ref: 74e1b8b7548e6d14eb9be748279e8100a766cf04
parent: 64cdaabd292d54fe3637b4530eb610af2d46c647
author: Simon Howard <fraggle@gmail.com>
date: Fri Apr 18 21:12:13 EDT 2014
joystick: Add an axis to allow strafing. Modern gamepads typically have 2-3 D-pads and joysticks. This means that it's desirable to be able to use one joystick for turning and another for strafing. Add another axis in addition to the current X and y axes that performs strafe movement.
--- a/src/d_event.h
+++ b/src/d_event.h
@@ -49,10 +49,30 @@
// Event structure.
typedef struct
{- evtype_t type;
- int data1; // keys / mouse/joystick buttons
- int data2; // mouse/joystick x move
- int data3; // mouse/joystick y move
+ evtype_t type;
+
+ // Event-related data that depends on the type of event:
+ //
+ // ev_keydown/ev_keyup:
+ // data1: Key code (from doomkeys.h) of the key that was
+ // pressed or released.
+ // data2: Ascii text of the character that was pressed,
+ // shifted appropriately (eg. '$' if 4 was pressed
+ // while shift was held).
+ //
+ // ev_mouse:
+ // data1: Bitfield of buttons currently held down.
+ // (bit 0 = left; bit 1 = right; bit 2 = middle).
+ // data2: X axis mouse movement (turn).
+ // data3: Y axis mouse movement (forward/backward).
+ //
+ // ev_joystick:
+ // data1: Bitfield of buttons currently pressed.
+ // data2: X axis mouse movement (turn).
+ // data3: Y axis mouse movement (forward/backward).
+ // data4: Third axis mouse movement (strafe).
+
+ int data1, data2, data3, data4;
} event_t;
--- a/src/doom/g_game.c
+++ b/src/doom/g_game.c
@@ -223,6 +223,7 @@
// joystick values are repeated
static int joyxmove;
static int joyymove;
+static int joystrafemove;
static boolean joyarray[MAX_JOY_BUTTONS + 1];
static boolean *joybuttons = &joyarray[1]; // allow [-1]
@@ -418,7 +419,8 @@
if (gamekeydown[key_strafeleft]
|| joybuttons[joybstrafeleft]
- || mousebuttons[mousebstrafeleft])
+ || mousebuttons[mousebstrafeleft]
+ || joystrafemove < 0)
{side -= sidemove[speed];
}
@@ -425,7 +427,8 @@
if (gamekeydown[key_straferight]
|| joybuttons[joybstraferight]
- || mousebuttons[mousebstraferight])
+ || mousebuttons[mousebstraferight]
+ || joystrafemove > 0)
{side += sidemove[speed];
}
@@ -638,12 +641,12 @@
// clear cmd building stuff
- memset (gamekeydown, 0, sizeof(gamekeydown));
- joyxmove = joyymove = 0;
- mousex = mousey = 0;
- sendpause = sendsave = paused = false;
- memset(mousearray, 0, sizeof(mousearray));
- memset(joyarray, 0, sizeof(joyarray));
+ memset (gamekeydown, 0, sizeof(gamekeydown));
+ joyxmove = joyymove = joystrafemove = 0;
+ mousex = mousey = 0;
+ sendpause = sendsave = paused = false;
+ memset(mousearray, 0, sizeof(mousearray));
+ memset(joyarray, 0, sizeof(joyarray));
if (testcontrols)
{@@ -814,6 +817,7 @@
SetJoyButtons(ev->data1);
joyxmove = ev->data2;
joyymove = ev->data3;
+ joystrafemove = ev->data4;
return true; // eat events
