mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-27 12:18:55 +01:00
350 lines
7.3 KiB
Go
350 lines
7.3 KiB
Go
// Copyright 2015 Hajime Hoshi
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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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// +build ignore
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package main
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import (
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"bytes"
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"errors"
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"image"
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"image/color"
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"image/png"
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"io/ioutil"
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"log"
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"os"
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"path/filepath"
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"text/template"
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"github.com/hajimehoshi/file2byteslice"
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"golang.org/x/image/font"
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"golang.org/x/image/font/opentype"
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"github.com/hajimehoshi/ebiten/v2"
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"github.com/hajimehoshi/ebiten/v2/text"
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)
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const (
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arcadeFontSize = 8
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)
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var (
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arcadeFont font.Face
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)
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func init() {
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f, err := os.Open(filepath.Join("..", "..", "resources", "fonts", "pressstart2p.ttf"))
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if err != nil {
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log.Fatal(err)
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}
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defer f.Close()
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b, err := ioutil.ReadAll(f)
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if err != nil {
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log.Fatal(err)
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}
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tt, err := opentype.Parse(b)
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if err != nil {
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log.Fatal(err)
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}
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const dpi = 72
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arcadeFont, err = opentype.NewFace(tt, &opentype.FaceOptions{
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Size: arcadeFontSize,
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DPI: dpi,
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Hinting: font.HintingFull,
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})
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if err != nil {
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log.Fatal(err)
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}
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}
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var keyboardKeys = [][]string{
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{"Esc", "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "-", "=", "\\", "`", " "},
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{"Tab", "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P", "[", "]", "BS"},
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{"Ctrl", "A", "S", "D", "F", "G", "H", "J", "K", "L", ";", "'", "Enter"},
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{"Shift", "Z", "X", "C", "V", "B", "N", "M", ",", ".", "/", " "},
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{" ", "Alt", "Space", " ", " "},
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{},
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{"", "Up", ""},
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{"Left", "Down", "Right"},
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}
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func keyDisplayNameToKey(name string) ebiten.Key {
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switch name {
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case "Esc":
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return ebiten.KeyEscape
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case "Tab":
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return ebiten.KeyTab
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case "Ctrl":
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return ebiten.KeyControl
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case "Shift":
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return ebiten.KeyShift
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case "Alt":
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return ebiten.KeyAlt
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case "Space":
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return ebiten.KeySpace
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case "Up":
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return ebiten.KeyUp
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case "Left":
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return ebiten.KeyLeft
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case "Down":
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return ebiten.KeyDown
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case "Right":
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return ebiten.KeyRight
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case "BS":
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return ebiten.KeyBackspace
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case "Enter":
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return ebiten.KeyEnter
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case "-":
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return ebiten.KeyMinus
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case "=":
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return ebiten.KeyEqual
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case "\\":
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return ebiten.KeyBackslash
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case "`":
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return ebiten.KeyGraveAccent
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case "[":
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return ebiten.KeyLeftBracket
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case "]":
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return ebiten.KeyRightBracket
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case ";":
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return ebiten.KeySemicolon
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case "'":
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return ebiten.KeyApostrophe
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case ",":
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return ebiten.KeyComma
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case ".":
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return ebiten.KeyPeriod
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case "/":
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return ebiten.KeySlash
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}
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if len(name) != 1 {
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panic("not reached: unknown key " + name)
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}
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c := name[0]
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if '0' <= c && c <= '9' {
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return ebiten.Key0 + ebiten.Key(c-'0')
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}
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if 'A' <= c && c <= 'Z' {
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return ebiten.KeyA + ebiten.Key(c-'A')
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}
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panic("not reached: unknown key " + name)
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}
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func drawKey(t *ebiten.Image, name string, x, y, width int) {
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const height = 16
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width--
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img := ebiten.NewImage(width, height)
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p := make([]byte, width*height*4)
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for j := 0; j < height; j++ {
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for i := 0; i < width; i++ {
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x := (i + j*width) * 4
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switch j {
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case 0, height - 1:
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if 3 <= i && i <= width-4 {
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p[x] = 0xff
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p[x+1] = 0xff
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p[x+2] = 0xff
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p[x+3] = 0xff
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}
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case 1, height - 2:
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if i == 2 || i == width-3 {
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p[x] = 0xff
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p[x+1] = 0xff
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p[x+2] = 0xff
