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/*
* Project: S.Ha.R.K.
*
* Coordinators: Giorgio Buttazzo <giorgio@sssup.it>
*
* ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
*
* http://www.sssup.it
* http://retis.sssup.it
* http://shark.sssup.it
*/
#include "asteroid.h"
int nshot
; /* number of shot active */
int astro_x
, astro_y
; /* astro position */
int astro_grad
; /* astro angolar position */
PID pid_TR
, pid_TL
; /* pid of turn tasks */
int astro_vel
; /* astro speed */
PID pid_SU
, pid_SD
; /* pid of acc tasks */
PID pid_SZ
, pid_FL
; /* pid of acc tasks */
int freez_astro
; /* turn of pad*/
int kill_shot
;
rock_ini rock_new
;
extern volatile int shark_running
;
TASK shot
(int i
)
{
int x
, y
; /* shot graphic position */
int ox
, oy
; /* shot old position */
int x0
, y0
; /* shot initial position */
float vx
, vy
; /* shot speed */
float ty
, tx
;
float dt
;
float a_rad
;
int a_vel
;
int rx
, ry
, rr
;
PID rp
;
sem_wait
(&mx_xy
);
y
= oy
= y0
= astro_y
;
x
= ox
= x0
= astro_x
;
sem_post
(&mx_xy
);
sem_wait
(&mx_pos
);
a_rad
= astro_grad
* PI
/ 180.
;
sem_post
(&mx_pos
);
sem_wait
(&mx_vel
);
a_vel
= astro_vel
;
sem_post
(&mx_vel
);
sem_wait
(&mx_mat
);
vx
= - (SHOT_VEL
+ a_vel
) * sin(a_rad
);
vy
= - (SHOT_VEL
+ a_vel
) * cos(a_rad
);
sem_post
(&mx_mat
);
tx
= 0;
ty
= 0;
dt
= ((float)SHOT_PERIOD
)/100000;
while (1) {
y
= y0
+ vy
* ty
;
x
= x0
+ vx
* tx
;
sem_wait
(&mx_grf
);
grx_disc
(ox
, oy
, SHOT_RADIUS
, RGB_BLACK
);
sem_post
(&mx_grf
);
ox
= x
;
oy
= y
;
if ((kill_shot
)||(crash
)||(y
< GB_YMIN
+SHOT_RADIUS
)||(x
< GB_XMIN
+SHOT_RADIUS
)||(x
> GB_XMAX
-SHOT_RADIUS
)||(y
> GB_YMAX
-SHOT_RADIUS
)){
nshot
--;
return 0;
}
for ( i
=0; i
<ROCK_NMAX
; i
++ ) {
sem_wait
(&mx_rk
);
rp
= rocks
[i
].
pid;
rx
= rocks
[i
].
x;
ry
= rocks
[i
].
y;
rr
= rocks
[i
].
r;
sem_post
(&mx_rk
);
if ((rp
!=NIL
) && (dist_xy
(x
, y
, rx
, ry
) < (SHOT_RADIUS
+rr
))) {
draw_rock
(rx
, ry
, rr
, RGB_BLACK
);
if (rr
== ROCK_RADIUS_I
) {
sem_wait
(&mx_rk
);
rocks
[i
].
r = ROCK_RADIUS_S
;
sem_post
(&mx_rk
);
sem_wait
(&mx_rn
);
rock_new.
r = ROCK_RADIUS_S
;
rock_new.
x = rx
;
rock_new.
y = ry
;
rock_new.
i = 0;
sem_post
(&mx_rn
);
sem_wait
(&mx_st_scr
);
score
+= SCORE_GOT
;
sem_post
(&mx_st_scr
);
} else {
task_kill
(rp
);
sem_wait
(&mx_rk
);
rocks
[i
].
pid = NIL
;
sem_post
(&mx_rk
);
nrock
--;
sem_wait
(&mx_st_scr
);
score
+= 2*SCORE_GOT
;
sem_post
(&mx_st_scr
);
}
sem_wait
(&mx_st_nrg
);
energy
+= ENERGY_GOT
;
sem_post
(&mx_st_nrg
);
sem_wait
(&mx_st_kil
);
enemy
++;
sem_post
(&mx_st_kil
);
nshot
--;
return 0;
}
}
sem_wait
(&mx_grf
);
grx_disc
(ox
, oy
, SHOT_RADIUS
, RGB_RED
);
sem_post
(&mx_grf
);
ty
+= dt
;
tx
+= dt
;
task_endcycle
();
}
}
TASK astro
()
{
float astro_rad
;
int ox
, oy
;
float s
, c
;
//leggo posizione
sem_wait
(&mx_pos
);
astro_rad
= astro_grad
* PI
/ 180.
