engine layer

konstructor/engine/engine.controller.go

@@ -0,0 +1,63 @@
+package engine
+
+import (
+	"fmt"
+	"game/konstructor/entity"
+	"reflect"
+
+	"github.com/hajimehoshi/ebiten"
+	"github.com/hajimehoshi/ebiten/inpututil"
+)
+
+type Controller struct {
+	PressedKey ebiten.Key
+	KeyMap     entity.KeyMap
+}
+
+func (c *Controller) Watch() {
+	values := reflect.ValueOf(c.KeyMap)
+
+	for i := 0; i < values.NumField(); i++ {
+		key := values.Field(i).Interface().(ebiten.Key)
+		if inpututil.IsKeyJustPressed(key) {
+			fmt.Printf("Key pressed: %s\n", key)
+			c.PressedKey = key
+		}
+	}
+}
+
+func (c *Controller) Clear() {
+	c.PressedKey = Controller{}.PressedKey
+}
+
+func (c *Controller) UpPressed() bool {
+	return c.PressedKey == c.KeyMap.Up
+}
+
+func (c *Controller) DownPressed() bool {
+	return c.PressedKey == c.KeyMap.Down
+}
+
+func (c *Controller) RightPressed() bool {
+	return c.PressedKey == c.KeyMap.Right
+}
+
+func (c *Controller) LeftPressed() bool {
+	return c.PressedKey == c.KeyMap.Left
+}
+
+func (c *Controller) Action0Pressed() bool {
+	return c.PressedKey == c.KeyMap.Action0
+}
+
+func (c *Controller) Action1Pressed() bool {
+	return c.PressedKey == c.KeyMap.Action1
+}
+
+func (c *Controller) Action2Pressed() bool {
+	return c.PressedKey == c.KeyMap.Action2
+}
+
+func (c *Controller) Action3Pressed() bool {
+	return c.PressedKey == c.KeyMap.Action3
+}

konstructor/engine/engine.go

@@ -0,0 +1,53 @@
+package engine
+
+import (
+	"game/konstructor/entity"
+	"os"
+
+	"github.com/hajimehoshi/ebiten"
+)
+
+type Engine struct {
+	Domain     entity.DomainInterface
+	Controller *Controller
+	Settings   *entity.Settings
+	KContext   *entity.KContext
+}
+
+func (e *Engine) Layout(outsideWidth, outsideHeight int) (int, int) {
+	return e.Settings.Screen.Width, e.Settings.Screen.Height
+}
+
+func (e *Engine) ScreenTypeIs(name string) bool {
+	return e.KContext.Screen.Type == name
+}
+
+func (e *Engine) Update(screen *ebiten.Image) error {
+	e.Controller.Watch()
+	if e.ScreenTypeIs("menu") {
+		e.MenuUpdate()
+	}
+	if e.ScreenTypeIs("dialog") {
+		e.DialogUpdate()
+	}
+	if e.ScreenTypeIs("playground") {
+		e.PlaygroundUpdate()
+	}
+	return nil
+}
+
+func (e *Engine) Draw(screen *ebiten.Image) {
+	if e.ScreenTypeIs("menu") {
+		e.MenuDraw(screen)
+	}
+	if e.ScreenTypeIs("dialog") {
+		e.DialogDraw(screen)
+	}
+	if e.ScreenTypeIs("playground") {
+		e.PlaygroundDraw(screen)
+	}
+	if e.Controller.Action3Pressed() {
+		os.Exit(1)
+	}
+	e.Controller.Clear()
+}

