/***********************************************************
* Rocks'n'Diamonds -- McDuffin Strikes Back! *
*----------------------------------------------------------*
-* ©1995 Artsoft Development *
-* Holger Schemel *
-* 33659 Bielefeld-Senne *
-* Telefon: (0521) 493245 *
-* eMail: aeglos@valinor.owl.de *
-* aeglos@uni-paderborn.de *
-* q99492@pbhrzx.uni-paderborn.de *
+* (c) 1995-98 Artsoft Entertainment *
+* Holger Schemel *
+* Oststrasse 11a *
+* 33604 Bielefeld *
+* phone: ++49 +521 290471 *
+* email: aeglos@valinor.owl.de *
*----------------------------------------------------------*
* misc.c *
***********************************************************/
#include "misc.h"
#include "tools.h"
#include "sound.h"
+#include "random.h"
+
#include <pwd.h>
#include <unistd.h>
#include <time.h>
#include <sys/param.h>
#include <sys/types.h>
-void microsleep(unsigned long usec)
-{
- struct timeval delay;
-
- delay.tv_sec = usec / 1000000;
- delay.tv_usec = usec % 1000000;
-
- if (select(0,NULL,NULL,NULL,&delay)!=0)
- fprintf(stderr,"%s: in function microsleep: select failed!\n",
- progname);
-}
-
-long mainCounter(int mode)
+static unsigned long mainCounter(int mode)
{
static struct timeval base_time = { 0, 0 };
struct timeval current_time;
- long counter_ms;
+ unsigned long counter_ms;
- gettimeofday(¤t_time,NULL);
- if (mode==0 || current_time.tv_sec<base_time.tv_sec)
+ gettimeofday(¤t_time, NULL);
+
+ if (mode == INIT_COUNTER || current_time.tv_sec < base_time.tv_sec)
base_time = current_time;
- counter_ms = (current_time.tv_sec - base_time.tv_sec)*1000
- + (current_time.tv_usec - base_time.tv_usec)/1000;
+ counter_ms = (current_time.tv_sec - base_time.tv_sec) * 1000
+ + (current_time.tv_usec - base_time.tv_usec) / 1000;
- if (mode==1)
- return(counter_ms/10); /* return 1/100 secs since last init */
- else
- return(counter_ms); /* return 1/1000 secs since last init */
+ return counter_ms; /* return milliseconds since last init */
}
-void InitCounter() /* set counter back to zero */
+void InitCounter() /* set counter back to zero */
{
- mainCounter(0);
+ mainCounter(INIT_COUNTER);
}
-long Counter() /* returns 1/100 secs since last call of InitCounter() */
+unsigned long Counter() /* get milliseconds since last call of InitCounter() */
{
- return(mainCounter(1));
+ return(mainCounter(READ_COUNTER));
}
-long Counter2() /* returns 1/1000 secs since last call of InitCounter() */
+static void sleep_milliseconds(unsigned long milliseconds_delay)
{
- return(mainCounter(2));
-}
+ if (milliseconds_delay < 5)
+ {
+ /* we want to wait only a few ms -- if we assume that we have a
+ kernel timer resolution of 10 ms, we would wait far to long;
+ therefore it's better to do a short interval of busy waiting
+ to get our sleeping time more accurate */
-void WaitCounter(long value) /* wait for counter to reach value */
-{
- long wait;
+ unsigned long base_counter = Counter(), actual_counter = Counter();
- while((wait=value-Counter())>0)
- microsleep(wait*10000);
+ while (actual_counter < base_counter + milliseconds_delay &&
+ actual_counter >= base_counter)
+ actual_counter = Counter();
