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authorrealtradam <[email protected]>2021-08-07 14:06:57 -0400
committerrealtradam <[email protected]>2021-08-07 14:06:57 -0400
commit548bd9fc01cbad4ae4b65c1e9f2a542c95a3822c (patch)
treeb035792863ac46e768760e00fce10424c68b48dc
parent691b1e5752141294dea7f30d4f468733dac153e3 (diff)
downloadruby2d-camera-548bd9fc01cbad4ae4b65c1e9f2a542c95a3822c.tar.gz
ruby2d-camera-548bd9fc01cbad4ae4b65c1e9f2a542c95a3822c.zip
initial test
-rw-r--r--.gitignore8
-rw-r--r--.rubocop.yml13
-rw-r--r--CHANGELOG.md5
-rw-r--r--Gemfile11
-rw-r--r--LICENSE.txt21
-rw-r--r--Rakefile8
-rwxr-xr-xbin/console15
-rwxr-xr-xbin/setup8
-rw-r--r--lib/ruby2d/camera.rb132
-rw-r--r--lib/ruby2d/camera/triangle.rb102
-rw-r--r--lib/ruby2d/camera/version.rb7
-rw-r--r--lib/ruby2d/camera/wrappers/circle_wrapper.rb47
-rw-r--r--lib/ruby2d/camera/wrappers/image_wrapper.rb73
-rw-r--r--lib/ruby2d/camera/wrappers/line_wrapper.rb91
-rw-r--r--lib/ruby2d/camera/wrappers/quad_wrapper.rb108
-rw-r--r--lib/ruby2d/camera/wrappers/rectangle_wrapper.rb138
-rw-r--r--lib/ruby2d/camera/wrappers/sprite_wrapper.rb86
-rw-r--r--lib/ruby2d/camera/wrappers/square_wrapper.rb146
-rw-r--r--lib/ruby2d/camera/wrappers/text_wrapper.rb84
-rw-r--r--lib/ruby2d/camera/wrappers/triangle_wrapper.rb90
-rw-r--r--ruby2d-camera-0.1.0.gembin0 -> 1452032 bytes
-rw-r--r--ruby2d-camera.gemspec38
-rw-r--r--test.rb10
23 files changed, 1239 insertions, 2 deletions
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9106b2a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,8 @@
+/.bundle/
+/.yardoc
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/
diff --git a/.rubocop.yml b/.rubocop.yml
new file mode 100644
index 0000000..bfef2d0
--- /dev/null
+++ b/.rubocop.yml
@@ -0,0 +1,13 @@
+AllCops:
+ TargetRubyVersion: 2.4
+
+Style/StringLiterals:
+ Enabled: true
+ EnforcedStyle: double_quotes
+
+Style/StringLiteralsInInterpolation:
+ Enabled: true
+ EnforcedStyle: double_quotes
+
+Layout/LineLength:
+ Max: 120
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..29886ab
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,5 @@
+## [Unreleased]
+
+## [0.1.0] - 2021-08-07
+
+- Initial release
diff --git a/Gemfile b/Gemfile
index 64e3e1c..d4cf82f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,10 @@
-ruby '2.7.2'
+# frozen_string_literal: true
-gem 'ruby2d', '3.1.4'
+source "https://rubygems.org"
+
+# Specify your gem's dependencies in ruby2d-camera.gemspec
+gemspec
+
+gem "rake", "~> 13.0"
+
+gem "rubocop", "~> 1.7"
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..82abdd9
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2021 realtradam
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..1924143
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+require "bundler/gem_tasks"
+require "rubocop/rake_task"
+
+RuboCop::RakeTask.new
+
+task default: :rubocop
diff --git a/bin/console b/bin/console
new file mode 100755
index 0000000..f814e79
--- /dev/null
+++ b/bin/console
@@ -0,0 +1,15 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require "bundler/setup"
+require "ruby2d/camera"
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+
+require "irb"
+IRB.start(__FILE__)
diff --git a/bin/setup b/bin/setup
new file mode 100755
index 0000000..dce67d8
--- /dev/null
+++ b/bin/setup
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+set -euo pipefail
+IFS=$'\n\t'
+set -vx
+
+bundle install
+
+# Do any other automated setup that you need to do here
diff --git a/lib/ruby2d/camera.rb b/lib/ruby2d/camera.rb
new file mode 100644
index 0000000..c8f1667
--- /dev/null
+++ b/lib/ruby2d/camera.rb
@@ -0,0 +1,132 @@
+# frozen_string_literal: true
+
+require_relative "camera/version"
+require_relative "camera/triangle"
+
+#Dir[File.join(__dir__, 'camera', '*.rb')].sort.each { |file| require file }
+
+# Handles rendering objects relative
+# to a camera location
+module Ruby2D
+ module Camera
+ class <<self
+
+ private
+ # Contains all objects that are tracked
+ def objects
+ @objects ||= []
+ end
+ end
+
+ def self.debug_x
+ @debug_x ||= 0
+ end
+
+ def self.debug_x=(debug_x)
+ @debug_x = debug_x
+ end
+
+ def self.debug_y
+ @debug_y ||= 0
+ end
+
+ def self.debug_y=(debug_y)
+ @debug_y = debug_y
+ end
+
+ # Adding objects so they are
+ # tracked by the Camera
+ def self.<<(item)
+=begin
+ case item
+ when Triangle
+ item.extend Camera::TriangleWrapped
+ when Square
+ item.extend Camera::SquareWrapped
+ when Rectangle
+ item.extend Camera::RectangleWrapped
+ when Quad
+ item.extend Camera::QuadWrapped
+ when Line
+ item.extend Camera::LineWrapped
+ when Circle
+ item.extend Camera::CircleWrapped
+ when Image
+ item.extend Camera::ImageWrapped
+ when Sprite
+ item.extend Camera::SpriteWrapped
+ when Text
+ item.extend Camera::TextWrapped
+ else
+ puts 'Warning: Non-standard Object added to Camera'
+ puts ' Object may not behave as expected'
+ end
+=end
+ objects.push(item) unless objects.include?(item)
+ end
+
+ def self.remove(item)
+ objects.delete(item) if objects.include?(item)
+ end
+
+ # Redraw all objects that
+ # are tracked by the Camera
+ def self.redraw(auto_purge: false)
+ #if auto_purge
+ # objects.each do |item|
+ # if item.nil?
