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Lightgun support 

move touchscreen lightgun input handling to its own method; support touch sensitivity

support reversing super scope trigger/cursor buttons for games like Operation Thunderbolt and T2: The Arcade Game where cursor is used for primary fire

removed debugging statements
This commit is contained in:
Yoshi Sugawara 2019-07-09 09:57:16 -10:00 committed by hunterk
parent 47e2cf8b73
commit 44401058a1
2 changed files with 254 additions and 56 deletions
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205
libretro/libretro.cpp
View File

@ -152,6 +152,22 @@ static overscan_mode crop_overscan_mode = OVERSCAN_CROP_ON; // default to crop
static aspect_mode aspect_ratio_mode = ASPECT_RATIO_4_3; // default to 4:3
static bool rom_loaded = false;
enum lightgun_mode
{
SETTING_GUN_INPUT_LIGHTGUN,
SETTING_GUN_INPUT_POINTER
};
static lightgun_mode setting_gun_input = SETTING_GUN_INPUT_LIGHTGUN;
// Touchscreen sensitivity vars
static int pointer_pressed = 0;
static const int POINTER_PRESSED_CYCLES = 4;
static int pointer_cycles_after_released = 0;
static int pointer_pressed_last_x = 0;
static int pointer_pressed_last_y = 0;
static bool setting_superscope_reverse_buttons = false;
void retro_set_environment(retro_environment_t cb)
{
environ_cb = cb;
@ -208,6 +224,8 @@ void retro_set_environment(retro_environment_t cb)
{ "snes9x_overscan", "Crop overscan; enabled|disabled|auto" },
{ "snes9x_aspect", "Preferred aspect ratio; 4:3|uncorrected|auto|ntsc|pal" },
{ "snes9x_region", "Console region (Reload core); auto|ntsc|pal" },
{ "snes9x_lightgun_mode", "Lightgun Mode; Lightgun|Touchscreen"},
{ "snes9x_superscope_reverse_buttons", "Super Scope reverse trigger buttons; disabled|enabled" },
{ "snes9x_superscope_crosshair", "Super Scope crosshair; 2|3|4|5|6|7|8|9|10|11|12|13|14|15|16|0|1" },
{ "snes9x_superscope_color", "Super Scope color; White|White (blend)|Red|Red (blend)|Orange|Orange (blend)|Yellow|Yellow (blend)|Green|Green (blend)|Cyan|Cyan (blend)|Sky|Sky (blend)|Blue|Blue (blend)|Violet|Violet (blend)|Pink|Pink (blend)|Purple|Purple (blend)|Black|Black (blend)|25% Grey|25% Grey (blend)|50% Grey|50% Grey (blend)|75% Grey|75% Grey (blend)" },
{ "snes9x_justifier1_crosshair", "Justifier 1 crosshair; 4|5|6|7|8|9|10|11|12|13|14|15|16|0|1|2|3" },
@ -518,6 +536,22 @@ static void update_variables(void)
}
}
var.key="snes9x_lightgun_mode";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
{
if ( !strcmp(var.value, "Touchscreen") ) {
setting_gun_input = SETTING_GUN_INPUT_POINTER;
} else {
setting_gun_input = SETTING_GUN_INPUT_LIGHTGUN;
}
}
var.key="snes9x_superscope_reverse_buttons";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
{
setting_superscope_reverse_buttons = strcmp(var.value, "enabled") == 0;
}
var.key="snes9x_superscope_crosshair";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
@ -1354,6 +1388,11 @@ static int scope_buttons[] =
};
static int scope_button_count = sizeof( scope_buttons ) / sizeof( int );
#define SUPER_SCOPE_TRIGGER 2
#define SUPER_SCOPE_CURSOR 3
#define SUPER_SCOPE_TURBO 4
#define SUPER_SCOPE_START 5
#define JUSTIFIER_TRIGGER 2
#define JUSTIFIER_START 3
#define JUSTIFIER_OFFSCREEN 4