;
sem_post
(&mx_pos
);
sem_wait
(&mx_mat
);
s
= -sin(astro_rad
);
c
= -cos(astro_rad
);
sem_post
(&mx_mat
);
sem_wait
(&mx_xy
);
ox
= astro_x
;
oy
= astro_y
;
sem_post
(&mx_xy
);
while (1) {
sem_wait
(&mx_grf
);
//DRAW SHADOW ASTRO
grx_line
(ox
+ 15.
*s
, oy
+ 15.
*c
, ox
- 5.
*c
- 9.
*s
, oy
+ 5.
*s
- 9.
*c
, RGB_BLACK
);
grx_line
(ox
+ 15.
*s
, oy
+ 15.
*c
, ox
+ 5.
*c
- 9.
*s
, oy
- 5.
*s
- 9.
*c
, RGB_BLACK
);
grx_line
(ox
, oy
, ox
- 12.
*c
- 9.
*s
, oy
+ 12.
*s
- 9.
*c
, RGB_BLACK
);
grx_line
(ox
, oy
, ox
+ 12.
*c
- 9.
*s
, oy
- 12.
*s
- 9.
*c
, RGB_BLACK
);
grx_line
(ox
- 12.
*c
- 9.
*s
, oy
+ 12.
*s
- 9.
*c
, ox
+ 12.
*c
- 9.
*s
, oy
- 12.
*s
- 9.
*c
, RGB_BLACK
);
sem_post
(&mx_grf
);
sem_wait
(&mx_pos
);
astro_rad
= astro_grad
* PI
/ 180.
;
sem_post
(&mx_pos
);
sem_wait
(&mx_mat
);
s
= -sin(astro_rad
);
c
= -cos(astro_rad
);
sem_post
(&mx_mat
);
sem_wait
(&mx_xy
);
ox
= astro_x
;
oy
= astro_y
;
sem_post
(&mx_xy
);
sem_wait
(&mx_grf
);
//DRAW ASTRO
grx_line
(ox
+ 15.
*s
, oy
+ 15.
*c
, ox
- 5.
*c
- 9.
*s
, oy
+ 5.
*s
- 9.
*c
, RGB_WHITE
);
grx_line
(ox
+ 15.
*s
, oy
+ 15.
*c
, ox
+ 5.
*c
- 9.
*s
, oy
- 5.
*s
- 9.
*c
, RGB_WHITE
);
grx_line
(ox
, oy
, ox
- 12.
*c
- 9.
*s
, oy
+ 12.
*s
- 9.
*c
, RGB_WHITE
);
grx_line
(ox
, oy
, ox
+ 12.
*c
- 9.
*s
, oy
- 12.
*s
- 9.
*c
, RGB_WHITE
);
grx_line
(ox
- 12.
*c
- 9.
*s
, oy
+ 12.
*s
- 9.
*c
, ox
+ 12.
*c
- 9.
*s
, oy
- 12.
*s
- 9.
*c
, RGB_WHITE
);
sem_post
(&mx_grf
);
/* {
int xxx;
for (xxx=0; xxx<10000; xxx++);
}*/
task_endcycle
();
}
}
TASK look
()
{
while (1) {
if (crash
) {
reset_rock
();
reset_astro
();
if (nrock
==0) {
reset_game
();
crash
= 0;
}
}
task_endcycle
();
}
}
TASK turn
(int i
)
{
while (1) {
sem_wait
(&mx_pos
);
if (i
==0)
astro_grad
+= 180;
else {
astro_grad
+= i
;
}
if (astro_grad
< -180) astro_grad
+= 360;
if (astro_grad
> 180) astro_grad
-= 360;
if (astro_grad
< -ASTRO_MAX_GRAD
) astro_grad
= -ASTRO_MAX_GRAD
;
if (astro_grad
> ASTRO_MAX_GRAD
) astro_grad
= ASTRO_MAX_GRAD
;
sem_post
(&mx_pos
);
task_endcycle
();
}
}
TASK speed
(int i
)
{
while (1) {
sem_wait
(&mx_vel
);
if (i
==0)
astro_vel
= 0;
else {
astro_vel
+= i
;
if (astro_vel
< -ASTRO_MAX_VEL
) astro_vel
= -ASTRO_MAX_VEL
;
if (astro_vel
> ASTRO_MAX_VEL
) astro_vel
= ASTRO_MAX_VEL
;
}
sem_post
(&mx_vel
);
task_endcycle
();
}
}
TASK move
()
{
int dv
, x
, y
;
float drad
;
drad
= x
= y
= 0;
while (1) {
#ifdef ASTRO_MOVE
sem_wait
(&mx_pos
);
drad
= astro_grad
* PI
/ 180.
