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annotate src/controller.c @ 50:8e39a877c651

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author Michael Pavone <pavone@retrodev.com>
date Wed, 31 Aug 2016 20:29:45 -0700
parents b87b3ad5068c
children
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31
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1 #include <stdint.h>
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2 #include <string.h>
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3 #include "controller.h"
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4
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5 static controllers *current_context;
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6
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7 //UDLR SMAB CXYZ
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8
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9 void controller_init(controllers *context)
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10 {
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11 memset(context, 0, sizeof(controllers));
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12 current_context = context;
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13 }
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14
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15 void controller_pressed(int which, uint16_t buttons)
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16 {
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17 if (which > 1) {
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18 return;
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19 }
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20 current_context->state[which] |= buttons;
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21 }
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22
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23 void controller_released(int which, uint16_t buttons)
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24 {
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25 if (which > 1) {
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26 return;
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27 }
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28 current_context->state[which] &= (~buttons) & 0xFFF;
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29 }
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30
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31 uint16_t controller_read(controllers *context, int which)
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32 {
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33 if (which > 1) {
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34 return 0xFFFF;
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35 }
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36 return context->state[which];
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37 }