+ }
+ else
+ {
+ struct timeval delay;
+
+ delay.tv_sec = milliseconds_delay / 1000;
+ delay.tv_usec = 1000 * (milliseconds_delay % 1000);
+
+ if (select(0, NULL, NULL, NULL, &delay) != 0)
+ fprintf(stderr,"%s: in function sleep_milliseconds: select() failed!\n",
+ progname);
+ }
}
-void WaitCounter2(long value) /* wait for counter to reach value */
+void Delay(unsigned long delay) /* Sleep specified number of milliseconds */
{
- long wait;
-
- while((wait=value-Counter2())>0)
- microsleep(wait*1000);
+ sleep_milliseconds(delay);
}
-void Delay(long value)
+BOOL FrameReached(unsigned long *frame_counter_var, unsigned long frame_delay)
{
- microsleep(value);
+ unsigned long actual_frame_counter = FrameCounter;
+
+ if (actual_frame_counter < *frame_counter_var+frame_delay &&
+ actual_frame_counter >= *frame_counter_var)
+ return(FALSE);
+
+ *frame_counter_var = actual_frame_counter;
+ return(TRUE);
}
-BOOL DelayReached(long *counter_var, int delay)
+BOOL DelayReached(unsigned long *counter_var, unsigned long delay)
{
- long actual_counter = Counter();
+ unsigned long actual_counter = Counter();
- if (actual_counter>*counter_var+delay || actual_counter<*counter_var)
- {
- *counter_var = actual_counter;
- return(TRUE);
- }
- else
+ if (actual_counter < *counter_var + delay &&
+ actual_counter >= *counter_var)
return(FALSE);
+
+ *counter_var = actual_counter;
+ return(TRUE);
}
-unsigned long be2long(unsigned long *be) /* big-endian -> longword */
+void WaitUntilDelayReached(unsigned long *counter_var, unsigned long delay)
{
- unsigned char *ptr = (unsigned char *)be;
+ unsigned long actual_counter;
- return(ptr[0]<<24 | ptr[1]<<16 | ptr[2]<<8 | ptr[3]);
+ while(1)
+ {
+ actual_counter = Counter();
+
+ if (actual_counter < *counter_var + delay &&
+ actual_counter >= *counter_var)
+ sleep_milliseconds((*counter_var + delay - actual_counter) / 2);
+ else
+ break;
+ }
+
+ *counter_var = actual_counter;
}
char *int2str(int ct, int nr)
return(&str[strlen(str)-nr]);
}
+unsigned int SimpleRND(unsigned int max)
+{
+ static unsigned long root = 654321;
+ struct timeval current_time;
+
+ gettimeofday(¤t_time,NULL);
+ root = root * 4253261 + current_time.tv_sec + current_time.tv_usec;
+ return(root % max);
+}
+
unsigned int RND(unsigned int max)
{
- return(rand() % max);
+ return(random_linux_libc() % max);
}
unsigned int InitRND(long seed)
if (seed==NEW_RANDOMIZE)
{
gettimeofday(¤t_time,NULL);
- srand((unsigned int) current_time.tv_usec);
+ srandom_linux_libc((unsigned int) current_time.tv_usec);
return((unsigned int) current_time.tv_usec);
}
else
{
- srand((unsigned int) seed);
+ srandom_linux_libc((unsigned int) seed);
return((unsigned int) seed);
}
}
return(pwd->pw_name);
}
-void InitAnimation()
+void MarkTileDirty(int x, int y)
{
- HandleAnimation(ANIM_START);
-}
-
-void StopAnimation()
-{
- HandleAnimation(ANIM_STOP);
-}
-
-void DoAnimation()
-{
- HandleAnimation(ANIM_CONTINUE);
-}
+ int xx = redraw_x1 + x;
+ int yy = redraw_y1 + y;
-void HandleAnimation(int mode)
-{
- static long animstart_delay = -1;
- static long animstart_delay_value = 0;
