input: Add numpad keys except for Edge browser (#580)

genkeys.go

@@ -82,6 +82,18 @@ func init() {
 	for i := 1; i <= 12; i++ {
 		nameToCodes["F"+strconv.Itoa(i)] = []string{"F" + strconv.Itoa(i)}
 	}
+	// Numpad
+	// https://www.w3.org/TR/uievents-code/#key-numpad-section
+	for c := '0'; c <= '9'; c++ {
+		nameToCodes["KP"+string(c)] = []string{"Numpad" + string(c)}
+	}
+	nameToCodes["KPDecimal"] = []string{"NumpadDecimal"}
+	nameToCodes["KPDivide"] = []string{"NumpadDivide"}
+	nameToCodes["KPMultiply"] = []string{"NumpadMultiply"}
+	nameToCodes["KPSubtract"] = []string{"NumpadSubtract"}
+	nameToCodes["KPAdd"] = []string{"NumpadAdd"}
+	nameToCodes["KPEnter"] = []string{"NumpadEnter"}
+	nameToCodes["KPEqual"] = []string{"NumpadEqual"}
 }
 
 func init() {
@@ -129,6 +141,7 @@ func init() {
 	for i := 1; i <= 12; i++ {
 		keyCodeToNameEdge[0x70+i-1] = "F" + strconv.Itoa(i)
 	}
+	// TODO: Add numpad keys
 }
 
 const ebitenKeysTmpl = `{{.License}}

internal/input/keys.go

@@ -83,6 +83,23 @@ const (
 	KeyGraveAccent
 	KeyHome
 	KeyInsert
+	KeyKP0
+	KeyKP1
+	KeyKP2
+	KeyKP3
+	KeyKP4
+	KeyKP5
+	KeyKP6
+	KeyKP7
+	KeyKP8
+	KeyKP9
+	KeyKPAdd
+	KeyKPDecimal
+	KeyKPDivide
+	KeyKPEnter
+	KeyKPEqual
+	KeyKPMultiply
+	KeyKPSubtract
 	KeyLeft
 	KeyLeftBracket
 	KeyMinus

internal/input/keys_glfw.go

@@ -88,6 +88,23 @@ var glfwKeyCodeToKey = map[glfw.Key]Key{
 	glfw.KeyGraveAccent:  KeyGraveAccent,
 	glfw.KeyHome:         KeyHome,
 	glfw.KeyInsert:       KeyInsert,
+	glfw.KeyKP0:          KeyKP0,
+	glfw.KeyKP1:          KeyKP1,
+	glfw.KeyKP2:          KeyKP2,
+	glfw.KeyKP3:          KeyKP3,
+	glfw.KeyKP4:          KeyKP4,
+	glfw.KeyKP5:          KeyKP5,
+	glfw.KeyKP6:          KeyKP6,
+	glfw.KeyKP7:          KeyKP7,
+	glfw.KeyKP8:          KeyKP8,
+	glfw.KeyKP9:          KeyKP9,
+	glfw.KeyKPAdd:        KeyKPAdd,
+	glfw.KeyKPDecimal:    KeyKPDecimal,
+	glfw.KeyKPDivide:     KeyKPDivide,
+	glfw.KeyKPEnter:      KeyKPEnter,
+	glfw.KeyKPEqual:      KeyKPEqual,
+	glfw.KeyKPMultiply:   KeyKPMultiply,
+	glfw.KeyKPSubtract:   KeyKPSubtract,
 	glfw.KeyLeft:         KeyLeft,
 	glfw.KeyLeftBracket:  KeyLeftBracket,
 	glfw.KeyMinus:        KeyMinus,

