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/*
* This file is part of din.
*
* din is copyright (c) 2006 - 2012 S Jagannathan <jag@dinisnoise.org>
* For more information, please visit http://dinisnoise.org
*
* din is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* din is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with din. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __input
#define __input
#include <string.h>
#include "chrono.h"
struct key_stamp {
double dt;
double t;
key_stamp () {
t = 0;
dt = 0;
}
};
struct key_state {
static const int NUM_BYTES = 32;
char now [NUM_BYTES];
char last [NUM_BYTES];
static const int MAX_KEYS = 256;
key_stamp stamp [MAX_KEYS];
key_state () {
memset (now, 0, NUM_BYTES);
memset (last, 0, NUM_BYTES);
}
};
extern key_state keys;
inline int keydown (int k) {
int quo = k >> 3;
unsigned int rem = k - (quo << 3);
return ((keys.now[quo] >> rem) & 0x01);
}
inline int waskeydown (int k) {
int quo = k >> 3;
unsigned int rem = k - (quo << 3);
return ( (keys.last[quo] >> rem) & 0x01);
}
inline int keypressed (int k) {
return (!waskeydown(k) && keydown(k));
}
extern nano_chrono ui_clk;
inline int keypressedd (int k, double firstt = 1./3, double constt = 1./20) {
/* keypressed with key repeat */
if (keydown(k)) {
if (!waskeydown(k)) {
keys.stamp[k].dt = firstt;
keys.stamp[k].t = ui_clk.secs;
return 1;
} else {
double dt = ui_clk.secs - keys.stamp[k].t;
if (dt > keys.stamp[k].dt) {
keys.stamp[k].dt = constt;
keys.stamp[k].t = ui_clk.secs;
return 1;
}
}
}
return 0;
}
#endif
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