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if(n==VOIDLINK) return 0;
xx=objects[n]->x;
yy=objects[n]->y;
if(!move_to(from,n,x,y)) return 0;
send_message(VOIDLINK,n,MSG_JUMPED,NVALUE(xx),NVALUE(yy),OVALUE(from));
return 1;
}
static int defer_move(Uint32 obj,Uint32 dir,Uint8 plus) {
Object*o;
Object*q;
Uint32 n;
Value v;
if(StackProtection()) Throw("Call stack overflow during movement");
if(obj==VOIDLINK) return 0;
o=objects[obj];
if(o->oflags&(OF_DESTROYED|OF_BIZARRO)) return 0;
dir=resolve_dir(obj,dir);
if(plus) {
if(o->oflags&OF_MOVING) {
if(o->dir==dir) return 1;
v=send_message(VOIDLINK,obj,MSG_CONFLICT,NVALUE(dir),NVALUE(0),NVALUE(0));
if(!v_bool(v)) return 0;
}
o->oflags|=OF_MOVING;
o->dir=dir;
} else {
if(!(o->oflags&OF_MOVING)) return 0;
if(o->dir!=dir) return 0;
o->oflags&=~OF_MOVING;
}
n=playfield[o->x+o->y*64-65];
while(n!=VOIDLINK) {
q=objects[n];
if(!(q->oflags&(OF_DESTROYED|OF_VISUALONLY)) && ((q->height>0 && q->height>=o->climb) || (classes[q->class]->collisionLayers&classes[o->class]->collisionLayers))) {
v=send_message(obj,n,MSG_BLOCKED,NVALUE(o->x),NVALUE(o->y),NVALUE(plus));
if(v.t) Throw("Type mismatch");
if(v.u&1) o->oflags&=~OF_MOVING;
if(v.u&2) break;
}
n=q->up;
}
return plus?(o->oflags&OF_MOVING?1:0):1;
}
static void trace_stack(Uint32 obj) {
Value t2=Pop();
Value t1=Pop();
Value t0=Pop();
Object*o;
if(!main_options['t']) return;
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case OP_LT: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_unsigned_greater(t2,t1)?1:0)); break;
case OP_LT_C: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_signed_greater(t2,t1)?1:0)); break;
case OP_LXOR: StackReq(2,1); t1=Pop(); t2=Pop(); if(v_bool(t1)?!v_bool(t2):v_bool(t2)) Push(NVALUE(1)); else Push(NVALUE(0)); break;
case OP_MANHATTAN: StackReq(1,1); t1=Pop(); i=manhattan(obj,v_object(t1)); Push(NVALUE(i)); break;
case OP_MANHATTAN_C: StackReq(2,1); t2=Pop(); t1=Pop(); i=manhattan(v_object(t1),v_object(t2)); Push(NVALUE(i)); break;
case OP_MARK: StackReq(0,1); Push(UVALUE(0,TY_MARK)); break;
case OP_MAXINVENTORY: StackReq(1,0); t1=Pop(); Numeric(t1); if(ninventory>t1.u) Throw("Inventory overflow"); break;
case OP_MINUSMOVE: StackReq(1,1); t1=Pop(); Numeric(t1); i=defer_move(obj,t1.u,0); Push(NVALUE(i)); break;
case OP_MINUSMOVE_C: StackReq(2,1); t1=Pop(); Numeric(t1); i=v_object(Pop()); i=defer_move(i,t1.u,0); Push(NVALUE(i)); break;
case OP_MINUSMOVE_D: StackReq(1,0); t1=Pop(); Numeric(t1); defer_move(obj,t1.u,0); break;
case OP_MINUSMOVE_CD: StackReq(2,1); t1=Pop(); Numeric(t1); i=v_object(Pop()); defer_move(i,t1.u,0); break;
case OP_MOD: StackReq(2,1); t2=Pop(); DivideBy(t2); t1=Pop(); Numeric(t1); Push(NVALUE(t1.u%t2.u)); break;
case OP_MOD_C: StackReq(2,1); t2=Pop(); DivideBy(t2); t1=Pop(); Numeric(t1); Push(NVALUE(t1.s%t2.s)); break;
case OP_MOVE: NoIgnore(); StackReq(1,1); t1=Pop(); Numeric(t1); o->inertia=o->strength; Push(NVALUE(move_dir(obj,obj,t1.u))); break;
case OP_MOVE_C: NoIgnore(); StackReq(2,1); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i==VOIDLINK) Push(NVALUE(0)); else { objects[i]->inertia=o->strength; Push(NVALUE(move_dir(obj,i,t1.u))); } break;
