Added paladin drag

drag.json

@@ -15,5 +15,6 @@
   "2B14-1 Podnos" : -0.00006,
   "M224 (ACE)": -0.00006,
   "M270 MLRS": -0.00006,
-  "MK45 Hammer": -0.00006
+  "MK45 Hammer": -0.00006,
+  "M109A6 Paladin": -0.00006
 }

main.go

@@ -19,6 +19,7 @@ import (
 	"image"
 	"image/png"
 	"math"
+	"net/http"
 	"strconv"
 	"strings"
 	"time"
@@ -605,19 +606,52 @@ func GraphShotDrag(dataPoints plotter.XYs, distance float64, lowHigh string) ima
 
 }
 
+func GetLatestNumbers() Guns {
+	tempGuns := Guns{}
+	resp, err := http.Get("https://raw.githubusercontent.com/habitualdev/ArtyCalc/main/artillery.json")
+	if err != nil {
+		err = json.Unmarshal(artilleryJson, &tempGuns)
+		return tempGuns
+	}
+	defer resp.Body.Close()
+	buf := []byte{}
+	resp.Body.Read(buf)
+	err = json.Unmarshal(buf, &tempGuns)
+	if err != nil {
+		err = json.Unmarshal(artilleryJson, &tempGuns)
+		return tempGuns
+	}
+	return tempGuns
+}
+
+func GetLatestNumbersDrag() DragTable {
+	artyDrag := DragTable{}
+	resp, err := http.Get("https://raw.githubusercontent.com/habitualdev/ArtyCalc/main/drag.json")
+	if err != nil {
+		err = json.Unmarshal(dragTable, &artyDrag)
+		return artyDrag
+	}
+	defer resp.Body.Close()
+	buf := []byte{}
+	resp.Body.Read(buf)
+	err = json.Unmarshal(buf, &artyDrag)
+	if err != nil {
+		err = json.Unmarshal(dragTable, &artyDrag)
+		return artyDrag
+	}
+	return artyDrag
+}
+
 func main() {
 	lastCalcMission := FireMission{}
 	var savedMissions FireMissions
-	var err error
 	airResistanceBool := false
 	guns := Guns{}
 
 	curGun := Gun{}
 
-	err = json.Unmarshal(artilleryJson, &guns)
-	if err != nil {
-		return
-	}
+	guns = GetLatestNumbers()
+	dragTableJson = GetLatestNumbersDrag()
 
 	a = app.New()
 	a.Settings().SetTheme(theme.DarkTheme())

vector.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	_ "embed"
-	"encoding/json"
 	"fmt"
 	"gonum.org/v1/plot/plotter"
 	"math"
@@ -13,6 +12,8 @@ var dragTable []byte
 
 type DragTable map[string]float64
 
+var dragTableJson = DragTable{}
+
 const timeStep = 1.0 / 60
 
 type vector3 struct {
@@ -66,9 +67,7 @@ func (v vector3) lerp(vector vector3, t float64) vector3 {
 
 func CalculateForAngle(delta, testAngle, muz float64) (float64, float64, plotter.XYs) {
 	newPlot := plotter.XYs{}
-	table := DragTable{}
-	json.Unmarshal(dragTable, &table)
-	trueDrag := table[currentGunString]
+	trueDrag := dragTableJson[currentGunString]
 
 	k := -1 * trueDrag * 1
 	temperature := 15.0