@ -1462,6 +1501,144 @@ static void input_report_gun_position( unsigned port, int s9xinput )
S9xReportPointer(s9xinput, (int16_t)x, (int16_t)y);
}
static void input_handle_pointer_lightgun( unsigned port, unsigned gun_device, int s9xinput )
{
int x, y;
x = input_state_cb(port, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X);
y = input_state_cb(port, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y);
/*scale & clamp*/
x = ( ( x + 0x7FFF ) * g_screen_gun_width ) / 0xFFFF;
if ( x < 0 )
x = 0;
else if ( x >= g_screen_gun_width )
x = g_screen_gun_width - 1;
/*scale & clamp*/
y = ( ( y + 0x7FFF ) * g_screen_gun_height ) / 0xFFFF;
if ( y < 0 )
y = 0;
else if ( y >= g_screen_gun_height )
y = g_screen_gun_height - 1;
// Touch sensitivity: Keep the gun position held for a fixed number of cycles after touch is released
// because a very light touch can result in a misfire
if ( pointer_cycles_after_released > 0 && pointer_cycles_after_released < POINTER_PRESSED_CYCLES ) {
pointer_cycles_after_released++;
x = pointer_pressed_last_x;
y = pointer_pressed_last_y;
S9xReportPointer(s9xinput, (int16_t)x, (int16_t)y);
return;
}
if ( input_state_cb( port, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_PRESSED ) )
{
pointer_pressed = 1;
pointer_cycles_after_released = 0;
pointer_pressed_last_x = x;
pointer_pressed_last_y = y;
} else if ( pointer_pressed ) {
pointer_cycles_after_released++;
pointer_pressed = 0;
x = pointer_pressed_last_x;
y = pointer_pressed_last_y;
// unpress the primary trigger
switch (gun_device)
{
case RETRO_DEVICE_LIGHTGUN_SUPER_SCOPE:
S9xReportButton(MAKE_BUTTON(PAD_2, setting_superscope_reverse_buttons ? SUPER_SCOPE_CURSOR : SUPER_SCOPE_TRIGGER), false);
break;
case RETRO_DEVICE_LIGHTGUN_JUSTIFIER:
S9xReportButton(MAKE_BUTTON(PAD_2, JUSTIFIER_TRIGGER), false);
break;
case RETRO_DEVICE_LIGHTGUN_MACS_RIFLE:
S9xReportButton(MAKE_BUTTON(PAD_2, MACS_RIFLE_TRIGGER), false);
break;
default:
break;
}
return;
}
S9xReportPointer(s9xinput, (int16_t)x, (int16_t)y);
// triggers
switch (gun_device)
{
case RETRO_DEVICE_LIGHTGUN_SUPER_SCOPE:
{
bool start_pressed = false;
bool trigger_pressed = false;
bool turbo_pressed = false;
bool cursor_pressed = false;
if ( input_state_cb(port, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_PRESSED) ) {
int touch_count = input_state_cb(port, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_COUNT);
if ( touch_count == 4 ) {
// start button
start_pressed = true;
} else if ( touch_count == 3 ) {
turbo_pressed = true;
} else if ( touch_count == 2 ) {
if ( setting_superscope_reverse_buttons )
{
trigger_pressed = true;
} else
{
cursor_pressed = true;
}
} else {
if ( setting_superscope_reverse_buttons )
{
cursor_pressed = true;
} else
{
trigger_pressed = true;
}
}
}
S9xReportButton(MAKE_BUTTON(PAD_2, SUPER_SCOPE_START), start_pressed);
S9xReportButton(MAKE_BUTTON(PAD_2, SUPER_SCOPE_TRIGGER), trigger_pressed);
S9xReportButton(MAKE_BUTTON(PAD_2, SUPER_SCOPE_CURSOR), cursor_pressed);
bool old_turbo = turbo_pressed;
turbo_pressed = turbo_pressed && !snes_superscope_turbo_latch;
snes_superscope_turbo_latch = old_turbo;
S9xReportButton(MAKE_BUTTON(PAD_2, SUPER_SCOPE_TURBO), turbo_pressed);
break;
}
case RETRO_DEVICE_LIGHTGUN_JUSTIFIER:
{
bool trigger_pressed = false;
bool start_pressed = false;
