Allow scaling of entire window

go.mod

@@ -2,4 +2,7 @@ module github.com/stevenhowes/GoRetro
 
 go 1.17
 
-require github.com/veandco/go-sdl2 v0.4.10
+require (
+	github.com/stevenhowes/PakGo v0.0.0-20220113222155-3617b0daa3c0
+	github.com/veandco/go-sdl2 v0.4.10
+)

go.sum

@@ -1,2 +1,4 @@
+github.com/stevenhowes/PakGo v0.0.0-20220113222155-3617b0daa3c0 h1:2B+TF/y2bKSFiIryww/IiokKVmFZYd7t8h3iqcFuKv0=
+github.com/stevenhowes/PakGo v0.0.0-20220113222155-3617b0daa3c0/go.mod h1:L7pK9BbOuXj6fZtD0EtTPpqH9QBCldg4Sqh1wfSmduI=
 github.com/veandco/go-sdl2 v0.4.10 h1:8QoD2bhWl7SbQDflIAUYWfl9Vq+mT8/boJFAUzAScgY=
 github.com/veandco/go-sdl2 v0.4.10/go.mod h1:OROqMhHD43nT4/i9crJukyVecjPNYYuCofep6SNiAjY=

goretro.go

@@ -14,6 +14,7 @@ var ViewPort struct {
 
 var Config struct {
 	WindowSize             VectorInt32
+	Scale                  int32
 	TargetTicksPerSecond   float64
 	DebugStatePrintSeconds float64
 
@@ -34,12 +35,12 @@ func Init() (*sdl.Renderer, *sdl.Window) {
 		return nil, nil
 	}
 
-	fmt.Printf("Created window %d x %d\n", Config.WindowSize.X, Config.WindowSize.Y)
+	fmt.Printf("Created window %d x %d\n", Config.WindowSize.X*int32(Config.Scale), Config.WindowSize.Y*int32(Config.Scale))
 
 	window, err := sdl.CreateWindow(
 		"GoEscape",
 		sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED,
-		Config.WindowSize.X, Config.WindowSize.Y,
+		Config.WindowSize.X*int32(Config.Scale), Config.WindowSize.Y*int32(Config.Scale),
 		sdl.WINDOW_OPENGL)
 	if err != nil {
 		fmt.Println("initializing window:", err)

utils_texture.go

@@ -36,9 +36,9 @@ func drawTexture(
 	return renderer.CopyEx(
 		tex,
 		&sdl.Rect{X: sheetposition.X, Y: sheetposition.Y, W: size.X, H: size.Y},
-		&sdl.Rect{X: int32(position.X), Y: int32(position.Y), W: size.X, H: size.Y},
+		&sdl.Rect{X: int32(position.X) * Config.Scale, Y: int32(position.Y) * Config.Scale, W: size.X * Config.Scale, H: size.Y * Config.Scale},
 		rotation,
-		&sdl.Point{X: size.X / 2, Y: size.Y / 2},
+		&sdl.Point{X: (size.X * Config.Scale) / 2, Y: (size.Y * Config.Scale) / 2},
 		sdl.FLIP_NONE)
 }