texture_override.h

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/*
Minetest
Copyright (C) 2020 Hugues Ross <hugues.ross@gmail.com>
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
 
#pragma once
 
#include "irrlichttypes.h"
#include <string>
#include <vector>
 
typedef u16 override_t;
 
enum class OverrideTarget : override_t
{
    INVALID = 0,
    TOP = 1 << 0,
    BOTTOM = 1 << 1,
    LEFT = 1 << 2,
    RIGHT = 1 << 3,
    FRONT = 1 << 4,
    BACK = 1 << 5,
    INVENTORY = 1 << 6,
    WIELD = 1 << 7,
    SPECIAL_1 = 1 << 8,
    SPECIAL_2 = 1 << 9,
    SPECIAL_3 = 1 << 10,
    SPECIAL_4 = 1 << 11,
    SPECIAL_5 = 1 << 12,
    SPECIAL_6 = 1 << 13,
 
    // clang-format off
    SIDES = LEFT | RIGHT | FRONT | BACK,
    ALL_FACES = TOP | BOTTOM | SIDES,
    ALL_SPECIAL = SPECIAL_1 | SPECIAL_2 | SPECIAL_3 | SPECIAL_4 | SPECIAL_5 | SPECIAL_6,
    NODE_TARGETS = ALL_FACES | ALL_SPECIAL,
    ITEM_TARGETS = INVENTORY | WIELD,
    // clang-format on
};
 
struct TextureOverride
{
    std::string id;
    std::string texture;
    override_t target;
 
    // Helper function for checking if an OverrideTarget is found in
    // a TextureOverride without casting
    inline bool hasTarget(OverrideTarget overrideTarget) const
    {
        return (target & static_cast<override_t>(overrideTarget)) != 0;
    }
};
 
class TextureOverrideSource
{
public:
    TextureOverrideSource(std::string filepath);
 
    std::vector<TextureOverride> getItemTextureOverrides();
 
    std::vector<TextureOverride> getNodeTileOverrides();
 
private:
    std::vector<TextureOverride> m_overrides;
};