63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
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#pragma once
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#include <bitset>
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#include <cstdint>
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// Source: https://gist.github.com/Lee-R/3839813
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constexpr std::uint32_t fnv1a_32(char const* s, std::size_t count)
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{
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return ((count ? fnv1a_32(s, count - 1) : 2166136261u) ^ s[count]) * 16777619u; // NOLINT (hicpp-signed-bitwise)
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}
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constexpr std::uint32_t operator "" _hash(char const* s, std::size_t count)
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{
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return fnv1a_32(s, count);
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}
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// ECS
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using Entity = std::uint32_t;
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const Entity MAX_ENTITIES = 5000;
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using ComponentType = std::uint8_t;
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const ComponentType MAX_COMPONENTS = 32;
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using Signature = std::bitset<MAX_COMPONENTS>;
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// Input
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enum class InputButtons
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{
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W,
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A,
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S,
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D,
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Q,
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E
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};
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// Events
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using EventId = std::uint32_t;
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using ParamId = std::uint32_t;
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#define METHOD_LISTENER(EventType, Listener) EventType, std::bind(&Listener, this, std::placeholders::_1)
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#define FUNCTION_LISTENER(EventType, Listener) EventType, std::bind(&Listener, std::placeholders::_1)
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// TODO: Make these easier to define and use (macro?)
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// TODO: Add some kind of enforcement/automation that a SetParam type and a GetParam type match
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namespace Events::Window {
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const EventId QUIT = "Events::Window::QUIT"_hash;
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const EventId RESIZED = "Events::Window::RESIZED"_hash;
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const EventId INPUT = "Events::Window::INPUT"_hash;
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}
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namespace Events::Window::Input {
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const ParamId INPUT = "Events::Window::Input::INPUT"_hash;
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}
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namespace Events::Window::Resized {
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const ParamId WIDTH = "Events::Window::Resized::WIDTH"_hash;
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const ParamId HEIGHT = "Events::Window::Resized::HEIGHT"_hash;
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}
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