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#include "../shared/protocol.h"
#include "../shared/util.h"
#include "commands.h"
#include "ui.h"
/** decay modifier */
#define W2_DIRC_MOD ((double)0.95)
/** add value per key press */
#define W2_DIRC_ADD ((double)17.0)
/** padding */
#define W2_DIRC_PAD ((double)3.00)
/** average samples */
#define W2_DIRC_SPL ((unsigned int)14)
/** steering padding */
#define W2_DIRC_STP ((double)0.2)
int w2_avg(int *samples, unsigned int sample_count) {
double total = 0;
for (int i = 0; i < sample_count; i++) {
total += (double)samples[i] / (double)sample_count;
}
return (int)total;
}
#define W2_DIRC_MOTOR_DRIVER(name) \
int w2_dirc_motor_##name(unsigned int forward, unsigned int backward) { \
static unsigned int idx = 0; \
\
static double drive = 0.f; \
static int drive_avg[W2_DIRC_SPL] = {0}; \
\
drive *= W2_DIRC_MOD; \
drive += W2_DIRC_ADD * forward + -W2_DIRC_ADD * backward; \
drive = W2_RANGE(-254, drive, 255); \
\
idx = (idx + 1) % W2_DIRC_SPL; \
drive_avg[idx] = (int)W2_RANGE(-254, drive * W2_DIRC_PAD, 255); \
\
return w2_avg(drive_avg, W2_DIRC_SPL); \
}
W2_DIRC_MOTOR_DRIVER(l);
W2_DIRC_MOTOR_DRIVER(r);
void w2_ui_dirc_init() { w2_send_mode(W2_M_DIRC); }
void w2_ui_bar_graph(unsigned int y, unsigned int x, unsigned int width, double value) {
char temp[width];
temp[0] = '|';
temp[width - 1] = '|';
for (unsigned int i = 0; i < width - 2; i++) temp[i + 1] = i < width * value ? '*' : ' ';
mvaddnstr(y, x, temp, width);
}
void w2_ui_bar_graph_pm(unsigned int y, unsigned int x, unsigned int width, double value) {
char temp[width];
temp[0] = '|';
temp[width - 1] = '|';
width -= 2;
unsigned int hw = width / 2;
if (value >= 0) {
for (unsigned int i = 0; i < width; i++)
temp[i + 1] = i < hw ? ' ' : (i - hw) < (hw * value) ? '*' : ' ';
} else {
for (unsigned int i = 0; i < width; i++)
temp[i + 1] = i > hw ? ' ' : (hw - i) < -(hw * value) ? '*' : ' ';
}
mvaddnstr(y, x, temp, width + 2);
}
void w2_ui_dirc_paint(int left, int right) {
mvaddstr(4, 0, "left drive: ");
w2_ui_bar_graph_pm(4, 13, g_w2_ui_width - 13, (double)left / 255);
mvaddstr(5, 0, "right drive: ");
w2_ui_bar_graph_pm(5, 13, g_w2_ui_width - 13, (double)right / 255);
mvaddstr(7, 0,
" controls:\n"
"\n"
" <q> <w> <e> forward\n"
" <a> <s> <d> backward\n"
"left both right\n");
}
void w2_ui_dirc(bool first) {
if (first) w2_ui_dirc_init();
int ch = 0;
unsigned int lb = 0;
unsigned int lf = 0;
unsigned int rb = 0;
unsigned int rf = 0;
while ((ch = getch()) != -1) {
if (ch == 'e' || ch == 'w') lf++;
if (ch == 'd' || ch == 's') lb++;
if (ch == 'q' || ch == 'w') rf++;
if (ch == 'a' || ch == 's') rb++;
}
int drive_l = w2_dirc_motor_l(lf, lb);
int drive_r = w2_dirc_motor_r(rf, rb);
drive_l += drive_r * W2_DIRC_STP;
drive_r += drive_l * W2_DIRC_STP;
w2_send_dirc(drive_l, drive_r);
w2_ui_dirc_paint(drive_l, drive_r);
}
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