/
main.go
77 lines (61 loc) · 1.67 KB
/
main.go
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// Copyright (c) 2020, Roel Schut. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
_ "embed"
"image/color"
"os"
"path"
"runtime"
"github.com/go-pogo/errors"
sdlimg "github.com/veandco/go-sdl2/img"
"github.com/veandco/go-sdl2/sdl"
"github.com/roeldev/go-sdl2-experiments/pkg/sdlkit"
"github.com/roeldev/go-sdl2-experiments/pkg/sdlkit/colors"
)
//go:embed "img.ico"
var icon []byte
func resolveRootDir(skipCallers int) (string, error) {
_, dir, _, ok := runtime.Caller(skipCallers)
if !ok {
return "", errors.New("unable to resolve project dir location")
}
return path.Dir(dir), nil
}
func main() {
sdlkit.FailOnErr(sdl.Init(sdl.INIT_VIDEO))
defer sdl.Quit()
sdlkit.FailOnErr(sdlimg.Init(sdlimg.INIT_PNG))
defer sdlimg.Quit()
dir, err := resolveRootDir(0)
if err != nil {
sdlkit.FailOnErr(err)
}
stage, err := sdlkit.NewStage("sdlkit example", 400, 300, sdlkit.DefaultOptions)
if err != nil {
sdlkit.FailOnErr(err)
}
stage.BgColor = color.RGBA(colors.White)
_ = stage.SetWindowIcon(icon)
defer stage.Destroy()
tx, err := sdlimg.LoadTexture(stage.Renderer(), dir+"/img.png")
if err != nil {
sdlkit.FailOnErr(err)
}
// render to window
sdlkit.FailOnErr(stage.ClearScreen())
sdlkit.FailOnErr(sdlkit.Render(stage.Renderer(),
drawSquare(100, 10, 190, colors.RandRed(sdlkit.RNG())),
drawCircle(30, 130, 80, colors.RandBlue(sdlkit.RNG())),
drawImg(tx, 5, 100, 50, sdl.FLIP_NONE),
drawImg(tx, 1, 10, 10, sdl.FLIP_HORIZONTAL|sdl.FLIP_VERTICAL),
))
stage.PresentScreen()
for {
switch sdl.PollEvent().(type) {
case *sdl.QuitEvent:
os.Exit(0)
}
}
}