/*
   There are a total of 6 entries in the algebraic variable array.
   There are a total of 1 entries in each of the rate and state variable arrays.
   There are a total of 21 entries in the constant variable array.
 */
/*
 * VOI is time in component environment (minute).
 * CONSTANTS[0] is ANM in component aldosterone (dimensionless).
 * CONSTANTS[1] is CKE in component aldosterone (monovalent_mEq_per_litre).
 * CONSTANTS[15] is ANMAL in component angiotensin_control_of_aldosterone_secretion (dimensionless).
 * CONSTANTS[2] is ANMALD in component parameter_values (dimensionless).
 * CONSTANTS[16] is OSMAL in component osmotic_control_of_aldosterone_secretion (dimensionless).
 * CONSTANTS[20] is AMR1 in component aldosterone_secretion (dimensionless).
 * CONSTANTS[3] is AMKMUL in component parameter_values (dimensionless).
 * CONSTANTS[4] is ALDINF in component parameter_values (dimensionless).
 * CONSTANTS[5] is ALDKNS in component parameter_values (dimensionless).
 * CONSTANTS[17] is AMRBSC in component aldosterone_secretion (dimensionless).
 * CONSTANTS[18] is AMRT in component aldosterone_secretion (dimensionless).
 * CONSTANTS[19] is AMR in component aldosterone_secretion (dimensionless).
 * STATES[0] is AMC in component aldosterone_concentration (dimensionless).
 * CONSTANTS[6] is AMT in component parameter_values (minute).
 * ALGEBRAIC[1] is AM in component general_aldosterone_multiplier (dimensionless).
 * CONSTANTS[7] is AM1UL in component parameter_values (dimensionless).
 * CONSTANTS[8] is AM1LL in component parameter_values (dimensionless).
 * CONSTANTS[9] is AMCSNS in component parameter_values (dimensionless).
 * CONSTANTS[10] is ALDMM in component parameter_values (dimensionless).
 * ALGEBRAIC[0] is AM1 in component general_aldosterone_multiplier (dimensionless).
 * ALGEBRAIC[3] is AMK in component aldosterone_effect_on_cell_membrane_K_transport (dimensionless).
 * CONSTANTS[11] is AMKM in component parameter_values (dimensionless).
 * ALGEBRAIC[2] is AMKT in component aldosterone_effect_on_cell_membrane_K_transport (dimensionless).
 * ALGEBRAIC[5] is AMNA in component aldosterone_effect_on_cell_membrane_Na_transport (dimensionless).
 * CONSTANTS[12] is AMNAM in component parameter_values (dimensionless).
 * CONSTANTS[13] is AMNAUL in component parameter_values (dimensionless).
 * CONSTANTS[14] is AMNALL in component parameter_values (dimensionless).
 * ALGEBRAIC[4] is AMNAT in component aldosterone_effect_on_cell_membrane_Na_transport (dimensionless).
 * RATES[0] is d/dt AMC in component aldosterone_concentration (dimensionless).
 * There are a total of 3 condition variables.
 */
void
initConsts(double* CONSTANTS, double* RATES, double *STATES)
{
CONSTANTS[0] = 0.987545;
CONSTANTS[1] = 4.44092;
CONSTANTS[2] = 2.5;
CONSTANTS[3] = 12;
CONSTANTS[4] = 0;
CONSTANTS[5] = 0;
STATES[0] = 1.0;
CONSTANTS[6] = 60;
CONSTANTS[7] = 5;
CONSTANTS[8] = 0;
CONSTANTS[9] = 0.65;
CONSTANTS[10] = 2.5;
CONSTANTS[11] = 0.5;
CONSTANTS[12] = 0.8;
CONSTANTS[13] = 15;
CONSTANTS[14] = 0.04;
CONSTANTS[15] =  (CONSTANTS[0] - 1.00000)*CONSTANTS[2]+1.00000;
CONSTANTS[16] = (CONSTANTS[1] - 3.30000)/1.00000;
CONSTANTS[17] =  CONSTANTS[15]*0.909000*CONSTANTS[16];
CONSTANTS[18] =  (CONSTANTS[17] - 1.00000)*CONSTANTS[3]+1.00000;
CONSTANTS[19] = (CONSTANTS[18]<0.00000 ? 0.00000 : CONSTANTS[18]);
CONSTANTS[20] = (CONSTANTS[5]>0.00000 ? CONSTANTS[5] : CONSTANTS[19]+CONSTANTS[4]);
RATES[0] = 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[20] - STATES[0])/CONSTANTS[6];
}
void
computeVariables(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
ALGEBRAIC[0] = CONSTANTS[7] - (CONSTANTS[7] - 1.00000)/( ((CONSTANTS[8] - 1.00000)/(CONSTANTS[8] - CONSTANTS[7]))*(STATES[0] - 1.00000)*CONSTANTS[9]+1.00000);
ALGEBRAIC[1] =  (ALGEBRAIC[0] - 1.00000)*CONSTANTS[10]+1.00000;
ALGEBRAIC[2] =  (ALGEBRAIC[1] - 1.00000)*CONSTANTS[11]+1.00000;
ALGEBRAIC[3] = (CONDVAR[0]<0.00000 ? 0.200000 : ALGEBRAIC[2]);
ALGEBRAIC[4] =  (ALGEBRAIC[1] - 1.00000)*CONSTANTS[12]+1.00000;
ALGEBRAIC[5] = (CONDVAR[1]<0.00000 ? CONSTANTS[14] : CONDVAR[2]>0.00000 ? CONSTANTS[13] : ALGEBRAIC[4]);
}
void
computeEssentialVariables(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
}
void
getStateInformation(double* SI)
{
SI[0] = 1.0;
}
void
computeRoots(double VOI, double* CONSTANTS, double* RATES, double* OLDRATES, double* STATES,
             double* OLDSTATES, double* ALGEBRAIC, double* CONDVARS)
{
CONDVAR[0] = ALGEBRAIC[2] - 0.200000;
CONDVAR[1] = ALGEBRAIC[4] - CONSTANTS[14];
CONDVAR[2] = ALGEBRAIC[4] - CONSTANTS[13];
}