;
sem_post
(&mx_pos
);
#endif
sem_wait
(&mx_vel
);
dv
= astro_vel
;
sem_post
(&mx_vel
);
sem_wait
(&mx_xy
);
x
= astro_x
;
y
= astro_y
;
sem_post
(&mx_xy
);
#ifdef ASTRO_MOVE
x
-= dv
* sin(drad
);
y
-= dv
* cos(drad
);
if (x
< GB_XMIN
+ ASTRO_RADIUS
) x
= GB_XMAX
- ASTRO_RADIUS
;
if (x
> GB_XMAX
- ASTRO_RADIUS
) x
= GB_XMIN
+ ASTRO_RADIUS
;
if (y
< GB_YMIN
+ ASTRO_RADIUS
) y
= GB_YMAX
- ASTRO_RADIUS
;
if (y
> GB_YMAX
- ASTRO_RADIUS
) y
= GB_YMIN
+ ASTRO_RADIUS
;
#else
x
+= dv
;
if (x
< GB_XMIN
+ 2*ASTRO_RADIUS
) {
x
= GB_XMIN
+ 2*ASTRO_RADIUS
;
sem_wait
(&mx_vel
);
astro_vel
= - astro_vel
- ASTRO_VEL_INC
;
sem_post
(&mx_vel
);
}
if (x
> GB_XMAX
- 2*ASTRO_RADIUS
) {
x
= GB_XMAX
- 2*ASTRO_RADIUS
;
sem_wait
(&mx_vel
);
astro_vel
= - astro_vel
+ ASTRO_VEL_INC
;
sem_post
(&mx_vel
);
}
#endif
sem_wait
(&mx_xy
);
astro_x
= x
;
astro_y
= y
;
sem_post
(&mx_xy
);
task_endcycle
();
}
}
void pad
(KEY_EVT
*k
)
{
if (freez_astro
) return;
if (k
->scan
== KEY_O
) task_activate
(pid_TL
);
if (k
->scan
== KEY_P
) task_activate
(pid_TR
);
if (k
->scan
== KEY_S
) task_activate
(pid_SZ
);
if (k
->scan
== KEY_Z
) task_activate
(pid_SD
);
#ifdef ASTRO_MOVE
if (k
->scan
== KEY_A
) task_activate
(pid_SU
);
if (k
->scan
== KEY_F
) task_activate
(pid_FL
);
#else
if (k
->scan
== KEY_X
) task_activate
(pid_SU
);
#endif
}
void new_shot
(KEY_EVT
*k
)
{
SOFT_TASK_MODEL mp
;
PID pid
;
if ((nshot
>= SHOT_NMAX
)||(freez_astro
)||(kill_shot
)||(crash
)) return;
soft_task_default_model
(mp
);
soft_task_def_ctrl_jet
(mp
);
soft_task_def_arg
(mp
, (void *)nshot
);
soft_task_def_group
(mp
, SHOT_GROUP
);
soft_task_def_met
(mp
, SHOT_WCET
);
soft_task_def_period
(mp
,SHOT_PERIOD
);
soft_task_def_usemath
(mp
);
pid
= task_create
("Shot", shot
, &mp
, NULL
);
if (pid
!= NIL
) {
task_activate
(pid
);
nshot
++;
sem_wait
(&mx_st_nrg
);
energy
-= ENERGY_SHOT
;
sem_post
(&mx_st_nrg
);
}
}
void start_astro
()
{
freez_astro
= 0;
kill_shot
= 0;
}
void reset_astro
()
{
freez_astro
= 1;
sem_wait
(&mx_xy
);
astro_x
= ASTRO_X
;
astro_y
= ASTRO_Y
;
sem_post
(&mx_xy
);
sem_wait
(&mx_pos
);
astro_grad
= 0;
sem_post
(&mx_pos
);
sem_wait
(&mx_vel
);
astro_vel
= 0;
sem_post
(&mx_vel
);
kill_shot
= 1;
}
void create_astro_task
()
{
HARD_TASK_MODEL mp
;
SOFT_TASK_MODEL ms
;
PID pid
;
int incr
;
soft_task_default_model
(ms
);
soft_task_def_ctrl_jet
(ms
);
soft_task_def_arg
(ms
, (void *)nshot
);
soft_task_def_met
(ms
, ASTRO_WCET
);
soft_task_def_period
