allow separate key binding for the numerics keypad (#1148)

* allow separate key binding for the numerics keypad

Fixes #1147

* bring back some sub-128 key codes

* abstract HOME key in default config

src/doomkeys.h

@@ -31,18 +31,6 @@
 #define KEY_ESCAPE      27
 #define KEY_ENTER       13
 #define KEY_TAB         9
-#define KEY_F1          (0x80+0x3b)
-#define KEY_F2          (0x80+0x3c)
-#define KEY_F3          (0x80+0x3d)
-#define KEY_F4          (0x80+0x3e)
-#define KEY_F5          (0x80+0x3f)
-#define KEY_F6          (0x80+0x40)
-#define KEY_F7          (0x80+0x41)
-#define KEY_F8          (0x80+0x42)
-#define KEY_F9          (0x80+0x43)
-#define KEY_F10         (0x80+0x44)
-#define KEY_F11         (0x80+0x57)
-#define KEY_F12         (0x80+0x58)
 
 #define KEY_BACKSPACE   0x7f
 #define KEY_PAUSE       0xff
@@ -50,44 +38,58 @@
 #define KEY_EQUALS      0x3d
 #define KEY_MINUS       0x2d
 
-#define KEY_RSHIFT      (0x80+0x36)
-#define KEY_RCTRL       (0x80+0x1d)
-#define KEY_RALT        (0x80+0x38)
+enum {
 
-#define KEY_LALT        KEY_RALT
+    // Keys without character representations
 
-// new keys:
+    KEY_F1 = 0x80,
+    KEY_F2,
+    KEY_F3,
+    KEY_F4,
+    KEY_F5,
+    KEY_F6,
+    KEY_F7,
+    KEY_F8,
+    KEY_F9,
+    KEY_F10,
+    KEY_F11,
+    KEY_F12,
 
-#define KEY_CAPSLOCK    (0x80+0x3a)
-#define KEY_NUMLOCK     (0x80+0x45)
-#define KEY_SCRLCK      (0x80+0x46)
-#define KEY_PRTSCR      (0x80+0x59)
+    KEY_RSHIFT,
+    KEY_RCTRL,
+    KEY_RALT,
+    KEY_LALT = KEY_RALT,
+    KEY_CAPSLOCK,
+    KEY_NUMLOCK,
+    KEY_SCRLCK,
+    KEY_PRTSCR,
+    KEY_HOME,
+    KEY_END,
+    KEY_PGUP,
+    KEY_PGDN,
+    KEY_INS,
+    KEY_DEL,
 
-#define KEY_HOME        (0x80+0x47)
-#define KEY_END         (0x80+0x4f)
-#define KEY_PGUP        (0x80+0x49)
-#define KEY_PGDN        (0x80+0x51)
-#define KEY_INS         (0x80+0x52)
-#define KEY_DEL         (0x80+0x53)
+    // Keys on the numerics keypad
 
-#define KEYP_0          KEY_INS
-#define KEYP_1          KEY_END
-#define KEYP_2          KEY_DOWNARROW
-#define KEYP_3          KEY_PGDN
-#define KEYP_4          KEY_LEFTARROW
-#define KEYP_5          (0x80+0x4c)
-#define KEYP_6          KEY_RIGHTARROW
-#define KEYP_7          KEY_HOME
-#define KEYP_8          KEY_UPARROW
-#define KEYP_9          KEY_PGUP
-
-#define KEYP_DIVIDE     '/'
-#define KEYP_PLUS       '+'
-#define KEYP_MINUS      '-'
-#define KEYP_MULTIPLY   '*'
-#define KEYP_PERIOD     0
-#define KEYP_EQUALS     KEY_EQUALS
-#define KEYP_ENTER      KEY_ENTER
+    KEYP_0,
+    KEYP_1,
+    KEYP_2,
+    KEYP_3,
+    KEYP_4,
+    KEYP_5,
+    KEYP_6,
+    KEYP_7,
+    KEYP_8,
+    KEYP_9,
+    KEYP_DIVIDE,
+    KEYP_PLUS,
+    KEYP_MINUS,
+    KEYP_MULTIPLY,
+    KEYP_PERIOD,
+    KEYP_EQUALS = KEY_EQUALS,
+    KEYP_ENTER = KEY_ENTER,
+};
 
 #define SCANCODE_TO_KEYS_ARRAY {                                            \
     0,   0,   0,   0,   'a',                                  /* 0-9 */     \

src/m_input.c

@@ -304,7 +304,22 @@ static const struct
   { KEY_INS,        "insert" },
   { KEY_PAUSE,      "pause" },
   { KEY_DEL,        "del" },
-  { KEY_PRTSCR,     "prtscr" }
+  { KEY_PRTSCR,     "prtscr" },
+  { KEYP_0,         "num0" },
+  { KEYP_1,         "num1" },
+  { KEYP_2,         "num2" },
+  { KEYP_3,         "num3" },
+  { KEYP_4,         "num4" },
+  { KEYP_5,         "num5" },
+  { KEYP_6,         "num6" },
+  { KEYP_7,         "num7" },
+  { KEYP_8,         "num8" },
+  { KEYP_9,         "num9" },
+  { KEYP_DIVIDE,    "num/" },
+  { KEYP_PLUS,      "num+" },
+  { KEYP_MINUS,     "num-" },
+  { KEYP_MULTIPLY,  "num*" },
+  { KEYP_PERIOD,    "num." },
 };
 
 static const struct

src/m_misc.c

@@ -1906,7 +1906,7 @@ default_t defaults[] = {
     NULL, NULL,
     {0}, {UL,UL}, input, ss_keys, wad_no,
     "shortcut key to enter setup menu",
-    input_setup, { {input_type_key, 199} }
+    input_setup, { {input_type_key, KEY_HOME} }
   },
 
   {