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Implement mouse mode #617

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46 changes: 46 additions & 0 deletions custom/mupen64plus-core/plugin/emulate_game_controller_via_libretro.c
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,14 @@ extern int l_cbutton;
extern int d_cbutton;
extern int u_cbutton;
extern bool alternate_mapping;
extern bool mouse_mode;
extern int mouse_sensitivity_x;
extern int mouse_sensitivity_y;
extern int mouse_left_btn;
extern int mouse_right_btn;
extern int mouse_middle_btn;
extern int mouse_wheel_up_btn;
extern int mouse_wheel_down_btn;
static bool libretro_supports_bitmasks = false;

extern m64p_rom_header ROM_HEADER;
Expand Down Expand Up @@ -278,6 +286,24 @@ EXPORT void CALL inputControllerCommand(int Control, unsigned char *Command)
#define CSTICK_DOWN 0x400


static void apply_mouse_button(BUTTONS* Keys, int btn_mapping)
{
switch (btn_mapping)
{
case 1: Keys->Z_TRIG = 1; break;
case 2: Keys->A_BUTTON = 1; break;
case 3: Keys->B_BUTTON = 1; break;
case 4: Keys->L_TRIG = 1; break;
case 5: Keys->R_TRIG = 1; break;
case 6: Keys->START_BUTTON = 1; break;
case 7: Keys->U_CBUTTON = 1; break;
case 8: Keys->D_CBUTTON = 1; break;
case 9: Keys->L_CBUTTON = 1; break;
case 10: Keys->R_CBUTTON = 1; break;
default: break;
}
}

static void inputGetKeys_reuse(int16_t analogX, int16_t analogY, int Control, BUTTONS* Keys)
{
double radius, angle;
Expand Down Expand Up @@ -306,6 +332,26 @@ static void inputGetKeys_reuse(int16_t analogX, int16_t analogY, int Control, BU
Keys->X_AXIS = 0;
Keys->Y_AXIS = 0;
}

if (mouse_mode && Control == 0 && Keys->X_AXIS == 0 && Keys->Y_AXIS == 0) // Only player 1
{
int32_t stickX = (int32_t)(input_cb(Control, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_X) * mouse_sensitivity_x / 50.0f);
int32_t stickY = (int32_t)(input_cb(Control, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y) * mouse_sensitivity_y / 50.0f);

Keys->X_AXIS = (stickX > 80.0f) ? 80 : (stickX < -80.0f) ? -80 : (int32_t)stickX;
Keys->Y_AXIS = (stickY > 80.0f) ? 80 : (stickY < -80.0f) ? -80 : (int32_t)stickY;

if (input_cb(Control, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
apply_mouse_button(Keys, mouse_left_btn);
if (input_cb(Control, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT))
apply_mouse_button(Keys, mouse_right_btn);
if (input_cb(Control, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_MIDDLE))
apply_mouse_button(Keys, mouse_middle_btn);
if (input_cb(Control, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_WHEELUP))
apply_mouse_button(Keys, mouse_wheel_up_btn);
if (input_cb(Control, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_WHEELDOWN))
apply_mouse_button(Keys, mouse_wheel_down_btn);
}
}

void inputGetKeys_default( int Control, BUTTONS *Keys )
Expand Down
62 changes: 62 additions & 0 deletions libretro/libretro.c
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Original file line number Diff line number Diff line change
Expand Up @@ -124,6 +124,14 @@ int l_cbutton;
int d_cbutton;
int u_cbutton;
bool alternate_mapping;
bool mouse_mode;
int mouse_sensitivity_x;
int mouse_sensitivity_y;
int mouse_left_btn;
int mouse_right_btn;
int mouse_middle_btn;
int mouse_wheel_up_btn;
int mouse_wheel_down_btn;

static uint8_t* game_data = NULL;
static uint32_t game_size = 0;
Expand Down Expand Up @@ -843,6 +851,60 @@ void update_controllers()
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
astick_sensitivity = atoi(var.value);

var.key = CORE_NAME "-mouse-mode";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
mouse_mode = !strcmp(var.value, "True");

var.key = CORE_NAME "-mouse-sensitivity-x";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
int val = atoi(var.value);
mouse_sensitivity_x = (val < -500) ? -500 : (val > 500) ? 500 : val;
}

var.key = CORE_NAME "-mouse-sensitivity-y";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
int val = atoi(var.value);
mouse_sensitivity_y = (val < -500) ? -500 : (val > 500) ? 500 : val;
}

#define PARSE_MOUSE_BTN(val) \
(!strcmp(val, "None") ? 0 : !strcmp(val, "Z") ? 1 : !strcmp(val, "A") ? 2 : \
!strcmp(val, "B") ? 3 : !strcmp(val, "L") ? 4 : !strcmp(val, "R") ? 5 : \
!strcmp(val, "Start") ? 6 : !strcmp(val, "C-Up") ? 7 : !strcmp(val, "C-Down") ? 8 : \
!strcmp(val, "C-Left") ? 9 : !strcmp(val, "C-Right") ? 10 : 0)

var.key = CORE_NAME "-mouse-left";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
mouse_left_btn = PARSE_MOUSE_BTN(var.value);

var.key = CORE_NAME "-mouse-right";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
mouse_right_btn = PARSE_MOUSE_BTN(var.value);

var.key = CORE_NAME "-mouse-middle";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
mouse_middle_btn = PARSE_MOUSE_BTN(var.value);

var.key = CORE_NAME "-mouse-wheel-up";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
mouse_wheel_up_btn = PARSE_MOUSE_BTN(var.value);

var.key = CORE_NAME "-mouse-wheel-down";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
mouse_wheel_down_btn = PARSE_MOUSE_BTN(var.value);

