mirror of https://github.com/bsnes-emu/bsnes.git
133 lines
3.3 KiB
C++
133 lines
3.3 KiB
C++
#ifdef CONTROLLER_CPP
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void Justifier::enter() {
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unsigned prev = 0;
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while(true) {
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unsigned next = cpu.vcounter() * 1364 + cpu.hcounter();
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signed x = (active == 0 ? player1.x : player2.x), y = (active == 0 ? player1.y : player2.y);
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bool offscreen = (x < 0 || y < 0 || x >= 256 || y >= (ppu.overscan() ? 240 : 225));
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if(offscreen == false) {
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unsigned target = y * 1364 + (x + 24) * 4;
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if(next >= target && prev < target) {
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//CRT raster detected, toggle iobit to latch counters
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iobit(0);
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iobit(1);
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}
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}
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if(next < prev) {
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int nx1 = interface->inputPoll(port, device, 0 + (unsigned)Input::JustifierID::X);
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int ny1 = interface->inputPoll(port, device, 0 + (unsigned)Input::JustifierID::Y);
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nx1 += player1.x;
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ny1 += player1.y;
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player1.x = max(-16, min(256 + 16, nx1));
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player1.y = max(-16, min(240 + 16, ny1));
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}
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if(next < prev && chained) {
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int nx2 = interface->inputPoll(port, device, 4 + (unsigned)Input::JustifierID::X);
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int ny2 = interface->inputPoll(port, device, 4 + (unsigned)Input::JustifierID::Y);
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nx2 += player2.x;
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ny2 += player2.y;
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player2.x = max(-16, min(256 + 16, nx2));
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player2.y = max(-16, min(240 + 16, ny2));
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}
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prev = next;
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step(2);
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}
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}
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uint2 Justifier::data() {
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if(counter >= 32) return 1;
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if(counter == 0) {
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player1.trigger = interface->inputPoll(port, device, 0 + (unsigned)Input::JustifierID::Trigger);
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player1.start = interface->inputPoll(port, device, 0 + (unsigned)Input::JustifierID::Start);
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}
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if(counter == 0 && chained) {
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player2.trigger = interface->inputPoll(port, device, 4 + (unsigned)Input::JustifierID::Trigger);
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player2.start = interface->inputPoll(port, device, 4 + (unsigned)Input::JustifierID::Start);
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}
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switch(counter++) {
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case 0: return 0;
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case 1: return 0;
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case 2: return 0;
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case 3: return 0;
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case 4: return 0;
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case 5: return 0;
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case 6: return 0;
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case 7: return 0;
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case 8: return 0;
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case 9: return 0;
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case 10: return 0;
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case 11: return 0;
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case 12: return 1; //signature
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case 13: return 1; // ||
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case 14: return 1; // ||
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case 15: return 0; // ||
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case 16: return 0;
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case 17: return 1;
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case 18: return 0;
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case 19: return 1;
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case 20: return 0;
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case 21: return 1;
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case 22: return 0;
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case 23: return 1;
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case 24: return player1.trigger;
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case 25: return player2.trigger;
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case 26: return player1.start;
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case 27: return player2.start;
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case 28: return active;
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case 29: return 0;
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case 30: return 0;
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case 31: return 0;
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}
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}
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void Justifier::latch(bool data) {
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if(latched == data) return;
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latched = data;
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counter = 0;
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if(latched == 0) active = !active; //toggle between both controllers, even when unchained
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}
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Justifier::Justifier(bool port, bool chained):
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Controller(port),
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chained(chained),
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device(chained == false ? (unsigned)Input::Device::Justifier : (unsigned)Input::Device::Justifiers)
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{
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create(Controller::Enter, 21477272);
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latched = 0;
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counter = 0;
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active = 0;
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player1.x = 256 / 2;
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player1.y = 240 / 2;
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player1.trigger = false;
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player2.start = false;
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player2.x = 256 / 2;
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player2.y = 240 / 2;
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player2.trigger = false;
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player2.start = false;
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if(chained == false) {
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player2.x = -1;
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player2.y = -1;
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} else {
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player1.x -= 16;
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player2.x += 16;
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}
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}
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#endif
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