82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
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#include "Display2D.h"
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#include "Renderable.h"
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#include <SDL.h>
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#include <iostream>
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Display2D::Display2D()
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{
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return;
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}
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int Display2D::addActor(Actor *actor, int layer)
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{
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Display::addActor(actor);
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this->layers[layer].push_back(actor);
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//std::cerr << "Added actor " << actor << " to layer " << layer << "\n";
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return 0;
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}
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void Display2D::update(int logicOnly)
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{
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ActorListIterator actorIter;
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ActorListIterator newActorIter;
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SDL_Surface *curFrame = NULL;
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Actor *actor = NULL;
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if ( this->active == 0 ) {
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return;
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}
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//std::cerr << "Updating Display2D " << this << "\n";
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SDL_Rect screen = {0, 0, this->canvas->w, this->canvas->h};
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Vector actorpos;
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if ( this->canvas->refcount < 2 ) {
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// don't blank out someone's shared canvas
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SDL_FillRect(this->canvas, &screen, 0);
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}
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for ( int layer = 0; layer < MAX_LAYERS; layer++ ) {
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//std::cerr << "Displaying " << this->layers[layer].size() << " sprites on layer " << layer << " on canvas " << this->canvas << "\n";
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actorIter = this->layers[layer].begin();
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while ( actorIter != this->layers[layer].end() ) {
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actor = (*actorIter);
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//std::cerr << "Updating actor " << actor << "\n";
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if ( actor != NULL ) {
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actor->update();
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if ( logicOnly == 0 ) {
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curFrame = actor->nextFrame();
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actorpos = actor->getPosition(1);
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//std::cerr << "Position of " << actor << " " << actorpos.x << "x" << actorpos.y << "\n";
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if ( curFrame ) {
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//std::cerr << "Blitting sprite " << curFrame << " to (" << actorpos.x << "," << actorpos.y << ")...\n";
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SDL_Rect srcRect = {0, 0, curFrame->w, curFrame->h};
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SDL_Rect destRect = {(Sint16) actorpos.x, (Sint16)actorpos.y, 0, 0};
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SDL_BlitSurface(curFrame, &srcRect, this->canvas, &destRect);
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}
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}
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// more logic
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if ( actor->hasState(STATE_DEAD) ) {
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actorIter = this->layers[layer].erase(actorIter);
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newActorIter = this->actors.begin();
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while ( newActorIter < this->actors.begin() ) {
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if ( *newActorIter == actor ) {
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newActorIter = this->actors.erase(newActorIter);
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continue;
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}
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newActorIter++;
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}
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//delete actor;
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continue;
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}
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}
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actorIter++;
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}
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}
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}
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void Display2D::setTransparentBG()
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{
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SDL_SetColorKey(this->canvas, SDL_SRCCOLORKEY, SDL_MapRGB(this->canvas->format, 0, 0, 0));
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}
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