3 files changed, 123 insertions, 0 deletions
diff --git a/apps/plugins/CATEGORIES b/apps/plugins/CATEGORIES
index 609f359..5720933 100644
--- a/apps/plugins/CATEGORIES
+++ b/apps/plugins/CATEGORIES
@@ -16,6 +16,7 @@ chessbox,games
 chessclock,apps
 chip8,viewers
 chopper,games
+clicker,apps
 clix,games
 clock,apps
 codebuster,games
diff --git a/apps/plugins/SOURCES b/apps/plugins/SOURCES
index fba1655..35b8c14 100644
--- a/apps/plugins/SOURCES
+++ b/apps/plugins/SOURCES
@@ -3,6 +3,7 @@
 battery_bench.c
 #endif
 chessclock.c
+clicker.c
 credits.c
 cube.c
 dict.c
diff --git a/apps/plugins/clicker.c b/apps/plugins/clicker.c
new file mode 100644
index 0000000..196faf2
--- /dev/null
+++ b/apps/plugins/clicker.c
@@ -0,0 +1,121 @@
+#include "plugin.h"
+#include "lib/pluginlib_actions.h"
+#include "lib/pluginlib_exit.h"
+
+#define MAX_DIGITS 128
+
+/* data is stored like this:
+   units: data[0] &0xF;
+   10s:   data[0] >> 4;
+   100s:  data[1] &0xF;
+   100s:  data[1] >> 4;
+   etc.
+*/
+/* 0xF in a nibble indicates no digit */
+unsigned char count_data[MAX_DIGITS/2];
+
+/* this plugin is really the epitome of overkill :D */
+unsigned char read_digit(int idx)
+{
+    if(idx%2)
+        return count_data[idx/2] >> 4;
+    else
+        return count_data[idx/2] &0xF;
+}
+
+void write_digit(int idx, unsigned char val)
+{
+    unsigned char raw=count_data[idx/2];
+    if(idx%2)
+    {
+        /* isolate the LOW half because we're changing the HIGH half */
+        raw &= 0x0F;
+        raw |= val << 4;
+    }
+    else
+    {
+        raw &= 0xF0;
+        raw |= val;
+    }
+    count_data[idx/2]=raw;
+}
+
+void increment(void)
+{
+    int units_digit=read_digit(0)+1;
+    if(units_digit<10)
+    {
+        write_digit(0, units_digit);
+        return;
+    }
+    /* there's been a carry in the units place */
+    int carry=1;
+    write_digit(0, 0);
+    for(int i=1;i<MAX_DIGITS && carry;++i)
+    {
+        int read_value=read_digit(i);
+        if(read_value==0xF)
+            read_value=0;
+        int digit=read_value + carry;
+        if(digit<10)
+        {
+            carry=0;
+        }
+        else
+        {
+            carry=1;
+            digit=0;
+        }
+        write_digit(i, digit);
+    }
+}
+
+void draw(void)
+{
+    rb->lcd_clear_display();
+    int next_x=0;
+    for(int i=MAX_DIGITS-1;i>=0;--i)
+    {
+        int digit=read_digit(i);
+        if(digit!=0xF)
+        {
+            rb->lcd_putsf(next_x, 0, "%d", digit);
+            next_x++;
+        }
+    }
+}
+
+enum plugin_status plugin_start(const void* param){
+    (void)param;
+    rb->memset(count_data, 0xFF, sizeof(count_data));
+    write_digit(0, 0);
+    draw();
+    rb->lcd_update();
+    const struct button_mapping *ctxs[]={pla_main_ctx};
+    int run=1;
+    int f=0;
+
+    while (run == 1) {
+        int btn;
+        switch (btn=pluginlib_getaction(-1,ctxs,1))
+        {
+        case PLA_SELECT:
+            if (f != 1) {
+                increment();
+                draw();
+                rb->lcd_update();
+                f=1;
+            }
+            break;
+        case PLA_EXIT:
+        case PLA_CANCEL:
+            run=0;
+            break;
+        default :
+            f=0;
+            exit_on_usb(btn);
+            break;
+        }
+    }
+    return PLUGIN_OK;
+}