diff --git a/chunihook/jvs.c b/chunihook/jvs.c new file mode 100644 index 00000000..b5057405 --- /dev/null +++ b/chunihook/jvs.c @@ -0,0 +1,96 @@ +#include + +#include +#include +#include + +#include "board/io3.h" + +#include "jvs/jvs-bus.h" + +#include "nu/jvs.h" + +#include "util/dprintf.h" + +static void chunithm_jvs_read_switches(void *ctx, struct io3_switch_state *out); +static uint16_t chunithm_jvs_consume_coins(void *ctx, uint8_t slot_no); + +static const struct io3_ops chunithm_jvs_io3_ops = { + .read_switches = chunithm_jvs_read_switches, + .consume_coins = chunithm_jvs_consume_coins, +}; + +static struct io3 chunithm_jvs_io3; +static size_t chunithm_jvs_rise_pos; +static bool chunithm_jvs_coin; + +void chunithm_jvs_init(void) +{ + io3_init(&chunithm_jvs_io3, NULL, &chunithm_jvs_io3_ops, NULL); + jvs_attach(&chunithm_jvs_io3.jvs); +} + +static void chunithm_jvs_read_switches(void *ctx, struct io3_switch_state *out) +{ + assert(out != NULL); + + /* Update simulated raise/lower state */ + + if (GetAsyncKeyState(VK_SPACE)) { + if (chunithm_jvs_rise_pos < 6) { + chunithm_jvs_rise_pos++; + } + } else { + if (chunithm_jvs_rise_pos > 0) { + chunithm_jvs_rise_pos--; + } + } + + /* Render the state. Every case falls through, this is intentional. */ + + out->p1 = 0; + out->p2 = 0; + + switch (chunithm_jvs_rise_pos) { + case 0: out->p2 |= 0x0020; + case 1: out->p1 |= 0x0020; + case 2: out->p2 |= 0x0010; + case 3: out->p1 |= 0x0010; + case 4: out->p2 |= 0x0008; + case 5: out->p1 |= 0x0008; + } + + /* Update test/service buttons */ + + if (GetAsyncKeyState('1')) { + out->system = 0x80; + } else { + out->system = 0; + } + + if (GetAsyncKeyState('2')) { + out->p1 |= 0x4000; + } +} + +static uint16_t chunithm_jvs_consume_coins(void *ctx, uint8_t slot_no) +{ + if (slot_no > 0) { + return 0; + } + + if (GetAsyncKeyState('3')) { + if (chunithm_jvs_coin) { + return 0; + } else { + dprintf("Chunithm JVS: Coin drop\n"); + chunithm_jvs_coin = true; + + return 1; + } + } else { + chunithm_jvs_coin = false; + + return 0; + } +} diff --git a/chunihook/jvs.h b/chunihook/jvs.h new file mode 100644 index 00000000..72d89214 --- /dev/null +++ b/chunihook/jvs.h @@ -0,0 +1,3 @@ +#pragma once + +void chunithm_jvs_init(void); diff --git a/chunihook/meson.build b/chunihook/meson.build index 1e9c1385..5cf005c4 100644 --- a/chunihook/meson.build +++ b/chunihook/meson.build @@ -16,5 +16,7 @@ shared_library( util_lib, ], sources : [ + 'jvs.c', + 'jvs.h', ], )