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commandsBlitterObject.cpp
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commandsBlitterObject.cpp
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#include "stdafx.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <vector>
#include <limits.h>
#include <string>
#include <iostream>
#ifdef __amigaos4__
#include <proto/exec.h>
#include <proto/dos.h>
#include <proto/retroMode.h>
#endif
#ifdef __linux__
#include "os/linux/stuff.h"
#include <retromode.h>
#include <retromode_lib.h>
#endif
#include <amosKittens.h>
#include <stack.h>
#include "debug.h"
#include "commandsGfx.h"
#include "commandsBlitterObject.h"
#include "kittyErrors.h"
#include "engine.h"
#include "bank_helper.h"
#include "AmalCompiler.h"
#include "channel.h"
extern int sig_main_vbl;
extern struct globalVar globalVars[];
extern unsigned short last_token;
extern int tokenMode;
extern int tokenlength;
extern int priorityReverse;
// extern int bobUpdateNextWait;
extern struct retroVideo *video;
extern std::vector<struct retroSpriteObject *> bobs;
extern ChannelTableClass *channels;
std::vector<int> collided;
void copyScreenToClear( struct retroScreen *screen, struct retroSpriteClear *clear );
void copyClearToScreen( struct retroSpriteClear *clear, struct retroScreen *screen );
struct retroSpriteObject *getBob(unsigned int id)
{
for (std::vector<struct retroSpriteObject * >::iterator bob=bobs.begin();bob != bobs.end(); ++bob)
{
if ((*bob) -> id == id) return *bob;
}
return NULL;
}
struct retroSpriteObject *getBobOnScreen(unsigned int id,int screen)
{
for (std::vector<struct retroSpriteObject * >::iterator bob=bobs.begin();bob != bobs.end(); ++bob)
{
if ((*bob) -> screen_id != screen ) continue;
if ((*bob) -> id == id) return *bob;
}
return NULL;
}
int getBobX(unsigned int id)
{
for (std::vector<struct retroSpriteObject * >::iterator bob=bobs.begin();bob != bobs.end(); bob++)
{
if ((*bob) -> id == id) return (*bob) -> x;
}
return 0;
}
int getBobY(unsigned int id)
{
for (std::vector<struct retroSpriteObject * >::iterator bob=bobs.begin();bob != bobs.end(); bob++)
{
if ((*bob) -> id == id) return (*bob) -> y;
}
return 0;
}
int getBobImage(unsigned int id)
{
for (std::vector<struct retroSpriteObject * >::iterator bob=bobs.begin();bob != bobs.end(); bob++)
{
if ((*bob) -> id == id) return (*bob) -> image;
}
return 0;
}
void clearBob(struct retroSpriteObject *bob)
{
if (bob->screen_id<0) return;
{
struct retroScreen *screen = instance.screens[bob->screen_id];
struct retroSpriteClear *clear;
if (screen == NULL) return;
clear = &bob -> clear[ screen -> double_buffer_draw_frame ];
if ((clear -> mem)&&(bob->background==0))
{
copyClearToScreen( clear,screen );
}
else
{
if (bob->background>0)
{
retroBAR( screen, screen -> double_buffer_draw_frame, clear -> x, clear -> y, clear->x +clear->w, clear->y+clear->h,bob->background-1);
}
}
}
}
void clearBobs()
{
int n;
int start=0,end=0,dir=0;
switch ( priorityReverse )
{
case 0:
start = bobs.size()-1; end = -1; dir = -1;
break;
case 1:
start = 0; end = bobs.size(); dir = 1;
break;
}
for (n=start;n!=end;n+=dir)
{
clearBob(bobs[n]);
