diff --git a/entities.c b/entities.c
index e772527..5acb14c 100644
--- a/entities.c
+++ b/entities.c
@@ -11,12 +11,14 @@
 #include "systems.h"
 
 VECTOR_SOURCE(su32_t, uint32_t)
+VECTOR_SOURCE(vf32_t, float)
 HASHMAP_SOURCE(mu32u32_t, uint32_t, uint32_t, hashI)
 
 void ecs_init(entity_data* d, uint32_t n, ...){
 	d->entities = 0;
 	d->size = 0;
 	d->stack = su32_tInit();
+	d->signals = vf32_tInit();
 	va_list v;
 	va_start(v, n);
 	uint32_t i, offset = 0;
@@ -94,6 +96,7 @@ void ecs_clear(entity_data* d){
 
 void ecs_deinit(entity_data* d){
 	su32_tFree(&d->stack);
+	vf32_tFree(&d->signals);
 	free(d->masks);
 	free(d->data);
 	free(d->flags);
@@ -254,3 +257,28 @@ uint32_t entity_furthest_n(entity_data* d, v2 pos, uint8_t exact, uint32_t n, ui
 void entity_add_flag(entity_data* d, uint32_t eid, uint32_t flag){
 	d->flags[eid] = bit_on(d->flags[eid], flag);
 }
+
+void entity_create_signal(entity_data* d, uint32_t signal){
+	if (signal != d->signals.size) return;
+	vf32_tPushBack(&d->signals, 0);
+}
+
+void entity_set_signal(entity_data* d, uint32_t signal, float value){
+	if (signal >= d->signals.size) return;
+	d->signals.data[signal] = value;
+}
+
+float entity_signal_check(entity_data* d, uint32_t signal){
+	if (signal >= d->signals.size) return 0;
+	return d->signals.data[signal];
+}
+
+float entity_receive_signal(entity_data* d, uint32_t signal){
+	if (signal >= d->signals.size) return 0;
+	float v = d->signals.data[signal];
+	if (v!=0){
+		d->signals.data[signal] = 0;
+	}
+	return v;
+}
+
diff --git a/entities.h b/entities.h
index f9846e7..248e1a9 100644
--- a/entities.h
+++ b/entities.h
@@ -8,6 +8,7 @@
 #define COMPONENT_LIMIT 64
 
 VECTOR(su32_t, uint32_t)
+VECTOR(vf32_t, float)
 HASHMAP(mu32u32_t, uint32_t, uint32_t)
 
 struct v2;
@@ -21,6 +22,7 @@ typedef struct entity_data{
 	void* data;
 	uint32_t entities;
 	su32_t stack;
+	vf32_t signals;
 	uint64_t* masks;
 	uint64_t* flags;
 	uint16_t* layers;
@@ -57,4 +59,9 @@ void entity_destroy(entity_data* d, uint32_t eid);
 
 uint8_t entity_exact_mask_logic(entity_data* d, uint32_t eid, uint8_t exact, uint64_t reference, uint64_t candidate);
 
+void entity_create_signal(entity_data* d, uint32_t signal);
+void entity_set_signal(entity_data* d, uint32_t signal, float value);
+float entity_signal_check(entity_data* d, uint32_t signal);
+float entity_receive_signal(entity_data* d, uint32_t signal);
+
 #endif