Fix Classic Doom 1 / 2 menus on HTC Vive and Windows Mixed Reality.

It is now (theoretically) possible to play Doom 1 and Doom 2 on the HTC Vive or Windows Mixed Reality. Previously, you could control yourself in-game but you had to navigate the menus and map with the keyboard or X-Box One controller (or voice for some things). Oculus Touch worked already, but I had forgotten to add HTC Vive.

Doom 1 and 2 are still broken in other ways because they run much too fast, and on a sickness-inducing huge virtual screen.

Left touchpad navigates menus
Right trigger selects
Right grip cancels
Right Menu button toggles menu
Left Menu button toggles map

JUMP (or USE) opens doors or restarts level (default is left trigger)
Other controls match your Doom 3 settings
You can still change weapons with voice commands

doomclassic/doom/doomlib.cpp

@@ -263,6 +263,7 @@ void DoomLib::InitControlRemap() {
 
 	memset( classicRemap, K_NONE, sizeof( classicRemap ) );
 
+	// Carl: XBox One controller hardcoded controls for Doom Classic
 	classicRemap[K_JOY3] = KEY_TAB ; 
 	classicRemap[K_JOY4] = K_MINUS;
 	classicRemap[K_JOY2] = K_EQUALS;
@@ -277,6 +278,7 @@ void DoomLib::InitControlRemap() {
 	classicRemap[K_JOY_DPAD_RIGHT] = K_RIGHTARROW ;	
 	classicRemap[K_JOY1] = K_ENTER;
 
+	// Carl: Oculus Touch hardcoded controls for Doom Classic
 	classicRemap[K_JOY17] = K_TAB;
 	classicRemap[K_JOY18] = K_TAB;
 	classicRemap[K_JOY19] = K_ESCAPE;
@@ -287,6 +289,23 @@ void DoomLib::InitControlRemap() {
 	classicRemap[K_TOUCH_LEFT_STICK_LEFT] = K_LEFTARROW;
 	classicRemap[K_TOUCH_LEFT_STICK_RIGHT] = K_RIGHTARROW;
 
+	// Carl: HTC Vive hardcoded controls for Doom Classic
+	classicRemap[K_JOY32] = K_TAB;			// Left Menu = toggle map
+	classicRemap[K_JOY50] = K_ESCAPE;		// Right Menu = toggle menu
+	classicRemap[K_JOY58] = K_ENTER;		// Right trigger = Enter
+	classicRemap[K_JOY51] = K_BACKSPACE;	// Right grip = cancel
+	classicRemap[K_STEAMVR_LEFT_PAD_UP] = K_UPARROW; // left touchpad navigates menus
+	classicRemap[K_STEAMVR_LEFT_PAD_DOWN] = K_DOWNARROW;
+	classicRemap[K_STEAMVR_LEFT_PAD_LEFT] = K_LEFTARROW;
+	classicRemap[K_STEAMVR_LEFT_PAD_RIGHT] = K_RIGHTARROW;
+
+	// Carl: Windows Mixed Reality hardcoded controls for Doom Classic
+	classicRemap[K_STEAMVR_LEFT_JS_UP] = K_UPARROW; // left touchpad navigates menus
+	classicRemap[K_STEAMVR_LEFT_JS_DOWN] = K_DOWNARROW;
+	classicRemap[K_STEAMVR_LEFT_JS_LEFT] = K_LEFTARROW;
+	classicRemap[K_STEAMVR_LEFT_JS_RIGHT] = K_RIGHTARROW;
+
+	// Carl: Voice hardcoded controls for Doom Classic (weapons are handled elsewhere)
 	classicRemap[K_SAY_CANCEL] = K_BACKSPACE;
 	classicRemap[K_SAY_RESUME] = K_BACKSPACE;
 	classicRemap[K_SAY_PAUSE] = K_ESCAPE;