+ # puts "Warning: Nil Object detected in Camera"
+ # puts " Nil Object removed"
+ # objects.delete(obj)
+ # else
+ # item.redraw
+ # end
+ # end
+ #else
+ objects.each(&:_draw)
+ #end
+ end
+
+ # Variables changing Camera properties
+ def self._x(x)
+ @x += x
+ end
+
+ def self._y(y)
+ @y += y
+ end
+
+ def self.x
+ @x ||= 0
+ end
+
+ def self.x=(x)
+ @x = x
+ end
+
+ def self.y
+ @y ||= 0
+ end
+
+ def self.y=(y)
+ @y = y
+ end
+
+ def self.zoom
+ @zoom ||= 1.0
+ end
+
+ def self.zoom=(zoom)
+ @zoom = zoom
+ end
+
+ def self.angle
+ @angle ||= 0
+ end
+
+ def self.angle=(angle)
+ angle %= 360
+ @angle = angle
+ end
+ end
+end
diff --git a/lib/ruby2d/camera/triangle.rb b/lib/ruby2d/camera/triangle.rb
new file mode 100644
index 0000000..cac74b8
--- /dev/null
+++ b/lib/ruby2d/camera/triangle.rb
@@ -0,0 +1,102 @@
+# frozen_string_literal: true
+
+module Ruby2D
+ module Camera
+ # Wraps existing variables as well as adding new methods
+ # so that it can be handled by the Ruby2D::Camera Module
+ class Triangle << Ruby2D::Triangle
+ # Recalculates real coordiantes
+ # Use after changing variables
+ def _draw
+ angle = Ruby2D::Camera.angle * (Math::PI / 180)
+ half_width = Window.width * 0.5
+ half_height = Window.height * 0.5
+ temp_x1 = (((x + @x1 - Ruby2D::Camera.x) * Math.cos(angle)) - ((y + @y1 - Ruby2D::Camera.y) * Math.sin(angle))) * Ruby2D::Camera.zoom + half_width
+ temp_y1 = (((x + @x1 - Ruby2D::Camera.x) * Math.sin(angle)) + ((y + @y1 - Ruby2D::Camera.y) * Math.cos(angle))) * Ruby2D::Camera.zoom + half_height
+ temp_x2 = (((x + @x2 - Ruby2D::Camera.x) * Math.cos(angle)) - ((y + @y2 - Ruby2D::Camera.y) * Math.sin(angle))) * Ruby2D::Camera.zoom + half_width
+ temp_y2 = (((x + @x2 - Ruby2D::Camera.x) * Math.sin(angle)) + ((y + @y2 - Ruby2D::Camera.y) * Math.cos(angle))) * Ruby2D::Camera.zoom + half_height
+ temp_x3 = (((x + @x3 - Ruby2D::Camera.x) * Math.cos(angle)) - ((y + @y3 - Ruby2D::Camera.y) * Math.sin(angle))) * Ruby2D::Camera.zoom + half_width
+ temp_y3 = (((x + @x3 - Ruby2D::Camera.x) * Math.sin(angle)) + ((y + @y3 - Ruby2D::Camera.y) * Math.cos(angle))) * Ruby2D::Camera.zoom + half_height
+ self.draw(x1: temp_x1, y1: temp_y1,
+ x2: temp_x2, y2: temp_y2,
+ x3: temp_x3, y3: temp_y3)
+ end
+
+ def initialize(opts= {})
+ #add to camera?
