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Virtua Gun support

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This commit is contained in:
David Walters 2017-11-19 23:09:40 +00:00
parent 6a34ba64e6
commit a4b3e3c8c3
3 changed files with 75 additions and 30 deletions
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90
input.cpp
View File

@ -19,6 +19,7 @@ static unsigned players = MAX_CONTROLLERS;
static int astick_deadzone = 0;
static int trigger_deadzone = 0;
static bool virtua_gun_trigger_rmb = false;
typedef union
{
@ -298,6 +299,11 @@ void input_set_deadzone_trigger( int percent )
trigger_deadzone = (int)( percent * 0.01f * 0x8000);
}
void input_set_virtua_gun_trigger( bool use_rmb )
{
virtua_gun_trigger_rmb = use_rmb;
}
void input_update( retro_input_state_t input_state_cb )
{
// For each player (logical controller)
@ -558,43 +564,71 @@ void input_update( retro_input_state_t input_state_cb )
{
p_input->u8[0x4] = 0;
// trigger
if ( input_state_cb( iplayer, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_TRIGGER ) ) {
p_input->u8[0x4] |= 0x1; // Trigger
}
if ( input_state_cb( iplayer, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_TURBO ) ) {
p_input->u8[0x4] |= 0x4; // Offscreen Shot(Simulated)
// start button
if ( input_state_cb( iplayer, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_START ) ||
input_state_cb( iplayer, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START ) ||
input_state_cb( iplayer, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_BUTTON_4 ) ||
input_state_cb( iplayer, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_BUTTON_5 ) )
{
p_input->u8[0x4] |= 0x2; // Start
}
uint8_t shot_type = 0;
// -- Position
int gun_x_raw, gun_y_raw;
gun_x_raw = input_state_cb( iplayer, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X ) + 0x7fff;
gun_y_raw = input_state_cb( iplayer, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y ) + 0x7fff;
// .. scale into screen space:
// NOTE: this is complete hacky guesswork for this first pass, need to re-write.
int gun_x, gun_y;
gun_x = ( gun_x_raw * 21472 ) / (0x7fff << 1);
gun_y = ( gun_y_raw * 240 ) / (0x7fff << 1);
int gun_x_raw, gun_y_raw;
gun_x_raw = input_state_cb( iplayer, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X );
gun_y_raw = input_state_cb( iplayer, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y );
int gun_edge_detect = 32700;
// off-screen?
if ( ( ( gun_x_raw == 0 ) && ( gun_y_raw == 0 ) ) ||
( gun_x_raw < -gun_edge_detect ) ||
( gun_x_raw > gun_edge_detect ) ||
( gun_y_raw < -gun_edge_detect ) ||
( gun_y_raw > gun_edge_detect ) )
{
shot_type = ( 1 << 2 ); // Off-screen shot
gun_x = -16384; // magic position to disable cross-hair drawing.
gun_y = -16384;
}
else
{
shot_type = ( 1 << 0 ); // On-screen shot!
// .. scale into screen space:
// NOTE: the scaling here is semi-guesswork, need to re-write.
// TODO: Test with PAL games.
const int scale_x = 21472;
const int offset_x = 60;
const int scale_y = 240;
gun_x = ( ( gun_x_raw + offset_x + 0x7fff ) * scale_x ) / (0x7fff << 1);
gun_y = ( ( gun_y_raw + 0x7fff ) * scale_y ) / (0x7fff << 1);
}
// position
p_input->gun_pos[ 0 ] = gun_x;
p_input->gun_pos[ 1 ] = gun_y;
// log_cb( RETRO_LOG_INFO, "Gun: %d, %d\n", gun_x, gun_y );
unsigned mbutton_trigger;
unsigned mbutton_start;
// .. simulated off-screen shot?
// p_input->u8[0x4] |= 0x4;
if ( virtua_gun_trigger_rmb ) {
mbutton_trigger = RETRO_DEVICE_ID_MOUSE_RIGHT;
mbutton_start = RETRO_DEVICE_ID_MOUSE_LEFT;
} else {
mbutton_trigger = RETRO_DEVICE_ID_MOUSE_LEFT;
mbutton_start = RETRO_DEVICE_ID_MOUSE_RIGHT;
}
// trigger
if ( input_state_cb( iplayer, RETRO_DEVICE_MOUSE, 0, mbutton_trigger ) ) {
p_input->u8[4] |= shot_type;
}
// start
if ( input_state_cb( iplayer, RETRO_DEVICE_MOUSE, 0, mbutton_start ) ||
input_state_cb( iplayer, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START ) )
{
p_input->u8[0x4] |= ( 1 << 1 ); // Start Button
}
}
break;

