From 69d5a3c712028b0448489c89243618b864dd02ea Mon Sep 17 00:00:00 2001
From: realtradam <mr.malczewski@gmail.com>
Date: Mon, 19 Apr 2021 21:58:14 -0400
Subject: .

---
 camera.rb | 144 ++++++++++++++------------------------------------------------
 1 file changed, 33 insertions(+), 111 deletions(-)

(limited to 'camera.rb')

diff --git a/camera.rb b/camera.rb
index 8623e34..8748ce5 100644
--- a/camera.rb
+++ b/camera.rb
@@ -1,136 +1,58 @@
 # frozen_string_literal: true
 
-require 'ruby2d'
-require_relative 'quad_camera_tracker'
+require_relative 'adapt_triangle'
 
-# Simulates a moving camera by manipulating objects it knows
-class Camera
-  # Is added to quads to manage how they show and modify
-  # it should convert or undo the camera modification
-  # such that it is as if the camera wasnt there and everything
-  # is relative to the origin
-  class <<self
-    attr_writer :elasticity
+module Camera
 
+  class <<self
     private
-
-    attr_writer :camera_position_x, :camera_position_y, :zoom_level, :rotation_degrees
-  end
-
-  def self.elasticity
-    @elasticity ||= 1
-  end
-
-  def self.camera_position_x
-    @camera_position_x ||= 0
-  end
-
-  def self.camera_position_y
-    @camera_position_y ||= 0
-  end
-
-  def self.camera_position
-    [camera_position_x, camera_position_y]
-  end
-
-  def self.zoom_level
-    @zoom_level ||= 1
-  end
-
-  def self.rotation_degrees
-    @rotation_degrees ||= 0
-  end
-
-  def self.rotate_by(degrees)
-    # offset rotation to world
-    objects.each do |object|
-      unless object.is_a?(Image) or object.is_a?(AnimatedSquare)
-        object.update(rotate: degrees)
-      end
+    def objects
+      @objects ||= []
     end
-    self.rotation_degrees += degrees
-    self.rotation_degrees %= 360
   end
 
-  def self.zoom_by(zoom)
-    objects.each do |object|
-      if object.is_a?(Image) or object.is_a?(AnimatedSquare)
-        object.size *= zoom
-        object.x *= zoom
-        object.y *= zoom
-      else
-        object.update(zoom: zoom)
-      end
-    end
-    self.zoom_level *= zoom
-    move_by(Window.width / 2 * (zoom - 1),
-            Window.height / 2 * (zoom - 1))
+  def self.<<(item)
+    item.extend AdaptTriangle if item.is_a? Triangle
+    objects.push(item) unless objects.include?(item)
   end
 
-  def self.zoom_to(zoom)
-    zoom_by(zoom / self.zoom_level)
+  def self.x
+    @x ||= 0
   end
 
-  def self.follow(item)
-    move_by(((item.x - camera_position_x - (Window.width / 2) / zoom_level) /
-             (elasticity / (zoom_level * zoom_level))),
-            ((item.y - camera_position_y - (Window.height / 2) / zoom_level) /
-             (elasticity / (zoom_level * zoom_level))))
+  def self.x=(x)
+    angle = Camera.angle * (Math::PI / 180)
+    @y -= (-self.x + x) * Math.sin(-angle)
+    @x -= (-self.x + x) * Math.cos(-angle)
+    objects.each(&:_update)
   end
 
-  def self.objects
-    @objects ||= []
+  def self.y
+    @y ||= 0
   end
 
-  def self.<<(item)
-    item.extend QuadCameraTracker if item.is_a? Quad
-    objects.push(item) unless objects.include?(item)
+  def self.y=(y)
+    angle = Camera.angle * (Math::PI / 180)
+    @x -= -(-self.y + y) * Math.sin(-angle)
+    @y -= (-self.y + y) * Math.cos(-angle)
+    objects.each(&:_update)
   end
 
-  def self.add(item)
-    self << item
+  def self.zoom
+    @zoom ||= 1.0
   end
 
-  def self.remove(item)
-    objects.delete(item) if objects.include?(item)
+  def self.zoom=(zoom)
+    #TODO
+    @zoom = zoom
   end
 
-  def self.move_by(x, y)
-    objects.each do |object|
-      if object.is_a?(Image) or object.is_a?(AnimatedSquare)
-        object.x -= x
-        object.y -= y
-      else
-        object.update(x: x, y: y)
-      end
-    end
-    self.camera_position_x += x / zoom_level
-    self.camera_position_y += y / zoom_level
+  def self.angle
+    @angle ||= 0
   end
-# SOMETHING MESSED UP
-  # with the camera position thing
-  def self.move_to(x, y)
-    objects.each do |object|
-      if object.is_a?(Image) or object.is_a?(AnimatedSquare)
-        object.x -= object.x + x
-        object.y -= object.y + y
-      else
-        object.update(x: -Camera.camera_position_x + x, y: -Camera.camera_position_y + y)
-      end
-    end
-    self.camera_position_x = x / zoom_level
-    self.camera_position_y = y / zoom_level
-=begin
-    self.camera_position_x = x / zoom_level + camera_position[0]
-    self.camera_position_y = y / zoom_level + camera_position[1]
-    objects.each do |object|
-      if object.is_a?(Image) or object.is_a?(AnimatedSquare)
-        object.x -= x
-        object.y -= y
-      else
-        object.update(x: x, y: y)
-      end
-    end
-=end
+
+  def self.angle=(angle)
+    @angle = angle
+    objects.each(&:_update)
   end
 end
-- 
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