mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-19 21:02:18 +02:00
91 lines
1.9 KiB
Go
91 lines
1.9 KiB
Go
// Copyright 2022 The Ebitengine Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build ignore
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package main
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import (
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"bufio"
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"fmt"
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"image"
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"image/color"
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"image/png"
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"os"
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"github.com/hajimehoshi/bitmapfont/v3"
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"golang.org/x/image/font"
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"golang.org/x/image/math/fixed"
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)
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func main() {
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if err := run(); err != nil {
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fmt.Fprintf(os.Stderr, "%v\n", err)
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}
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}
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func run() error {
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// These values are copied from an example in github.com/hajimehoshi/bitmapfont.
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const (
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charWidth = 6
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lineHeight = 16
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)
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var lines []string
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for j := 0; j < 8; j++ {
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var line string
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for i := 0; i < 32; i++ {
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line += string(rune(i + j*32))
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}
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lines = append(lines, line)
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}
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dst := image.NewRGBA(image.Rect(0, 0, charWidth*32, lineHeight*8))
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for i, clr := range []color.Color{color.RGBA{0, 0, 0, 0x80}, color.White} {
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var offsetX int
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var offsetY int
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if i == 0 {
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offsetX = 1
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offsetY = 1
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}
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d := font.Drawer{
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Dst: dst,
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Src: image.NewUniform(clr),
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Face: bitmapfont.Face,
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Dot: fixed.Point26_6{X: fixed.I(offsetX), Y: bitmapfont.Face.Metrics().Ascent + fixed.I(offsetY)},
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}
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for _, line := range lines {
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d.Dot.X = fixed.I(offsetX)
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d.DrawString(line)
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d.Dot.Y += fixed.I(lineHeight)
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}
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}
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f, err := os.Create("text.png")
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if err != nil {
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return err
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}
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defer f.Close()
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w := bufio.NewWriter(f)
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if err := png.Encode(w, dst); err != nil {
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return err
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}
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if err := w.Flush(); err != nil {
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return err
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}
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return nil
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}
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