From b8de876ec0175eaff41075bb5952ef9b09d4f438 Mon Sep 17 00:00:00 2001
From: ptitSeb
Date: Sat, 2 Dec 2017 12:26:09 +0100
Subject: Added Joystick support (only 1st joystick, better use a XBox360 type)

---
 src/sdl/input.c | 127 ++++++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 114 insertions(+), 13 deletions(-)

(limited to 'src/sdl/input.c')

diff --git a/src/sdl/input.c b/src/sdl/input.c
index c5f5a65..adba574 100644
--- a/src/sdl/input.c
+++ b/src/sdl/input.c
@@ -13,6 +13,34 @@ int bFaceUp = 0, bFaceDown = 0, bFaceLeft = 0, bFaceRight = 0;
 int bR = 0, bL = 0;
 int bStart = 0, bSelect = 0;
 int bAccept = 0, bDecline = 0;
+int jUp = 0, jDown = 0, jLeft = 0, jRight = 0;
+int jFaceUp = 0, jFaceDown = 0, jFaceLeft = 0, jFaceRight = 0;
+int jR = 0, jL = 0;
+int jStart = 0, jSelect = 0;
+int jAccept = 0, jDecline = 0;
+
+SDL_Joystick *joy1 = NULL;
+
+int useJoystick = 1;
+
+void Input_InitJoystick()
+{
+	int n = SDL_NumJoysticks();
+	if (n) {
+		joy1 = SDL_JoystickOpen(0);
+		SDL_JoystickEventState(SDL_ENABLE);
+		printf("Using %s\n", SDL_JoystickName(0));
+	} else {
+		joy1 = NULL;
+	}
+}
+
+void Input_CloseJoystick()
+{
+	if(joy1)
+		SDL_JoystickClose(joy1);
+	joy1 = NULL;
+}
 
 void Input_KeyEvent(SDL_Event* evt)
 {
@@ -45,6 +73,79 @@ void Input_KeyEvent(SDL_Event* evt)
     }
 }
 
+void Input_JoyAxisEvent(SDL_Event* evt) {
+	if(evt->jaxis.which!=0)
+		return;
+	#define DEADZONE 32
+	if(evt->jaxis.axis==0) {
+		int v = (evt->jaxis.value)/256;
+		if(v>-DEADZONE & v<DEADZONE) axisX = 0;
+		else if(v<0) axisX = -1;
+		else axisX = +1;
+	}
+	if(evt->jaxis.axis==1) {
+		int v = (evt->jaxis.value)/256;
+		if(v>-DEADZONE & v<DEADZONE) axisY = 0;
+		else if(v<0) axisY = -1;
+		else axisY = +1;
+	}
+}
+
+void Input_JoyEvent(SDL_Event* evt) {
+	if(evt->jbutton.which!=0)
+		return;
+	int w = (evt->type==SDL_JOYBUTTONDOWN)?1:0;
+/* XBox 360 based mapping here,
+	(would be better to switch to SDL2.0)
+	btn 		SDL1.2	SDL2.0
+	---------------------------
+	A			0		10
+	B			1		11
+	X			2		12
+	Y			3		13
+	Home		N/A	14
+	LB			4		8
+	RB			5		9
+	LT			N/A		N/A (axis)
+	RT			N/A		N/A (axis)
+	Select		6		5
+	Start		7		4
+	L3			9		6
+	R3			10		7
+	DPad Up		N/A		0
+	DPad Down	N/A		1
+	DPad Left	N/A		2
+	DPad Right	N/A		3
+*/
+	switch(evt->jbutton.button)
+	{
+		case 0: jFaceDown = w; break;
+		case 1: jFaceLeft = w; break;
+		case 2: jFaceRight = w; break;
+		case 3: jFaceUp = w; break;
+		case 4: jL = w; break;
+		case 5: jR = w; break;
+		case 6: jSelect = w; break;
+		case 7: jStart = w; break;
+		/*case 12:jUp = w; break;
+		case 13:jDown = w; break;
+		case 14:jLeft = w; break;
+		case 15:jRight = w; break;*/
+	}
+}
+
+void Input_JoyHatEvent(SDL_Event* evt) {
+	if(evt->jhat.which!=0)
+		return;
+	if(evt->jhat.hat!=0)
+		return;
+	int v=evt->jhat.value;
+	jUp = v&SDL_HAT_UP;
+	jDown = v&SDL_HAT_DOWN;
+	jLeft = v&SDL_HAT_LEFT;
+	jRight = v&SDL_HAT_RIGHT;
+}
+
 void updateKey(Button* btn, int state)
 {
 	if (state) {
@@ -68,21 +169,21 @@ void updateKey(Button* btn, int state)
 
 void PHL_ScanInput()
 {
-	updateKey(&btnUp, bUp);
-	updateKey(&btnDown, bDown);
-	updateKey(&btnLeft, bLeft);
-	updateKey(&btnRight, bRight);
+	updateKey(&btnUp, bUp|jUp|(axisY<0));
+	updateKey(&btnDown, bDown|jDown|(axisY>0));
+	updateKey(&btnLeft, bLeft|jLeft|(axisX<0));
+	updateKey(&btnRight, bRight|jRight|(axisX>0));
 	
-	updateKey(&btnStart, bStart);
-	updateKey(&btnSelect, bSelect);
+	updateKey(&btnStart, bStart|jStart);
+	updateKey(&btnSelect, bSelect|jSelect);
 	
-	updateKey(&btnL, bL);
-	updateKey(&btnR, bR);
+	updateKey(&btnL, bL|jL);
+	updateKey(&btnR, bR|jR);
 	
-	updateKey(&btnFaceLeft, bFaceLeft);
-	updateKey(&btnFaceDown, bFaceDown);
-	updateKey(&btnFaceRight, bFaceRight);
+	updateKey(&btnFaceLeft, bFaceLeft|jFaceLeft);
+	updateKey(&btnFaceDown, bFaceDown|jFaceDown);
+	updateKey(&btnFaceRight, bFaceRight|jFaceRight);
 	
-	updateKey(&btnAccept, bFaceLeft);
-	updateKey(&btnDecline, bFaceDown);
+	updateKey(&btnAccept, bFaceLeft|jFaceLeft);
+	updateKey(&btnDecline, bFaceDown|jFaceDown);
 }
-- 
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