konstructor/engine/engine.utils.go

@@ -0,0 +1,46 @@
+package engine
+
+import (
+	"bytes"
+	"game/konstructor/entity"
+	"image"
+	"io/ioutil"
+	"log"
+
+	_ "image/png"
+
+	"github.com/hajimehoshi/ebiten"
+	"github.com/hajimehoshi/ebiten/examples/resources/fonts"
+	"golang.org/x/image/font"
+	"golang.org/x/image/font/opentype"
+)
+
+func LoadImage(path string) *ebiten.Image {
+
+	file, err := ioutil.ReadFile(path)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	img, _, err := image.Decode(bytes.NewReader(file))
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	out, err := ebiten.NewImageFromImage(img, 0)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return out
+}
+
+func GetFontFace(layout entity.FontLayout) font.Face {
+	tt, _ := opentype.Parse(fonts.MPlus1pRegular_ttf)
+	face, _ := opentype.NewFace(tt, &opentype.FaceOptions{
+		Size:    layout.DPI,
+		DPI:     layout.Size,
+		Hinting: font.HintingVertical,
+	})
+	return face
+}

konstructor/engine/screen.dialog.go

@@ -0,0 +1,34 @@
+package engine
+
+import (
+	"github.com/hajimehoshi/ebiten"
+	"github.com/hajimehoshi/ebiten/text"
+)
+
+func (e *Engine) DialogDraw(screen *ebiten.Image) {
+	dialog := e.Domain.GetDialog(e.KContext.Screen.Value)
+
+	face := GetFontFace(dialog.Layout.ChoiceFont)
+
+	for i, choice := range dialog.Choices {
+		offset := int(dialog.Layout.ChoiceFont.Size) * (i + 1)
+		text.Draw(screen, choice.Label+"\n", face, 8, offset, dialog.GetChoiceColor(i))
+	}
+}
+
+func (e *Engine) DialogUpdate() {
+	dialog := e.Domain.GetDialog(e.KContext.Screen.Value)
+
+	if e.Controller.UpPressed() && dialog.CurrentSelected != 0 {
+		dialog.CurrentSelected--
+	}
+
+	if e.Controller.DownPressed() && dialog.CurrentSelected != len(dialog.Choices)-1 {
+		dialog.CurrentSelected++
+	}
+
+	if e.Controller.Action0Pressed() {
+		dialog.Choices[dialog.CurrentSelected].Handler()
+	}
+	e.Domain.SetDialog(e.KContext.Screen.Value, dialog)
+}

konstructor/engine/screen.menu.go

@@ -0,0 +1,35 @@
+package engine
+
+import (
+	"github.com/hajimehoshi/ebiten"
+	"github.com/hajimehoshi/ebiten/text"
+)
+
+func (e *Engine) MenuDraw(screen *ebiten.Image) {
+	menu := e.Domain.GetMenu(e.KContext.Screen.Value)
+	face := GetFontFace(menu.Layout.MenuItemFont)
+
+	for i, menu_item := range menu.MenuItems {
+		color := menu.GetMenuItemColor(i)
+		offset := int(menu.Layout.MenuItemFont.Size) * (i + 1)
+		text.Draw(screen, menu_item.Label+"\n", face, 8, offset, color)
+	}
+}
+
+func (e *Engine) MenuUpdate() {
+	menu := e.Domain.GetMenu(e.KContext.Screen.Value)
+
+	if e.Controller.UpPressed() && menu.CurrentSelected != 0 {
+		menu.CurrentSelected--
+	}
+
+	if e.Controller.DownPressed() && menu.CurrentSelected != len(menu.MenuItems)-1 {
+		menu.CurrentSelected++
+	}
+
+	if e.Controller.Action0Pressed() {
+		menu.MenuItems[menu.CurrentSelected].Handler()
+	}
+
+	e.Domain.SetMenu(e.KContext.Screen.Value, menu)
+}

konstructor/engine/screen.playground.go

@@ -0,0 +1,13 @@
+package engine
+
+import (
+	"github.com/hajimehoshi/ebiten"
+)
+
+func (e *Engine) PlaygroundDraw(screen *ebiten.Image) {
+	e.Domain.GetLevel(e.KContext.CurrentLevel)
+}
+
+func (e *Engine) PlaygroundUpdate() {
+	e.Domain.GetLevel(e.KContext.CurrentLevel)
+}