default:
--- a/src/heretic/g_game.c
+++ b/src/heretic/g_game.c
@@ -195,6 +195,7 @@
#define MAX_JOY_BUTTONS 20
int joyxmove, joyymove; // joystick values are repeated
+int joystrafemove;
boolean joyarray[MAX_JOY_BUTTONS + 1];
boolean *joybuttons = &joyarray[1]; // allow [-1]
@@ -379,10 +380,10 @@
if (joyymove > 0)
forward -= forwardmove[speed];
if (gamekeydown[key_straferight] || mousebuttons[mousebstraferight]
- || joybuttons[joybstraferight])
+ || joybuttons[joybstraferight] || joystrafemove > 0)
side += sidemove[speed];
if (gamekeydown[key_strafeleft] || mousebuttons[mousebstrafeleft]
- || joybuttons[joybstrafeleft])
+ || joybuttons[joybstrafeleft] || joystrafemove < 0)
side -= sidemove[speed];
// Look up/down/center keys
@@ -663,7 +664,7 @@
//
memset(gamekeydown, 0, sizeof(gamekeydown));
- joyxmove = joyymove = 0;
+ joyxmove = joyymove = joystrafemove = 0;
mousex = mousey = 0;
sendpause = sendsave = paused = false;
memset(mousearray, 0, sizeof(mousearray));
@@ -879,6 +880,7 @@
SetJoyButtons(ev->data1);
joyxmove = ev->data2;
joyymove = ev->data3;
+ joystrafemove = ev->data4;
return (true); // eat events
default:
--- a/src/hexen/g_game.c
+++ b/src/hexen/g_game.c
@@ -162,6 +162,7 @@
#define MAX_JOY_BUTTONS 20
int joyxmove, joyymove; // joystick values are repeated
+int joystrafemove;
boolean joyarray[MAX_JOY_BUTTONS + 1];
boolean *joybuttons = &joyarray[1]; // allow [-1]
@@ -313,11 +314,11 @@
{forward -= forwardmove[pClass][speed];
}
- if (gamekeydown[key_straferight])
+ if (gamekeydown[key_straferight] || joystrafemove > 0)
{side += sidemove[pClass][speed];
}
- if (gamekeydown[key_strafeleft])
+ if (gamekeydown[key_strafeleft] || joystrafemove < 0)
{side -= sidemove[pClass][speed];
}
@@ -659,7 +660,7 @@
//
memset(gamekeydown, 0, sizeof(gamekeydown));
- joyxmove = joyymove = 0;
+ joyxmove = joyymove = joystrafemove = 0;
mousex = mousey = 0;
sendpause = sendsave = paused = false;
memset(mousearray, 0, sizeof(mousearray));
@@ -876,6 +877,7 @@
SetJoyButtons(ev->data1);
joyxmove = ev->data2;
joyymove = ev->data3;
+ joystrafemove = ev->data4;
return (true); // eat events
default:
--- a/src/i_joystick.c
+++ b/src/i_joystick.c
@@ -67,6 +67,11 @@
static int joystick_y_axis = 1;
static int joystick_y_invert = 0;
+// Which joystick axis to use for strafing?
+
+static int joystick_strafe_axis = -1;
+static int joystick_strafe_invert = 0;
+
void I_ShutdownJoystick(void)
{if (joystick != NULL)
@@ -112,8 +117,9 @@
num_axes = SDL_JoystickNumAxes(joystick);
- if (joystick_x_axis < 0 || joystick_x_axis >= num_axes
- || joystick_y_axis < 0 || joystick_y_axis >= num_axes)
+ if (joystick_x_axis >= num_axes
+ || joystick_y_axis >= num_axes
+ || joystick_strafe_axis >= num_axes)
{ printf("I_InitJoystick: Invalid joystick axis for joystick #%i ""(run joystick setup again)\n",
@@ -159,6 +165,13 @@
{int result;
+ // Axis -1 means disabled.
