Add whatever I was working on for the last month

1 files changed, 144 insertions, 0 deletions

diff --git a/game/shared/voxel_registry.hh b/game/shared/voxel_registry.hh
new file mode 100644
index 0000000..722cec1
--- /dev/null
+++ b/game/shared/voxel_registry.hh
@@ -0,0 +1,144 @@
+#ifndef SHARED_VOXEL_REGISTRY_HH
+#define SHARED_VOXEL_REGISTRY_HH 1
+#pragma once
+
+#include "shared/types.hh"
+
+enum class voxel_face : unsigned short {
+    CUBE_NORTH  = 0x0000,
+    CUBE_SOUTH  = 0x0001,
+    CUBE_EAST   = 0x0002,
+    CUBE_WEST   = 0x0003,
+    CUBE_TOP    = 0x0004,
+    CUBE_BOTTOM = 0x0005,
+    CUBE__NR    = 0x0006,
+
+    CROSS_NESW  = 0x0000,
+    CROSS_NWSE  = 0x0001,
+    CROSS__NR   = 0x0002,
+};
+
+enum class voxel_type : unsigned short {
+    CUBE        = 0x0000,
+    CROSS       = 0x0001, // TODO
+    MODEL       = 0x0002, // TODO
+};
+
+enum class voxel_facing : unsigned short {
+    NORTH       = 0x0000,
+    SOUTH       = 0x0001,
+    EAST        = 0x0002,
+    WEST        = 0x0003,
+    UP          = 0x0004,
+    DOWN        = 0x0005,
+    NESW        = 0x0006,
+    NWSE        = 0x0007,
+};
+
+enum class voxel_touch : unsigned short {
+    SOLID       = 0x0000, // The entity is stopped in its tracks
+    BOUNCE      = 0x0001, // The entity bounces back with some energy loss
+    SINK        = 0x0002, // The entity phases/sinks through the voxel
+    NOTHING     = 0xFFFF,
+};
+
+enum class voxel_surface : unsigned short {
+    DEFAULT     = 0x0000,
+    STONE       = 0x0001,
+    DIRT        = 0x0002,
+    GLASS       = 0x0003,
+    GRASS       = 0x0004,
+    GRAVEL      = 0x0005,
+    METAL       = 0x0006,
+    SAND        = 0x0007,
+    WOOD        = 0x0008,
+    SLOSH       = 0x0009,
+    COUNT       = 0x000A,
+    UNKNOWN     = 0xFFFF,
+};
+
+using voxel_vis = unsigned short;
+constexpr static voxel_vis VIS_NORTH    = 1 << static_cast<unsigned int>(voxel_facing::NORTH);
+constexpr static voxel_vis VIS_SOUTH    = 1 << static_cast<unsigned int>(voxel_facing::SOUTH);
+constexpr static voxel_vis VIS_EAST     = 1 << static_cast<unsigned int>(voxel_facing::EAST);
+constexpr static voxel_vis VIS_WEST     = 1 << static_cast<unsigned int>(voxel_facing::WEST);
+constexpr static voxel_vis VIS_UP       = 1 << static_cast<unsigned int>(voxel_facing::UP);
+constexpr static voxel_vis VIS_DOWN     = 1 << static_cast<unsigned int>(voxel_facing::DOWN);
+
+struct VoxelTexture final {
+    std::vector<std::string> paths;
+    std::size_t cached_offset; // client-side only
+    std::size_t cached_plane; // client-side only
+};
+
+struct VoxelInfo final {
+    std::string name;
+    voxel_type type;
+    bool animated;
+    bool blending;
+
+    std::vector<VoxelTexture> textures;
+
+    // Physics properties go here
+    // TODO: player_move friction modifiers
+    // that would make the voxel very sticky or
+    // very slippery to walk on
+    voxel_touch touch_type;
+    glm::fvec3 touch_values;
+    voxel_surface surface;
+
+    // Some voxel types might occupy multiple voxel_id
+    // values that reference to the exact same VoxelInfo
+    // structure; the actual numeric state is figured out by
+    // subtracting base_voxel from the checking voxel_id
+    voxel_id base_voxel;
+
+    // These will be set by item_registry
+    // and by default set to NULL_ITEM_ID
+    item_id item_pick;
+};
+
+class VoxelInfoBuilder final {
+public:
+    explicit VoxelInfoBuilder(const char *name, voxel_type type, bool animated, bool blending);
+    virtual ~VoxelInfoBuilder(void) = default;
+
+public:
+    VoxelInfoBuilder &add_texture_default(const char *texture);
+    VoxelInfoBuilder &add_texture(voxel_face face, const char *texture);
+    VoxelInfoBuilder &set_touch(voxel_touch type, const glm::fvec3 &values);
+    VoxelInfoBuilder &set_surface(voxel_surface surface);
+
+public:
+    voxel_id build(void) const;
+
+private:
+    VoxelTexture default_texture;
+    VoxelInfo prototype;
+};
+
+namespace voxel_registry
+{
+extern std::unordered_map<std::string, VoxelInfoBuilder> builders;
+extern std::unordered_map<std::string, voxel_id> names;
+extern std::vector<std::shared_ptr<VoxelInfo>> voxels;
+} // namespace voxel_registry
+
+namespace voxel_registry
+{
+VoxelInfoBuilder &construct(const char *name, voxel_type type, bool animated, bool blending);
+VoxelInfo *find(const char *name);
+VoxelInfo *find(const voxel_id voxel);
+} // namespace voxel_registry
+
+namespace voxel_registry
+{
+void purge(void);
+} // namespace voxel_registry
+
+namespace voxel_registry
+{
+std::uint64_t checksum(void);
+} // namespace voxel_registry
+
+#endif /* SHARED_VOXEL_REGISTRY_HH */