}
}
void clearBobsOnScreen(struct retroScreen *screen)
{
int n;
int start=0,end=0,dir=0;
switch ( priorityReverse )
{
case 0:
start = bobs.size()-1; end = -1; dir = -1;
break;
case 1:
start = 0; end = bobs.size(); dir = 1;
break;
}
for (n=start;n!=end;n+=dir)
{
if (instance.screens[bobs[n] -> screen_id] == screen)
{
clearBob(bobs[n]);
}
}
}
void copyScreenToClear( struct retroScreen *screen, struct retroSpriteClear *clear )
{
bool newX = false;
bool newY = false;
int x,y;
int destX=0;
int destY=0;
int _w = clear -> w;
int _h = clear -> h;
int x0 = clear -> x;
int y0 = clear -> y;
int x1 = x0 + clear -> w;
int y1 = y0 + clear -> h;
unsigned char *dest,*src;
if (y0<0) { destY=-y0; y0=0; newY = true; }
if (x0<0) { destX=-x0; x0=0; newX = true; }
if (y1>screen->realHeight) { y1=screen->realHeight; newY=true; }
if (x1>screen->realWidth) { x1=screen->realWidth; newX=true; }
if (newX) _w = x1-x0;
if (newY) _h = y1-y0;
src = screen -> Memory[ screen -> double_buffer_draw_frame ] + ( screen -> bytesPerRow * y0 ) + x0;
dest = (unsigned char *) ( clear -> mem + (clear -> w * destY) + destX);
for (y=y0; y<y1;y++)
{
for (x=0; x<_w;x++)
{
dest[x]=src[x];
}
dest += clear -> w;
src += screen -> bytesPerRow;
}
}
void copyClearToScreen( struct retroSpriteClear *clear, struct retroScreen *screen )
{
bool newX = false;
bool newY = false;
int x,y;
int destX=0;
int destY=0;
int _w = clear -> w;
int _h = clear -> h;
int x0 = clear -> x;
int y0 = clear -> y;
int x1 = x0 + clear -> w;
int y1 = y0 + clear -> h;
unsigned char *dest,*src;
if (y0<0) { destY=-y0; y0=0; newY = true; }
if (x0<0) { destX=-x0; x0=0; newX = true; }
if (y1>screen->realHeight) { y1=screen->realHeight; newY=true; }
if (x1>screen->realWidth) { x1=screen->realWidth; newX=true; }
if (newX) _w = x1-x0;
if (newY) _h = y1-y0;
dest = screen -> Memory[ screen -> double_buffer_draw_frame ] + ( screen -> bytesPerRow * y0 ) + x0;
src = (unsigned char *) ( clear -> mem + (clear -> w * destY) + destX);
for (y=y0; y<y1;y++)
{
for (x=0; x<_w;x++)
{
dest[x]= src[x];
}
src += clear -> w;
dest += screen -> bytesPerRow;
}
}
void drawBob(struct retroSpriteObject *bob)
{
struct retroScreen *screen = instance.screens[bob->screen_id];
struct retroFrameHeader *frame;
struct retroSpriteClear *clear;
int image, flags;
int size;
if (screen)
{
image = (bob->image & 0x3FFFF) - 1;
flags = bob -> image & 0xC000;
if ( (image >= 0 ) && (image < instance.sprites -> number_of_frames) )
{
frame = &instance.sprites -> frames[ image ];
clear = &bob -> clear[ screen -> double_buffer_draw_frame ];
clear -> x = bob -> x - frame -> XHotSpot;
clear -> y = bob -> y - frame -> YHotSpot;
clear -> w = frame -> width;
clear -> h = frame -> height;
clear -> image = bob -> image;
clear -> drawn = 1;
if (bob-> background == 0)
{
size = clear -> w * clear -> h;
if (clear -> mem)
{
sys_free(clear -> mem);
clear -> mem = NULL;
}
if (size)
{
clear -> mem = (char *) sys_public_alloc_clear(size);
clear -> size = size;
}
if (clear -> mem) copyScreenToClear( screen,clear );
}
retroPasteSpriteObject(
screen,
screen -> double_buffer_draw_frame,
bob,
instance.sprites,
image,
flags);