#undef PARSE_MOUSE_BTN

var.key = CORE_NAME "-r-cbutton";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
Expand Down
148 changes: 148 additions & 0 deletions libretro/libretro_core_options.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1582,6 +1582,154 @@ struct retro_core_option_v2_definition option_defs_us[] = {
},
"100"
},
{
CORE_NAME "-mouse-mode",
"Mouse to Analog Stick",
NULL,
"Use mouse input to control the N64 analog stick. Useful for FPS games.",
NULL,
"input",
{
{"False", "Disabled"},
{"True", "Enabled"},
{ NULL, NULL },
},
"False"
},
{
CORE_NAME "-mouse-sensitivity-x",
"Mouse Sensitivity X (percent)",
NULL,
"Horizontal mouse sensitivity. Negative values invert axis. Set to 0 to disable.",
NULL,
"input",
{
{"-500", NULL}, {"-400", NULL}, {"-300", NULL}, {"-250", NULL}, {"-200", NULL},
{"-175", NULL}, {"-150", NULL}, {"-125", NULL}, {"-100", NULL}, {"-75", NULL}, {"-50", NULL},
{"0", NULL},
{"50", NULL}, {"75", NULL}, {"100", NULL}, {"125", NULL}, {"150", NULL},
{"175", NULL}, {"200", NULL}, {"250", NULL}, {"300", NULL}, {"400", NULL}, {"500", NULL},
{ NULL, NULL },
},
"100"
},
{
CORE_NAME "-mouse-sensitivity-y",
"Mouse Sensitivity Y (percent)",
NULL,
"Vertical mouse sensitivity. Negative values invert axis. Set to 0 for Doom-like horizontal-only control.",
NULL,
"input",
{
{"-500", NULL}, {"-400", NULL}, {"-300", NULL}, {"-250", NULL}, {"-200", NULL},
{"-175", NULL}, {"-150", NULL}, {"-125", NULL}, {"-100", NULL}, {"-75", NULL}, {"-50", NULL},
{"0", NULL},
{"50", NULL}, {"75", NULL}, {"100", NULL}, {"125", NULL}, {"150", NULL},
{"175", NULL}, {"200", NULL}, {"250", NULL}, {"300", NULL}, {"400", NULL}, {"500", NULL},
{ NULL, NULL },
},
"-100"
},
{
CORE_NAME "-mouse-left",
"Mouse Left Click",
NULL,
"Map mouse left click to N64 button.",
NULL,
"input",
{
{"Z", "Z Trigger"},
{"A", "A Button"},
{"B", "B Button"},
{"L", "L Trigger"},
{"R", "R Trigger"},
{"Start", "Start"},
{"C-Up", NULL}, {"C-Down", NULL}, {"C-Left", NULL}, {"C-Right", NULL},
{"None", "Disabled"},
{ NULL, NULL },
},
"Z"
},
{
CORE_NAME "-mouse-right",
"Mouse Right Click",
NULL,
"Map mouse right click to N64 button.",
NULL,
"input",
{
{"A", "A Button"},
{"B", "B Button"},
{"Z", "Z Trigger"},
{"L", "L Trigger"},
{"R", "R Trigger"},
{"Start", "Start"},
{"C-Up", NULL}, {"C-Down", NULL}, {"C-Left", NULL}, {"C-Right", NULL},
{"None", "Disabled"},
{ NULL, NULL },
},
"A"
},
{
CORE_NAME "-mouse-middle",
"Mouse Middle Click",
NULL,
"Map mouse middle click to N64 button.",
NULL,
"input",
{
{"None", "Disabled"},
{"A", "A Button"},
{"B", "B Button"},
{"Z", "Z Trigger"},
{"L", "L Trigger"},
{"R", "R Trigger"},
{"Start", "Start"},
{"C-Up", NULL}, {"C-Down", NULL}, {"C-Left", NULL}, {"C-Right", NULL},
{ NULL, NULL },
},
"None"
},
{
CORE_NAME "-mouse-wheel-up",
"Mouse Wheel Up",
NULL,
"Map mouse wheel up to N64 button.",
NULL,
"input",
{
{"L", "L Trigger"},
{"R", "R Trigger"},
{"A", "A Button"},
{"B", "B Button"},
{"Z", "Z Trigger"},
{"Start", "Start"},
{"C-Up", NULL}, {"C-Down", NULL}, {"C-Left", NULL}, {"C-Right", NULL},
{"None", "Disabled"},
{ NULL, NULL },
},
"L"
},
{
CORE_NAME "-mouse-wheel-down",
"Mouse Wheel Down",
NULL,
"Map mouse wheel down to N64 button.",
NULL,
"input",
{
{"R", "R Trigger"},
{"L", "L Trigger"},
{"A", "A Button"},
{"B", "B Button"},
{"Z", "Z Trigger"},
{"Start", "Start"},
{"C-Up", NULL}, {"C-Down", NULL}, {"C-Left", NULL}, {"C-Right", NULL},
{"None", "Disabled"},
{ NULL, NULL },
},
"R"
},
{
CORE_NAME "-r-cbutton",
"Right C Button",
Expand Down