To give you all a feeling from the good-old C64 demo scene, press UP or DOWN

and then change the values with LEFT and RIGHT. Enjoy!


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2211 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 77 insertions, 14 deletions

diff --git a/apps/recorder/bounce.c b/apps/recorder/bounce.c
index 121f039e82..8f6ffe6226 100644
--- a/apps/recorder/bounce.c
+++ b/apps/recorder/bounce.c
@@ -26,6 +26,7 @@
 #include "button.h"
 #include "kernel.h"
 #include "menu.h"
+#include "sprintf.h"
 
 #ifdef SIMULATOR
 #include <stdio.h>
@@ -35,49 +36,111 @@
 #define SS_TITLE       "Bouncer"
 #define SS_TITLE_FONT  2
 
-unsigned char table[]={
+static unsigned char table[]={
 26,28,30,33,35,37,39,40,42,43,45,46,46,47,47,47,47,47,46,46,45,43,42,40,39,37,35,33,30,28,26,24,21,19,17,14,12,10,8,7,5,4,2,1,1,0,0,0,0,0,1,1,2,4,5,7,8,10,12,14,17,19,21,23,
 };
 
-unsigned char xtable[]={
+static unsigned char xtable[]={
 54,58,63,67,71,75,79,82,85,88,91,93,95,97,98,99,99,99,99,99,97,96,94,92,90,87,84,80,77,73,69,65,60,56,52,47,43,39,34,30,26,22,19,15,12,9,7,5,3,2,0,0,0,0,0,1,2,4,6,8,11,14,17,20,24,28,32,36,41,45,49
 };
 
+static signed char speed[]={
+  1,2,3,3,3,2,1,0,-1,-2,-2,-2,-1,0,0,1,
+};
+
+
 #define XDIFF -4
 #define YDIFF -6
 
 extern const unsigned char char_gen_12x16[][22];
 
+enum {
+  NUM_XSANKE,
+  NUM_YSANKE,
+  NUM_XADD,
+  NUM_YADD,
+  NUM_XDIST,
+  NUM_YDIST,
+
+  NUM_LAST
+};
+
+struct counter {
+  char *what;
+  int num;
+};
+
+struct counter values[]={
+  {"xsanke", 1},
+  {"ysanke", 1},
+  {"xadd", 1},
+  {"yadd", 1},
+  {"xdist", -4},
+  {"ydistt", -6},
+};
+
 static void loopit(void)
 {
     int b;
-    int y=0;
-    int x=16;
-    int yy,xx;
+    unsigned int y=100;
+    unsigned int x=100;
+    unsigned int yy,xx;
     unsigned int i;
+    unsigned int ysanke=0;
+    unsigned int xsanke=0;
 
     char rock[]="ROCKbox";
 
+    int show=0;
+    int timeout=0;
+    char buffer[30];
+
     lcd_clear_display();
     while(1)
     {
-        b = button_get(false);
+        b = button_get_w_tmo(HZ/10);
         if ( b & BUTTON_OFF )
-            return;
+            break;
+        else if(b != BUTTON_NONE)
+            timeout=20;
 
-        lcd_clear_display();
-        y++;
-        x++;
+        y+= speed[ysanke&15] + values[NUM_YADD].num;
+        x+= speed[xsanke&15] + values[NUM_XADD].num;
 
-        yy=y;
-        xx=x;
-        for(i=0; i<sizeof(rock)-1; i++, yy+=YDIFF, xx+=XDIFF)
+        lcd_clear_display();
+        if(timeout) {
+            switch(b) {
+                case BUTTON_LEFT:
+                  values[show].num--;
+                  break;
+                case BUTTON_RIGHT:
+                  values[show].num++;
+                  break;
+                case BUTTON_UP:
+                  if(++show == NUM_LAST)
+                      show=0;
+                  break;
+                case BUTTON_DOWN:
+                  if(--show < 0)
+                      show=NUM_LAST-1;
+                  break;
+            }
+            snprintf(buffer, 30, "%s: %d",
+                     values[show].what, values[show].num);
+            lcd_putsxy(0, 56, buffer, 0);
+            timeout--;
+        }
+        for(i=0, yy=y, xx=x;
+            i<sizeof(rock)-1;
+            i++, yy+=values[NUM_YDIST].num, xx+=values[NUM_XDIST].num)
           lcd_bitmap((char *)char_gen_12x16[rock[i]-0x20],
                      xtable[xx%71], table[yy&63],
                      11, 16, false);
+
         lcd_update();
 
-        sleep(HZ/10);
+        ysanke+= values[NUM_YSANKE].num;
+        xsanke+= values[NUM_XSANKE].num;
     }
 }