1
input.h
View File

@ -15,6 +15,7 @@ extern void input_set_env( retro_environment_t environ_cb );
extern void input_set_deadzone_stick( int percent );
extern void input_set_deadzone_trigger( int percent );
extern void input_set_virtua_gun_trigger( bool use_rmb );
extern void input_update( retro_input_state_t input_state_cb );

14
libretro.cpp
View File

@ -2640,6 +2640,15 @@ static void check_variables(bool startup)
if ( environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value )
input_set_deadzone_trigger( atoi( var.value ) );
var.key = "beetle_saturn_virtuagun_trigger";
var.value = NULL;
if ( environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value )
{
bool newval = (!strcmp(var.value, "Right Mouse Button"));
input_set_virtua_gun_trigger( newval );
}
}
#ifdef NEED_CD
@ -3081,6 +3090,9 @@ void retro_set_environment( retro_environment_t cb )
static const struct retro_variable vars[] = {
{ "beetle_saturn_region", "System Region; Auto Detect|Japan|North America|Europe|South Korea|Asia (NTSC)|Asia (PAL)|Brazil|Latin America" },
{ "beetle_saturn_cart", "Cartridge; Auto Detect|None|Backup Memory|Extended RAM (1MB)|Extended RAM (4MB)|The King of Fighters '95|Ultraman: Hikari no Kyojin Densetsu" },
{ "beetle_saturn_analog_stick_deadzone", "3D Pad - Analog Deadzone; 15%|20%|25%|30%|0%|5%|10%"},
{ "beetle_saturn_trigger_deadzone", "3D Pad - Trigger Deadzone; 15%|20%|25%|30%|0%|5%|10%"},
{ "beetle_saturn_virtuagun_trigger", "Virtua Gun - Trigger; Left Mouse Button|Right Mouse Button" },
{ "beetle_saturn_cdimagecache", "CD Image Cache (restart); disabled|enabled" },
{ "beetle_saturn_autortc", "Automatically set RTC on game load; enabled|disabled" },
{ "beetle_saturn_autortc_lang", "BIOS language; english|german|french|spanish|italian|japanese" },
@ -3090,8 +3102,6 @@ void retro_set_environment( retro_environment_t cb )
{ "beetle_saturn_initial_scanline_pal", "Initial scanline PAL; 16|17|18|19|20|21|22|23|24|25|26|27|28|29|30|31|32|33|34|35|36|37|38|39|40|41|42|43|44|45|46|47|48|49|50|51|52|53|54|55|56|57|58|59|60|0|1|2|3|4|5|6|7|8|9|10|11|12|13|14|15" },
{ "beetle_saturn_last_scanline_pal", "Last scanline PAL; 271|272|273|274|275|276|277|278|279|280|281|282|283|284|285|286|287|230|231|232|233|234|235|236|237|238|239|240|241|242|243|244|245|246|247|248|249|250|251|252|253|254|255|256|257|258|259|260|261|262|263|264|265|266|267|268|269|270" },
{ "beetle_saturn_horizontal_blend", "Enable Horizontal Blend(blur); disabled|enabled" },
{ "beetle_saturn_analog_stick_deadzone", "Analog Deadzone (percent); 15|20|25|30|0|5|10"},
{ "beetle_saturn_trigger_deadzone", "Trigger Deadzone (percent); 15|20|25|30|0|5|10"},
{ NULL, NULL },
};