#include <sysinit.h>
#include "basic/basic.h"
#include "lcd/lcd.h"
#include "usetable.h"
#define O_FIXED 1023
#define SPP 10
static void draw_rakett (int x, int y, int scale, int angle);
static int my_gray (int x, int y, void *data);
static int o_sin(int x);
static int o_cos(int x);
static int frame_no = 0;
#define ANIM(start_val, end_val) \
(((start_val) * (1000-(t))) / 1000 + ((end_val) * ((t))) /1000)
void ram (void)
{
char test[512]; /* scratch space */
o_init (test, sizeof(test));
int frame_dir = 1;
int inpt;
o_set_shader (my_gray, NULL);
int x;
int y;
int angle;
int scale;
int velocity = 0;
frame_no=0;
while ((inpt = getInputRaw()) != BTN_ENTER)
{
int t;
o_identity (); /* reset tranforms */
o_set_gray (0);
o_rectangle (0,0,RESX, RESY); /* fill background with black */
o_fill (); /* fill with 50% gray */
if (frame_no < 800)
{
o_set_gray (250);
o_rectangle (0,RESY-7,RESX, 10); /* fill background with black */
o_fill (); /* fill with 50% gray */
}
if (frame_no < 100)
{
t = frame_no * 1000 / 100;
x = ANIM(-60 * 10, 100 * 10);
y = RESY/2 * 10;
angle = ANIM(500, 300);
scale = ANIM(1200, 700);
}
else if (frame_no < 300)
{
t = (frame_no - 100) * 1000 / 200;
x = ANIM(100 * 10, 10 * RESX/2);
y = ANIM((RESY/2) * 10, (RESY/2 - 10) * 10);
angle = ANIM(300, 0);
scale = ANIM(700, 300);
}
else if (frame_no < 600)
{
t = (frame_no - 300) * 1000 / 300;
x = RESX/2 * 10;
y = ANIM((RESY/2-10) * 10, (RESY-14) * 10);
angle = 0;
scale = 300;
}
else
{
/* flying time */
if (inpt == BTN_UP)
{
velocity ++;
}
else if (inpt == BTN_DOWN)
{
velocity --;
}
else if (inpt == BTN_LEFT)
{
angle -= 5;
}
else if (inpt == BTN_RIGHT)
{
angle += 5;
}
if (velocity > 10)
velocity = 10;
if (velocity < -10)
velocity = -10;
{
int c = o_cos ((angle - 900) * 4 * 8192 / 3600) / 4;
int s = o_sin ((angle - 900) * 4 * 8192 / 3600) / 4;
x += (c / 100) * velocity / 10;
y += (s / 100) * velocity / 10;
}
y++;
if (y > (RESY-14) * 10)
y = (RESY-14) * 10;
}
draw_rakett (x, y, scale, angle);
frame_no += frame_dir;
lcdDisplay();
}
}
static int my_gray (int x, int y, void *data)
{
int value = (int)(data);
switch (value)
{
case 0: /* 0.0 */
return 0;
case 1: /* 0.16 */
return (x%3==0) ? (y %2)? 0:0:
(x%3==1) ? (y %2)? 0:0:
(y %2)? 0:1;
case 2: /* 0.25 */
switch (frame_no % 4) {
case 0:
return (x%2) ? (y %2)? 1:0:
(y %2)? 0:0;
case 1:
return (x%2) ? (y %2)? 0:1:
(y %2)? 0:0;
case 2:
return (x%2) ? (y %2)? 0:0:
(y %2)? 0:1;
case 3:
return (x%2) ? (y %2)? 0:0:
(y %2)? 1:0;
}
case 3: /* 0.33 */
return (x%3==0) ? (y %2)? 1:0:
(x%3==1) ? (y %2)? 0:0:
(y %2)? 0:1;
case 4: /* 0.50 */
if (frame_no %2)
return (x%2==0) ? (y %2)? 1:0:
(y %2)? 0:1;
else
return (x%2==0) ? (y %2)? 0:1:
(y %2)? 1:0;
case 5: /* 0.66 */
return (x%3==0) ? (y %2)? 0:1:
(x%3==1) ? (y %2)? 1:1:
(y %2)? 1:0;
case 6: /* 0.75 */
return (x%2) ? (y %2)? 1:0:
(y %2)? 1:1;
case 7: /* 0.85 */
return (x%3==0) ? (y %2)? 1:1:
(x%3==1) ? (y %2)? 1:0:
(y %2)? 1:1;
case 8: /* 1.0 */
return 1;
default: // return ((char)(rnd1())) < value;
/* XXX: use a faster "random" source
for this fallback */
break;
}
return 0;
}
/* This is a very simple vector drawing of heart of gold encoded in a
* string (search and replace regexp-fu on an SVG made in inkscape was
* used to create the strings)
*
* to reduce size, all coordinates are encoded as bytes, 'g'ray values
* are in the range 0-100.
