Minor bug fix

app.rb

@@ -1,6 +1,9 @@
 #!/usr/bin/ruby -w
+require "matrix"
 require "gosu"
+load "gosu_plugin.rb"
 load "physobj.rb"
+load "controller.rb"
 
 class Window < Gosu::Window
 	attr_accessor :freeze, :caption, :physobjs, :planets, :controller, :camera
@@ -34,15 +37,15 @@ class Window < Gosu::Window
 		if( @controller != nil ) then
 			@controller.button_up(id)
 		end
-
-		if( id == Gosu::KbEscape ) then
-			@freeze = !@freeze
-		end
 	end
 
 	def button_down(id)
 		super id
 
+		if( id == Gosu::KbEscape ) then
+			@freeze = !@freeze
+		end
+
 		if( @controller != nil ) then
 			@controller.button_down(id)
 		end
@@ -81,6 +84,7 @@ class Window < Gosu::Window
 	def draw
 		if( @controller != nil ) then
 			@camera = Vector[self.width/2, self.height/2] - @controller.pos 
+			@font.draw_text(@controller.debug_string, 0, 32, 1, 1.0, 1.0, Gosu::Color::WHITE)
 		end
 		camx, camy = @camera[0], @camera[1]
 
@@ -103,12 +107,8 @@ end
 
 window = Window.new("Physics!", 1600, 900)
 
-planet = Planet.new("Sol", window, 0xff_ffffaa, 1e2, 5, 12)
-planet.pos = Vector[800, 450]
-planet.show_info = false 
-
 cube = Player.new("Alpha", window, 8, 8)
-cube.show_info = true
+cube.show_info = false 
 cube.thrust = 0.0075
 cube.pos = Vector[800, 450 + 200]
 cube.vel = Vector[2.5, 0]
@@ -119,9 +119,20 @@ cube2.pos = Vector[800, 450 + 300]
 cube2.vel = Vector[-1.24, 0]
 cube2.show_info = true
 
-planet.orbit([cube, cube2])
+sol_orbiters = [cube, cube2]
+sol = Planet.new("Sol", window, 0xff_ffffaa, 1e2, 5, 12)
+sol.pos = Vector[800, 450]
+sol.orbit(sol_orbiters)
+
+planet = Planet.new("Planet", window, 0xff_cccccc, 1e1, 2, 12)
+planet.pos = Vector[200, 150]
+
 
+
+window.planets << sol 
 window.planets << planet
+
 window.physobjs << cube
 window.physobjs << cube2
+
 window.show

controller.rb

@@ -0,0 +1,60 @@
+class Player < PhysCube
+	attr_accessor :engine, :thrust
+	def initialize(name, world, width, height, color=0xff_ffffff)
+		super name, world, width, height, color
+
+		@engine = false
+		@thrust = 0.001
+	end
+
+	private def get_angle_vec
+		rads = (self.angle * Math::PI) / 180
+		dir_vec = Vector[Math::cos(rads), Math::sin(rads)]
+		return dir_vec
+	end
+
+	def tick
+		super
+
+		if( @engine && !self.world.freeze ) then
+			self.vel += self.get_angle_vec * @thrust
+		end
+	end
+
+	def button_up(id)
+	end
+
+	def button_up?(id)
+	end
+
+	def button_down(id)
+		if( id == Gosu::KbSpace ) then
+			@engine = !@engine
+		end
+
+		if( id == Gosu::KbLeft ) then
+			self.angle -= 20
+		end
+
+		if( id == Gosu::KbRight ) then
+			self.angle += 20	
+		end
+
+		if( id == Gosu::KbUp ) then
+			self.thrust += 0.0005
+			self.thrust = self.thrust.round(5)
+		end
+
+		if( id == Gosu::KbDown ) then
+			self.thrust -= 0.0005
+			self.thrust = self.thrust.round(5)
+		end
+	end
+
+	def button_down?(id)
+	end
+
+	def debug_string
+		return "\nName: #{self.name}\nOrbit of: #{self.parent_orbit.name}\nVel: #{self.vel.magnitude.round(1)} #{self.vel.round(4)}\nAccel: #{self.accel.magnitude.round(4)} #{self.accel.round(4)}\nPos: #{self.pos.round(4)}\nAngle: #{self.angle.round(1)} deg\nEngine: #{self.engine}\nThrust: #{self.thrust}\n"
+	end
+end

physobj.rb

@@ -1,6 +1,3 @@
-require "matrix"
-load "gosu_plugin.rb"
-
 GRAV_CONSTANT = 1e+1
 MAX_PATH_TRACK_POINT = 1000
 
@@ -41,7 +38,7 @@ class PhysObj
 
 	def render_path(x_offset=0, y_offset=0)
 		@saved_pos.each do |pos|
-			Gosu.draw_rect(pos[0] + x_offset, pos[1] + y_offset, 1, 1, Gosu::Color.argb(0x44_ccccff))
+			Gosu.draw_rect(pos[0] + x_offset, pos[1] + y_offset, 1, 1, Gosu::Color.argb(0xaa_ccccff))
 		end
 	end
 
@@ -126,10 +123,12 @@ class Planet < PhysObj
 	end
 
 	def orbit(physobjs)
-		physobjs.each do |obj|
+		if( !self.world.freeze ) then
-			grav_vec = self.calculate_gravity_vector(obj)
+			physobjs.each do |obj|
-			obj.accel = grav_vec
+				grav_vec = self.calculate_gravity_vector(obj)
-			obj.parent_orbit = self
+				obj.accel = grav_vec
+				obj.parent_orbit = self
+			end
 		end
 	end
 
@@ -144,53 +143,3 @@ class Planet < PhysObj
 end
 
 
-class Player < PhysCube
-	attr_accessor :engine, :thrust
-	def initialize(name, world, width, height, color=0xff_ffffff)
-		super name, world, width, height, color
-
-		@engine = false
-		@thrust = 0.001
-	end
-
-	private def get_angle_vec
-		rads = (self.angle * Math::PI) / 180
-		dir_vec = Vector[Math::cos(rads), Math::sin(rads)]
-		return dir_vec
-	end
-
-	def tick
-		super
-
-		if( @engine && !self.world.freeze ) then
-			self.vel += self.get_angle_vec * @thrust
-		end
-	end
-
-	def button_up(id)
-	end
-
-	def button_up?(id)
-	end
-
-	def button_down(id)
-		if( id == Gosu::KbSpace ) then
-			@engine = !@engine
-		end
-
-		if( id == Gosu::KbLeft ) then
-			self.angle -= 20
-		end
-
-		if( id == Gosu::KbRight ) then
-			self.angle += 20	
-		end
-	end
-
-	def button_down?(id)
-	end
-
-	private def debug_string
-		return "\n#{self.name} - #{self.parent_orbit.name}\nVel: #{self.vel.magnitude.round(1)} #{self.vel.round(4)}\nAccel: #{self.accel.magnitude.round(4)} #{self.accel.round(4)}\nPos: #{self.pos.round(4)}\nAngle: #{self.angle.round(1)} deg\nEngine: #{self.engine}\nThrust: #{self.thrust}\n"
-	end
-end