void SpriteSlots::drawBackground() {
Scene &scene = _vm->_game->_scene;
// Initial draw loop for any active sprites in the background
for (uint i = 0; i < size(); ++i) {
SpriteSlot &spriteSlot = (*this)[i];
DirtyArea &dirtyArea = scene._dirtyAreas[i];
if (spriteSlot._flags >= IMG_STATIC) {
// Foreground sprite, so we can ignore it
dirtyArea._active = false;
} else {
dirtyArea._active = true;
dirtyArea.setSpriteSlot(&spriteSlot);
if (spriteSlot._flags == IMG_DELTA) {
// Background object, so need to draw it
assert(spriteSlot._frameNumber > 0);
SpriteAsset *asset = scene._sprites[spriteSlot._spritesIndex];
MSprite *frame = asset->getFrame(spriteSlot._frameNumber - 1);
Common::Point pt = spriteSlot._position;
if (spriteSlot._scale != -1) {
// Adjust the drawing position
pt.x -= frame->w / 2;
pt.y -= frame->h - 1;
}
if (spriteSlot._depth <= 1) {
scene._backgroundSurface.transBlitFrom(*frame, pt, frame->getTransparencyIndex());
} else if (scene._depthStyle == 0) {
scene._backgroundSurface.copyFrom(*frame, pt, spriteSlot._depth, &scene._depthSurface,
-1, false, frame->getTransparencyIndex());
} else {
scene._backgroundSurface.transBlitFrom(*frame, pt, frame->getTransparencyIndex());
}
}
}
}
// Mark any remaning sprite slot dirty areas as inactive
for (uint i = size(); i < SPRITE_SLOTS_MAX_SIZE; ++i)
scene._dirtyAreas[i]._active = false;
// Flag any active text display
for (uint i = 0; i < scene._textDisplay.size(); ++i) {
TextDisplay &textDisplay = scene._textDisplay[i];
DirtyArea &dirtyArea = scene._dirtyAreas[i + SPRITE_SLOTS_MAX_SIZE];
if (textDisplay._expire >= 0 || !textDisplay._active) {
dirtyArea._active = false;
} else {
dirtyArea._active = true;
dirtyArea.setTextDisplay(&textDisplay);
}
}
}
void EventsManager::changeCursor() {
if (_cursorSprites) {
MSprite *cursor = _cursorSprites->getFrame(_cursorId - 1);
assert(cursor->w == cursor->h);
byte transIndex = cursor->getTransparencyIndex();
// Check for hotspot indication pixels along the right-hand and bottom
// row. Put together, these give the cursor's hotspot x,y
int hotspotX = 0, hotspotY = 0;
byte *cursorData = cursor->getData();
for (int idx = 0; idx < cursor->w; ++idx) {
if (cursorData[(cursor->h - 1) * cursor->w + idx] != transIndex)
hotspotX = idx;
if (cursorData[(idx + 1) * cursor->w - 1] != transIndex)
hotspotY = idx;
}
// Reduce the cursor data to remove the last column from each row, since
// the cursor routines don't have a pitch option
byte *destCursor = new byte[(cursor->w - 1) * (cursor->h - 1)];
byte *srcP = cursorData;
byte *destP = destCursor;
for (int idx = 0; idx < (cursor->h - 1); ++idx) {
Common::copy(srcP, srcP + cursor->w - 1, destP);
srcP += cursor->w;
destP += cursor->w - 1;
}
// Set the raw cursor data to use
CursorMan.replaceCursor(destCursor, cursor->w - 1, cursor->h - 1,
hotspotX, hotspotY, transIndex);
showCursor();
delete[] destCursor;
}
}
void UISlots::draw(bool updateFlag, bool delFlag) {
Scene &scene = _vm->_game->_scene;
UserInterface &userInterface = scene._userInterface;
DirtyArea *dirtyAreaPtr = nullptr;
// Loop through setting up the dirty areas
for (uint idx = 0; idx < size(); ++idx) {
DirtyArea &dirtyArea = userInterface._dirtyAreas[idx];
UISlot &slot = (*this)[idx];
if (slot._flags >= IMG_STATIC) {
dirtyArea._active = false;
} else {
dirtyArea.setUISlot(&slot);
dirtyArea._textActive = true;
if (slot._segmentId == IMG_SPINNING_OBJECT && slot._flags == IMG_FULL_UPDATE) {
dirtyArea._active = false;
dirtyAreaPtr = &dirtyArea;
}
}
}
userInterface._dirtyAreas.merge(1, userInterface._uiSlots.size());
if (dirtyAreaPtr)
dirtyAreaPtr->_active = true;
// Copy parts of the user interface background that need to be erased
for (uint idx = 0; idx < size(); ++idx) {
DirtyArea &dirtyArea = userInterface._dirtyAreas[idx];
UISlot &slot = (*this)[idx];
if (dirtyArea._active && dirtyArea._bounds.width() > 0
&& dirtyArea._bounds.height() > 0 && slot._flags > -20) {
if (slot._flags >= IMG_ERASE) {
// Merge area
userInterface.mergeFrom(&userInterface._surface, dirtyArea._bounds,
Common::Point(dirtyArea._bounds.left, dirtyArea._bounds.top));
} else {
// Copy area
userInterface._surface.copyTo(&userInterface, dirtyArea._bounds,
