diff options
Diffstat (limited to 'src/AssetManager.cpp')
| -rw-r--r-- | src/AssetManager.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/AssetManager.cpp b/src/AssetManager.cpp new file mode 100644 index 0000000..351a118 --- /dev/null +++ b/src/AssetManager.cpp @@ -0,0 +1,185 @@ +#include <fstream> +#include "AssetManager.hpp" + +//const fs::path pathToAssets = "./assets/"; +//const fs::path pathToAssetsList = "./items.json"; +//const fs::path pathToTextureIndex = "./textures.json"; +const std::string pathToAssetsList = "./items.json"; +const std::string pathToTextureIndex = "./textures.json"; + +AssetManager::AssetManager() { + LoadIds(); + LoadTextureResources(); +} + +void AssetManager::LoadIds() { + std::ifstream in(pathToAssetsList); + nlohmann::json index; + in >> index; + for (auto &it:index) { + int id = it["type"].get<int>(); + int state = it["meta"].get<int>(); + std::string blockName = it["text_type"].get<std::string>(); + assetIds[blockName] = Block(id, state); + } + LOG(INFO) << "Loaded " << assetIds.size() << " ids"; +} + +AssetManager::~AssetManager() { + delete textureAtlas; +} + +//TODO: This function must be replaced with runtime texture atlas generating +void AssetManager::LoadTextureResources() { + std::ifstream in(pathToTextureIndex); + nlohmann::json index; + in >> index; + std::string filename = index["meta"]["image"].get<std::string>(); + float textureWidth = index["meta"]["size"]["w"].get<int>(); + float textureHeight = index["meta"]["size"]["h"].get<int>(); + for (auto &it:index["frames"]) { + auto frame = it["frame"]; + TextureCoordinates coord; + coord.x = frame["x"].get<int>() / textureWidth; + coord.y = frame["y"].get<int>() / textureHeight; + coord.w = frame["w"].get<int>() / textureWidth; + coord.h = frame["h"].get<int>() / textureHeight; + std::string assetName = it["filename"].get<std::string>(); + assetName.insert(0, "minecraft/textures/"); + assetName.erase(assetName.length() - 4); + assetTextures[assetName] = coord; + } + + textureAtlas = new Texture(filename); + LOG(INFO) << "Texture atlas id is " << textureAtlas->texture; +} + +TextureCoordinates AssetManager::GetTextureByAssetName(std::string AssetName) { + if (assetTextures.find(AssetName) != assetTextures.end()) + return assetTextures[AssetName]; + else + return TextureCoordinates{-1, -1, -1, -1}; +} + +std::string AssetManager::GetTextureAssetNameByBlockId(BlockTextureId block) { + //Block sides: 0 - bottom, 1 - top, 2 - north, 3 - south, 4 - west, 5 - east 6 - every side + const std::map<BlockTextureId, std::string> lookupTable = { + {BlockTextureId(0, 0), "minecraft/textures/blocks/air"}, + {BlockTextureId(1, 0), "minecraft/textures/blocks/stone"}, + {BlockTextureId(1, 1), "minecraft/textures/blocks/stone_granite"}, + + {BlockTextureId(2, 0, 0), "minecraft/textures/blocks/dirt"}, + {BlockTextureId(2, 0, 1), "minecraft/textures/blocks/grass_top"}, + {BlockTextureId(2, 0, 2), "minecraft/textures/blocks/grass_side"}, + {BlockTextureId(2, 0, 3), "minecraft/textures/blocks/grass_side"}, + {BlockTextureId(2, 0, 4), "minecraft/textures/blocks/grass_side"}, + {BlockTextureId(2, 0, 5), "minecraft/textures/blocks/grass_side"}, + + {BlockTextureId(3, 0), "minecraft/textures/blocks/dirt"}, + {BlockTextureId(4, 0), "minecraft/textures/blocks/cobblestone"}, + {BlockTextureId(5, 0), "minecraft/textures/blocks/planks"}, + + {BlockTextureId(7, 0), "minecraft/textures/blocks/bedrock"}, + + {BlockTextureId(17, 0, 0), "minecraft/textures/blocks/log_oak_top"}, + {BlockTextureId(17, 0, 1), "minecraft/textures/blocks/log_oak_top"}, + {BlockTextureId(17, 0, 2), "minecraft/textures/blocks/log_oak"}, + {BlockTextureId(17, 0, 3), "minecraft/textures/blocks/log_oak"}, + {BlockTextureId(17, 0, 4), "minecraft/textures/blocks/log_oak"}, + {BlockTextureId(17, 0, 5), "minecraft/textures/blocks/log_oak"}, + + {BlockTextureId(17, 1, 0), "minecraft/textures/blocks/log_spruce_top"}, + {BlockTextureId(17, 1, 1), "minecraft/textures/blocks/log_spruce_top"}, + {BlockTextureId(17, 1, 