}
}
}
void drawBobsExcept( struct retroSpriteObject *exceptBob )
{
int n;
int start=0,end=0,dir=0;
if (!instance.sprites) return;
if (!instance.sprites -> frames) return;
switch ( priorityReverse )
{
case 0:
start = 0; end = bobs.size(); dir = 1;
break;
case 1:
start = bobs.size()-1; end = -1; dir = -1;
break;
}
for (n=start;n!=end;n+=dir)
{
if (bobs[n] != exceptBob) drawBob(bobs[n]);
}
}
void drawBobsOnScreenExceptBob( struct retroScreen *screen, struct retroSpriteObject *exceptBob )
{
int n;
struct retroSpriteObject *bob;
int start=0,end=0,dir=0;
if (!instance.sprites) return;
if (!instance.sprites -> frames) return;
switch ( priorityReverse )
{
case 0:
start = 0; end = bobs.size(); dir = 1;
break;
case 1:
start = bobs.size()-1; end = -1; dir = -1;
break;
}
for (n=start;n!=end;n+=dir)
{
bob = bobs[n];
if (instance.screens[bob->screen_id] == screen)
{
if (bob != exceptBob) drawBob(bob);
}
}
}
struct retroSpriteObject *__new_bob__(int id)
{
struct retroSpriteObject *bob = new retroSpriteObject();
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
if (bob)
{
bob -> id = id;
bob -> x = 0;
bob -> y = 0;
bob -> image = 0;
bob -> screen_id = instance.current_screen;
bob -> clear[0].image = 0;
bob -> clear[0].w = 0;
bob -> clear[0].h = 0;
bob -> clear[0].mem = NULL;
bob -> clear[0].size = 0;
bob -> clear[1].image = 0;
bob -> clear[1].w = 0;
bob -> clear[1].h = 0;
bob -> clear[1].mem = NULL;
bob -> clear[1].size = 0;
bob -> sprite = NULL;
bob -> frame = NULL;
bob -> background = 0; // if background color is set, background is not copied.
bob -> plains = 0;
bob -> mask = 0;
bob -> limitXmin = 0;
bob -> limitYmin = 0;
bob -> limitXmax = 0;
bob -> limitYmax = 0;
engine_lock();
bobs.push_back( bob );
engine_unlock();
}
return bob;
}
void freeBobClear( struct retroSpriteObject *bob )
{
if (bob->clear[0].mem) sys_free(bob->clear[0].mem);
bob->clear[0].mem = NULL;
if (bob->clear[1].mem) sys_free(bob->clear[1].mem);
bob->clear[1].mem = NULL;
}
void __erase_bob__(struct retroSpriteObject *bob)
{
unsigned int n;
freeBobClear( bob );
for (n=0;n<bobs.size();n++)
{
if (bobs[n] == bob)
{
delete bob;
bobs[n] = NULL;
bobs.erase(bobs.begin()+n);
return;
}
}
}
void freeScreenBobs(int screen_id)
{
unsigned int n;
for (n=bobs.size();n>0;)
{
n--;
if (bobs[n] -> screen_id == screen_id)
{
__erase_bob__( bobs[n] );
}
}
}
char *_boBob( struct glueCommands *data, int nextToken )
{
int args =__stack - data->stack +1 ;
int num;
int lx,ly,li;
struct retroSpriteObject *bob;
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
switch (args)
{
case 4:
num = getStackNum(__stack - 3 );
bob = getBob(num);
if (!bob) bob = __new_bob__(num);
if (bob)
{
lx =bob -> x;
ly =bob -> y;
li = bob -> image;
stack_get_if_int(__stack - 2 , &(bob->x) );
stack_get_if_int(__stack - 1 , &(bob->y) );
stack_get_if_int(__stack , &(bob->image) );
if (struct retroScreen *screen = instance.screens[bob->screen_id])
{
if ((lx ^ bob -> x) | (ly ^ bob -> y) | ( li ^ bob -> image)) // xor should remove bits not changed, so if this has value its changed.
{
screen -> event_flags |= rs_bob_moved; // normaly, screen is swaped if bob is moved.
