48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
#include <cr.h>
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#include <entt/core/type_info.hpp>
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#include <entt/entity/registry.hpp>
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#include "type_context.h"
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#include "types.h"
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struct ctx {
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inline static type_context *ref;
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};
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template<typename Type>
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struct entt::type_index<Type> {
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[[nodiscard]] static id_type value() ENTT_NOEXCEPT {
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static const entt::id_type value = ctx::ref->value(entt::type_hash<Type>::value());
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return value;
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}
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};
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CR_EXPORT int cr_main(cr_plugin *ctx, cr_op operation) {
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switch (operation) {
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case CR_STEP:
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if(!ctx::ref) {
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ctx::ref = static_cast<type_context *>(ctx->userdata);
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} else {
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// forces things to break
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auto ®istry = *static_cast<entt::registry *>(ctx->userdata);
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registry.prepare<velocity>();
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const auto view = registry.view<position>();
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registry.insert(view.begin(), view.end(), velocity{1., 1.});
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registry.view<position, velocity>().each([](position &pos, velocity &vel) {
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pos.x += static_cast<int>(16 * vel.dx);
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pos.y += static_cast<int>(16 * vel.dy);
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});
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}
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break;
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case CR_CLOSE:
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case CR_LOAD:
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case CR_UNLOAD:
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// nothing to do here, this is only a test.
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break;
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}
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return 0;
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}
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