mth/ebiten
1
0
Fork 0
mirror of https://github.com/hajimehoshi/ebiten.git synced 2025-02-03 22:44:28 +01:00
Code Issues Packages Projects Releases Wiki Activity

examples/2048: Draw texts

Browse Source
This commit is contained in:
Hajime Hoshi 2016-07-29 01:52:21 +09:00
parent 90b6e3871a
commit 399d29b1a0
4 changed files with 29 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
examples/2048/2048/board.go
View File

@ -18,8 +18,10 @@ import (
"image/color" "image/color"
"math/rand" "math/rand"
"sort" "sort"
"strconv"
"github.com/hajimehoshi/ebiten" "github.com/hajimehoshi/ebiten"
"github.com/hajimehoshi/ebiten/examples/common"
) )
type Board struct { type Board struct {
@ -144,8 +146,8 @@ func (b *Board) Move(dir Dir) {
} }
const ( const (
tileSize = 80 tileSize = 40
tileMargin = 4 tileMargin = 2
) )
var ( var (
@ -170,9 +172,11 @@ func colorToScale(clr color.Color) (float64, float64, float64, float64) {
bf := float64(b) / 0xffff bf := float64(b) / 0xffff
af := float64(a) / 0xffff af := float64(a) / 0xffff
// Convert to non-premultiplied alpha components. // Convert to non-premultiplied alpha components.
rf /= af if 0 < af {
gf /= af rf /= af
bf /= af gf /= af
bf /= af
}
return rf, gf, bf, af return rf, gf, bf, af
} }
@ -202,6 +206,18 @@ func (b *Board) Draw(screen *ebiten.Image) error {
if err := screen.DrawImage(tileImage, op); err != nil { if err := screen.DrawImage(tileImage, op); err != nil {
return err return err
} }
if t != nil {
str := strconv.Itoa(t.value)
scale := 2
if 2 < len(str) {
scale = 1
}
w := common.ArcadeFont.TextWidth(str) * scale
h := common.ArcadeFont.TextHeight(str) * scale
x := x + (tileSize-w)/2
y := y + (tileSize-h)/2
common.ArcadeFont.DrawText(screen, str, x, y, scale, tileColor(t.value))
}
} }
} }
return nil return nil

4
examples/2048/2048/game.go
View File

@ -26,8 +26,8 @@ func init() {
} }
const ( const (
ScreenWidth = 420 ScreenWidth = 210
ScreenHeight = 600 ScreenHeight = 300
boardSize = 4 boardSize = 4
) )

2
examples/2048/main.go
View File

@ -39,7 +39,7 @@ func update(screen *ebiten.Image) error {
} }
func main() { func main() {
if err := ebiten.Run(update, twenty48.ScreenWidth, twenty48.ScreenHeight, 1, "2048 (Ebiten Demo)"); err != nil { if err := ebiten.Run(update, twenty48.ScreenWidth, twenty48.ScreenHeight, 2, "2048 (Ebiten Demo)"); err != nil {
log.Fatal(err) log.Fatal(err)
} }
} }

5
examples/common/font.go
View File

@ -45,6 +45,11 @@ func (f *Font) TextWidth(str string) int {
return f.charWidth * len(str) return f.charWidth * len(str)
} }
func (f *Font) TextHeight(str string) int {
// TODO: Take care about '\n'
return f.charHeight
}
func init() { func init() {
dir := "" dir := ""
if runtime.GOARCH != "js" { if runtime.GOARCH != "js" {