}
}
}
break;
default:
setError(22, data->tokenBuffer);
}
popStack(__stack - data->stack );
return NULL;
}
char *boBob(struct nativeCommand *cmd, char *tokenBuffer)
{
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
stackCmdNormal( _boBob, tokenBuffer );
return tokenBuffer;
}
char *_boSetBob( struct glueCommands *data, int nextToken )
{
int args =__stack - data->stack +1 ;
struct retroSpriteObject *bob;
int n;
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
switch (args)
{
case 4: n = getStackNum(__stack-3);
bob = getBob( n );
if (!bob) bob = __new_bob__(n);
if (bob)
{
stack_get_if_int(__stack-2, &bob -> background );
stack_get_if_int(__stack-1, &bob -> plains );
stack_get_if_int(__stack, &bob -> mask );
}
break;
default:
setError(22, data-> tokenBuffer);
break;
}
popStack(__stack - data->stack );
return NULL;
}
char *boSetBob(struct nativeCommand *cmd, char *tokenBuffer)
{
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
stackCmdNormal( _boSetBob, tokenBuffer );
return tokenBuffer;
}
char *_boXBob( struct glueCommands *data, int nextToken )
{
struct retroSpriteObject *bob;
int args =__stack - data->stack +1 ;
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
if (args==1)
{
bob = getBob( getStackNum(__stack) );
if (bob == NULL)
{
setError(23,data->tokenBuffer);
return NULL;
}
setStackNum(bob -> x);
return NULL; // don't need to pop stack.
}
setError(23,data->tokenBuffer);
popStack(__stack - data->stack );
return NULL;
}
char *boXBob(struct nativeCommand *cmd, char *tokenBuffer)
{
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
stackCmdParm( _boXBob, tokenBuffer );
return tokenBuffer;
}
char *_boYBob( struct glueCommands *data, int nextToken )
{
struct retroSpriteObject *bob;
int args =__stack - data->stack +1 ;
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
if (args==1)
{
bob = getBob( getStackNum(__stack) );
if (bob == NULL)
{
setError(23,data->tokenBuffer);
return NULL;
}
setStackNum(bob -> y);
return NULL; // don't need to pop stack.
}
setError(23,data->tokenBuffer);
popStack(__stack - data->stack );
return NULL;
}
char *boYBob(struct nativeCommand *cmd, char *tokenBuffer)
{
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
stackCmdParm( _boYBob, tokenBuffer );
return tokenBuffer;
}
char *_boIBob( struct glueCommands *data, int nextToken )
{
struct retroSpriteObject *bob;
int args =__stack - data->stack +1 ;
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
if (args==1)
{
bob = getBob( getStackNum(__stack) );
if (bob == NULL)
{
setError(23,data->tokenBuffer);
return NULL;
}
setStackNum(bob -> image);
return NULL; // don't need to pop stack.
}
setError(23,data->tokenBuffer);
popStack(__stack - data->stack );
return NULL;
}
char *boIBob(struct nativeCommand *cmd, char *tokenBuffer)
{
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
stackCmdParm( _boIBob, tokenBuffer );
return tokenBuffer;
}
char *_boPasteBob( struct glueCommands *data, int nextToken )
{
int args =__stack - data->stack +1 ;
struct retroScreen *screen = NULL;
int hx=0,hy=0;
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
switch (args)
{
case 3: // past bob x,y,i
screen = instance.screens[instance.current_screen];
if (( screen ) && (instance.sprites))
{
int x = getStackNum(__stack-2 );
int y = getStackNum(__stack-1 );
int image = getStackNum(__stack );
int flags = image & 0xC000;
image &= 0x3FFF;
if ((image) && (instance.sprites)) // PasteBob should not use hotspot, need subtract it.