(ms
,ASTRO_PERIOD
);
soft_task_def_usemath
(ms
);
pid
= task_create
("Astro", astro
, &ms
, NULL
);
if (pid
== NIL
) {
sys_shutdown_message
("Could not create task <astro>\n");
shark_running
= 0;
return;
} else
task_activate
(pid
);
hard_task_default_model
(mp
);
hard_task_def_ctrl_jet
(mp
);
hard_task_def_wcet
(mp
,LOOK_WCET
);
hard_task_def_mit
(mp
, LOOK_PERIOD
);
hard_task_def_usemath
(mp
);
pid
= task_create
("Taken", look
, &mp
, NULL
);
if (pid
== NIL
) {
sys_shutdown_message
("Could not create task <Taken>\n");
shark_running
= 0;
return;
} else
task_activate
(pid
);
incr
= ASTRO_GRAD_INC
;
hard_task_default_model
(mp
);
hard_task_def_ctrl_jet
(mp
);
hard_task_def_arg
(mp
, (void *)incr
);
hard_task_def_wcet
(mp
,ASTRO_WCET
);
hard_task_def_mit
(mp
, ASTRO_MOVE_PERIOD
);
hard_task_def_aperiodic
(mp
);
hard_task_def_usemath
(mp
);
pid_TL
= task_create
("TurnLeft", turn
, &mp
, NULL
);
if (pid_TL
== NIL
) {
sys_shutdown_message
("Could not create task <Turn L>\n");
shark_running
= 0;
return;
}
incr
= - ASTRO_GRAD_INC
;
hard_task_default_model
(mp
);
hard_task_def_ctrl_jet
(mp
);
hard_task_def_arg
(mp
, (void *)incr
);
hard_task_def_wcet
(mp
,ASTRO_WCET
);
hard_task_def_mit
(mp
, ASTRO_MOVE_PERIOD
);
hard_task_def_aperiodic
(mp
);
hard_task_def_usemath
(mp
);
pid_TR
= task_create
("TurnRight", turn
, &mp
, NULL
);
if (pid_TR
== NIL
) {
sys_shutdown_message
("Could not create task <Turn R>\n");
shark_running
= 0;
return;
}
incr
= ASTRO_VEL_INC
;
hard_task_default_model
(mp
);
hard_task_def_ctrl_jet
(mp
);
hard_task_def_arg
(mp
, (void *)incr
);
hard_task_def_wcet
(mp
,ASTRO_WCET
);
hard_task_def_mit
(mp
, ASTRO_PERIOD
);
hard_task_def_aperiodic
(mp
);
hard_task_def_usemath
(mp
);
pid_SU
= task_create
("SpeedUP", speed
, &mp
, NULL
);
if (pid_SU
== NIL
) {
sys_shutdown_message
("Could not create task <Speed UP>\n");
shark_running
= 0;
return;
}
incr
= - ASTRO_VEL_INC
;
hard_task_default_model
(mp
);
hard_task_def_ctrl_jet
(mp
);
hard_task_def_arg
(mp
, (void *)incr
);
hard_task_def_wcet
(mp
,ASTRO_WCET
);
hard_task_def_mit
(mp
, ASTRO_PERIOD
);
hard_task_def_aperiodic
(mp
);
hard_task_def_usemath
(mp
);
pid_SD
= task_create
("SpeedDOWN", speed
, &mp
, NULL
);
if (pid_SD
== NIL
) {
sys_shutdown_message
("Could not create task <Speed DOWN>\n");
shark_running
= 0;
return;
}
incr
= 0;
hard_task_default_model
(mp
);
hard_task_def_ctrl_jet
(mp
);
hard_task_def_arg
(mp
, (void *)incr