- static BOOL anim_restart = TRUE;
- static BOOL reset_delay = TRUE;
- static int toon_nr = 0;
-
- if (!toons_on || game_status==PLAYING)
- return;
-
- switch(mode)
- {
- case ANIM_START:
- anim_restart = TRUE;
- reset_delay = TRUE;
- return;
- break;
- case ANIM_CONTINUE:
- break;
- case ANIM_STOP:
- redraw_mask |= REDRAW_FIELD;
- BackToFront();
- return;
- break;
- default:
- break;
- }
-
- if (reset_delay)
- {
- animstart_delay = Counter();
- animstart_delay_value = RND(500);
- reset_delay = FALSE;
- }
-
- if (anim_restart)
- {
- if (!DelayReached(&animstart_delay,animstart_delay_value))
- return;
-
- toon_nr = RND(NUM_TOONS);
- }
-
- anim_restart = reset_delay = AnimateToon(toon_nr,anim_restart);
-}
-
-BOOL AnimateToon(int toon_nr, BOOL restart)
-{
- static pos_x = 0, pos_y = 0;
- static delta_x = 0, delta_y = 0;
- static int frame = 0, frame_step = 1;
- static BOOL horiz_move, vert_move;
- static long anim_delay = 0;
- static int anim_delay_value = 0;
- static int width,height;
- static int pad_x,pad_y;
- static int cut_x,cut_y;
- static int src_x, src_y;
- static int dest_x, dest_y;
- static struct AnimInfo toon[NUM_TOONS] =
- {
- DWARF_XSIZE, DWARF_YSIZE,
- DWARF_X, DWARF_Y,
- DWARF_FRAMES,
- DWARF_FPS,
- DWARF_STEPSIZE,
- FALSE,
- ANIMDIR_RIGHT,
- ANIMPOS_DOWN,
-
- DWARF_XSIZE, DWARF_YSIZE,
- DWARF_X, DWARF2_Y,
- DWARF_FRAMES,
- DWARF_FPS,
- DWARF_STEPSIZE,
- FALSE,
- ANIMDIR_LEFT,
- ANIMPOS_DOWN,
-
- JUMPER_XSIZE, JUMPER_YSIZE,
- JUMPER_X, JUMPER_Y,
- JUMPER_FRAMES,
- JUMPER_FPS,
- JUMPER_STEPSIZE,
- FALSE,
- ANIMDIR_LEFT,
- ANIMPOS_DOWN,
-
- CLOWN_XSIZE, CLOWN_YSIZE,
- CLOWN_X, CLOWN_Y,
- CLOWN_FRAMES,
- CLOWN_FPS,
- CLOWN_STEPSIZE,
- FALSE,
- ANIMDIR_UP,
- ANIMPOS_ANY,
-
- BIRD_XSIZE, BIRD_YSIZE,
- BIRD1_X, BIRD1_Y,
- BIRD_FRAMES,
- BIRD_FPS,
- BIRD_STEPSIZE,
- TRUE,
- ANIMDIR_RIGHT,
- ANIMPOS_UPPER,
-
- BIRD_XSIZE, BIRD_YSIZE,
- BIRD2_X, BIRD2_Y,
- BIRD_FRAMES,
- BIRD_FPS,
- BIRD_STEPSIZE,
- TRUE,
- ANIMDIR_LEFT,
- ANIMPOS_UPPER
- };
- struct AnimInfo *anim = &toon[toon_nr];
-
- if (restart)
- {
- horiz_move = (anim->direction & (ANIMDIR_LEFT | ANIMDIR_RIGHT));
- vert_move = (anim->direction & (ANIMDIR_UP | ANIMDIR_DOWN));
- anim_delay_value = 100/anim->frames_per_second;
- frame = 0;
-
- if (horiz_move)
- {
- if (anim->position==ANIMPOS_UP)
- pos_y = 0;
- else if (anim->position==ANIMPOS_DOWN)
- pos_y = FULL_SYSIZE-anim->height;
- else if (anim->position==ANIMPOS_UPPER)
- pos_y = RND((FULL_SYSIZE-anim->height)/2);
- else
- pos_y = RND(FULL_SYSIZE-anim->height);
-
- if (anim->direction==ANIMDIR_RIGHT)
- {
- delta_x = anim->stepsize;
- pos_x = -anim->width+delta_x;
- }
- else
- {
- delta_x = -anim->stepsize;
- pos_x = FULL_SXSIZE+delta_x;
- }
- delta_y = 0;
- }
- else
- {
- if (anim->position==ANIMPOS_LEFT)
- pos_x = 0;
- else if (anim->position==ANIMPOS_RIGHT)
- pos_x = FULL_SXSIZE-anim->width;
- else
- pos_x = RND(FULL_SXSIZE-anim->width);
-
- if (anim->direction==ANIMDIR_DOWN)
- {
- delta_y = anim->stepsize;
- pos_y = -anim->height+delta_y;
- }
- else
- {
- delta_y = -anim->stepsize;
- pos_y = FULL_SYSIZE+delta_y;
- }
- delta_x = 0;
- }
- }
-
