README.md

@@ -1,10 +1,2 @@
 # autogo
-The silly Raylib cargame I made in C but in Go for my champ
+The silly Raylib cargame I made in C but in Go
-
-## Screenshot
-![Screenshot](./resources/screenshot.png)
-
-
-### note Garage texture 
-changed saturation to 10% to make Raylib tint work well enough, using ImageMagick:
-```convert garage.png -resize 200x200! -channel A -evaluate multiply 0.5 +channel -modulate 100,25,100 garage_200px.png```

go.mod

@@ -2,10 +2,9 @@ module github.com/bdnugget/autogo.git
 
 go 1.23.0
 
-require github.com/gen2brain/raylib-go/raylib v0.0.0-20240826113553-b4d0c52dc927
-
 require (
 	github.com/ebitengine/purego v0.7.1 // indirect
+	github.com/gen2brain/raylib-go/raylib v0.0.0-20240826113553-b4d0c52dc927 // indirect
 	golang.org/x/exp v0.0.0-20240823005443-9b4947da3948 // indirect
 	golang.org/x/sys v0.24.0 // indirect
 )

main.go

@@ -3,158 +3,234 @@ package main
 import (
 	"fmt"
 	"math/rand"
+	"time"
 
 	rl "github.com/gen2brain/raylib-go/raylib"
 )
 
 const (
-	screenWidth  = 1600
+	SQUARE_SIZE  int32 = 200
-	screenHeight = 800
+	FPS_TARGET   int32 = 60
-	numLanes     = 5
+	GARAGE_COUNT int32 = 5
-	numGarages   = 5
-	carSpeed     = 5
-	laneHeight   = screenHeight / numLanes
-)
-
-var (
-	garageColors  = [numGarages]rl.Color{rl.Red, rl.Blue, rl.Green, rl.Yellow, rl.Purple}
-	autoHappy     rl.Sound
-	autoSad       rl.Sound
-	autoTexture   rl.Texture2D
-	garageTexture rl.Texture2D
-	highScore     int
 )
 
 type Car struct {
-	texture rl.Texture2D
+	position  rl.Vector2
-	lane    int
+	size      rl.Vector2
 	color     rl.Color
-	xPos    int
+	direction int32
 }
 
 type Garage struct {
-	lane  int
+	position rl.Vector2
+	size     rl.Vector2
 	color    rl.Color
 }
 
-type Game struct {
+type GameState struct {
+	score         int32
 	car           Car
-	garages  [numGarages]Garage
+	framesCounter int32
-	score    int
 	gameOver      bool
+	pause         bool
+	allowMove     bool
+	garages       []Garage
 }
 
-func NewCar() Car {
+var (
-	return Car{
+	screenWidth  int32 = 1600
-		texture: autoTexture,
+	screenHeight int32 = 1000
-		lane:    rand.Intn(numLanes),
-		color:   randomColor(),
-		xPos:    25,
-	}
-}
 