*/
static signed char rakett[] = {
' ',
'm',38,6,
'c',38,6,36,13,36,15,
'c',24,22,23,26,21,32,'c',19,41,23,61,23,61,'c',15,73,14,95,17,110,'l',26,109,'c',26,102,26,87,30,83,'c',30,83,30,88,30,95,'c',31,103,31,108,31,108,'l',36,108,'c',36,108,35,98,36,91,'c',37,83,38,80,38,80,'c',41,79,43,80,47,79,'c',56,85,56,89,58,99,'c',58,103,58,108,58,108,'l',68,108,'c',67,89,69,73,54,58,'c',54,58,56,41,53,31,'c',50,21,40,15,40,15,'l',38,6,'z','g',100,'f','g',100,'s',
' ',
'm',33,20,'c',31,20,29,21,27,22,'c',25,24,23,27,22,29,'c',20,35,21,38,21,38,'c',26,38,29,36,34,33,'c',38,31,42,24,34,21,'c',34,21,33,20,33,20,'z','g', 50,'f','.'
};
static const signed char * o_process_op (const signed char *g)
{
switch (*g++) {
case ' ': o_path_new (); break;
/* all of these path commands are directly in integer coordinates */
case 'm':
o_move_to (g[0], g[1]); g += 2;
break;
case 'l': o_line_to (g[0], g[1]); g += 2; break;
case 'c': o_curve_to (g[0], g[1], g[2], g[3], g[4], g[5]); g += 6; break;
case 'z': o_close (); break;
case 'g': o_set_gray (g[0]*10); g ++; break;
case 'f': o_fill (); break;
case 's': break;
//case 's': o_stroke (); break;
/* 1 = 1 10 = 10 100 = 100 */
#if 0
case '!': o_identity (); break;
case 'T': o_translate (g[0] * 100, g[1] * 100); g+=2; break;
/* 1 = 0.01 10 = 0.1 50 = 0.5 100 = 10x */
case 'S': o_scale (g[0] * 10, g[1] * 10); g+=2; break;
/* -128 = -360 64 = 180 128 = 360 */
case 'R': o_rotate ((g[0] * 3600)/127); g+=1; break;
#endif
default:
case '\0':
case '.': /* end */
return NULL;
}
return g;
}
static void
orender (const signed char *g)
{
for (; g; g = o_process_op (g));
}
void o_rectangle (int x0, int y0, int width, int height)
{
o_path_new ();
o_move_to (x0, y0);
o_line_to (x0 + width, y0);
o_line_to (x0 + width, y0+height);
o_line_to (x0, y0+height);
o_close ();
}
static int o_sin(int x)
{
#define qN 13
#define qA 12
#define qP 15
#define qR (2*qN-qP)
#define qS (qN+qP+1-qA)
x= x<<(30-qN); // shift to full s32 range (Q13->Q30)
if( (x^(x<<1)) < 0) // test for quadrant 1 or 2
x= (1<<31) - x;
x= x>>(30-qN);
return (x * ( (3<<qP) - (x*x>>qR) ) >> qS );
}
static inline int o_cos(int x)
{
return o_sin(x + 8192);
}
static void draw_rakett (int x, int y, int scale, int angle)
{
/* directly including the matrices used to build up the transform, the fudging factors
depend on internal values of o to add up properly */
OMatrix mtranslate = {{{O_FIXED,0},
{0,O_FIXED},
{x * 100 * SPP * O_FIXED / 1000, y * 100 * SPP * O_FIXED / 1000}}};
int c = o_cos (angle * 4 * 8192 / 3600) / 4;
int s = o_sin (angle * 4 * 8192 / 3600) / 4;
OMatrix mrotate = {{{c,s},
{-s,c},
{0, 0}}};
OMatrix mscale = {{{scale * O_FIXED / 1000, 0},
{0,scale * O_FIXED / 1000},
{0,0}}};
OMatrix mtranslate2 = {{{O_FIXED,0},
{0,O_FIXED},
{-37000 * SPP * O_FIXED / 1000, -60000 * SPP * O_FIXED / 1000}}};
o_transform (&mtranslate, 1); /* passing 1 as second arg sets the transform to this */
o_transform (&mrotate, 0); /* passing 0 adds this transformaiton */
o_transform (&mscale, 0); /* again (it is multiplying the matrices internally) */
o_transform (&mtranslate2, 0); /* the final translate (first actually) sets the local origin. */
orender (rakett); /* render the rocket data */
}