2013-07-02 18:27:04 +02:00
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package input
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import (
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2013-07-04 16:57:53 +02:00
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"fmt"
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2013-10-14 04:34:58 +02:00
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"github.com/hajimehoshi/go-ebiten"
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"github.com/hajimehoshi/go-ebiten/graphics"
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"github.com/hajimehoshi/go-ebiten/graphics/matrix"
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2013-07-04 16:57:53 +02:00
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"image"
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"os"
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2013-07-02 18:27:04 +02:00
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)
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type Input struct {
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2013-10-21 15:18:10 +02:00
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textTextureId graphics.TextureId
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2013-10-17 17:45:12 +02:00
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inputState ebiten.InputState
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2013-07-02 18:27:04 +02:00
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}
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func New() *Input {
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return &Input{}
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}
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2013-10-20 08:51:26 +02:00
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func (game *Input) InitTextures(tf graphics.TextureFactory) {
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2013-07-04 16:57:53 +02:00
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file, err := os.Open("images/text.png")
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if err != nil {
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panic(err)
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}
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defer file.Close()
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img, _, err := image.Decode(file)
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if err != nil {
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panic(err)
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}
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2013-11-28 18:38:18 +01:00
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if game.textTextureId, err = tf.CreateTextureFromImage(img); err != nil {
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2013-07-04 16:57:53 +02:00
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panic(err)
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}
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}
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2013-07-05 14:02:17 +02:00
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func (game *Input) Update(context ebiten.GameContext) {
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game.inputState = context.InputState()
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}
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2013-07-04 16:57:53 +02:00
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func (game *Input) Draw(g graphics.Context) {
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2013-10-11 20:20:13 +02:00
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g.Fill(128, 128, 255)
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2013-07-04 16:57:53 +02:00
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str := fmt.Sprintf(`Input State:
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X: %d
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Y: %d`, game.inputState.X, game.inputState.Y)
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game.drawText(g, str, 5, 5)
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}
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func (game *Input) drawText(g graphics.Context, text string, x, y int) {
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const letterWidth = 6
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const letterHeight = 16
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parts := []graphics.TexturePart{}
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textX := 0
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textY := 0
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for _, c := range text {
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if c == '\n' {
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textX = 0
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textY += letterHeight
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continue
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}
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code := int(c)
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x := (code % 32) * letterWidth
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y := (code / 32) * letterHeight
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source := graphics.Rect{x, y, letterWidth, letterHeight}
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parts = append(parts, graphics.TexturePart{
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LocationX: textX,
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LocationY: textY,
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Source: source,
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})
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textX += letterWidth
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}
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geometryMatrix := matrix.IdentityGeometry()
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geometryMatrix.Translate(float64(x), float64(y))
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colorMatrix := matrix.IdentityColor()
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2013-10-21 15:18:10 +02:00
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g.DrawTextureParts(game.textTextureId, parts,
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geometryMatrix, colorMatrix)
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}
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