-func NewGame() *Game {
+	autoTexture   rl.Texture2D
-	game := &Game{
+	autoHappy     rl.Sound
-		car:      NewCar(),
+	autoSad       rl.Sound
-		score:    0,
+	garageColors        = []rl.Color{rl.Red, rl.Green, rl.Blue, rl.Yellow, rl.Purple}
-		gameOver: false,
+	gameState     GameState
-	}
+	offset        rl.Vector2
-
+)
-	// Initialize garages
-	for i := range game.garages {
-		game.garages[i] = Garage{
-			lane:  i,
-			color: garageColors[i],
-		}
-	}
-
-	return game
-}
-
-func randomColor() rl.Color {
-	return garageColors[rand.Intn(len(garageColors))]
-}
-
-func (g *Game) draw() {
-	// Draw stripes on the road
-	for i := 0; i < numLanes; i++ {
-		rl.DrawRectangle(0, int32(i*laneHeight), screenWidth, 2, rl.White)
-	}
-
-	// Draw garages
-	for _, garage := range g.garages {
-		rl.DrawRectangle(int32(screenWidth-150), int32(garage.lane*laneHeight), 150, int32(laneHeight), garage.color)
-		rl.DrawTexture(garageTexture, int32(screenWidth-150), int32(garage.lane*laneHeight), garage.color)
-	}
-
-	// Draw car
-	rl.DrawTexture(g.car.texture, int32(g.car.xPos), int32(g.car.lane*laneHeight), g.car.color)
-
-	rl.DrawText(fmt.Sprintf("Score: %d\nHigh Score: %d", g.score, highScore), 10, 10, 32, rl.DarkGreen)
-	if g.gameOver {
-		rl.DrawText("You're not an WinRAR :(\nPress Enter to Restart", int32(screenWidth/2-150), int32(screenHeight/2-20), 32, rl.Red)
-	}
-}
-
-func (g *Game) update() {
-	if g.gameOver {
-		if rl.IsKeyPressed(rl.KeyEnter) {
-			*g = *NewGame()
-		}
-		return
-	}
-
-	g.car.xPos += carSpeed
-
-	// Check if the car has reached the garages
-	if int32(g.car.xPos)+g.car.texture.Width >= screenWidth-100 {
-		garage := g.garages[g.car.lane]
-		if g.car.color == garage.color {
-			rl.PlaySound(autoHappy)
-			g.score++
-			if g.score > highScore {
-				highScore = g.score
-			}
-			g.car = NewCar()
-		} else {
-			rl.PlaySound(autoSad)
-			g.gameOver = true
-		}
-	}
-
-	// Move car
-	if rl.IsKeyPressed(rl.KeyUp) && g.car.lane > 0 {
-		g.car.lane--
-	} else if (rl.IsKeyPressed(rl.KeyDown) || rl.IsKeyPressed(rl.KeyLeft) || rl.IsKeyPressed(rl.KeyRight)) && g.car.lane < numLanes-1 {
-		g.car.lane++
-	}
-}
 
 func main() {
 	rl.InitWindow(screenWidth, screenHeight, "Dikke Vette Cargame voor Milo")
 	rl.InitAudioDevice()
 	defer rl.CloseAudioDevice()
+	defer rl.CloseWindow()
 
-	// Load assets
 	autoHappy = rl.LoadSound("resources/auto_happy_vob.ogg")
 	autoSad = rl.LoadSound("resources/auto_sad_vob.ogg")
 	autoTexture = rl.LoadTexture("resources/car_200px.png")
-	garageTexture = rl.LoadTexture("resources/garage_200px.png")
-	defer rl.UnloadTexture(autoTexture)
 	defer rl.UnloadSound(autoHappy)
 	defer rl.UnloadSound(autoSad)
+	defer rl.UnloadTexture(autoTexture)
 
-	game := NewGame()
+	offset = rl.Vector2{X: float32(screenWidth % SQUARE_SIZE), Y: float32(screenHeight % SQUARE_SIZE)}
 
-	rl.SetTargetFPS(60)
+	InitGame()
+
+	rl.SetTargetFPS(FPS_TARGET)
 
