summaryrefslogtreecommitdiffhomepage
path: root/src/chunk.hpp
blob: 6ba8ef5ed0db0120066786df7201122830e79fdc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
#pragma once
#include "tile.hpp"
#include "tile-iterator.hpp"
#include "scenery.hpp"
#include <type_traits>
#include <array>
#include <memory>
#include <Magnum/GL/Mesh.h>
#include "RTree.h"

namespace floormat {

struct anim_atlas;

enum class collision : std::uint8_t {
    view, shoot, move,
};

enum class collision_type : std::uint8_t {
    none, entity, scenery, geometry,
};

struct collision_data final {
    std::uint64_t tag       : 2;
    std::uint64_t data      : 62;
};

struct chunk final
{
    friend struct tile_ref;

    tile_ref operator[](std::size_t idx) noexcept;
    tile_proto operator[](std::size_t idx) const noexcept;
    tile_ref operator[](local_coords xy) noexcept;
    tile_proto operator[](local_coords xy) const noexcept;

    using iterator = tile_iterator;
    using const_iterator = tile_const_iterator;

    iterator begin() noexcept;
    iterator end() noexcept;
    const_iterator cbegin() const noexcept;
    const_iterator cend() const noexcept;
    const_iterator begin() const noexcept;
    const_iterator end() const noexcept;

    bool empty(bool force = false) const noexcept;

    chunk() noexcept;
    ~chunk() noexcept;
    chunk(const chunk&) = delete;
    chunk& operator=(const chunk&) = delete;
    chunk(chunk&&) noexcept;
    chunk& operator=(chunk&&) noexcept;

    void mark_ground_modified() noexcept;
    void mark_walls_modified() noexcept;
    void mark_scenery_modified() noexcept;
    void mark_modified() noexcept;

    struct ground_mesh_tuple final {
        GL::Mesh& mesh;
        const ArrayView<const std::uint8_t> ids;
        const std::size_t size;
    };
    struct wall_mesh_tuple final {
        GL::Mesh& mesh;
        const ArrayView<const std::uint16_t> ids;
        const std::size_t size;
    };

    struct scenery_mesh_tuple final {
        GL::Mesh& mesh;
        const ArrayView<const std::uint8_t> ids;
        const std::size_t size;
    };

    ground_mesh_tuple ensure_ground_mesh() noexcept;
    tile_atlas* ground_atlas_at(std::size_t i) const noexcept;

    wall_mesh_tuple ensure_wall_mesh() noexcept;
    tile_atlas* wall_atlas_at(std::size_t i) const noexcept;

    scenery_mesh_tuple ensure_scenery_mesh() noexcept;
    anim_atlas* scenery_atlas_at(std::size_t i) const noexcept;

    void ensure_passability() noexcept;

    using RTree = ::RTree<std::uint64_t, float, 2, float>;

    const RTree* rtree() const noexcept;
    RTree* rtree() noexcept;

private:
    std::array<std::shared_ptr<tile_atlas>, TILE_COUNT> _ground_atlases;
    std::array<std::uint8_t, TILE_COUNT> ground_indexes = {};
    std::array<variant_t, TILE_COUNT> _ground_variants = {};
    std::array<std::shared_ptr<tile_atlas>, TILE_COUNT*2> _wall_atlases;
    std::array<std::uint16_t, TILE_COUNT*2> wall_indexes = {};
    std::array<variant_t, TILE_COUNT*2> _wall_variants = {};
    std::array<std::shared_ptr<anim_atlas>, TILE_COUNT> _scenery_atlases;
    std::array<std::uint8_t, TILE_COUNT> scenery_indexes = {};
    std::array<scenery, TILE_COUNT> _scenery_variants = {};

    GL::Mesh ground_mesh{NoCreate}, wall_mesh{NoCreate}, scenery_mesh{NoCreate};

    RTree _rtree;

    mutable bool _maybe_empty      : 1 = true,
                 _ground_modified  : 1 = true,
                 _walls_modified   : 1 = true,
                 _scenery_modified : 1 = true,
                 _pass_modified    : 1 = true;
};

} // namespace floormat