summaryrefslogtreecommitdiffhomepage
path: root/src/chunk.cpp
blob: a3c03b81ce188a462a847f1197e9bc1dab5fdcd2 (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
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
#include "chunk.hpp"
#include "object.hpp"
#include "world.hpp"
#include "tile-iterator.hpp"
#include "RTree.h"
#include <algorithm>
#include <Corrade/Containers/GrowableArray.h>
#include <Magnum/GL/Context.h>

namespace floormat {

namespace {

constexpr auto object_id_lessp = [](const auto& a, const auto& b) { return a->id < b->id; };

size_t _reload_no_ = 0; // NOLINT

[[maybe_unused]]
bool is_log_quiet()
{
    using GLCCF = GL::Implementation::ContextConfigurationFlag;
    auto flags = GL::Context::current().configurationFlags();
    return !!(flags & GLCCF::QuietLog);
}

bool is_log_verbose()
{
    using GLCCF = GL::Implementation::ContextConfigurationFlag;
    auto flags = GL::Context::current().configurationFlags();
    return !!(flags & GLCCF::VerboseLog);
}

[[maybe_unused]]
bool is_log_standard()
{
    using GLCCF = GL::Implementation::ContextConfigurationFlag;
    auto flags = GL::Context::current().configurationFlags();
    return !(flags & (GLCCF::VerboseLog|GLCCF::QuietLog));
}

} // namespace

bool chunk::empty(bool force) const noexcept
{
    if (!force && !_maybe_empty) [[likely]]
        return false;
    for (auto i = 0uz; i < TILE_COUNT; i++)
        if (!_objects.isEmpty() ||
            _ground && _ground->atlases[i] ||
            _walls && (_walls->atlases[i*2+0] || _walls->atlases[i*2+1]))
            return _maybe_empty = false;
    if (!_objects.isEmpty())
        return false;
    return true;
}

ground_atlas* chunk::ground_atlas_at(size_t i) const noexcept { return _ground ? _ground->atlases[i].get() : nullptr; }

tile_ref chunk::operator[](size_t idx) noexcept { return { *this, uint8_t(idx) }; }
tile_proto chunk::operator[](size_t idx) const noexcept { return tile_proto(tile_ref { *const_cast<chunk*>(this), uint8_t(idx) }); }
tile_ref chunk::operator[](local_coords xy) noexcept { return operator[](xy.to_index()); }
tile_proto chunk::operator[](local_coords xy) const noexcept { return operator[](xy.to_index()); }

chunk_coords_ chunk::coord() const noexcept { return _coord; }

tile_ref chunk::at_offset(local_coords pos, Vector2i off)
{
    const auto coord = global_coords{_coord, pos};
    const auto coord2 = coord + off;
    if (coord.chunk() == coord2.chunk()) [[likely]]
        return operator[](coord2.local());
    else
        return (*_world)[coord2].t;
}

Optional<tile_ref> chunk::at_offset_(local_coords pos, Vector2i off)
{
    const auto coord = global_coords{_coord, pos};
    const auto coord2 = coord + off;
    if (coord.chunk() == coord2.chunk()) [[likely]]
        return operator[](coord2.local());
    else
    {
        if (auto* ch = _world->at(coord2.chunk3()))
            return (*ch)[coord2.local()];
        else
            return NullOpt;
    }
}

tile_ref chunk::at_offset(tile_ref r, Vector2i off) { return at_offset(local_coords{r.index()}, off); }
Optional<tile_ref> chunk::at_offset_(tile_ref r, Vector2i off) { return at_offset_(local_coords{r.index()}, off); }

auto chunk::begin() noexcept -> iterator { return iterator { *this, 0 }; }
auto chunk::end() noexcept -> iterator { return iterator { *this, TILE_COUNT }; }
auto chunk::cbegin() const noexcept -> const_iterator { return const_iterator { *this, 0 }; }
auto chunk::cend() const noexcept -> const_iterator { return const_iterator { *this, TILE_COUNT }; }
auto chunk::begin() const noexcept -> const_iterator { return cbegin(); }
auto chunk::end() const noexcept -> const_iterator { return cend(); }

void chunk::mark_ground_modified() noexcept
{
    if (!_ground_modified && is_log_verbose()) [[unlikely]]
        fm_debug("ground reload %zu", ++_reload_no_);
    _ground_modified = true;
    mark_passability_modified();
}

void chunk::mark_walls_modified() noexcept
{
    if (!_walls_modified && is_log_verbose()) [[unlikely]]
        fm_debug("wall reload %zu", ++_reload_no_);
    _walls_modified = true;
    mark_passability_modified();
}

void chunk::mark_scenery_modified() noexcept
{
    if (!_scenery_modified && is_log_verbose()) [[unlikely]]
        fm_debug("scenery reload %zu", ++_reload_no_);
    _scenery_modified = true;
}

void chunk::mark_passability_modified() noexcept
{
    if (!_pass_modified && is_log_verbose()) [[unlikely]]
        fm_debug("pass reload %zu", ++_reload_no_);
    _pass_modified = true;
}

bool chunk::is_passability_modified() const noexcept { return _pass_modified; }
bool chunk::is_scenery_modified() const noexcept { return _scenery_modified; }

void chunk::mark_modified() noexcept
{
    mark_ground_modified();
    mark_walls_modified();
    mark_scenery_modified();
    mark_passability_modified();
}

chunk::chunk(class world& w, chunk_coords_ ch) noexcept :
    _world{&w},
    _rtree{InPlaceInit},
    _coord{ch}
{
}

chunk::~chunk() noexcept
{
    _teardown = true;
    arrayResize(_objects, 0);
    arrayShrink(_objects);
    _rtree->RemoveAll();
}

chunk::chunk(chunk&&) noexcept = default;
chunk& chunk::operator=(chunk&&) noexcept = default;

void chunk::add_object_unsorted(const std::shared_ptr<object>& e)
{
    _objects_sorted = false;
    if (!e->is_dynamic())
        mark_scenery_modified();
    if (bbox bb; _bbox_for_scenery(*e, bb))
        _add_bbox(bb);
    arrayReserve(_objects, 8);
    arrayAppend(_objects, e);
}

void chunk::sort_objects()
{
    if (_objects_sorted)
        return;
    _objects_sorted = true;
    mark_scenery_modified();
    std::sort(_objects.begin(), _objects.end(), [](const auto& a, const auto& b) {
        return a->id < b->id;
    });
}

void chunk::add_object(const std::shared_ptr<object>& e)
{
    fm_assert(_objects_sorted);
    if (!e->is_dynamic())
        mark_scenery_modified();
    if (bbox bb; _bbox_for_scenery(*e, bb))
        _add_bbox(bb);
    arrayReserve(_objects, 8);
    auto& es = _objects;
    auto it = std::lower_bound(es.cbegin(), es.cend(), e, object_id_lessp);
    arrayInsert(es, (size_t)std::distance(es.cbegin(), it), e);
}

void chunk::remove_object(size_t i)
{
    fm_assert(_objects_sorted);
    auto& es = _objects;
    fm_debug_assert(i < es.size());
    const auto e = es[i];
    if (!e->is_dynamic())
        mark_scenery_modified();
    if (bbox bb; _bbox_for_scenery(*e, bb))
        _remove_bbox(bb);
    arrayRemove(es, i);
}

ArrayView<const std::shared_ptr<object>> chunk::objects() const
{
    fm_assert(_objects_sorted);
    return _objects;
}

} // namespace floormat