);
hard_task_def_wcet
(mp
,ASTRO_WCET
);
hard_task_def_mit
(mp
, ASTRO_PERIOD
);
hard_task_def_aperiodic
(mp
);
hard_task_def_usemath
(mp
);
pid_SZ
= task_create
("SpeedZERO", speed
, &mp
, NULL
);
if (pid_SZ
== NIL
) {
sys_shutdown_message
("Could not create task <Speed ZERO>\n");
shark_running
= 0;
return;
}
hard_task_default_model
(mp
);
hard_task_def_ctrl_jet
(mp
);
hard_task_def_wcet
(mp
,ASTRO_WCET
);
hard_task_def_mit
(mp
, 6*ASTRO_PERIOD
);
hard_task_def_usemath
(mp
);
pid
= task_create
("MoveAstro", move
, &mp
, NULL
);
if (pid
== NIL
) {
sys_shutdown_message
("Could not create task <MoveAstro>\n");
shark_running
= 0;
return;
} else
task_activate
(pid
);
#ifdef ASTRO_MOVE
incr
= 0;
hard_task_default_model
(mp
);
hard_task_def_ctrl_jet
(mp
);
hard_task_def_arg
(mp
, (void *)incr
);
hard_task_def_wcet
(mp
,ASTRO_WCET
);
hard_task_def_mit
(mp
, ASTRO_PERIOD
);
hard_task_def_aperiodic
(mp
);
hard_task_def_usemath
(mp
);
pid_FL
= task_create
("FlipAstro", turn
, &mp
, NULL
);
if (pid_FL
== NIL
) {
sys_shutdown_message
("Could not create task <Flip Astro>\n");
shark_running
= 0;
return;
}
#endif
}
void frame_astro
()
{
grx_text
("Game", 10, 45, RGB_BLUE
, RGB_BLACK
);
grx_line
(GB_XMIN
-2,55,GB_XMAX
+2,55,RGB_RED
);
grx_rect
(GB_XMIN
-3, GB_YMIN
-3, GB_XMAX
+3, GB_YMAX
+3, RGB_GREEN
);
#ifndef ASTRO_MOVE
grx_rect
(GB_XMIN
-1, GB_YMAX
-1, GB_XMAX
+1, GB_YMAX
+1, RGB_CYAN
);
#endif
}
void init_astro
()
{
KEY_EVT k
;
crash
= 0;
freez_astro
= 1;
kill_shot
= 1;
astro_vel
= 0;
astro_grad
= 0;
astro_x
= ASTRO_X
;
astro_y
= ASTRO_Y
;
create_astro_task
();
k.
flag = 0;
k.
scan = KEY_SPC
;
k.
ascii = ' ';
k.
status = KEY_PRESSED
;
keyb_hook
(k
,new_shot
,FALSE
);
k.
flag = 0;
k.
scan = KEY_O
;
k.
ascii = 'o';
k.
status = KEY_PRESSED
;
keyb_hook
(k
,pad
,FALSE
);
k.
flag = 0;
k.
scan = KEY_P
;
k.
ascii = 'p';
k.
status = KEY_PRESSED
;
keyb_hook
(k
,pad
,FALSE
);
k.
flag = 0;
k.
scan = KEY_S
;
k.
ascii = 's';
k.
status = KEY_PRESSED
;
keyb_hook
(k
,pad
,FALSE
);
k.
flag = 0;
k.
scan = KEY_Z
;
k.
ascii = 'z';
k.
status = KEY_PRESSED
;
keyb_hook
(k
,pad
,FALSE
);
#ifdef ASTRO_MOVE
k.
flag = 0;
k.
scan = KEY_A
;
k.
ascii = 'a';
k.
status = KEY_PRESSED
;
keyb_hook
(k
,pad
,FALSE
);
k.
flag = 0;
k.
scan = KEY_F
;
k.
ascii = 'f';
k.
status = KEY_PRESSED
;
keyb_hook
(k
,pad
,FALSE
);
#else
k.
flag = 0;
k.
scan = KEY_X
;
k.
ascii = 'x';
k.
status = KEY_PRESSED
;
keyb_hook
(k
,pad
,FALSE
);
#endif
}