bool offscreen = false;
if ( input_state_cb(port, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_PRESSED) ) {
int touch_count = input_state_cb(port, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_COUNT);
if ( touch_count == 3 ) {
start_pressed = true;
} else if ( touch_count == 2 ) {
offscreen = true;
} else {
trigger_pressed = true;
}
}
S9xReportButton(MAKE_BUTTON(PAD_2, JUSTIFIER_TRIGGER), trigger_pressed || offscreen);
S9xReportButton(MAKE_BUTTON(PAD_2, JUSTIFIER_START), start_pressed ? 1 : 0 );
S9xReportButton(MAKE_BUTTON(PAD_2, JUSTIFIER_OFFSCREEN), offscreen);
break;
}
case RETRO_DEVICE_LIGHTGUN_MACS_RIFLE:
{
int pressed = input_state_cb(port, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_PRESSED);
S9xReportButton(MAKE_BUTTON(PAD_2, MACS_RIFLE_TRIGGER),pressed);
break;
}
case RETRO_DEVICE_NONE:
break;
default:
if (log_cb)
log_cb(RETRO_LOG_ERROR, "Unknown device for touchscreen lightgun...\n");
}
}
static void report_buttons()
{
int offset = snes_devices[0] == RETRO_DEVICE_JOYPAD_MULTITAP ? 4 : 1;
@ -1494,6 +1671,10 @@ static void report_buttons()
case RETRO_DEVICE_LIGHTGUN_SUPER_SCOPE:
if ( setting_gun_input == SETTING_GUN_INPUT_POINTER ) {
input_handle_pointer_lightgun(port, RETRO_DEVICE_LIGHTGUN_SUPER_SCOPE, BTN_POINTER);
} else {
// Lightgun is default
input_report_gun_position( port, BTN_POINTER );
for (int i = 0; i < scope_button_count; i++)
@ -1508,13 +1689,26 @@ static void report_buttons()
btn = btn && !snes_superscope_turbo_latch;
snes_superscope_turbo_latch = old;
}
S9xReportButton(MAKE_BUTTON(PAD_2, i+2), btn);
int super_scope_button_id = i+2;
if ( setting_superscope_reverse_buttons )
{
if ( super_scope_button_id == SUPER_SCOPE_TRIGGER ) {
super_scope_button_id = SUPER_SCOPE_CURSOR;
} else if ( super_scope_button_id == SUPER_SCOPE_CURSOR ) {
super_scope_button_id = SUPER_SCOPE_TRIGGER;
}
}
S9xReportButton(MAKE_BUTTON(PAD_2, super_scope_button_id), btn);
}
}
break;
case RETRO_DEVICE_LIGHTGUN_JUSTIFIER:
if ( setting_gun_input == SETTING_GUN_INPUT_POINTER ) {
input_handle_pointer_lightgun(port, RETRO_DEVICE_LIGHTGUN_JUSTIFIER, BTN_POINTER);
} else {
// Lightgun is default
input_report_gun_position( port, BTN_POINTER );
{
@ -1556,11 +1750,14 @@ static void report_buttons()
int btn_offscreen = input_state_cb( second, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_IS_OFFSCREEN );
S9xReportButton(MAKE_BUTTON(PAD_3, JUSTIFIER_OFFSCREEN), btn_offscreen || btn_offscreen_shot);
}
}
break;
case RETRO_DEVICE_LIGHTGUN_MACS_RIFLE:
if ( setting_gun_input == SETTING_GUN_INPUT_POINTER ) {
input_handle_pointer_lightgun(port, RETRO_DEVICE_LIGHTGUN_MACS_RIFLE, BTN_POINTER);
} else {
input_report_gun_position( port, BTN_POINTER );
{
@ -1568,7 +1765,7 @@ static void report_buttons()
int btn_trigger = input_state_cb( port, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_TRIGGER );
S9xReportButton(MAKE_BUTTON(PAD_2, MACS_RIFLE_TRIGGER), btn_trigger);
}
}
break;
case RETRO_DEVICE_NONE:

1
libretro/libretro.h
View File

@ -246,6 +246,7 @@ extern "C" {
#define RETRO_DEVICE_ID_POINTER_X 0
#define RETRO_DEVICE_ID_POINTER_Y 1
#define RETRO_DEVICE_ID_POINTER_PRESSED 2
#define RETRO_DEVICE_ID_POINTER_COUNT 3
/* Returned from retro_get_region(). */
#define RETRO_REGION_NTSC 0