llgo/c/raylib:tetris demo

c/raylib/_demo/tetris/tetris.go

@@ -0,0 +1,177 @@
+package main
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/raylib"
+)
+
+const (
+	BOARD_WIDTH  = 10
+	BOARD_HEIGHT = 20
+	BLOCK_SIZE   = 30
+
+	SCREENWIDTH  = 300
+	SCREENHEIGHT = 600
+)
+
+const MAX_BLOCKS = 4
+
+type Shape struct {
+	Blocks [MAX_BLOCKS]raylib.Vector2
+	Color  raylib.Color
+}
+
+var SHAPES = []Shape{
+	{Blocks: [MAX_BLOCKS]raylib.Vector2{{X: 0, Y: 0}, {X: 1, Y: 0}, {X: 2, Y: 0}, {X: 3, Y: 0}}, Color: raylib.SKYBLUE},
+	{Blocks: [MAX_BLOCKS]raylib.Vector2{{X: 0, Y: 0}, {X: 1, Y: 0}, {X: 0, Y: 1}, {X: 1, Y: 1}}, Color: raylib.YELLOW},
+	{Blocks: [MAX_BLOCKS]raylib.Vector2{{X: 1, Y: 0}, {X: 0, Y: 1}, {X: 1, Y: 1}, {X: 2, Y: 1}}, Color: raylib.PURPLE},
+	{Blocks: [MAX_BLOCKS]raylib.Vector2{{X: 1, Y: 0}, {X: 2, Y: 0}, {X: 0, Y: 1}, {X: 1, Y: 1}}, Color: raylib.GREEN},
+	{Blocks: [MAX_BLOCKS]raylib.Vector2{{X: 0, Y: 0}, {X: 1, Y: 0}, {X: 1, Y: 1}, {X: 2, Y: 1}}, Color: raylib.RED},
+	{Blocks: [MAX_BLOCKS]raylib.Vector2{{X: 0, Y: 0}, {X: 0, Y: 1}, {X: 1, Y: 1}, {X: 2, Y: 1}}, Color: raylib.BLUE},
+	{Blocks: [MAX_BLOCKS]raylib.Vector2{{X: 2, Y: 0}, {X: 0, Y: 1}, {X: 1, Y: 1}, {X: 2, Y: 1}}, Color: raylib.ORANGE},
+}
+
+var board [BOARD_HEIGHT][BOARD_WIDTH]raylib.Color
+
+var curShape Shape
+var curPos raylib.Vector2
+
+var fallTime = c.Float(0)
+var fallSpeed = c.Float(0.2)
+var score = 0
+var scoreText = make([]c.Char, 20)
+var gameOver = false
+
+func genShape() {
+	curShape = SHAPES[raylib.GetRandomValue(c.Int(0), c.Int(6))]
+	curPos = raylib.Vector2{BOARD_WIDTH/2 - 1, 0}
+}
+
+func checkCollision() bool {
+	for i := 0; i < MAX_BLOCKS; i++ {
+		x := int(curPos.X + curShape.Blocks[i].X)
+		y := int(curPos.Y + curShape.Blocks[i].Y)
+		if x < 0 || x >= BOARD_WIDTH || y >= BOARD_HEIGHT || (y >= 0 && board[y][x] != raylib.BLANK) {
+			return true
+		}
+	}
+	return false
+}
+
+func lockShape() {
+	for i := 0; i < MAX_BLOCKS; i++ {
+		x := int(curPos.X + curShape.Blocks[i].X)
+		y := int(curPos.Y + curShape.Blocks[i].Y)
+		if y >= 0 {
+			board[y][x] = curShape.Color
+		}
+	}
+}
+
+func rotateShape() {
+	rotated := curShape
+	for i := 0; i < MAX_BLOCKS; i++ {
+		x := rotated.Blocks[i].X
+		rotated.Blocks[i].X = -rotated.Blocks[i].Y
+		rotated.Blocks[i].Y = x
+	}
+
+	temp := curShape
+	curShape = rotated
+	if checkCollision() {
+		curShape = temp
