frames
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g.FramesCounter++
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if g.FramesCounter >= 8 {
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@ -236,10 +297,7 @@ func (g *Game) Update() {
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// Floppy go up
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g.Floppy.Position.Y -= 3
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} else {
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// Default sprite
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//g.FrameRec.X = spriteSize
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// Switch flap sprites every 8 frames
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// Switch run sprites every 8 frames
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g.FramesCounter++
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if g.FramesCounter >= 8 {
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g.FramesCounter = 0
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@ -249,11 +307,23 @@ func (g *Game) Update() {
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}
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// Floppy fall down
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g.Floppy.Position.Y += 1
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g.Floppy.Position.Y += gravity
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}
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// Update active particles
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for i := 0; i < maxParticles; i++ {
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if g.Particles[i].Active {
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g.Particles[i].Position.X -= 1.0
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g.Particles[i].Alpha -= 0.05
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if g.Particles[i].Alpha <= 0.0 {
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g.Particles[i].Active = false
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}
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g.Particles[i].Rotation += 3.0
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}
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}
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if !g.Dead {
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// Check Collisions
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for i := 0; i < maxPipes*2; i++ {
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if raylib.CheckCollisionRecs(raylib.NewRectangle(int32(g.Floppy.Position.X), int32(g.Floppy.Position.Y), spriteSize, spriteSize), g.Pipes[i].Rec) {
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@ -284,8 +354,13 @@ func (g *Game) Update() {
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g.GameOver = true
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}
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// Switch dead sprite
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if g.FramesCounter >= 8 {
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g.FrameRec.X = spriteSize * 5
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} else {
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g.FrameRec.X = spriteSize * 4
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}
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}
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} else {
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if raylib.IsMouseButtonDown(raylib.MouseLeftButton) {
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g.Pause = !g.Pause
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@ -301,6 +376,15 @@ func (g *Game) Update() {
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g.WindowShouldClose = true
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}
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// Switch flap sprites
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g.FramesCounter++
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if g.FramesCounter >= 8 {
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g.FramesCounter = 0
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g.FrameRec.X = spriteSize
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} else {
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g.FrameRec.X = 0
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}
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}
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}
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@ -311,8 +395,31 @@ func (g *Game) Draw() {
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raylib.ClearBackground(raylib.SkyBlue)
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if !g.GameOver {
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// Draw clouds
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raylib.DrawTextureRec(g.TxClouds, g.CloudRec, raylib.NewVector2(0, float32(screenHeight-g.TxClouds.Height)), raylib.RayWhite)
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// Draw rotated clouds
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raylib.DrawTexturePro(g.TxClouds, raylib.NewRectangle(-g.CloudRec.X, 0, g.TxClouds.Width, g.TxClouds.Height),
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raylib.NewRectangle(0, 0, g.TxClouds.Width, g.TxClouds.Height), raylib.NewVector2(float32(g.TxClouds.Width), float32(g.TxClouds.Height)), 180, raylib.White)
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// Draw Gopher
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raylib.DrawTextureRec(g.Texture, g.FrameRec, g.Floppy.Position, raylib.RayWhite) // Draw part of the texture
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raylib.DrawTextureRec(g.TxSprites, g.FrameRec, g.Floppy.Position, raylib.RayWhite)
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// Draw active particles
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if !g.Dead {
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for i := 0; i < maxParticles; i++ {
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if g.Particles[i].Active {
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raylib.DrawTexturePro(
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g.TxSmoke,
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raylib.NewRectangle(0, 0, g.TxSmoke.Width, g.TxSmoke.Height),
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raylib.NewRectangle(int32(g.Particles[i].Position.X), int32(g.Particles[i].Position.Y), g.TxSmoke.Width*int32(g.Particles[i].Size), g.TxSmoke.Height*int32(g.Particles[i].Size)),
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raylib.NewVector2(float32(g.TxSmoke.Width)*g.Particles[i].Size/2, float32(g.TxSmoke.Height)*g.Particles[i].Size/2),
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g.Particles[i].Rotation,
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raylib.Fade(g.Particles[i].Color, g.Particles[i].Alpha),
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)
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}
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}
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}
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// Draw pipes
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for i := 0; i < maxPipes; i++ {
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@ -326,25 +433,30 @@ func (g *Game) Draw() {
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// Draw Super Flashing FX (one frame only)
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if g.SuperFX {
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raylib.DrawRectangle(0, 0, g.ScreenWidth, g.ScreenHeight, raylib.White)
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raylib.DrawRectangle(0, 0, screenWidth, screenHeight, raylib.White)
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g.SuperFX = false
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}
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// Draw HI-SCORE
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raylib.DrawText(fmt.Sprintf("%02d", g.Score), 20, 20, 32, raylib.RayWhite)
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raylib.DrawText(fmt.Sprintf("HI-SCORE: %02d", g.HiScore), 20, 64, 20, raylib.RayWhite)
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raylib.DrawText(fmt.Sprintf("%02d", g.Score), 20, 20, 32, raylib.Black)
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raylib.DrawText(fmt.Sprintf("HI-SCORE: %02d", g.HiScore), 20, 64, 20, raylib.Black)
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if g.Pause {
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// Draw PAUSED text
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raylib.DrawText("PAUSED", g.ScreenWidth/2-raylib.MeasureText("PAUSED", 24)/2, g.ScreenHeight/2-50, 20, raylib.RayWhite)
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raylib.DrawText("PAUSED", screenWidth/2-raylib.MeasureText("PAUSED", 24)/2, screenHeight/2-50, 20, raylib.Black)
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}
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} else {
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// Draw PLAY AGAIN text
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// Draw text
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raylib.DrawText("Floppy Gopher", raylib.GetScreenWidth()/2-raylib.MeasureText("Floppy Gopher", 40)/2, raylib.GetScreenHeight()/2-150, 40, raylib.RayWhite)
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if runtime.GOOS == "android" {
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raylib.DrawText("[TAP] TO PLAY AGAIN", raylib.GetScreenWidth()/2-raylib.MeasureText("[TAP] TO PLAY AGAIN", 20)/2, raylib.GetScreenHeight()/2-50, 20, raylib.RayWhite)
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raylib.DrawText("[TAP] TO PLAY", raylib.GetScreenWidth()/2-raylib.MeasureText("[TAP] TO PLAY", 20)/2, raylib.GetScreenHeight()/2-50, 20, raylib.Black)
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} else {
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raylib.DrawText("[ENTER] TO PLAY AGAIN", raylib.GetScreenWidth()/2-raylib.MeasureText("[ENTER] TO PLAY AGAIN", 20)/2, raylib.GetScreenHeight()/2-50, 20, raylib.RayWhite)
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raylib.DrawText("[ENTER] TO PLAY", raylib.GetScreenWidth()/2-raylib.MeasureText("[ENTER] TO PLAY", 20)/2, raylib.GetScreenHeight()/2-50, 20, raylib.Black)
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}
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// Draw Gopher
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raylib.DrawTextureRec(g.TxSprites, g.FrameRec, raylib.NewVector2(float32(raylib.GetScreenWidth()/2-spriteSize/2), float32(raylib.GetScreenHeight()/2)), raylib.RayWhite)
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}
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raylib.EndDrawing()
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