From 79f2164bb6fe1727be284e5208ae402379341009 Mon Sep 17 00:00:00 2001
From: lonkaars <loek@pipeframe.xyz>
Date: Mon, 30 May 2022 16:53:00 +0200
Subject: terminal drive control concept

---
 client/setup.c   |  2 ++
 client/time.h    |  5 ++++-
 client/ui.c      | 11 ++++++++---
 client/ui.h      |  5 +++++
 client/ui_dirc.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 69 insertions(+), 4 deletions(-)
 create mode 100644 client/ui_dirc.c

diff --git a/client/setup.c b/client/setup.c
index a7db057..50395e0 100644
--- a/client/setup.c
+++ b/client/setup.c
@@ -31,6 +31,8 @@ void w2_client_setup(int argc, char **argv) {
 		exit(1);
 	}
 	noecho();
+	curs_set(false);
+	nodelay(g_w2_ui_win, true);
 
 	w2_strings_init();
 	w2_cmd_setup_handlers();
diff --git a/client/time.h b/client/time.h
index 253451d..30c8124 100644
--- a/client/time.h
+++ b/client/time.h
@@ -3,7 +3,10 @@
 /** amount of parallel timers */
 #define W2_CLIENT_TIMER_COUNT (4)
 extern unsigned long g_w2_client_timers[W2_CLIENT_TIMER_COUNT];
-typedef enum { W2_TIMER_PING = 0 } w2_e_client_timers;
+typedef enum {
+	W2_TIMER_PING = 0,
+	W2_TIMER_UPDATE = 1,
+} w2_e_client_timers;
 
 void w2_timer_start(w2_e_client_timers label);
 unsigned long w2_timer_end(w2_e_client_timers label);
diff --git a/client/ui.c b/client/ui.c
index 869a071..999e4eb 100644
--- a/client/ui.c
+++ b/client/ui.c
@@ -8,10 +8,12 @@
 #include "strings.h"
 #include "term.h"
 #include "ui.h"
+#include "time.h"
 
 WINDOW *g_w2_ui_win;
 unsigned int g_w2_ui_width	= 0;
 unsigned int g_w2_ui_height = 0;
+void (*g_w2_ui_current_tab)() = &w2_ui_dirc;
 
 void w2_ui_main() {
 	g_w2_ui_width  = getmaxx(g_w2_ui_win);
@@ -22,11 +24,15 @@ void w2_ui_main() {
 
 void w2_ui_paint() {
 	w2_ui_paint_statusbar();
+	if (w2_timer_end(W2_TIMER_UPDATE) >= (1000 / W2_UI_UPDATE_FPS)) {
+		(*g_w2_ui_current_tab)();
+		w2_timer_start(W2_TIMER_UPDATE);
+	}
 	refresh();
 }
 
 void w2_ui_paint_statusbar() {
-	char temp[g_w2_ui_width + 1];
+	char temp[g_w2_ui_width];
 	sprintf(temp, "%s, %ims %s",
 			g_w2_state.connected ? W2_UI_CONN_STAT_CONNECTED : W2_UI_CONN_STAT_DISCONNECTED,
 			g_w2_state.ping, W2_UI_CONN_STAT_PING);
@@ -47,8 +53,7 @@ void w2_ui_paint_statusbar() {
 	w2_ui_paint_tabbar();
 
 	for (unsigned int i = 0; i < g_w2_ui_width; i++) temp[i] = '-';
-	temp[g_w2_ui_width] = 0;
-	mvaddstr(3, 0, temp);
+	mvaddnstr(3, 0, temp, g_w2_ui_width);
 }
 
 void w2_ui_paint_tabbar() {
diff --git a/client/ui.h b/client/ui.h
index cac7f46..f749fa0 100644
--- a/client/ui.h
+++ b/client/ui.h
@@ -3,9 +3,12 @@
 #include <ncurses.h>
 #include <stdint.h>
 
+#define W2_UI_UPDATE_FPS (60)
+
 extern WINDOW *g_w2_ui_win;
 extern unsigned int g_w2_ui_width;
 extern unsigned int g_w2_ui_height;
+extern void (*g_w2_ui_current_tab)();
 
 /** update terminal props */
 void w2_ui_update();
@@ -20,3 +23,5 @@ void w2_ui_main();
 void w2_ui_paint_statusbar();
 /** draw tab bar */
 void w2_ui_paint_tabbar();
+
+void w2_ui_dirc();
diff --git a/client/ui_dirc.c b/client/ui_dirc.c
new file mode 100644
index 0000000..cddd2c4
--- /dev/null
+++ b/client/ui_dirc.c
@@ -0,0 +1,50 @@
+#include "../shared/util.h"
+#include "ui.h"
+
+void w2_ui_bar_graph(unsigned int percent) {
+	unsigned int width = g_w2_ui_width - 7;
+	char bar[width];
+	for(unsigned int i = 0; i < width - 2; i++) {
+		bar[i+1] = i > (width - 2) * percent / 100 ? ' ' : '*';
+	}
+	bar[0] = '|';
+	bar[width - 1] = '|';
+	mvaddnstr(4, 7, bar, width);
+}
+
+#define W2_DIRC_MOD ((double) 0.95)
+#define W2_DIRC_ADD ((double) 13.0)
+#define W2_DIRC_PAD ((double) 1.10)
+#define W2_DIRC_SPL ((unsigned int) 20)
+
+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;
+}
+
+void w2_ui_dirc() {
+	static unsigned int idx = 0;
+	int ch = 0;
+	unsigned int presses = 0;
+
+	static double drive_l = 0.f;
+	static int drive_l_avg[W2_DIRC_SPL] = {0};
+
+
+	while ((ch = getch()) != -1) {
+		if (ch == 'a') presses++;
+	}
+
+	drive_l *= W2_DIRC_MOD;
+	drive_l += W2_DIRC_ADD * presses;
+	drive_l = W2_MIN(100, drive_l);
+
+	idx = (idx + 1) % W2_DIRC_SPL;
+	drive_l_avg[idx] = (int) W2_MIN(100, drive_l * W2_DIRC_PAD);
+
+	mvaddstr(4, 0, "drive: ");
+	w2_ui_bar_graph(w2_avg(drive_l_avg, W2_DIRC_SPL));
+}
-- 
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