Common::Point(dirtyArea._bounds.left, dirtyArea._bounds.top));
}
}
}
for (uint idx = 0; idx < size(); ++idx) {
DirtyArea &dirtyArea = userInterface._dirtyAreas[idx];
UISlot &slot = (*this)[idx];
int slotType = slot._flags;
if (slotType >= IMG_STATIC) {
dirtyArea.setUISlot(&slot);
if (!updateFlag)
slotType &= ~0x40;
dirtyArea._textActive = slotType > 0;
slot._flags &= 0x40;
}
}
userInterface._dirtyAreas.merge(1, userInterface._uiSlots.size());
for (uint idx = 0; idx < size(); ++idx) {
DirtyArea *dirtyArea = &userInterface._dirtyAreas[idx];
UISlot &slot = (*this)[idx];
if (slot._flags >= IMG_STATIC && !(slot._flags & 0x40)) {
if (!dirtyArea->_active) {
do {
dirtyArea = dirtyArea->_mergedArea;
} while (!dirtyArea->_active);
}
if (dirtyArea->_textActive) {
SpriteAsset *asset = scene._sprites[slot._spritesIndex];
// Get the frame details
int frameNumber = ABS(slot._frameNumber);
bool flipped = slot._frameNumber < 0;
if (slot._segmentId == IMG_SPINNING_OBJECT) {
MSprite *sprite = asset->getFrame(frameNumber - 1);
sprite->copyTo(&userInterface, slot._position,
sprite->getTransparencyIndex());
} else {
MSprite *sprite = asset->getFrame(frameNumber - 1);
if (flipped) {
MSurface *spr = sprite->flipHorizontal();
userInterface.mergeFrom(spr, spr->getBounds(), slot._position,
sprite->getTransparencyIndex());
delete spr;
} else {
userInterface.mergeFrom(sprite, sprite->getBounds(), slot._position,
sprite->getTransparencyIndex());
}
}
}
}
}
// Mark areas of the screen surface for updating
if (updateFlag) {
for (uint idx = 0; idx < size(); ++idx) {
DirtyArea &dirtyArea = userInterface._dirtyAreas[idx];
if (dirtyArea._active && dirtyArea._textActive &&
dirtyArea._bounds.width() > 0 && dirtyArea._bounds.height() > 0) {
// Flag area of screen as needing update
Common::Rect r = dirtyArea._bounds;
r.translate(0, scene._interfaceY);
_vm->_screen.copyRectToScreen(r);
}
}
}
// Post-processing to remove slots no longer needed
for (int idx = (int)size() - 1; idx >= 0; --idx) {
UISlot &slot = (*this)[idx];
if (slot._flags < IMG_STATIC) {
if (delFlag || updateFlag)
remove_at(idx);
else if (slot._flags > -20)
slot._flags -= 20;
} else {
if (updateFlag)
slot._flags &= ~0x40;
else
slot._flags |= 0x40;
}
}
}
void SpriteSlots::drawSprites(MSurface *s) {
DepthList depthList;
Scene &scene = _vm->_game->_scene;
// Get a list of sprite object depths for active objects
for (uint i = 0; i < size(); ++i) {
SpriteSlot &spriteSlot = (*this)[i];
if (spriteSlot._flags >= IMG_STATIC) {
DepthEntry rec(16 - spriteSlot._depth, i);
depthList.push_back(rec);
}
}
// Sort the list in order of the depth
Common::sort(depthList.begin(), depthList.end(), sortHelper);
// Loop through each of the objects
DepthList::iterator i;
for (i = depthList.begin(); i != depthList.end(); ++i) {
DepthEntry &de = *i;
SpriteSlot &slot = (*this)[de.index];
assert(slot._spritesIndex < (int)scene._sprites.size());
SpriteAsset &spriteSet = *scene._sprites[slot._spritesIndex];
// Get the sprite frame
int frameNumber = ABS(slot._frameNumber);
bool flipped = slot._frameNumber < 0;
assert(frameNumber > 0);
MSprite *sprite = spriteSet.getFrame(frameNumber - 1);
if ((slot._scale < 100) && (slot._scale != -1)) {
// Scaled drawing
s->copyFrom(*sprite, slot._position, slot._depth, &scene._depthSurface,
slot._scale, flipped, sprite->getTransparencyIndex());
} else {
int xp, yp;
if (slot._scale == -1) {
xp = slot._position.x - scene._posAdjust.x;
yp = slot._position.y - scene._posAdjust.y;
} else {
xp = slot._position.x - (sprite->w / 2) - scene._posAdjust.x;
yp = slot._position.y - sprite->h - scene._posAdjust.y + 1;
}
if (slot._depth > 1) {
// Draw the frame with depth processing
s->copyFrom(*sprite, Common::Point(xp, yp), slot._depth, &scene._depthSurface,
-1, flipped, sprite->getTransparencyIndex());
} else {
MSurface *spr = sprite;
if (flipped) {
// Create a flipped copy of the sprite temporarily
spr = sprite->flipHorizontal();
}
// No depth, so simply draw the image
s->transBlitFrom(*spr, Common::Point(xp, yp), sprite->getTransparencyIndex());
// Free sprite if it was a flipped one
if (flipped) {
spr->free();
delete spr;
}
}
}
}
}