#include <assert.h>

struct Net;
struct Gate;

struct Gate {
	int* in_queue;
	int* port_states;
	int** port_net_state;
	int** port_net_state_num;
	int** port_net_in_queue;
	struct Net** port_nets_c;
	int objref;
};
struct Net {
	int* state;
	int* state_num;
	int* in_queue;
	int* update_tick;
	int* num_gates_update;
	struct Gate** gates_update_c;
	int id;
};


void sim_set_data(struct Net** net_queue, int* num_net_queue, struct Gate** gate_queue, int* num_gate_queue, int* current_tick, int queue_max);
void sim_update_nets();

struct Net** net_queue;
int* num_net_queue;
struct Gate** gate_queue;
int* num_gate_queue;
int* current_tick;
int queue_max;

void sim_set_data(struct Net** net_queue_in, int* num_net_queue_in, struct Gate** gate_queue_in, int* num_gate_queue_in, int* current_tick_in, int queue_max_in) {
	net_queue = net_queue_in;
	num_net_queue = num_net_queue_in;
	gate_queue = gate_queue_in;
	num_gate_queue = num_gate_queue_in;
	current_tick = current_tick_in;
	queue_max = queue_max_in;
}

void sim_update_net(struct Net* net);
void sim_update_nets() {
	for(int i=0; i<*num_net_queue; i++) {
		struct Net* net = net_queue[i];
		sim_update_net(net);
		*(net->in_queue) = 0;
		net_queue[i] = 0;
	}
	*num_net_queue = 0;
}

////

void sim_queue_gate(struct Gate* gate) {
	assert(*num_gate_queue < queue_max);
	gate_queue[*num_gate_queue++] = gate;
	*(gate->in_queue) = 1;
}

void sim_update_net(struct Net* net) {
	int state = *(net->state_num) > 0;
	if(state != *(net->state)) {
		*(net->state) = state;
		*(net->update_tick) = *current_tick;
		
		for(int i=0; i<*(net->num_gates_update); i++) {
			struct Gate* gate = net->gates_update_c[i];
			if(!*(gate->in_queue)) {
				sim_queue_gate(gate);
			}
		}
	}
}