orbit trails, and cool stuff

main.lua

@@ -19,6 +19,7 @@ function love.load()
   VIEW.x = 0
   VIEW.y = 0
   VIEW.prints = {}
+  VIEW.orbit_prints = {}
 
   require "class"
 	require "body"
@@ -44,7 +45,7 @@ function love.load()
 	newBody(
 	  {0, 20000, 0},
 	  {-200000, 0, 0},
-	 3000,
+	 300,
 	  {0,1,1}
 	)
 end
@@ -79,6 +80,7 @@ function love.draw()
   for n, body in pairs(BodyList) do
     addPrint(body)
   end
+  drawObitPrints()
   drawPrints()
   -- draw info
   love.graphics.setColor(1,1,1)
@@ -100,6 +102,21 @@ function addPrint(body)
     color = body.color,
     time = VIEW.print_time
   })
+  VIEW.orbit_print_time = 1200
+  local trail_color = {
+  	(1 + body.color[1])/2,
+  	(1 + body.color[2])/2,
+  	(1 + body.color[3])/2
+  }
+  table.insert(VIEW.orbit_prints,{
+    pos = {
+      x = body.x,
+      y = body.y
+    },
+    mass = 1,
+    color = trail_color,
+    time = VIEW.orbit_print_time
+  })
 end
 
 function drawPrints()
@@ -110,3 +127,14 @@ function drawPrints()
     if print.time < 1 then VIEW.prints[n] = nil end
   end
 end
+
+
+
+function drawObitPrints()
+  for n, print in pairs(VIEW.orbit_prints) do
+    love.graphics.setColor(print.color[1],print.color[2],print.color[3],print.time/VIEW.orbit_print_time)
+    love.graphics.circle("line",(VIEW.x+print.pos.x)/VIEW.size+SCREEN_WIDTH/2,(VIEW.y+print.pos.y)/VIEW.size+SCREEN_HEIGHT/2,(print.time/VIEW.orbit_print_time)*print.mass/VIEW.size)
+    print.time = print.time - 1
+    if print.time < 1 then VIEW.orbit_prints[n] = nil end
+  end
+end