case OP_MOVE_D: NoIgnore(); StackReq(1,0); t1=Pop(); Numeric(t1); o->inertia=o->strength; move_dir(obj,obj,t1.u); break;
case OP_MOVE_CD: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) { objects[i]->inertia=o->strength; move_dir(obj,i,t1.u); } break;
case OP_MOVED: StackReq(0,1); if(o->oflags&OF_MOVED) Push(NVALUE(1)); else Push(NVALUE(0)); break;
case OP_MOVED_C: StackReq(1,1); GetFlagOf(OF_MOVED); break;
case OP_MOVED_E: NoIgnore(); StackReq(1,0); if(v_bool(Pop())) o->oflags|=OF_MOVED; else o->oflags&=~OF_MOVED; break;
case OP_MOVED_EC: NoIgnore(); StackReq(2,0); SetFlagOf(OF_MOVED); break;
case OP_MOVENUMBER: StackReq(0,1); Push(NVALUE(move_number)); break;
case OP_MOVEPLUS: NoIgnore(); StackReq(1,1); t1=Pop(); Numeric(t1); o->inertia+=o->strength; Push(NVALUE(move_dir(obj,obj,t1.u))); break;
case OP_MOVEPLUS_C: NoIgnore(); StackReq(2,1); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i==VOIDLINK) Push(NVALUE(0)); else {objects[i]->inertia+=o->strength;Push(NVALUE(move_dir(obj,i,t1.u)));} break;
case OP_MOVEPLUS_D: NoIgnore(); StackReq(1,0); t1=Pop(); Numeric(t1); o->inertia+=o->strength; move_dir(obj,obj,t1.u); break;
case OP_MOVEPLUS_CD: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) { objects[i]->inertia+=o->strength; move_dir(obj,i,t1.u); } break;
case OP_MOVETO: NoIgnore(); StackReq(2,1); t3=Pop(); Numeric(t3); t2=Pop(); Numeric(t2); Push(NVALUE(move_to(obj,obj,t2.u,t3.u))); break;
case OP_MOVETO_C: NoIgnore(); StackReq(3,1); t3=Pop(); Numeric(t3); t2=Pop(); Numeric(t2); i=v_object(Pop()); Push(NVALUE(move_to(obj,i,t2.u,t3.u))); break;
case OP_MOVETO_D: NoIgnore(); StackReq(2,0); t3=Pop(); Numeric(t3); t2=Pop(); Numeric(t2); move_to(obj,obj,t2.u,t3.u); break;
case OP_MOVETO_CD: NoIgnore(); StackReq(3,0); t3=Pop(); Numeric(t3); t2=Pop(); Numeric(t2); i=v_object(Pop()); move_to(obj,i,t2.u,t3.u); break;
case OP_MOVING: StackReq(0,1); if(o->oflags&OF_MOVING) Push(NVALUE(1)); else Push(NVALUE(0)); break;
case OP_MOVING_C: StackReq(1,1); GetFlagOf(OF_MOVING); break;
case OP_MOVING_E: NoIgnore(); StackReq(1,0); if(v_bool(Pop())) o->oflags|=OF_MOVING; else o->oflags&=~OF_MOVING; break;
case OP_MOVING_EC: NoIgnore(); StackReq(2,0); SetFlagOf(OF_MOVING); break;
case OP_MSG: StackReq(0,1); Push(MVALUE(msgvars.msg)); break;
case OP_MUL: StackReq(2,1); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); Push(NVALUE(t1.u*t2.u)); break;
case OP_MUL_C: StackReq(2,1); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); Push(NVALUE(t1.s*t2.s)); break;
case OP_NE: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_equal(t1,t2)?0:1)); break;
case OP_NEG: StackReq(1,1); t1=Pop(); Numeric(t1); t1.s=-t1.s; Push(t1); break;
case OP_NEWX: StackReq(2,1); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); Push(NVALUE(new_x(t1.u,t2.u))); break;
case OP_NEWXY: StackReq(3,1); t3=Pop(); Numeric(t3); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); Push(NVALUE(new_x(t1.u,t3.u))); Push(NVALUE(new_y(t2.u,t3.u))); break;
case OP_NEWY: StackReq(2,1); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); Push(NVALUE(new_y(t1.u,t2.u))); break;