{
hx=-instance.sprites -> frames[image-1].XHotSpot;
hy=-instance.sprites -> frames[image-1].YHotSpot;
}
switch (screen -> autoback)
{
case 0: retroPasteSprite(screen,screen -> double_buffer_draw_frame,instance.sprites,x-hx,y-hy,image-1,flags, 0, 0 );
break;
default: retroPasteSprite(screen,0,instance.sprites,x-hx,y-hy,image-1,flags, 0, 0 );
if (screen -> Memory[1]) retroPasteSprite(screen,1,instance.sprites,x,y,image-1,flags, 0,0 );
break;
}
}
break;
default:
setError(22,data->tokenBuffer);
}
popStack(__stack - data->stack );
return NULL;
}
char *boPasteBob(struct nativeCommand *cmd, char *tokenBuffer)
{
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
stackCmdNormal( _boPasteBob, tokenBuffer );
setStackNone();
return tokenBuffer;
}
char *_boGetBob( struct glueCommands *data, int nextToken )
{
int args =__stack - data->stack +1 ;
struct retroScreen *screen = NULL;
int screen_nr = 0;
int image = 0;
int x0 = 0;
int y0 = 0;
int x1 = 0;
int y1 = 0;
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
switch (args)
{
case 5: // get bob i,x,y to x2,y2
image = getStackNum(__stack-4 );
x0 = getStackNum(__stack-3 );
y0 = getStackNum(__stack-2 );
x1 = getStackNum(__stack-1 );
y1 = getStackNum(__stack );
screen = instance.screens[instance.current_screen];
break;
case 6: // get bob s,i,x,y to x2,y2
screen_nr = getStackNum(__stack-5 );
image = getStackNum(__stack-4 );
x0 = getStackNum(__stack-3 );
y0 = getStackNum(__stack-2 );
x1 = getStackNum(__stack-1 );
y1 = getStackNum(__stack );
if ((screen_nr > -1) && (screen_nr < 8)) screen = instance.screens[ screen_nr ];
break;
}
if (screen)
{
struct kittyBank *bank1;
if (instance.sprites==NULL)
{
instance.sprites = (struct retroSprite *) sys_public_alloc_clear( sizeof(struct retroSprite) );
bank1 = findBankById(1);
if (!bank1)
{
if (bank1 = reserveAs( bank_type_sprite, 1,0,NULL, NULL))
{
int n;
// we only copy palette if the bob/sprite is new.
struct retroRGB *color = screen->orgPalette;
for (n=0;n<256;n++) instance.sprites -> palette[n] = color[n];
bank1 -> object_ptr = (char *) instance.sprites;
}
}
}
if (instance.sprites)
{
engine_lock();
retroGetSprite(screen,instance.sprites,image-1,x0,y0,x1,y1);
instance.sprites -> frames[image-1].alpha = 1;
retroMakeMask( &instance.sprites -> frames[ image-1 ] );
engine_unlock();
bank1 = findBankById(1);
if (bank1)
{
if (bank1 -> object_ptr == (char *) instance.sprites)
{
bank1 -> length = instance.sprites -> number_of_frames;
}
}
}
}
else setError(22,data->tokenBuffer);
popStack(__stack - data->stack );
return NULL;
}
char *boGetBob(struct nativeCommand *cmd, char *tokenBuffer)
{
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
stackCmdNormal( _boGetBob, tokenBuffer );
return tokenBuffer;
}
char *_boPutBob( struct glueCommands *data, int nextToken )
{
int args =__stack - data->stack +1 ;
int n,flags;
int image;
struct retroScreen *screen;
struct retroSpriteObject *bob;
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
switch (args)
{
case 1: n = getStackNum(__stack );
bob = getBob( n );
flags = bob -> image & 0xC000;
image = bob -> image & 0x3FFF;
screen = instance.screens[instance.current_screen];
if (screen)
{
switch (screen -> autoback)
{
case 0: retroPasteSprite(screen,screen -> double_buffer_draw_frame,instance.sprites,
bob -> x,bob -> y,image -1, flags, bob -> plains , bob -> plains );
break;
default: retroPasteSprite(screen,0,instance.sprites,bob->x,bob->y,image -1, flags, bob->plains , bob -> plains );
