From 718f30578dbedb3d352e7e1551d60c72002dd5ad Mon Sep 17 00:00:00 2001
From: Thomas von Dein <tom@vondein.org>
Date: Wed, 26 Nov 2025 20:40:35 +0100
Subject: [PATCH] fix linting errors

---
 config.go | 15 ++++-----------
 game.go   |  6 ++++--
 main.go   |  2 +-
 3 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/config.go b/config.go
index f3f2391..d616006 100644
--- a/config.go
+++ b/config.go
@@ -18,6 +18,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
 package main
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -81,7 +82,7 @@ func InitConfig() (*Config, error) {
 	// setup custom usage
 	flagset := flag.NewFlagSet("config", flag.ContinueOnError)
 	flagset.Usage = func() {
-		fmt.Println(Usage)
+		_, _ = fmt.Println(Usage)
 		os.Exit(0)
 	}
 
@@ -165,13 +166,13 @@ func SanitiyCheck(conf *Config) error {
 
 	geo := strings.Split(conf.Geo, "x")
 	if len(geo) != 2 {
-		return fmt.Errorf(geoerr)
+		return errors.New(geoerr)
 	}
 
 	w, errw := strconv.Atoi(geo[0])
 	h, errh := strconv.Atoi(geo[1])
 	if errw != nil || errh != nil {
-		return fmt.Errorf(geoerr)
+		return errors.New(geoerr)
 	}
 
 	conf.Width = w
@@ -195,11 +196,3 @@ func SanitiyCheck(conf *Config) error {
 
 	return nil
 }
-
-func fileExists(filename string) bool {
-	info, err := os.Stat(filename)
-	if os.IsNotExist(err) {
-		return false
-	}
-	return !info.IsDir()
-}
diff --git a/game.go b/game.go
index a8023d8..bd48608 100644
--- a/game.go
+++ b/game.go
@@ -46,7 +46,9 @@ func LoadImage(name string) (*ebiten.Image, error) {
 	if err != nil {
 		return nil, err
 	}
-	defer fd.Close()
+	defer func() {
+		_ = fd.Close()
+	}()
 
 	img, _, err := image.Decode(fd)
 	if err != nil {
@@ -89,7 +91,7 @@ func (game *Game) Init() error {
 	game.Shader = shader
 
 	// user can customize TPS
-	ebiten.SetMaxTPS(game.Conf.TPS)
+	ebiten.SetTPS(game.Conf.TPS)
 
 	// setup shader bounds, by default we use window size
 	game.ShaderBounds = image.Rect(0, 0, game.Conf.Width, game.Conf.Height)
diff --git a/main.go b/main.go
index 5cfe6ec..a86b4cb 100644
--- a/main.go
+++ b/main.go
@@ -64,7 +64,7 @@ func main() {
 
 	ebiten.SetWindowSize(game.Conf.Width, game.Conf.Height)
 	ebiten.SetWindowTitle("Kage shader viewer")
-	ebiten.SetWindowResizable(true)
+	ebiten.SetWindowResizingMode(ebiten.WindowResizingModeEnabled)
 
 	if err := ebiten.RunGame(game); err != nil {
 		log.Fatal(err)