/**
* Called from TagProcess, NextTaggedActor() is
* called repeatedly until the caller gets fed up or
* there are no more tagged actors to look at.
*/
int NextTaggedActor(int previous) {
PMOVER pMover;
// Convert actor number to index
if (!previous)
previous = -1;
else
previous = TaggedActorIndex(previous);
while (++previous < numTaggedActors) {
pMover = GetMover(taggedActors[previous].id);
// No tag on lead actor while he's moving
if ((taggedActors[previous].id) == GetLeadId() && MoverMoving(pMover)) {
taggedActors[previous].tagFlags &= ~(POINTING | TAGWANTED);
continue;
}
// Not if the actor doesn't exist at the moment
if (pMover && !MoverIs(pMover))
continue;
if (!(pMover ? MoverHidden(pMover) : ActorHidden(taggedActors[previous].id))) {
return taggedActors[previous].id;
}
}
return 0;
}
/**
* See if the actor on whom the camera is is approaching an edge.
* Request a scroll if he is.
*/
static void MonitorScroll() {
int newx, newy;
int Loffset, Toffset;
/*
* Only do it if the actor is there and is visible
*/
if (!g_pScrollMover || MoverHidden(g_pScrollMover) || !MoverIs(g_pScrollMover))
return;
GetActorPos(g_scrollActor, &newx, &newy);
if (g_oldx == newx && g_oldy == newy)
return;
PlayfieldGetPos(FIELD_WORLD, &Loffset, &Toffset);
/*
* Approaching right side or left side of the screen?
*/
if (newx > Loffset+SCREEN_WIDTH - RLDISTANCE && Loffset < g_ImageW - SCREEN_WIDTH) {
if (newx > g_oldx)
NeedScroll(LEFT);
} else if (newx < Loffset + RLDISTANCE && Loffset) {
if (newx < g_oldx)
NeedScroll(RIGHT);
}
/*
* Approaching bottom or top of the screen?
*/
if (newy > Toffset+SCREEN_HEIGHT-DDISTANCE && Toffset < g_ImageH-SCREEN_HEIGHT) {
if (newy > g_oldy)
NeedScroll(UP);
} else if (Toffset && newy < Toffset + UDISTANCE + GetActorBottom(g_scrollActor) - GetActorTop(g_scrollActor)) {
if (newy < g_oldy)
NeedScroll(DOWN);
}
g_oldx = newx;
g_oldy = newy;
}
/**
* Perform a walk directly initiated by a click.
*/
static void WalkProcess(CORO_PARAM, const void *param) {
// COROUTINE
CORO_BEGIN_CONTEXT;
PMOVER pMover;
int thisWalk;
CORO_END_CONTEXT(_ctx);
const WP_INIT *to = (const WP_INIT *)param; // get the co-ordinates - copied to process when it was created
CORO_BEGIN_CODE(_ctx);
_ctx->pMover = GetMover(LEAD_ACTOR);
if (TinselV2 && MoverIs(_ctx->pMover) && !MoverIsSWalking(_ctx->pMover)) {
assert(_ctx->pMover->hCpath != NOPOLY); // Lead actor is not in a path
_ctx->thisWalk = SetActorDest(_ctx->pMover, to->x, to->y, false, 0);
DontScrollCursor();
while (MoverMoving(_ctx->pMover) && (_ctx->thisWalk == GetWalkNumber(_ctx->pMover)))
CORO_SLEEP(1);
} else if (!TinselV2 && _ctx->pMover->bActive) {
assert(_ctx->pMover->hCpath != NOPOLY); // Lead actor is not in a path
GetToken(TOKEN_LEAD);
SetActorDest(_ctx->pMover, to->x, to->y, false, 0);
DontScrollCursor();
while (MoverMoving(_ctx->pMover))
CORO_SLEEP(1);
FreeToken(TOKEN_LEAD);
}
CORO_END_CODE;
}