- if (pos_x <= -anim->width - anim->stepsize ||
- pos_x >= FULL_SXSIZE + anim->stepsize ||
- pos_y <= -anim->height - anim->stepsize ||
- pos_y >= FULL_SYSIZE + anim->stepsize)
- return(TRUE);
-
- if (!DelayReached(&anim_delay,anim_delay_value))
- {
- if (game_status==HELPSCREEN && !restart)
- DrawAnim(src_x+cut_x,src_y+cut_y, width,height,
- REAL_SX+dest_x,REAL_SY+dest_y, pad_x,pad_y);
-
- return(FALSE);
- }
-
- if (pos_x<-anim->width)
- pos_x = -anim->width;
- else if (pos_x>FULL_SXSIZE)
- pos_x = FULL_SXSIZE;
- if (pos_y<-anim->height)
- pos_y = -anim->height;
- else if (pos_y>FULL_SYSIZE)
- pos_y = FULL_SYSIZE;
-
- pad_x = (horiz_move ? anim->stepsize : 0);
- pad_y = (vert_move ? anim->stepsize : 0);
- src_x = anim->src_x + frame * anim->width;
- src_y = anim->src_y;
- dest_x = pos_x;
- dest_y = pos_y;
- cut_x = cut_y = 0;
- width = anim->width;
- height = anim->height;
-
- if (pos_x<0)
- {
- dest_x = 0;
- width += pos_x;
- cut_x = -pos_x;
- }
- else if (pos_x>FULL_SXSIZE-anim->width)
- width -= (pos_x - (FULL_SXSIZE-anim->width));
-
- if (pos_y<0)
+ if (!redraw[xx][yy])
{
- dest_y = 0;
- height += pos_y;
- cut_y = -pos_y;
+ redraw[xx][yy] = TRUE;
+ redraw_tiles++;
+ redraw_mask |= REDRAW_TILES;
}
- else if (pos_y>FULL_SYSIZE-anim->height)
- height -= (pos_y - (FULL_SYSIZE-anim->height));
-
- DrawAnim(src_x+cut_x,src_y+cut_y, width,height,
- REAL_SX+dest_x,REAL_SY+dest_y, pad_x,pad_y);
-
- pos_x += delta_x;
- pos_y += delta_y;
- frame += frame_step;
-
- if (frame<0 || frame>=anim->frames)
- {
- if (anim->pingpong)
- {
- frame_step *= -1;
- frame = (frame<0 ? 1 : anim->frames-2);
- }
- else
- frame = (frame<0 ? anim->frames-1 : 0);
- }
-
- return(FALSE);
-}
-
-void DrawAnim(int src_x, int src_y, int width, int height,
- int dest_x, int dest_y, int pad_x, int pad_y)
-{
- int buf_x = DOOR_GFX_PAGEX3, buf_y = DOOR_GFX_PAGEY1;
-
-#if 1
- /* special method to avoid flickering interference with BackToFront() */
- XCopyArea(display,backbuffer,pix[PIX_DB_DOOR],gc,dest_x-pad_x,dest_y-pad_y,
- width+2*pad_x,height+2*pad_y, buf_x,buf_y);
- XSetClipOrigin(display,clip_gc[PIX_TOONS],dest_x-src_x,dest_y-src_y);
- XCopyArea(display,pix[PIX_TOONS],backbuffer,clip_gc[PIX_TOONS],
- src_x,src_y, width,height, dest_x,dest_y);
- XCopyArea(display,backbuffer,window,gc, dest_x-pad_x,dest_y-pad_y,
- width+2*pad_x,height+2*pad_y, dest_x-pad_x,dest_y-pad_y);
- BackToFront();
- XCopyArea(display,pix[PIX_DB_DOOR],backbuffer,gc, buf_x,buf_y,
- width+2*pad_x,height+2*pad_y, dest_x-pad_x,dest_y-pad_y);
-#else
- /* normal method, causing flickering interference with BackToFront() */
- XCopyArea(display,backbuffer,pix[PIX_DB_DOOR],gc,dest_x-pad_x,dest_y-pad_y,
- width+2*pad_x,height+2*pad_y, buf_x,buf_y);
- XSetClipOrigin(display,clip_gc[PIX_TOONS],
- buf_x-src_x+pad_x,buf_y-src_y+pad_y);
- XCopyArea(display,pix[PIX_TOONS],pix[PIX_DB_DOOR],clip_gc[PIX_TOONS],
- src_x,src_y, width,height, buf_x+pad_x,buf_y+pad_y);
- XCopyArea(display,pix[PIX_DB_DOOR],window,gc, buf_x,buf_y,
- width+2*pad_x,height+2*pad_y, dest_x-pad_x,dest_y-pad_y);
-#endif
-
- XFlush(display);
}
projects / rocksndiamonds.git / blobdiff