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58 lines
2.5 KiB
C++
58 lines
2.5 KiB
C++
#pragma once
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#include "object_placements.h"
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#include <array>
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#include <cstddef>
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#include <cstring>
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#include <optional>
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#include <utility>
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namespace dingosdk::profile_runtime {
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// Private correlation IDs must never enter a native message. Its source enum
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// is encoded in three bits and accepts only 0..4 in the native serializer.
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struct PendingPlacementCreate {
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profile::PlacedObject object;
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std::uint32_t item{}, token{}, generation{};
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};
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class PlacementCreateQueue {
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std::optional<PendingPlacementCreate> pending_;
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public:
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bool push(const profile::PlacedObject& object, std::uint32_t item,
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std::uint32_t token, std::uint32_t generation) {
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if (pending_ || !token || !generation || !profile::valid_placed_object(object)) return false;
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pending_ = PendingPlacementCreate{object, item, token, generation};
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return true;
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}
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void clear() { pending_.reset(); }
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bool empty() const { return !pending_; }
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std::optional<PendingPlacementCreate> take(std::uint32_t generation) {
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auto result = std::exchange(pending_, {});
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if (result && result->generation != generation) result.reset();
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return result;
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}
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};
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// Same recipe produced by the native create-message handler.
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// The native server create routine copies it synchronously, including callbacks.
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struct alignas(16) PlacementCreateRecipe {
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std::array<std::uint32_t, 4> header{0, 0, 1, 1};
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std::array<std::uint32_t, 20> words{};
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// This is the native simulation owner, not the ReSkate/Steam owner. The
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// latter lives in network_objects_detail::Key and must not enter this ABI.
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PlacementCreateRecipe(const PendingPlacementCreate& request, std::uint64_t native_owner) {
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words[0] = request.item;
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// The native free-roam drop uses a global value of 127 for normal drops.
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// This is message +0x55 / BuildKitComponent +0x3a, not the separate
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// request-entry byte at +0x48. 255 selects a different park context.
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words[2] = 0x7f;
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std::memcpy(words.data() + 4, &native_owner, sizeof(native_owner));
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std::memcpy(words.data() + 8, request.object.position.data(), sizeof(float) * 3);
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words[11] = 0x3f800000; // homogeneous position w = 1
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std::memcpy(words.data() + 12, request.object.rotation.data(), sizeof(float) * 4);
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words[16] = 1; // confirmed object
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words[17] = 3; // retail scripted-create source
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}
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};
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static_assert(offsetof(PlacementCreateRecipe, words) == 16 && sizeof(PlacementCreateRecipe) == 96);
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}
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