mirror of https://github.com/JorjBauer/aiie.git
54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
#include "teensy-paddles.h"
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/* C061: Open Apple (Paddle 0 button pressed if &= 0x80)
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* C062: Closed Apple (Paddle 1 button pressed if &= 0x80)
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* C064: PADDLE0 (sets bit 0x80 when value reached, increments of 11 us)
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* C065: PADDLE1 (sets bit 0x80 when value reached, increments of 11 us)
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* C070: "start reading paddle data" - "may take up to 3 milliseconds"
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*/
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#define PADDLE0 A24
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#define PADDLE1 A23
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#include "globals.h"
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TeensyPaddles::TeensyPaddles()
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{
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pinMode(PADDLE0, INPUT);
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pinMode(PADDLE1, INPUT);
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}
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TeensyPaddles::~TeensyPaddles()
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{
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}
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uint8_t TeensyPaddles::paddle0()
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{
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uint8_t raw = 255 - analogRead(PADDLE0);
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return raw;
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// 40 .. 200 on the old joystick
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if (raw >200) raw = 200;
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if (raw < 40) raw = 40;
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return map(raw, 40, 200, 0, 255);
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}
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uint8_t TeensyPaddles::paddle1()
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{
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uint8_t raw = analogRead(PADDLE1);
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return raw;
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// 60..200 on the old joystick
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if (raw >200) raw = 200;
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if (raw < 60) raw = 60;
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return map(raw, 60, 200, 0, 255);
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}
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void TeensyPaddles::startReading()
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{
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g_vm->triggerPaddleInCycles(0, 12 * paddle0());
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g_vm->triggerPaddleInCycles(1, 12 * paddle1());
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}
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