# bigbang.jl  a utility for the Space Commander game

using JSON

cfgfile = "data/bigbang.json"
LY = 9460730472580800  # light year in meters (exact)

macro OK() @printf("\e[128C\e[4D\e[0m[\e[1;32mOK\e[0m]\n") end  # [OK]

@printf("\n\e[1;31mbigbang.jl \e[30mfor \e[34mSpace Commander\e[0m\n\n")
print("Searching for configs...")
                                                # Galaxy Name
# Read in the data file and get the configs     # Origin System
                                                # Home World
bbcfg = Dict()                                  # Creator
try                                             # Systems
    open(cfgfile, "r") do f                     # Planets
        global bbcfg                            # Galaxy Size
        bbcfg=JSON.parse(readstring(f))         # Spiral Arms
        @OK                                     # Variance
    end                                         # Chaos
catch
    @printf("\e[1;31mError: %s not found. Running GUI... ", cfgfile)
    run(`./bigb5`)
    exit()
end
@printf("Read %s :: \e[1;33mVersion %d", cfgfile, bbcfg["Version"]); @OK
print("Loading functions... ")

function discus()  # return [x,y,z]  attempts to make an elliptical blob
    s = rand()*bbcfg["Galaxy Size"]
    a = 2π * rand()
    b = (π/2 * exp(-0.07*s) * rand()) * rand([-1,1])
    r = [cos(b)*cos(a), cos(b)*sin(a), sin(b)] * s * LY
    return r
end

@OK
@printf "Generating %s points... " bbcfg["Systems"]
points = Array{Float64}(bbcfg["Systems"],3)
for i in 1:bbcfg["Systems"]
    points[i,:] = discus()
end
@OK