35 lines
939 B
C
35 lines
939 B
C
#include <basics.h>
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#include <stdio.h>
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typedef struct {
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float x, y;
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} Position;
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int main(int argc, char *argv[]) {
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ecs_world_t *ecs = ecs_init_w_args(argc, argv);
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// Register component as usual
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ECS_COMPONENT(ecs, Position);
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// Add reflection data to component
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ecs_struct(ecs, {
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.entity = ecs_id(Position), // Make sure to use existing id
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.members = {
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{ .name = "x", .type = ecs_id(ecs_f32_t) }, // builtin float type
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{ .name = "y", .type = ecs_id(ecs_f32_t) }
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}
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});
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// Create entity with Position as usual
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ecs_entity_t ent = ecs_new_id(ecs);
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ecs_set(ecs, ent, Position, {10, 20});
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// Convert position component to flecs expression string
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const Position *ptr = ecs_get(ecs, ent, Position);
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char *str = ecs_ptr_to_expr(ecs, ecs_id(Position), ptr);
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printf("%s\n", str); // {x: 10, y: 20}
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ecs_os_free(str);
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ecs_fini(ecs);
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}
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