/*
   There are a total of 5 entries in the algebraic variable array.
   There are a total of 3 entries in each of the rate and state variable arrays.
   There are a total of 13 entries in the constant variable array.
 */
/*
 * VOI is time in component environment (minute).
 * CONSTANTS[0] is POT in component non_muscle_autoregulatory_local_blood_flow_control (mmHg).
 * CONSTANTS[9] is POD in component NM_autoregulatory_driving_force (mmHg).
 * CONSTANTS[1] is POR in component parameter_values (mmHg).
 * CONSTANTS[10] is POB in component NM_ST_sensitivity_control (mmHg).
 * CONSTANTS[2] is POK in component parameter_values (dimensionless).
 * ALGEBRAIC[0] is AR1 in component NM_ST_time_delay_and_damping (dimensionless).
 * CONSTANTS[3] is A1K in component parameter_values (minute).
 * STATES[0] is AR1T in component NM_ST_time_delay_and_damping (dimensionless).
 * CONSTANTS[11] is POA in component NM_I_sensitivity_control (mmHg).
 * CONSTANTS[4] is PON in component parameter_values (dimensionless).
 * ALGEBRAIC[1] is AR2 in component NM_I_time_delay_and_limit (dimensionless).
 * CONSTANTS[5] is A2K in component parameter_values (minute).
 * STATES[1] is AR2T in component NM_I_time_delay_and_limit (dimensionless).
 * CONSTANTS[12] is POC in component NM_LT_sensitivity_control (mmHg).
 * CONSTANTS[6] is POZ in component parameter_values (dimensionless).
 * ALGEBRAIC[2] is AR3 in component NM_LT_time_delay_and_limit (dimensionless).
 * CONSTANTS[7] is A3K in component parameter_values (minute).
 * STATES[2] is AR3T in component NM_LT_time_delay_and_limit (dimensionless).
 * ALGEBRAIC[3] is ARM1 in component total_NM_autoregulation (dimensionless).
 * ALGEBRAIC[4] is ARM in component global_NM_blood_flow_autoregulation_output (dimensionless).
 * CONSTANTS[8] is AUTOSN in component parameter_values (dimensionless).
 * RATES[0] is d/dt AR1T in component NM_ST_time_delay_and_damping (dimensionless).
 * RATES[1] is d/dt AR2T in component NM_I_time_delay_and_limit (dimensionless).
 * RATES[2] is d/dt AR3T in component NM_LT_time_delay_and_limit (dimensionless).
 * There are a total of 3 condition variables.
 */
void
initConsts(double* CONSTANTS, double* RATES, double *STATES)
{
CONSTANTS[0] = 35.1148;
CONSTANTS[1] = 35;
CONSTANTS[2] = 0.1;
CONSTANTS[3] = 0.5;
STATES[0] = 1.02127;
CONSTANTS[4] = 0.1;
CONSTANTS[5] = 60;
STATES[1] = 1.01179;
CONSTANTS[6] = 2;
CONSTANTS[7] = 40000;
STATES[2] = 1.1448;
CONSTANTS[8] = 0.9;
CONSTANTS[9] = CONSTANTS[0] - CONSTANTS[1];
CONSTANTS[10] =  CONSTANTS[9]*CONSTANTS[2]+1.00000;
CONSTANTS[11] =  CONSTANTS[4]*CONSTANTS[9]+1.00000;
CONSTANTS[12] =  CONSTANTS[6]*CONSTANTS[9]+1.00000;
RATES[0] = 0.1001;
RATES[1] = 0.1001;
RATES[2] = 0.1001;
}
void
computeResiduals(double VOI, double* CONSTANTS, double* RATES, double* OLDRATES, double* STATES,
                 double* OLDSTATES, double* ALGEBRAIC, double* CONDVARS)
{
resid[0] = RATES[0] - ( CONSTANTS[10]*1.00000 - STATES[0])/CONSTANTS[3];
resid[1] = RATES[1] - ( CONSTANTS[11]*1.00000 - STATES[1])/CONSTANTS[5];
resid[2] = RATES[2] - ( CONSTANTS[12]*1.00000 - STATES[2])/CONSTANTS[7];
}
void
computeVariables(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
ALGEBRAIC[0] = (CONDVAR[0]<0.00000 ? 0.500000 : STATES[0]);
ALGEBRAIC[1] = (CONDVAR[1]<0.00000 ? 0.500000 : STATES[1]);
ALGEBRAIC[2] = (CONDVAR[2]<0.00000 ? 0.300000 : STATES[2]);
ALGEBRAIC[3] =  ALGEBRAIC[0]*ALGEBRAIC[1]*ALGEBRAIC[2];
ALGEBRAIC[4] =  (ALGEBRAIC[3] - 1.00000)*CONSTANTS[8]+1.00000;
}
void
computeEssentialVariables(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
}
void
getStateInformation(double* SI)
{
SI[0] = 1.0;
SI[1] = 1.0;
SI[2] = 1.0;
}
void
computeRoots(double VOI, double* CONSTANTS, double* RATES, double* OLDRATES, double* STATES,
             double* OLDSTATES, double* ALGEBRAIC, double* CONDVARS)
{
CONDVAR[0] = STATES[0] - 0.500000;
CONDVAR[1] = STATES[1] - 0.500000;
CONDVAR[2] = STATES[2] - 0.300000;
}