Dawn/src/dawn/scene/components/display/TiledSprite.cpp
2022-12-12 10:55:02 -08:00

91 lines
2.3 KiB
C++

// Copyright (c) 2022 Dominic Masters
//
// This software is released under the MIT License.
// https://opensource.org/licenses/MIT
#include "TiledSprite.hpp"
#include "scene/SceneItem.hpp"
using namespace Dawn;
TiledSprite::TiledSprite(SceneItem *item) : SceneItemComponent(item) {
}
glm::vec2 TiledSprite::getUV0() {
assertNotNull(this->tileset);
auto tile = this->tileset->getTile(tileIndex);
return glm::vec2(
(this->flipState & TILED_SPRITE_FLIP_X) == 0 ? tile.uv0.x : tile.uv1.x,
(this->flipState & TILED_SPRITE_FLIP_Y) == 0 ? tile.uv0.y : tile.uv1.y
);
}
glm::vec2 TiledSprite::getUV1() {
assertNotNull(this->tileset);
auto tile = this->tileset->getTile(tileIndex);
return glm::vec2(
(this->flipState & TILED_SPRITE_FLIP_X) == 0 ? tile.uv1.x : tile.uv0.x,
(this->flipState & TILED_SPRITE_FLIP_Y) == 0 ? tile.uv1.y : tile.uv0.y
);
}
void TiledSprite::setTileset(Tileset *tileset) {
assertNotNull(tileset);
this->tileset = tileset;
this->setTile(0);
}
void TiledSprite::setTilesetAndSize(TilesetGrid *tileset, glm::vec2 center) {
this->setTileset(tileset);
this->setSize(glm::vec2(tileset->divX, tileset->divY), center);
}
void TiledSprite::setTilesetAndSize(TilesetGrid *tileset) {
this->setTileset(tileset);
this->setSize(glm::vec2(tileset->divX, tileset->divY));
}
void TiledSprite::setTile(int32_t tileIndex) {
if(tileIndex == this->tileIndex) return;
this->tileIndex = tileIndex;
if(this->host != nullptr) {
QuadMesh::bufferCoordinates(
&this->host->mesh, this->getUV0(), this->getUV1(), 0
);
}
}
void TiledSprite::setSize(glm::vec2 size, glm::vec2 center) {
this->xy0 = -center;
this->xy1 = size - center;
if(this->host != nullptr) {
QuadMesh::bufferPositions(
&this->host->mesh, this->xy0, this->xy1, 0
);
}
}
void TiledSprite::setSize(glm::vec2 size) {
this->setSize(size, size / 2.0f);
}
std::vector<SceneItemComponent*> TiledSprite::getDependencies() {
this->host = this->item->getComponent<MeshHost>();
return std::vector<SceneItemComponent*>{
this->host
};
}
void TiledSprite::onStart() {
SceneItemComponent::onStart();
assertNotNull(this->host);
assertNotNull(this->tileset);
QuadMesh::initQuadMesh(&this->host->mesh,
this->xy0, this->getUV0(),
this->xy1, this->getUV1(),
0
);
}