internal/input/keys_js.go

@@ -166,6 +166,57 @@ var keyToCodes = map[Key][]string{
 	KeyK: {
 		"KeyK",
 	},
+	KeyKP0: {
+		"Numpad0",
+	},
+	KeyKP1: {
+		"Numpad1",
+	},
+	KeyKP2: {
+		"Numpad2",
+	},
+	KeyKP3: {
+		"Numpad3",
+	},
+	KeyKP4: {
+		"Numpad4",
+	},
+	KeyKP5: {
+		"Numpad5",
+	},
+	KeyKP6: {
+		"Numpad6",
+	},
+	KeyKP7: {
+		"Numpad7",
+	},
+	KeyKP8: {
+		"Numpad8",
+	},
+	KeyKP9: {
+		"Numpad9",
+	},
+	KeyKPAdd: {
+		"NumpadAdd",
+	},
+	KeyKPDecimal: {
+		"NumpadDecimal",
+	},
+	KeyKPDivide: {
+		"NumpadDivide",
+	},
+	KeyKPEnter: {
+		"NumpadEnter",
+	},
+	KeyKPEqual: {
+		"NumpadEqual",
+	},
+	KeyKPMultiply: {
+		"NumpadMultiply",
+	},
+	KeyKPSubtract: {
+		"NumpadSubtract",
+	},
 	KeyL: {
 		"KeyL",
 	},

keys.go

@@ -93,6 +93,23 @@ const (
 	KeyGraveAccent  Key = Key(input.KeyGraveAccent)
 	KeyHome         Key = Key(input.KeyHome)
 	KeyInsert       Key = Key(input.KeyInsert)
+	KeyKP0          Key = Key(input.KeyKP0)
+	KeyKP1          Key = Key(input.KeyKP1)
+	KeyKP2          Key = Key(input.KeyKP2)
+	KeyKP3          Key = Key(input.KeyKP3)
+	KeyKP4          Key = Key(input.KeyKP4)
+	KeyKP5          Key = Key(input.KeyKP5)
+	KeyKP6          Key = Key(input.KeyKP6)
+	KeyKP7          Key = Key(input.KeyKP7)
+	KeyKP8          Key = Key(input.KeyKP8)
+	KeyKP9          Key = Key(input.KeyKP9)
+	KeyKPAdd        Key = Key(input.KeyKPAdd)
+	KeyKPDecimal    Key = Key(input.KeyKPDecimal)
+	KeyKPDivide     Key = Key(input.KeyKPDivide)
+	KeyKPEnter      Key = Key(input.KeyKPEnter)
+	KeyKPEqual      Key = Key(input.KeyKPEqual)
+	KeyKPMultiply   Key = Key(input.KeyKPMultiply)
+	KeyKPSubtract   Key = Key(input.KeyKPSubtract)
 	KeyLeft         Key = Key(input.KeyLeft)
 	KeyLeftBracket  Key = Key(input.KeyLeftBracket)
 	KeyMinus        Key = Key(input.KeyMinus)
@@ -240,6 +257,40 @@ func keyNameToKey(name string) (Key, bool) {
 		return KeyHome, true
 	case "insert":
 		return KeyInsert, true
+	case "kp0":
+		return KeyKP0, true
+	case "kp1":
+		return KeyKP1, true
+	case "kp2":
+		return KeyKP2, true
+	case "kp3":
+		return KeyKP3, true
+	case "kp4":
+		return KeyKP4, true
+	case "kp5":
+		return KeyKP5, true
+	case "kp6":
+		return KeyKP6, true
+	case "kp7":
+		return KeyKP7, true
+	case "kp8":
+		return KeyKP8, true
+	case "kp9":
+		return KeyKP9, true
+	case "kpadd":
+		return KeyKPAdd, true
+	case "kpdecimal":
+		return KeyKPDecimal, true
+	case "kpdivide":
+		return KeyKPDivide, true
+	case "kpenter":
+		return KeyKPEnter, true
+	case "kpequal":
+		return KeyKPEqual, true
+	case "kpmultiply":
+		return KeyKPMultiply, true
+	case "kpsubtract":
+		return KeyKPSubtract, true
 	case "left":
 		return KeyLeft, true
 	case "leftbracket":