go-sdl2-examples/examples/text/text.go

66 lines
1.4 KiB
Go

package main
import (
"fmt"
"os"
"github.com/veandco/go-sdl2/sdl"
"github.com/veandco/go-sdl2/ttf"
)
var winTitle string = "Text"
var winWidth, winHeight int32 = 800, 600
func run() int {
var window *sdl.Window
var font *ttf.Font
var surface *sdl.Surface
var solid *sdl.Surface
var err error
sdl.Init(sdl.INIT_VIDEO)
if err := ttf.Init(); err != nil {
fmt.Fprintf(os.Stderr, "Failed to initialize TTF: %s\n", err)
return 1
}
if window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_SHOWN); err != nil {
fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", err)
return 2
}
defer window.Destroy()
if font, err = ttf.OpenFont("../../assets/test.ttf", 32); err != nil {
fmt.Fprintf(os.Stderr, "Failed to open font: %s\n", err)
return 4
}
defer font.Close()
if solid, err = font.RenderUTF8Solid("Hello, World!", sdl.Color{255, 0, 0, 255}); err != nil {
fmt.Fprintf(os.Stderr, "Failed to render text: %s\n", err)
return 5
}
defer solid.Free()
if surface, err = window.GetSurface(); err != nil {
fmt.Fprintf(os.Stderr, "Failed to get window surface: %s\n", err)
return 6
}
if err = solid.Blit(nil, surface, nil); err != nil {
fmt.Fprintf(os.Stderr, "Failed to put text on window surface: %s\n", err)
return 7
}
// Show the pixels for a while
window.UpdateSurface()
sdl.Delay(3000)
return 0
}
func main() {
os.Exit(run())
}