87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
//
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// Created by Wouter Groeneveld on 26/07/18.
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//
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#include <libgba-sprite-engine/sprites/sprite_manager.h>
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#include <libgba-sprite-engine/sprites/affine_sprite.h>
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#include <libgba-sprite-engine/gba/tonc_core.h>
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#include <libgba-sprite-engine/allocator.h>
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#include <libgba-sprite-engine/background/text_stream.h>
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#define MAX_SPRITE_SIZE 128
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#define MAX_AFFINE_SIZE 31
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void SpriteManager::set(std::vector<Sprite*> sprites) {
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initialized = false;
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this->sprites.clear();
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this->sprites.insert(this->sprites.end(), sprites.begin(), sprites.end());
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}
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void SpriteManager::add(Sprite* sprite) {
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if(sprites.size() == MAX_SPRITE_SIZE) {
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failure_gba(MaxSpriteSizeReached);
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}
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sprites.push_back(sprite);
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copyOverImageDataToVRAM(sprite);
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}
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void SpriteManager::render() {
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// WARNING - This is called every time in the main update loop; keep amount of instructions as minimal as possible in here!
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copyOverSpriteOAMToVRAM();
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}
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void SpriteManager::persist() {
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copyOverImageDataToVRAM();
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initialized = true;
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}
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void SpriteManager::copyOverSpriteOAMToVRAM() {
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int i = 0;
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int affineIndex = 0;
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for(auto sprite : this->sprites) {
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sprite->update();
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oam_mem[i] = sprite->oam;
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auto affine = dynamic_cast<AffineSprite*>(sprite);
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if(affine) {
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// WHY warning: can't do this: obj_aff_mem[affineIndex] = *affineShadow;
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// because that would override OAM also! only want to set non-overlapping affine attribs
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affine->setTransformationMatrix(&obj_aff_mem[affineIndex]);
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affine->setAffineIndex(affineIndex);
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affineIndex++;
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}
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i++;
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}
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}
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void SpriteManager::hideAll() {
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for(int i = 0; i < MAX_SPRITE_SIZE; i++) {
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oam_mem[i].attr0 = ATTR0_HIDE;
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}
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}
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void SpriteManager::copyOverImageDataToVRAM(Sprite *sprite) {
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if(!sprite->data && sprite->imageSize == 0) {
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// assume it's copied over from another sprite
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sprite->buildOam(sprite->tileIndex);
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} else {
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const auto allocated = Allocator::allocateObjectTiles(sprite->imageSize);
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dma3_cpy(allocated.pointer(), sprite->data, allocated.size);
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sprite->buildOam(allocated.getTileLocation());
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}
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}
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void SpriteManager::copyOverImageDataToVRAM() {
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for(auto sprite : sprites) {
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copyOverImageDataToVRAM(sprite);
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}
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}
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