input: Add numpad keys for Edge (#580)

genkeys.go

@@ -129,6 +129,16 @@ func init() {
 		0xdd: "RightBracket",
 		0xc0: "GraveAccent",
 		0x08: "Backspace",
+		0x90: "NumLock",
+		0x6e: "KPDecimal",
+		0x6f: "KPDivide",
+		0x6a: "KPMultiply",
+		0x6d: "KPSubtract",
+		0x6b: "KPAdd",
+
+		// TODO: On Edge, it is impossible to tell KPEnter and Enter / KPEqual and Equal.
+		// 0x0d: "KPEnter",
+		// 0x0c: "KPEqual",
 	}
 	// ASCII: 0 - 9
 	for c := '0'; c <= '9'; c++ {
@@ -142,7 +152,10 @@ func init() {
 	for i := 1; i <= 12; i++ {
 		keyCodeToNameEdge[0x70+i-1] = "F" + strconv.Itoa(i)
 	}
-	// TODO: Add numpad keys
+	// Numpad keys
+	for c := '0'; c <= '9'; c++ {
+		keyCodeToNameEdge[0x60+int(c-'0')] = "KP" + string(c)
+	}
 }
 
 const ebitenKeysTmpl = `{{.License}}
@@ -162,7 +175,9 @@ import (
 // For example, KeyQ represents Q key on US keyboards and ' (quote) key on Dvorak keyboards.
 type Key int
 
-// Keys
+// Keys.
+//
+// Known issue: KeyKPEnter and KeyKPEqual don't work on Edge browsers.
 const (
 {{range $index, $name := .KeyNames}}Key{{$name}} Key = Key(input.Key{{$name}})
 {{end}}	KeyMax Key = Key{{.LastKeyName}}

internal/input/keys_js.go

@@ -365,6 +365,21 @@ var keyCodeToKeyEdge = map[int]Key{
 	88:  KeyX,
 	89:  KeyY,
 	90:  KeyZ,
+	96:  KeyKP0,
+	97:  KeyKP1,
+	98:  KeyKP2,
+	99:  KeyKP3,
+	100: KeyKP4,
+	101: KeyKP5,
+	102: KeyKP6,
+	103: KeyKP7,
+	104: KeyKP8,
+	105: KeyKP9,
+	106: KeyKPMultiply,
+	107: KeyKPAdd,
+	109: KeyKPSubtract,
+	110: KeyKPDecimal,
+	111: KeyKPDivide,
 	112: KeyF1,
 	113: KeyF2,
 	114: KeyF3,
@@ -377,6 +392,7 @@ var keyCodeToKeyEdge = map[int]Key{
 	121: KeyF10,
 	122: KeyF11,
 	123: KeyF12,
+	144: KeyNumLock,
 	186: KeySemicolon,
 	187: KeyEqual,
 	188: KeyComma,

keys.go

@@ -27,7 +27,9 @@ import (
 // For example, KeyQ represents Q key on US keyboards and ' (quote) key on Dvorak keyboards.
 type Key int
 
-// Keys
+// Keys.
+//
+// Known issue: KeyKPEnter and KeyKPEqual don't work on Edge browsers.
 const (
 	Key0            Key = Key(input.Key0)
 	Key1            Key = Key(input.Key1)