我正在尝试从 https://github.com/veandco/go-sdl2 导入 sdl2 包。我按照Windows readme.md 上显示的所有步骤进行操作。安装 mingw64 并在 cmd 上执行：
go get -v github.com/veandco/go-sdl2/sdl
它工作正常，但是当我试图做：
go run .\sdl2.go
我得到这个错误：
sdl2.go:4:2: no required module provides package github.com/veandco/go-sdl2/sdl: working directory is not part of a module
在我的另一台计算机中工作完美，但是当我克隆此存储库并将软件包安装到另一台笔记本电脑上时，我遇到了很多问题。为了获得有关该案例的更多信息，我将我的测试源放在这里以获取更多信息：
package main
import (
"github.com/veandco/go-sdl2/sdl"
"fmt"
)
const winWidth, winHeight int = 800, 600
type color struct {
r, g, b byte
}
func setPixel(x, y int, c color, pixels []byte) {
index := (y * winWidth + x) * 4
if index < len(pixels)-4 && index >= 0 {
pixels[index] = c.r
pixels[index+1] = c.g
pixels[index+2] = c.b
}
}
func main() {
winWidth := 800
winHeight := 600
window,err := sdl.CreateWindow("Testing SDL2", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED,
int32(winWidth) ,int32(winHeight), sdl.WINDOW_SHOWN)
if err != nil {
fmt.Println(err)
return
}
defer window.Destroy()
renderer, err := sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED)
if err != nil {
fmt.Println(err)
return
}
defer renderer.Destroy()
tex, err := renderer.CreateTexture(sdl.PIXELFORMAT_ABGR8888, sdl.TEXTUREACCESS_STREAMING, int32(winWidth), int32(winHeight))
if err != nil {
fmt.Println(err)
return
}
defer tex.Destroy()
pixels := make([]byte, winWidth*winHeight*4)
for y := 0; y < winHeight; y++ {
for x := 0; x < winWidth; x++ {
setPixel(x,y, color{byte(x % 255),byte(y % 255), 0}, pixels)
}
}
tex.Update(nil,pixels,winWidth*4)
renderer.Copy(tex,nil,nil)
renderer.Present()
sdl.Delay(2000)
}
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