+
+ if (axis < 0)
+ {+ return 0;
+ }
+
result = SDL_JoystickGetAxis(joystick, axis);
if (invert)
@@ -184,6 +197,7 @@
ev.data1 = GetButtonState();
ev.data2 = GetAxisState(joystick_x_axis, joystick_x_invert);
ev.data3 = GetAxisState(joystick_y_axis, joystick_y_invert);
+ ev.data4 = GetAxisState(joystick_strafe_axis, joystick_strafe_invert);
D_PostEvent(&ev);
}
@@ -195,7 +209,9 @@
M_BindVariable("joystick_index", &joystick_index); M_BindVariable("joystick_x_axis", &joystick_x_axis); M_BindVariable("joystick_y_axis", &joystick_y_axis);+ M_BindVariable("joystick_strafe_axis", &joystick_strafe_axis); M_BindVariable("joystick_x_invert", &joystick_x_invert); M_BindVariable("joystick_y_invert", &joystick_y_invert);+ M_BindVariable("joystick_strafe_invert",&joystick_strafe_invert);}
--- a/src/m_config.c
+++ b/src/m_config.c
@@ -926,6 +926,19 @@
CONFIG_VARIABLE_INT(joystick_y_invert),
//!
+ // Joystick axis to use to for strafing movement.
+ //
+
+ CONFIG_VARIABLE_INT(joystick_strafe_axis),
+
+ //!
+ // If non-zero, movement on the joystick axis used for strafing
+ // is inverted.
+ //
+
+ CONFIG_VARIABLE_INT(joystick_strafe_invert),
+
+ //!
// Joystick button to strafe left.
//
--- a/src/setup/joystick.c
+++ b/src/setup/joystick.c
@@ -63,6 +63,11 @@
static int joystick_y_axis = 1;
static int joystick_y_invert = 0;
+// Strafe axis.
+
+static int joystick_strafe_axis = -1;
+static int joystick_strafe_invert = 0;
+
static txt_button_t *joystick_button;
static int *all_joystick_buttons[] = {@@ -438,7 +443,9 @@
M_BindVariable("joystick_index", &joystick_index); M_BindVariable("joystick_x_axis", &joystick_x_axis); M_BindVariable("joystick_y_axis", &joystick_y_axis);+ M_BindVariable("joystick_strafe_axis", &joystick_strafe_axis); M_BindVariable("joystick_x_invert", &joystick_x_invert); M_BindVariable("joystick_y_invert", &joystick_y_invert);+ M_BindVariable("joystick_strafe_invert",&joystick_strafe_invert);}
--- a/src/strife/g_game.c
+++ b/src/strife/g_game.c
@@ -226,6 +226,7 @@
// joystick values are repeated
static int joyxmove;
static int joyymove;
+static int joystrafemove;
static boolean joyarray[MAX_JOY_BUTTONS + 1];
static boolean *joybuttons = &joyarray[1]; // allow [-1]
@@ -468,7 +469,8 @@
if (gamekeydown[key_strafeleft]
|| joybuttons[joybstrafeleft]
- || mousebuttons[mousebstrafeleft])
+ || mousebuttons[mousebstrafeleft]
+ || joystrafemove < 0)
{side -= sidemove[speed];
}
@@ -475,7 +477,8 @@
if (gamekeydown[key_straferight]
|| joybuttons[joybstraferight]
- || mousebuttons[mousebstraferight])
+ || mousebuttons[mousebstraferight]
+ || joystrafemove > 0)
{side += sidemove[speed];
}
@@ -699,12 +702,12 @@
// clear cmd building stuff
- memset (gamekeydown, 0, sizeof(gamekeydown));
- joyxmove = joyymove = 0;
- mousex = mousey = 0;
- sendpause = sendsave = paused = false;
- memset(mousearray, 0, sizeof(mousearray));
- memset(joyarray, 0, sizeof(joyarray));
+ memset (gamekeydown, 0, sizeof(gamekeydown));
+ joyxmove = joyymove = joystrafemove = 0;
+ mousex = mousey = 0;
+ sendpause = sendsave = paused = false;
+ memset(mousearray, 0, sizeof(mousearray));
+ memset(joyarray, 0, sizeof(joyarray));
if (testcontrols)
{@@ -880,6 +883,7 @@
SetJoyButtons(ev->data1);
joyxmove = ev->data2;
joyymove = ev->data3;
+ joystrafemove = ev->data4;
return true; // eat events
default: