5 files changed, 121 insertions, 20 deletions

diff --git a/include/ace.h b/include/ace.h
new file mode 100644
index 0000000..90b1996
--- /dev/null
+++ b/include/ace.h
@@ -0,0 +1,17 @@
+#ifndef ACE_H
+#define ACE_H
+
+#include <stdbool.h>
+
+typedef struct ace_ballistics ace_ballistics;
+
+typedef struct {
+	ace_ballistics *ballistics;
+} ace_config;
+extern ace_config *ace;
+
+struct ace_ballistics {
+	bool enabled;
+};
+
+#endif
diff --git a/include/atragmx.h b/include/atragmx.h
new file mode 100644
index 0000000..8e6c1e0
--- /dev/null
+++ b/include/atragmx.h
@@ -0,0 +1,9 @@
+#ifndef ATRAGMX_H
+#define ATRAGMX_H
+
+#include "ace.h"
+#include "context.h"
+
+ATragMXSolution *ATragMXCalcSolution(ATragMXContext *, ace_config *);
+
+#endif
diff --git a/include/ballistics.h b/include/ballistics.h
new file mode 100644
index 0000000..470c7a6
--- /dev/null
+++ b/include/ballistics.h
@@ -0,0 +1,16 @@
+#ifndef ACE_BALLISTICS_H
+#define ACE_BALLISTICS_H
+
+#include "context.h"
+
+double atmospheric_correction(double ballistic_coefficient,
+                              double temperature,
+                              double pressure,
+                              double relative_humidity,
+                              AtmosphereModel atmosphere_model);
+
+double calculate_air_density(double temperature,
+							 double pressure,
+							 double relative_humidity);
+
+#endif
diff --git a/include/constants.h b/include/constants.h
new file mode 100644
index 0000000..cfc9c80
--- /dev/null
+++ b/include/constants.h
@@ -0,0 +1,13 @@
+#ifndef CONST_H
+#define CONST_H
+
+static const double GRAVITY = 9.80665;
+
+static const double DRY_AIR_MOLAR_MASS = 0.028964;
+static const double WATOR_VAPOR_MOLAR_MASS = 0.018016;
+static const double UNIVERSAL_GAS_CONSTANT = 8.31432;
+static const double SPECIFIC_GAST_CONSTANT_DRY_AIR = 287.057036320950;
+static const double STD_AIR_DENSITY_ICAO = 1.22498;
+static const double STD_AIR_DENSITY_ASM = 1.20886;
+
+#endif
diff --git a/include/context.h b/include/context.h
index 95580ee..a2f651f 100644
--- a/include/context.h
+++ b/include/context.h
@@ -1,34 +1,80 @@
+#ifndef CONTEXT_H
+#define CONTEXT_H
+
+#include <stddef.h>
 #include <stdlib.h>
+#include <stdbool.h>
+
+#include "ace.h"
 
 typedef enum {
-	ATM_1,
-	ATM_2
-} ATM_MODEL;
+	BC_UNKNOWN = 0,
+	BC_G1,
+	BC_G2,
+	BC_G3,
+	BC_G4,
+	BC_G5,
+	BC_G6,
+	BC_G7,
+} BallisticModel;
+
+typedef enum {
+	ICAO,
+	ASM,
+} AtmosphereModel;
 
 typedef struct {
-	float scope_angle;
-	float bullet_mass;
-	float bore_height;
-	float muzzle_vel;
-	float ballistic_coef;
+	double scope_angle;
+	double bullet_mass;
+	double bore_height;
+	double muzzle_velocity;
+	double ballistic_coef;
 	size_t drag_model;
-	float twist_dir;
-} gun_config;
+	double twist_dir;
+} GunConfig;
 
 typedef struct {
-	float termperature;
-	float bar_pressure;
-	float rel_humidity;
-	float wind_speed;
+	double temperature;
+	double barometric_pressure;
+	double relative_humidity;
+	double wind_speed[2];
 	size_t wind_dir;
-	ATM_MODEL atmosphere_model;
-} atmo_context;
+	AtmosphereModel atmosphere_model;
+} AtmoContext;
 
 typedef struct {
-	float target_speed;
-	float target_range;
-} target_context;
+	double speed;
+	double range;
+	double inclination_angle;
+	double latitude;
+	size_t direction;
+} TargetContext;
 
 typedef struct {
-	gun_config gun;
+	GunConfig gun;
+	TargetContext target;
+	AtmoContext atmosphere;
+	size_t sim_steps;
+	bool store_range_card;
+	size_t stability_factor;
+} ATragMXContext;
+
+typedef struct {
+	double w1;
+	double w2;
+} Windage;
+
+typedef struct {
+	double elev;
+	Windage windage;
+	double lead;
+	double time_of_flight;
+	double remaining_velocity;
+	double remaining_energy;
+	double coriolis_vdrift;
+	double coriolis_hdrift;
+	double spin_drift;
+	double *range_card;
 } ATragMXSolution;
+
+#endif