/**
* Functionality required by all event types on each iteration
*
* @param ticks Time
* @param msps Ticks per step
*
* @return Animation
*/
EventType* Event::prepareStep (unsigned int ticks, int msps) {
// Process the next event
if (next) next = next->step(ticks, msps);
// Get the event properties
set = level->getEvent(gridX, gridY);
// If the event has been removed from the grid, destroy it
if (!set) return NULL;
// If the event and its origin are off-screen, the event is not in the
// process of self-destruction, remove it
if (((animType & ~1) != E_LFINISHANIM) &&
((x < viewX - F192) || (x > viewX + ITOF(viewW) + F192) ||
(y < viewY - F160) || (y > viewY + ITOF(viewH) + F160)) &&
((gridX < FTOT(viewX) - 1) ||
(gridX > ITOT(FTOI(viewX) + viewW) + 1) ||
(gridY < FTOT(viewY) - 1) ||
(gridY > ITOT(FTOI(viewY) + viewH) + 1))) return NULL;
return set;
}
static int
vfs_vget_9p(struct mount *mp, ino64_t ino, vnode_t *vpp, vfs_context_t ctx)
{
vnode_t vp;
qid_9p qid;
int e;
TRACE();
qid.path = ITOP(ino);
qid.type = ITOT(ino);
*vpp = NULL;
if ((e=nget_9p(MTO9P(mp), NOFID, qid, NULL, &vp, NULL, ctx)))
return e;
nunlock_9p(NTO9P(vp));
if ((e=vnode_get(vp)))
return e;
*vpp = vp;
return 0;
}
/**
* Draw the layer.
*
* @param tileSet The tile set to use for non-flipped tiles
* @param flippedTileSet The tile set to use for flipped tiles
*/
void JJ2Layer::draw (SDL_Surface* tileSet, SDL_Surface* flippedTileSet) {
SDL_Rect src, dst;
int vX, vY;
int x, y;
// Set tile drawing dimensions
src.w = TTOI(1);
src.h = TTOI(1);
src.x = 0;
// Calculate the layer view
vX = FTOI(FTOI(viewX) * xSpeed);
vY = FTOI(FTOI(viewY) * ySpeed);
if (limit) {
if (!tileX) {
if (vX + canvasW > TTOI(width)) vX = TTOI(width) - canvasW;
}
if (!tileY) {
vY -= canvasH - SH;
if (vY + canvasH > TTOI(height)) vY = TTOI(height) - canvasH;
}
}
for (y = 0; y <= ITOT(canvasH - 1) + 1; y++) {
for (x = 0; x <= ITOT(canvasW - 1) + 1; x++) {
dst.x = TTOI(x) - (vX & 31);
dst.y = TTOI(y) - (vY & 31);
src.y = TTOI(getTile(x + ITOT(vX), y + ITOT(vY)));
if (src.y) SDL_BlitSurface(getFlipped(x + ITOT(vX), y + ITOT(vY))? flippedTileSet: tileSet, &src, canvas, &dst);
}
}
return;
}