Deleted force.go (complete cleanup)

1 files changed, 0 insertions, 80 deletions

diff --git a/force.go b/force.go
deleted file mode 100644
index 3bc6d93..0000000
--- a/force.go
+++ /dev/null
@@ -1,80 +0,0 @@
-// Collection of functions calculating the force inbetween of stars
-
-package main
-
-import (
-	"math"
-	"fmt"
-	"io/ioutil"
-)
-
-// forces_acting calculates the force inbetween the two given stars s1 and s2
-// The function return the force
-func force_acting(s1 star, s2 star) force {
-
-	// Gravitational constant
-	var G float64 = 6.674 * math.Pow(10, -11)
-
-	// Distance between the stars
-	var r21 float64 = math.Sqrt(math.Pow(s2.c.x - s1.c.x, 2) + math.Pow(s2.c.y - s1.c.y, 2))
-
-	// Unit vector pointing from s1 to s2
-	rhat := force{s2.c.x - s1.c.x, s2.c.y - s1.c.y}
-
-	// Calculate how strong the star is affected
-	var F_scalar float64 = G * (s1.mass * s2.mass) / math.Pow(math.Abs(r21), 2)
-
-	// Calculate the overall force by combining the scalar and the vector
-	var Fx float64 =  F_scalar * rhat.x
-	var Fy float64 =  F_scalar * rhat.y
-
-	// Pack the forces in a force structur
-	F := force{Fx, Fy}
-
-	return F
-}
-
-// forces calculates the forces acting in between a given star and all the other stars in a given array.
-func forces(stars_arr []star, nr int) {
-
-	// Iterate over all the stars in the stars_arr
-	for index, _ := range stars_arr {
-
-		// If the current star is not the star itself
-		if index != nr {
-
-			// generate a new force and add it to the overall force of the star
-			fa := force_acting(stars_arr[nr], stars_arr[index])
-			stars_arr[nr].f.x += fa.x
-			stars_arr[nr].f.y += fa.y
-		}
-	}
-}
-
-// calc_all_forces iterates over all the stars in a given array and calculate the forces acting on all stars
-func calc_all_forces(arr []star) {
-
-	// Iterate over all the stars
-	for index, _ := range arr {
-
-		// Calculate the force acting inbetween the given star and all other stars
-		// This utilizes go-routines :D
-		go forces(arr, index)
-	}
-}
-
-// save_as_csv saves all the information stored in the given array to the given path.
-// If no error occures, the return value is nil
-func save_as_csv(stars_arr []star, path string) error {
-
-	var filename string = path + ".txt"
-	var content string
-
-	// Iterate over all the stars in the given array and add the info the the content that will be saved
-	for _, elem := range stars_arr {
-		content += fmt.Sprintf("%f,%f,%f,%f,%f\n", elem.c.x, elem.c.y, elem.f.x, elem.f.y, elem.mass)
-	}
-
-	// Return the error and write the data to disc
-	return ioutil.WriteFile(filename, []byte(content), 0600)
-}