if (screen -> Memory[1]) retroPasteSprite(screen,1,instance.sprites,bob->x,bob->y,image -1, flags, bob->plains, bob -> plains );
break;
}
}
break;
default:
setError(22, data -> tokenBuffer);
break;
}
popStack(__stack - data->stack );
return NULL;
}
char *boPutBob(struct nativeCommand *cmd, char *tokenBuffer)
{
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
stackCmdNormal( _boPutBob, tokenBuffer );
return tokenBuffer;
}
char *_boHotSpot( struct glueCommands *data, int nextToken )
{
int args =__stack - data->stack +1 ;
int image;
int p;
int x,y;
bool success = false;
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
if (!instance.sprites)
{
popStack(__stack - data->stack );
setError(36,data->tokenBuffer);
return NULL;
}
printf("sprite -> number_of_frames: %d\n",instance.sprites -> number_of_frames);
switch (args)
{
case 2:
image = getStackNum(__stack-1 )-1;
p = getStackNum(__stack );
if (instance.sprites)
{
if (image < instance.sprites -> number_of_frames)
{
struct retroFrameHeader *frame = &instance.sprites -> frames[image];
if (frame)
{
x = (p >> 4) & 0xF;
y = p & 0xF;
frame -> XHotSpot = (x * frame -> width) >> 1;
frame -> YHotSpot = (y * frame -> height) >> 1;
success = true;
}
}
}
if (success == false) setError( 23, data -> tokenBuffer );
break;
case 3:
image = getStackNum(__stack-2 )-1;
x = getStackNum(__stack-1 );
y = getStackNum(__stack );
if (instance.sprites)
{
if (image < instance.sprites -> number_of_frames)
{
struct retroFrameHeader *frame = &instance.sprites -> frames[image];
if (frame)
{
frame -> XHotSpot = x;
frame -> YHotSpot = y;
success = true;
}
}
}
if (success == false) setError( 23, data -> tokenBuffer );
break;
default:
printf("args: %d\n",args);
setError(22,data->tokenBuffer);
}
popStack(__stack - data->stack );
return NULL;
}
char *boHotSpot(struct nativeCommand *cmd, char *tokenBuffer)
{
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
stackCmdNormal( _boHotSpot, tokenBuffer );
return tokenBuffer;
}
void removeBobLimit( struct retroSpriteObject *bob )
{
if (!bob) return;
bob -> limitXmin = 0;
bob -> limitYmin = 0;
bob -> limitXmax = 0;
bob -> limitYmax = 0;
}
char *_boLimitBob( struct glueCommands *data, int nextToken )
{
int args =__stack - data->stack +1 ;
unsigned int n;
proc_names_printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__);
// NYI(__FUNCTION__);
switch (args)
{
case 1:
if (kittyStack[__stack].type == type_none) // delete all limits from bobs
{
for (n=0;n<bobs.size();n++) removeBobLimit( bobs[n] );
}
else // delete limit from one bob (not supported by Amos Pro)
{
n = getStackNum(__stack);
removeBobLimit( getBob(n) );
}
break;
case 4: // limit bob x0,y0 to x1,y1
{
struct retroSpriteObject *bob;
int y0 = getStackNum(__stack-3);
int x0 = getStackNum(__stack-2);
int x1 = getStackNum(__stack-1);
int y1 = getStackNum(__stack);
for (n=0;n<bobs.size();n++) // 0-63 is a amos the creator limit, not a amos pro limit.
{
if (bob = bobs[n])
{
bob->limitXmin = x0;
bob->limitYmin = y0;
bob->limitXmax = x1;
bob->limitYmax = y1;
}
}
}
break;
case 5: // limit bob <bob>,x0,y0 to x1,y1
{
struct retroSpriteObject *bob;
n = getStackNum(__stack-4);
int y0 = getStackNum(__stack-3);
int x0 = getStackNum(__stack-2);
int x1 = getStackNum(__stack-1);
int y1 = getStackNum(__stack);
if (bob = getBob(n))
{
bob->limitXmin = x0;
bob->limitYmin = y0;
bob->limitXmax = x1;
bob->limitYmax = y1;
}
}
break;
}
popStack(__stack - data->stack );
return NULL;
}