93 lines
2.5 KiB
C++
93 lines
2.5 KiB
C++
// Copyright (c) 2022 Dominic Masters
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//
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// This software is released under the MIT License.
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// https://opensource.org/licenses/MIT
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#include "TiledSprite.hpp"
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#include "scene/SceneItem.hpp"
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using namespace Dawn;
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TiledSprite::TiledSprite(std::weak_ptr<SceneItem> item) :
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SceneItemComponent(item),
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tile(-1),
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tileset(nullptr),
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meshHost(nullptr),
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flip(TILED_SPRITE_FLIP_Y),
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sizeType(TILED_SPRITE_SIZE_TYPE_SCALE),
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size(1.0f)
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{
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}
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std::vector<std::shared_ptr<SceneItemComponent>> TiledSprite::getDependencies() {
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if(this->meshHost == nullptr) {
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this->meshHost = item.lock()->getComponent<QuadMeshHost>();
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}
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return { this->meshHost._realValue };
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}
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void TiledSprite::onStart() {
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SceneItemComponent::onStart();
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useEffect([&]{
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if(this->meshHost == nullptr || this->tileset == nullptr) return;
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auto tile = this->tileset->getTile(this->tile);
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this->meshHost->uv0 = glm::vec2(
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(((flag_t)this->flip) & TILED_SPRITE_FLIP_X) == 0 ? tile.uv0.x : tile.uv1.x,
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(((flag_t)this->flip) & TILED_SPRITE_FLIP_Y) == 0 ? tile.uv0.y : tile.uv1.y
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);
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this->meshHost->uv1 = glm::vec2(
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(((flag_t)this->flip) & TILED_SPRITE_FLIP_X) == 0 ? tile.uv1.x : tile.uv0.x,
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(((flag_t)this->flip) & TILED_SPRITE_FLIP_Y) == 0 ? tile.uv1.y : tile.uv0.y
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);
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}, {
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&this->tile,
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&this->meshHost,
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&this->tileset,
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&this->flip
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})();
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useEffect([&]{
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if(this->meshHost == nullptr || this->tileset == nullptr) return;
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auto tile = this->tileset->getTile(this->tile);
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glm::vec2 quadSize;
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switch(this->sizeType) {
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case TILED_SPRITE_SIZE_TYPE_SCALE: {
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quadSize = glm::vec2(
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this->tileset->getTileWidth(this->tile),
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this->tileset->getTileHeight(this->tile)
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) * (float_t)this->size;
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break;
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}
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case TILED_SPRITE_SIZE_TYPE_WIDTH_RATIO: {
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float_t rw = this->tileset->getTileHeight(this->tile) / this->tileset->getTileWidth(this->tile);
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quadSize.x = (float_t)this->size;
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quadSize.y = quadSize.x * rw;
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break;
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}
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case TILED_SPRITE_SIZE_TYPE_HEIGHT_RATIO: {
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float_t rh = this->tileset->getTileWidth(this->tile) / this->tileset->getTileHeight(this->tile);
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quadSize.y = (float_t)this->size;
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quadSize.x = quadSize.y * rh;
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break;
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}
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default:
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assertUnreachable("TiledSprite::onStart: Size type not implemented");
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}
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this->meshHost->xy0 = -quadSize;
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this->meshHost->xy1 = quadSize;
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}, {
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&this->tile,
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&this->meshHost,
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&this->tileset,
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&this->size
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})();
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} |