texture_override.h

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// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2020 Hugues Ross <hugues.ross@gmail.com>
 
#pragma once
 
#include "irrlichttypes.h"
#include <string>
#include <vector>
 
typedef u32 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,
        OVERLAY_TOP = 1 << 14,
        OVERLAY_BOTTOM = 1 << 15,
        OVERLAY_RIGHT = 1 << 16,
        OVERLAY_LEFT = 1 << 17,
        OVERLAY_FRONT = 1 << 18,
        OVERLAY_BACK = 1 << 19,
 
        SIDES = LEFT | RIGHT | FRONT | BACK,
        ALL_FACES = TOP | BOTTOM | SIDES,
        ALL_SPECIAL = SPECIAL_1 | SPECIAL_2 | SPECIAL_3 | SPECIAL_4 | SPECIAL_5 | SPECIAL_6,
        OVERLAY_SIDES = OVERLAY_LEFT | OVERLAY_RIGHT | OVERLAY_FRONT | OVERLAY_BACK,
        OVERLAY_ALL   = OVERLAY_TOP | OVERLAY_BOTTOM | OVERLAY_SIDES,
        NODE_TARGETS = ALL_FACES | ALL_SPECIAL | OVERLAY_ALL,
        ITEM_TARGETS = INVENTORY | WIELD,
};
 
struct TextureOverride
{
        std::string id;
        std::string texture;
        override_t target = 0;
        u8 world_scale = 0;
 
        // 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(const std::string &filepath);

        std::vector<TextureOverride> getItemTextureOverrides() const;

        std::vector<TextureOverride> getNodeTileOverrides() const;
 
private:
        std::vector<TextureOverride> m_overrides;
};