96 lines
2.3 KiB
C++
96 lines
2.3 KiB
C++
//////////////////////////////////////////////////////////////////////////
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//
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// DATAPACK
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//
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// Invocations contain a field 'datapack' which contains additional
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// data for the invocation, packed up in a serialized format. Executing
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// the invocation involves unpacking the datapack.
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//
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// The actual contents of the datapack depends on the type of invocation:
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//
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// KIND_INVALID:
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//
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// Nothing.
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//
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// KIND_CHOOSE:
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//
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// Name of a callback function, in plaintext. The function name
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// is sanity checked. First, we ensure that it begins with the
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// prefix "cb_." Then we regenerate the gui, and verify that the
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// gui has the specified callback as an option.
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//
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// KIND_ENGIO:
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//
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// First, a function name is read from the datapack. The function
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// name must be a lua function inside class "engio". The function
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// is called with arguments: actor, place, and then additional
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// arguments of simple dynamic type read from the datapack.
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//
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// KIND_LUA:
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//
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// A block of lua source code, in plaintext.
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//
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// KIND_FLUSH_PRINTS:
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//
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// Line number in ascii.
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//
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// KIND_TICK:
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//
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// Nothing.
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//
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// KIND_LUA_SOURCE:
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//
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// Packaged lua sourcecode. See drvutil::package_lua_source.
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//
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//////////////////////////////////////////////////////////////////////////
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#ifndef INVOCATION_HPP
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#define INVOCATION_HPP
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#include "wrap-string.hpp"
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#include "wrap-map.hpp"
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#include "wrap-deque.hpp"
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#include "streambuffer.hpp"
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class Invocation : public eng::opnew {
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public:
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enum Kind {
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KIND_INVALID,
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KIND_CHOOSE,
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KIND_ENGIO,
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KIND_LUA,
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KIND_FLUSH_PRINTS,
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KIND_TICK,
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KIND_LUA_SOURCE,
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};
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private:
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Kind kind_;
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int64_t actor_;
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int64_t place_;
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eng::string datapack_;
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public:
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Invocation();
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Invocation(Kind kind, int64_t actor, int64_t place, std::string_view datapack);
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bool valid() const { return kind_ != KIND_INVALID; }
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Kind kind() const { return kind_; }
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int64_t actor() const { return actor_; }
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int64_t place() const { return place_; }
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const eng::string &datapack() const { return datapack_; }
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void serialize(StreamBuffer *sb) const;
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void deserialize(StreamBuffer *sb);
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eng::string debug_string() const;
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};
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using UniqueInvocation = std::unique_ptr<Invocation>;
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class InvocationQueue : public eng::deque<Invocation> {
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};
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#endif // INVOCATION_HPP
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