2), "minecraft/textures/blocks/log_spruce"}, + {BlockTextureId(17, 1, 3), "minecraft/textures/blocks/log_spruce"}, + {BlockTextureId(17, 1, 4), "minecraft/textures/blocks/log_spruce"}, + {BlockTextureId(17, 1, 5), "minecraft/textures/blocks/log_spruce"}, + + {BlockTextureId(17, 2, 0), "minecraft/textures/blocks/log_birch_top"}, + {BlockTextureId(17, 2, 1), "minecraft/textures/blocks/log_birch_top"}, + {BlockTextureId(17, 2, 2), "minecraft/textures/blocks/log_birch"}, + {BlockTextureId(17, 2, 3), "minecraft/textures/blocks/log_birch"}, + {BlockTextureId(17, 2, 4), "minecraft/textures/blocks/log_birch"}, + {BlockTextureId(17, 2, 5), "minecraft/textures/blocks/log_birch"}, + + {BlockTextureId(17, 3, 0), "minecraft/textures/blocks/log_jungle_top"}, + {BlockTextureId(17, 3, 1), "minecraft/textures/blocks/log_jungle_top"}, + {BlockTextureId(17, 3, 2), "minecraft/textures/blocks/log_jungle"}, + {BlockTextureId(17, 3, 3), "minecraft/textures/blocks/log_jungle"}, + {BlockTextureId(17, 3, 4), "minecraft/textures/blocks/log_jungle"}, + {BlockTextureId(17, 3, 5), "minecraft/textures/blocks/log_jungle"}, + + {BlockTextureId(18, 0), "minecraft/textures/blocks/leaves_oak"}, + {BlockTextureId(18, 1), "minecraft/textures/blocks/leaves_spruce"}, + {BlockTextureId(18, 2), "minecraft/textures/blocks/leaves_birch"}, + {BlockTextureId(18, 3), "minecraft/textures/blocks/leaves_jungle"}, + + {BlockTextureId(61, 0, 0), "minecraft/textures/blocks/furnace_side"}, + {BlockTextureId(61, 0, 1), "minecraft/textures/blocks/furnace_top"}, + {BlockTextureId(61, 0, 2), "minecraft/textures/blocks/furnace_front_off"}, + {BlockTextureId(61, 0, 3), "minecraft/textures/blocks/furnace_side"}, + {BlockTextureId(61, 0, 4), "minecraft/textures/blocks/furnace_side"}, + {BlockTextureId(61, 0, 5), "minecraft/textures/blocks/furnace_side"}, + + {BlockTextureId(62, 0, 0), "minecraft/textures/blocks/furnace_side"}, + {BlockTextureId(62, 0, 1), "minecraft/textures/blocks/furnace_top"}, + {BlockTextureId(62, 0, 2), "minecraft/textures/blocks/furnace_front_on"}, + {BlockTextureId(62, 0, 3), "minecraft/textures/blocks/furnace_side"}, + {BlockTextureId(62, 0, 4), "minecraft/textures/blocks/furnace_side"}, + {BlockTextureId(62, 0, 5), "minecraft/textures/blocks/furnace_side"}, + + + {BlockTextureId(31, 0), "minecraft/textures/blocks/deadbush"}, + {BlockTextureId(31, 1), "minecraft/textures/blocks/tallgrass"}, + {BlockTextureId(31, 2), "minecraft/textures/blocks/fern"}, + }; + auto ret = lookupTable.find(block); + if (ret == lookupTable.end()) + return ""; + else + return ret->second; +} + +GLuint AssetManager::GetTextureAtlas() { + return textureAtlas->texture; +} + +TextureCoordinates AssetManager::GetTextureByBlock(BlockTextureId block) { + std::string assetName = this->GetTextureAssetNameByBlockId(block); + return this->GetTextureByAssetName(assetName); +} + +const std::map<BlockTextureId, glm::vec4> &AssetManager::GetTextureAtlasIndexes() { + if (!textureAtlasIndexes.empty()) + return textureAtlasIndexes; + + LOG(INFO) << "Initializing texture atlas..."; + for (int id = 1; id < 128; id++) { + for (int state = 0; state < 16; state++) { + BlockTextureId blockTextureId(id, state, 6); + if (!this->GetTextureByBlock(blockTextureId) && + !this->GetTextureByBlock(BlockTextureId(id, state, 0))) { + continue; + } + if (this->GetTextureByBlock(blockTextureId)) { + for (int i = 0; i < 6; i++) { + TextureCoordinates tc = this->GetTextureByBlock(BlockTextureId(id, state, 6)); + textureAtlasIndexes[BlockTextureId(id, state, i)] = glm::vec4(tc.x, tc.y, tc.w, tc.h); + } + } else { + for (int i = 0; i < 6; i++) { + TextureCoordinates tc = this->GetTextureByBlock(BlockTextureId(id, state, i)); + textureAtlasIndexes[BlockTextureId(id, state, i)] = glm::vec4(tc.x, tc.y, tc.w, tc.h); + } + } + } + } + LOG(INFO) << "Created " << textureAtlasIndexes.size() << " texture indexes"; + + return textureAtlasIndexes; +} + +AssetManager &AssetManager::Instance() { + static AssetManager assetManager; + return assetManager; +} |