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p[x+3] = 0xff
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}
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case 2, height - 3:
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if i == 1 || i == width-2 {
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p[x] = 0xff
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p[x+1] = 0xff
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p[x+2] = 0xff
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p[x+3] = 0xff
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}
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default:
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if i == 0 || i == width-1 {
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p[x] = 0xff
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p[x+1] = 0xff
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p[x+2] = 0xff
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p[x+3] = 0xff
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}
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}
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}
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}
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img.ReplacePixels(p)
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const offset = 4
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text.Draw(img, name, arcadeFont, offset, arcadeFontSize+offset+1, color.White)
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op := &ebiten.DrawImageOptions{}
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op.GeoM.Translate(float64(x), float64(y))
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t.DrawImage(img, op)
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}
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func outputKeyboardImage() (map[ebiten.Key]image.Rectangle, error) {
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keyMap := map[ebiten.Key]image.Rectangle{}
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img := ebiten.NewImage(320, 240)
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x, y := 0, 0
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for j, line := range keyboardKeys {
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x = 0
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const height = 18
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for i, keyDisplayName := range line {
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width := 16
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switch j {
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default:
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switch i {
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case 0:
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width = 16 + 8*(j+2)
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case len(line) - 1:
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if j > 0 {
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width = 16 + 8*(j+2)
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}
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}
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case 4:
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switch i {
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case 0:
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width = 16 + 8*(j+2)
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case 1:
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width = 16 * 2
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case 2:
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width = 16 * 5
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case 3:
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width = 16 * 2
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case 4:
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width = 16 + 8*(j+2)
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}
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case 6, 7:
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width = 16 * 3
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}
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if keyDisplayName != "" {
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drawKey(img, keyDisplayName, x, y, width)
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if keyDisplayName != " " {
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key := keyDisplayNameToKey(keyDisplayName)
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keyMap[key] = image.Rect(x, y, x+width, y+height)
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}
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}
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x += width
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}
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y += height
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}
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var buf bytes.Buffer
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if err := png.Encode(&buf, img); err != nil {
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return nil, err
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}
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out, err := os.Create("../../resources/images/keyboard/keyboard.go")
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if err != nil {
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return nil, err
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}
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defer out.Close()
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if err := file2byteslice.Write(out, &buf, false, "", "keyboard", "Keyboard_png"); err != nil {
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return nil, err
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}
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return keyMap, nil
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}
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const license = `// Copyright 2013 The Ebiten 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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`
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const keyRectTmpl = `{{.License}}
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// Code generated by gen.go using 'go generate'. DO NOT EDIT.
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package keyboard
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import (
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"image"
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"github.com/hajimehoshi/ebiten/v2"
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)
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var keyboardKeyRects = map[ebiten.Key]image.Rectangle{}
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func init() {
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{{range $key, $rect := .KeyRectsMap}} keyboardKeyRects[ebiten.Key{{$key}}] = image.Rect({{$rect.Min.X}}, {{$rect.Min.Y}}, {{$rect.Max.X}}, {{$rect.Max.Y}})
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{{end}}}
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func KeyRect(key ebiten.Key) (image.Rectangle, bool) {
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r, ok := keyboardKeyRects[key]
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return r, ok
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}`
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func outputKeyRectsGo(k map[ebiten.Key]image.Rectangle) error {
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path := "keyrects.go"
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f, err := os.Create(path)
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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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tmpl, err := template.New(path).Parse(keyRectTmpl)
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if err != nil {
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return err
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}
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return tmpl.Execute(f, map[string]interface{}{
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"License": license,
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"KeyRectsMap": k,
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})
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}
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var regularTermination = errors.New("regular termination")
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type game struct {
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rects map[ebiten.Key]image.Rectangle
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}
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func (g *game) Update() error {
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var err error
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g.rects, err = outputKeyboardImage()
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if err != nil {
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return err
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}
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return regularTermination
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}
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func (g *game) Draw(_ *ebiten.Image) {
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}
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func (g *game) Layout(outw, outh int) (int, int) {
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return 256, 256
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}
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func main() {
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g := &game{}
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if err := ebiten.RunGame(g); err != regularTermination {
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log.Fatal(err)
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}
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if err := outputKeyRectsGo(g.rects); err != nil {
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log.Fatal(err)
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}
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}
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