 	for !rl.WindowShouldClose() {
+		UpdateDrawFrame()
+	}
+}
+
+func InitGame() {
+	rand.Seed(time.Now().UnixNano())
+	randomIndex := rand.Intn(int(GARAGE_COUNT))
+
+	gameState.framesCounter = 0
+	gameState.gameOver = false
+	gameState.pause = false
+	gameState.allowMove = false
+	gameState.car = Car{
+		position:  rl.Vector2{X: offset.X / 2, Y: offset.Y/2 + 2*float32(SQUARE_SIZE)},
+		size:      rl.Vector2{X: float32(SQUARE_SIZE), Y: float32(SQUARE_SIZE)},
+		color:     garageColors[randomIndex],
+		direction: 0,
+	}
+	gameState.garages = make([]Garage, GARAGE_COUNT)
+
+	InitGarages()
+}
+
+func UpdateDrawFrame() {
+	UpdateGame()
+	DrawGame()
+}
+
+func UpdateGame() {
+	if !gameState.gameOver {
+		HandlePause()
+		HandleMovement()
+		CheckCollisions()
+		IncrementFrameCounter()
+	} else {
+		HandleRestart()
+	}
+}
+
+func HandlePause() {
+	if rl.IsKeyPressed(int32('P')) {
+		gameState.pause = !gameState.pause
+	}
+}
+
+func HandleMovement() {
+	if !gameState.pause {
+		if rl.IsKeyPressed(rl.KeyUp) && gameState.allowMove && gameState.car.position.Y > 0 {
+			gameState.car.direction = -1
+			gameState.allowMove = false
+		}
+		if (rl.IsKeyPressed(rl.KeyDown) || rl.IsKeyPressed(rl.KeyLeft) || rl.IsKeyPressed(rl.KeyRight)) &&
+			gameState.allowMove &&
+			gameState.car.position.Y < float32(screenHeight-SQUARE_SIZE) {
+			gameState.car.direction = 1
+			gameState.allowMove = false
+		}
+
+		if gameState.framesCounter%(FPS_TARGET/60) == 0 {
+			MoveCar()
+		}
+	}
+}
+
+func MoveCar() {
+	gameState.car.position.X += float32(SQUARE_SIZE) / float32(FPS_TARGET)
+	gameState.car.position.Y += float32(gameState.car.direction * SQUARE_SIZE)
+	gameState.allowMove = true
+	gameState.car.direction = 0
+}
+
+func CheckCollisions() {
+	for i := int32(0); i < GARAGE_COUNT; i++ {
+		if rl.CheckCollisionRecs(
+			rl.Rectangle{X: gameState.car.position.X, Y: gameState.car.position.Y, Width: gameState.car.size.X, Height: gameState.car.size.Y},
+			rl.Rectangle{X: gameState.garages[i].position.X, Y: gameState.garages[i].position.Y, Width: gameState.garages[i].size.X, Height: gameState.garages[i].size.Y},
+		) {
+			HandleCollision(i)
+		}
+	}
+}
+
+func HandleCollision(index int32) {
+	if rl.ColorToInt(gameState.car.color) == rl.ColorToInt(gameState.garages[index].color) {
+		rl.PlaySound(autoHappy)
+		gameState.score++
+		InitGame()
+	} else {
+		rl.PlaySound(autoSad)
+		gameState.gameOver = true
+	}
+}
+
+func IncrementFrameCounter() {
+	gameState.framesCounter++
+}
+
+func HandleRestart() {
+	if rl.IsKeyPressed(rl.KeyEnter) {
+		gameState.score = 0
+		InitGame()
+	}
+}
+
+func DrawGame() {
 	rl.BeginDrawing()
+
 	rl.ClearBackground(rl.DarkGray)
 
-		game.update()
+	if !gameState.gameOver {
-		game.draw()
+		for i := int32(1); i < screenHeight/SQUARE_SIZE+1; i++ {
+			for j := int32(0); j < screenWidth/(SQUARE_SIZE/2); j += 2 {
+				rl.DrawRectangle(
+					int32(j)*((SQUARE_SIZE/2)+int32(offset.X)/2),
+					int32(i*SQUARE_SIZE+int32(offset.Y)/2),
+					SQUARE_SIZE/2,
+					SQUARE_SIZE/8,
+					rl.RayWhite,
+				)
+			}
+		}
+
+		// Draw garages
+		for i := int32(0); i < GARAGE_COUNT; i++ {
+			rl.DrawRectangleRec(
+				rl.Rectangle{X: gameState.garages[i].position.X, Y: gameState.garages[i].position.Y, Width: gameState.garages[i].size.X, Height: gameState.garages[i].size.Y},
+				gameState.garages[i].color,
+			)
+		}
+
+		rl.DrawTextureV(autoTexture, gameState.car.position, gameState.car.color)
+
+		// Draw score
+		rl.DrawText(fmt.Sprintf("Score: %d", gameState.score), 20, 20, 20, rl.RayWhite)
+
+		if gameState.pause {
+			rl.DrawText(
+				"GAME PAUSED",
+				screenWidth/2-rl.MeasureText("GAME PAUSED", 40)/2,
+				screenHeight/2-40,
+				40,
+				rl.Gray,
+			)
+		}
+	} else {
+		rl.DrawText(
+			"A WINRAR IS NOT YOU :(\nPRESS [ENTER] TO PLAY AGAIN",
+			screenWidth/2-rl.MeasureText("A WINRAR IS NOT YOU :(\nPRESS [ENTER] TO PLAY AGAIN", 20)/2,
+			screenHeight/2-50,
+			20,
+			rl.Gray,
+		)
+	}
 
 	rl.EndDrawing()
 }
+
+func InitGarages() {
+	for i := int32(0); i < GARAGE_COUNT; i++ {
+		gameState.garages[i].size = rl.Vector2{X: float32(SQUARE_SIZE), Y: float32(SQUARE_SIZE)}
+		gameState.garages[i].position = rl.Vector2{X: float32(screenWidth - SQUARE_SIZE), Y: float32(i * SQUARE_SIZE)}
+		gameState.garages[i].color = garageColors[i]
 	}
+}
+