case OP_NEXT: StackReq(0,1); ptr=v_next(code,ptr); break;
case OP_NIN: StackReq(2,1); i=v_in(); Push(NVALUE(i?0:1)); break;
case OP_NIP: StackReq(2,1); t1=Pop(); Pop(); Push(t1); break;
case OP_OBJABOVE: StackReq(0,1); i=obj_above(obj); Push(OVALUE(i)); break;
case OP_OBJABOVE_C: StackReq(1,1); i=obj_above(v_object(Pop())); Push(OVALUE(i)); break;
case OP_OBJBELOW: StackReq(0,1); i=obj_below(obj); Push(OVALUE(i)); break;
case OP_OBJBELOW_C: StackReq(1,1); i=obj_below(v_object(Pop())); Push(OVALUE(i)); break;
case OP_OBJBOTTOMAT: StackReq(2,1); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); i=obj_bottom_at(t1.u,t2.u); Push(OVALUE(i)); break;
case OP_OBJCLASSAT: StackReq(3,1); t3=Pop(); t2=Pop(); t1=Pop(); Push(v_obj_class_at(t1,t2,t3)); break;
case OP_OBJDIR: StackReq(1,1); t2=Pop(); Numeric(t2); i=obj_dir(obj,t2.u); Push(OVALUE(i)); break;
case OP_OBJDIR_C: StackReq(2,1); t2=Pop(); Numeric(t2); i=obj_dir(v_object(Pop()),t2.u); Push(OVALUE(i)); break;
case OP_OBJLAYERAT: StackReq(3,1); t3=Pop(); Numeric(t3); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); i=obj_layer_at(t1.u,t2.u,t3.u); Push(OVALUE(i)); break;
case OP_OBJMOVINGTO: StackReq(2,0); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); v_obj_moving_to(t1.u,t2.u); break;
case OP_OBJTOPAT: StackReq(2,1); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); i=obj_top_at(t1.u,t2.u); Push(OVALUE(i)); break;
case OP_OVER: StackReq(2,3); t2=Pop(); t1=Pop(); Push(t1); Push(t2); Push(t1); break;
case OP_PICK: StackReq(0,1); t1=Pop(); Numeric(t1); if(t1.u>=vstackptr) Throw("Stack index out of range"); t1=vstack[vstackptr-t1.u-1]; Push(t1); break;
case OP_PLAYER: StackReq(0,1); if(classes[o->class]->cflags&CF_PLAYER) Push(NVALUE(1)); else Push(NVALUE(0)); break;
case OP_PLAYER_C: StackReq(1,1); GetClassFlagOf(CF_PLAYER); break;
case OP_PLUSMOVE: StackReq(1,1); t1=Pop(); Numeric(t1); i=defer_move(obj,t1.u,1); Push(NVALUE(i)); break;
case OP_PLUSMOVE_C: StackReq(2,1); t1=Pop(); Numeric(t1); i=v_object(Pop()); i=defer_move(i,t1.u,1); Push(NVALUE(i)); break;
case OP_PLUSMOVE_D: StackReq(1,0); t1=Pop(); Numeric(t1); defer_move(obj,t1.u,1); break;
case OP_PLUSMOVE_CD: StackReq(2,1); t1=Pop(); Numeric(t1); i=v_object(Pop()); defer_move(i,t1.u,1); break;
case OP_POPUP: StackReq(1,0); v_set_popup(obj,0); break;
case OP_POPUPARGS: i=code[ptr++]; StackReq(i+1,0); v_set_popup(obj,i); break;
case OP_QA: StackReq(1,1); t1=Pop(); NotSound(t1); if(t1.t==TY_ARRAY) Push(NVALUE(1)); else Push(NVALUE(0)); break;
case OP_QC: StackReq(1,1); t1=Pop(); NotSound(t1); if(t1.t==TY_CLASS) Push(NVALUE(1)); else Push(NVALUE(0)); break;
case OP_QCZ: StackReq(1,1); t1=Pop(); NotSound(t1); if(t1.t==TY_CLASS || (t1.t==TY_NUMBER && !t1.u)) Push(NVALUE(1)); else Push(NVALUE(0)); break;
case OP_QM: StackReq(1,1); t1=Pop(); NotSound(t1); if(t1.t==TY_MESSAGE) Push(NVALUE(1)); else Push(NVALUE(0)); break;
case OP_QN: StackReq(1,1); t1=Pop(); NotSound(t1); if(t1.t==TY_NUMBER) Push(NVALUE(1)); else Push(NVALUE(0)); break;
|
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clear_inventory();
for(i=0;i<nlevelstrings;i++) free(levelstrings[i]);
nlevelstrings=0;
