refact

lib/config.go

@@ -0,0 +1,42 @@
+package lib
+
+import "image/color"
+
+const (
+	// Logical screen matches the bezel artwork (assets/background.png) 1:1.
+	ScreenW = 1200
+	ScreenH = 896
+
+	// Game world is rendered to this offscreen, then scaled into the LCD cutout.
+	LcdW = 240
+	LcdH = 136
+
+	// Olive LCD screen rectangle within the bezel image (measured from the PNG).
+	LcdScreenX = 331
+	LcdScreenY = 203
+	LcdScreenW = 537
+	LcdScreenH = 399
+
+	LaneCount = 5
+	HorizonY  = 28.0
+	HorizonX  = 120.0
+	PlayerY   = 116.0
+	MaxMiss   = 3
+)
+
+var LaneX = [LaneCount]float32{40, 80, 120, 160, 200}
+
+// How the LcdW×LcdH world maps onto the bezel's LCD cutout (uniform fit, centered).
+var (
+	LcdScale = float64(LcdScreenW) / float64(LcdW)
+	LcdDrawX = float64(LcdScreenX)
+	LcdDrawY = float64(LcdScreenY) + (float64(LcdScreenH)-float64(LcdH)*LcdScale)/2
+)
+
+// LCD palette — ColorBg matches the bezel's printed screen olive so the
+// letterboxed margins blend into the case art.
+var (
+	ColorBg  = color.RGBA{0xbf, 0xc2, 0xa3, 0xff}
+	ColorFg  = color.RGBA{0x1a, 0x1c, 0x2c, 0xff}
+	ColorDim = color.RGBA{0x6a, 0x76, 0x6e, 0xff}
+)