+	}
+}
+func clearLines() int {
+	linesCleared := 0
+	for y := BOARD_HEIGHT - 1; y >= 0; y-- {
+		lineFull := true
+		for x := 0; x < BOARD_WIDTH; x++ {
+			if board[y][x] == raylib.BLANK {
+				lineFull = false
+				break
+			}
+		}
+		if lineFull {
+			for yy := y; yy > 0; yy-- {
+				for x := 0; x < BOARD_WIDTH; x++ {
+					board[yy][x] = board[yy-1][x]
+				}
+			}
+			for x := 0; x < BOARD_WIDTH; x++ {
+				board[0][x] = raylib.BLANK
+			}
+			y += 1
+			linesCleared += 1
+		}
+	}
+	return linesCleared
+}
+
+func main() {
+
+	raylib.InitWindow(SCREENWIDTH, SCREENHEIGHT, c.Str("Raylib DEMO"))
+	raylib.SetTargetFPS(c.Int(60))
+	genShape()
+	for !raylib.WindowShouldClose() && !gameOver {
+		fallTime += raylib.GetFrameTime()
+		if fallTime >= fallSpeed {
+			fallTime = 0
+			curPos.Y += 1
+			if checkCollision() {
+				curPos.Y -= 1
+				lockShape()
+				linesCleared := clearLines()
+				score += linesCleared * 100
+				genShape()
+				if checkCollision() {
+					gameOver = true
+				}
+			}
+		}
+
+		if raylib.IsKeyPressed(raylib.KEY_LEFT) {
+			curPos.X -= 1
+			if checkCollision() {
+				curPos.X += 1
+			}
+		}
+		if raylib.IsKeyPressed(raylib.KEY_RIGHT) {
+			curPos.X += 1
+			if checkCollision() {
+				curPos.X -= 1
+			}
+		}
+		if raylib.IsKeyPressed(raylib.KEY_UP) || raylib.IsKeyPressed(raylib.KEY_DOWN) {
+			rotateShape()
+		}
+
+		raylib.BeginDrawing()
+		raylib.ClearBackground(raylib.RAYWHITE)
+		for y := 0; y < BOARD_HEIGHT; y++ {
+			for x := 0; x < BOARD_WIDTH; x++ {
+				raylib.DrawRectangle(c.Int(x*BLOCK_SIZE), c.Int(y*BLOCK_SIZE), c.Int(BLOCK_SIZE-1), c.Int(BLOCK_SIZE-1), board[y][x])
+			}
+		}
+
+		for i := 0; i < MAX_BLOCKS; i++ {
+			raylib.DrawRectangle(c.Int((curPos.X+curShape.Blocks[i].X)*BLOCK_SIZE), c.Int((curPos.Y+curShape.Blocks[i].Y)*BLOCK_SIZE),
+				BLOCK_SIZE-1, BLOCK_SIZE-1, curShape.Color)
+		}
+
+		c.Sprintf(unsafe.SliceData(scoreText), c.Str("Score:%d"), score)
+		raylib.DrawText(unsafe.SliceData(scoreText), 10, 10, 20, raylib.BLACK)
+
+		raylib.EndDrawing()
+	}
+
+	for !raylib.WindowShouldClose() {
+		raylib.BeginDrawing()
+		raylib.ClearBackground(raylib.RAYWHITE)
+		raylib.DrawText(c.Str("Game Over"), SCREENWIDTH/2-50, SCREENHEIGHT/2-10, 20, raylib.RED)
+		raylib.DrawText(unsafe.SliceData(scoreText), SCREENWIDTH/2-50, SCREENHEIGHT/2+10, 20, raylib.BLACK)
+		raylib.EndDrawing()
+	}
+}