290 lines
8.3 KiB
Plaintext
290 lines
8.3 KiB
Plaintext
#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 */
|
|
}
|