free(deadanim);
deadanim=0;
ndeadanim=0;
}
static inline int try_sharp(Uint32 n1,Uint32 n2) {
Object*o=objects[n1];
Object*p=objects[n2];
if((o->oflags|p->oflags)&OF_DESTROYED) return 0;
if(o->dir&1) return 0;
if(p->x!=o->x+x_delta[o->dir] || p->y!=o->y+y_delta[o->dir]) return 0;
if(p->hard[(o->dir^4)>>1]<=o->sharp[o->dir>>1]) return 0;
return !v_bool(destroy(n1,n2,o->oflags&OF_MOVING?2:1));
}
static Uint32 handle_colliding(Uint32 n1,Uint32 n2,Uint8 r1,Uint8 r2) {
// n1 = the object trying to move
// n2 = the object it is colliding with (which might also be trying to move, or might not)
Value v;
Uint32 h;
v=send_message(n1,n2,MSG_COLLIDING,NVALUE(objects[n1]->x),NVALUE(objects[n1]->y),NVALUE(r1));
if(v.t) Throw("Type mismatch");
h=(v.u>>16)|(v.u<<16);
v=send_message(n2,n1,MSG_COLLIDING,NVALUE(objects[n2]->x),NVALUE(objects[n2]->y),NVALUE(r2));
if(v.t) Throw("Type mismatch");
h|=v.u;
if((h&0x0002) && try_sharp(n1,n2)) h|=0x0004;
if((h&0x00020000) && try_sharp(n2,n1)) h|=0x00040000;
return h;
}
static Uint32 deferred_colliding(Uint32 obj,int x,int y) {
Object*o=objects[obj];
Object*oE;
Uint32 h=0xFFFFFFFF;
Uint32 objE=playfield[x+y*64-65];
Uint8 d;
int xx,yy;
while(objE!=VOIDLINK) {
oE=objects[objE];
if(!(oE->oflags&(OF_DESTROYED|OF_VISUALONLY))) {
if(oE->oflags&OF_MOVING) {
// At this point, it is necessary to check for a loop, which may be like the diagram below:
// >>>>>>>v
// ^<<<<
// The loop may also have a different shape.
// If a loop is found, call the handle_colliding function to determine what to do next.
// If there is no loop, allow the move to be retried later, trying objE's location next.
}
if(oE->height>o->climb || (classes[o->class]->collisionLayers&classes[oE->class]->collisionLayers)) {
h&=handle_colliding(obj,objE,1,0);
}
}
objE=oE->up;
}
// Find other objects trying to move to the same place
if(h&8) for(d=0;d<8;d++) {
xx=x-x_delta[d];
yy=y-y_delta[d];
if(xx<1 || xx>pfwidth || yy<1 || yy>pfheight) continue;
objE=playfield[xx+yy*64-65];
while(objE!=VOIDLINK) {
oE=objects[objE];
if(obj!=objE && (oE->oflags&OF_MOVING) && oE->dir==d && !(oE->oflags&OF_DESTROYED)) {
if(o->height>oE->climb || oE->height>o->climb || (classes[o->class]->collisionLayers&classes[oE->class]->collisionLayers)) {
h&=handle_colliding(obj,objE,2,2);
}
}
objE=oE->up;
}
}
return ~h;
}
static void do_deferred_moves(void) {
Object*o;
Object*p;
Uint32 h,n;
int i,x,y;
Uint8 re;
restart:
re=0;
for(i=0;i<64*pfheight;i++) {
retry:
n=playfield[i];
while(n!=VOIDLINK) {
o=objects[n];
if((o->oflags&(OF_MOVING|OF_DESTROYED))==OF_MOVING) {
x=o->x+x_delta[o->dir];
y=o->y+y_delta[o->dir];
if(x<1 || x>pfwidth || y<1 || y>pfheight || playfield[x+y*64-65]==VOIDLINK) goto stop;
h=deferred_colliding(n,x,y);
if((h&1) && (o->oflags&OF_MOVING) && move_to(VOIDLINK,n,x,y)) {
re=1;
o->oflags=(o->oflags|OF_MOVED)&~OF_MOVING;
i-=65;
if(i<0) i=0;
goto retry;
}
stop:
if(!(h&4)) o->oflags&=~OF_MOVING;
}
skip:
n=o->up;
}
}
if(re) goto restart;
}
static void execute_animation(Uint32 obj) {
Object*o=objects[obj];
Animation*a=o->anim;
if(!(a->step[a->lstep].flag&ANI_ONCE)) return;
if(a->ltime>=a->step[a->lstep].speed) {
a->ltime=0;
|