Block.hpp

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#pragma once
 
#include "define.hpp"
#include "HitBox.hpp"
 
#include <string>
#include <vector>
 
typedef uint64_t BlockProperties;
typedef uint32_t TextureID;
 
// Block properties
#define BLOCK_PROPERTY_NONE     0U      // default
#define BLOCK_PROPERTY_SOLID    1U      // solid block (can be walked on)
#define BLOCK_PROPERTY_OPAQUE   1U << 1 // opaque block (cannot be seen through)
#define BLOCK_PROPERTY_CUBE     1U << 2 // cube block (is a standard cube shape)
#define BLOCK_PROPERTY_LIGHT    1U << 3 // light block (emits light)
#define BLOCK_PROPERTY_FLUID    1U << 4 // fluid block (flows)
 
// Block faces coresponding to the texture array
#define BLOCK_FACE_TOP      0
#define BLOCK_FACE_BOTTOM   1
#define BLOCK_FACE_RIGHT    2
#define BLOCK_FACE_LEFT     3
#define BLOCK_FACE_FRONT    4
#define BLOCK_FACE_BACK     5
class BlockInfo
{
 
public:
 
    enum class Type : uint16_t
    {
        Air,
        Grass,
        Dirt,
        Stone,
        Sand,
        Water,
        Glass,
        Light,
        Wood,
        Leaves,
        None
 
    } const id = Type::None;
 
    const TextureID texture[6];
    const BlockProperties properties;
    const HitBox hitbox;
    const uint8_t emit_light; // light level emitted by the block
    const uint8_t absorb_light; // light level absorbed by the block
 
 
    static inline const std::vector<std::string> texture_names = {
        "assets/textures/block/grass_top.png", // 0
        "assets/textures/block/grass_top.png", // 1
        "assets/textures/block/grass_side.png", // 2
        "assets/textures/block/dirt.png", // 3
        "assets/textures/block/stone.png", // 4
        "assets/textures/block/water.png", // 5
        "assets/textures/block/glass_clear.png", // 6
        "assets/textures/block/light.png", // 7
        "assets/textures/block/wood_top.png", // 8
        "assets/textures/block/wood.png", // 9
        "assets/textures/block/oak_leaves.png", // 10
        "assets/textures/block/sand.png" //11
        // "assets/textures/block/debug/white.png",
        // "assets/textures/block/debug/right.png",
        // "assets/textures/block/debug/left.png",
        // "assets/textures/block/debug/front.png",
        // "assets/textures/block/debug/top.png",
        // "assets/textures/block/debug/back_bottom.png",
    };
 
};
 
typedef BlockInfo::Type BlockType;
class BlocksInfo
{
 
public:
 
    static BlocksInfo & getInstance()
    {
        static BlocksInfo instance;
        return instance;
    }
 
    const BlockInfo & get(const BlockInfo::Type id)
    {
        return m_infos[static_cast<size_t>(id)];
    }
 
    bool hasProperty(const BlockInfo::Type id, const BlockProperties properties)
    {
        return (get(id).properties & properties) == properties;
    }
 
    bool hasProperty(const BlockInfo::Type id, const BlockProperties properties, const BlockProperties not_properties)
    {
        return (get(id).properties & (properties | not_properties)) == properties;
    }
 
private:
 
    std::vector<BlockInfo> m_infos;
 
    BlocksInfo();
 
};
 
extern BlocksInfo & g_blocks_info;