mirror of https://github.com/bsnes-emu/bsnes.git
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
Gamepad::Gamepad(bool port) : Controller(port) {
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latched = 0;
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counter = 0;
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b = y = select = start = 0;
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up = down = left = right = 0;
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a = x = l = r = 0;
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}
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auto Gamepad::data() -> uint2 {
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if(counter >= 16) return 1;
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if(latched == 1) return interface->inputPoll(port, (unsigned)Device::ID::Gamepad, B);
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//note: D-pad physically prevents up+down and left+right from being pressed at the same time
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switch(counter++) {
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case 0: return b;
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case 1: return y;
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case 2: return select;
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case 3: return start;
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case 4: return up & !down;
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case 5: return down & !up;
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case 6: return left & !right;
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case 7: return right & !left;
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case 8: return a;
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case 9: return x;
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case 10: return l;
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case 11: return r;
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}
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return 0; //12-15: signature
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}
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auto Gamepad::latch(bool data) -> void {
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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) {
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auto id = (unsigned)Device::ID::Gamepad;
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b = interface->inputPoll(port, id, B);
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y = interface->inputPoll(port, id, Y);
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select = interface->inputPoll(port, id, Select);
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start = interface->inputPoll(port, id, Start);
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up = interface->inputPoll(port, id, Up);
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down = interface->inputPoll(port, id, Down);
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left = interface->inputPoll(port, id, Left);
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right = interface->inputPoll(port, id, Right);
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a = interface->inputPoll(port, id, A);
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x = interface->inputPoll(port, id, X);
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l = interface->inputPoll(port, id, L);
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r = interface->inputPoll(port, id, R);
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}
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}
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