+ super(opts)
+ Ruby2D::Camera << self
+ end
+
+ #Methods for moving the shape
+ def x
+ @x ||= 0
+ end
+
+ def x=(x)
+ @x = x
+ end
+
+ def y
+ @y ||= 0
+ end
+
+ def y=(y)
+ @y = y
+ end
+=begin
+ # Wrappers for the coordinates so that
+ # they are handled by the Ruby2D::Camera instead
+ # and for ease of programming
+ def x1
+ @virtual_x1 ||= @x1
+ end
+
+ def x1=(x1)
+ @virtual_x1 = x1
+ end
+
+ def y1
+ @virtual_y1 ||= @y1
+ end
+
+ def y1=(y1)
+ @virtual_y1 = y1
+ end
+
+ def x2
+ @virtual_x2 ||= @x2
+ end
+
+ def x2=(x2)
+ @virtual_x2 = x2
+ end
+
+ def y2
+ @virtual_y2 ||= @y2
+ end
+
+ def y2=(y2)
+ @virtual_y2 = y2
+ end
+
+ def x3
+ @virtual_x3 ||= @x3
+ end
+
+ def x3=(x3)
+ @virtual_x3 = x3
+ end
+
+ def y3
+ @virtual_y3 ||= @y3
+ end
+
+ def y3=(y3)
+ @virtual_y3 = y3
+ end
+=end
+ end
+ end
+end
+
diff --git a/lib/ruby2d/camera/version.rb b/lib/ruby2d/camera/version.rb
new file mode 100644
index 0000000..a78e2f2
--- /dev/null
+++ b/lib/ruby2d/camera/version.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+module Ruby2d
+ module Camera
+ VERSION = "0.1.0"
+ end
+end
diff --git a/lib/ruby2d/camera/wrappers/circle_wrapper.rb b/lib/ruby2d/camera/wrappers/circle_wrapper.rb
new file mode 100644
index 0000000..a7db05a
--- /dev/null
+++ b/lib/ruby2d/camera/wrappers/circle_wrapper.rb
@@ -0,0 +1,47 @@
+# frozen_string_literal: true
+
+module Camera
+# Wraps existing variables as well as adding new methods
+# so that it can be handled by the Camera Module
+ module CircleWrapped
+ # Recalculates real coordiantes
+ # Use after changing variables
+ def redraw
+ angle = Camera.angle * (Math::PI / 180)
+ half_width = Window.width * 0.5
+ half_height = Window.height * 0.5
+ @radius = radius * Camera.zoom
+ @x = (((x - Camera.x + radius) * Math.cos(angle)) - ((y - Camera.y + radius) * Math.sin(angle))) * Camera.zoom + half_width
+ @y = (((x - Camera.x + radius) * Math.sin(angle)) + ((y - Camera.y + radius) * Math.cos(angle))) * Camera.zoom + half_height
+ end
+
+ # Methods for moving the shape as well as
+ # wrappers for the coordinates so that
+ # they are handled by the Camera instead
+ # and for ease of programming
+ def x
+ @virtual_x ||= @x
+ end
+
+ def x=(x)
+ @virtual_x = x
+ end
+
+ def y
+ @virtual_y ||= @y
+ end
+
+ def y=(y)
+ @virtual_y = y
+ end
+
+ def radius
+ @virtual_radius ||= @radius
+ end
+
+ def radius=(radius)
+ @virtual_radius = radius
+ end
+ end
+end
+
diff --git a/lib/ruby2d/camera/wrappers/image_wrapper.rb b/lib/ruby2d/camera/wrappers/image_wrapper.rb
new file mode 100644
index 0000000..9e4b163
--- /dev/null
+++ b/lib/ruby2d/camera/wrappers/image_wrapper.rb
@@ -0,0 +1,73 @@
+# frozen_string_literal: true
+
+module Camera
+ # Wraps existing variables as well as adding new methods
+ # so that it can be handled by the Camera Module
+ module ImageWrapped
+ # Recalculates real coordiantes
+ # Use after changing variables
+ def redraw
+ angle = Camera.angle * (Math::PI / 180)
+ half_width = Window.width * 0.5
+ half_height = Window.height * 0.5
+ offset_x = x + (width / 2)
+ offset_y = y + (height / 2)
+ @x = (((offset_x - Camera.x) * Math.cos(angle)) - ((offset_y - Camera.y) * Math.sin(angle))) \
+ * Camera.zoom + half_width - (width * Camera.zoom / 2)
+ @y = (((offset_x - Camera.x) * Math.sin(angle)) + ((offset_y - Camera.y) * Math.cos(angle))) \
+ * Camera.zoom + half_height - (height * Camera.zoom / 2)
+ @rotate = rotate + Camera.angle
+ @width = width * Camera.zoom
+ @height = height * Camera.zoom
+ end
+
+ #Methods for moving the shape
+
+ # Wrappers for the coordinates so that
+ # they are handled by the Camera instead
+ # and for ease of programming
+ def x
+ @virtual_x ||= @x
+ end
+
+ def x=(x)
+ @virtual_x = x
+ end
+
+ def y
+ @virtual_y ||= @y
+ end
+
+ def y=(y)
+ @virtual_y = y
+ end
+
+ def x
+ @virtual_x ||= @x
+ end
+
+ def rotate
+ @virtual_rotate ||= @rotate
+ end
+
+ def rotate=(rotate)
+ @virtual_rotate = rotate
+ end
+
+ def width
+ @virtual_width ||= @width
+ end
+
+ def width=(width)
+ @virtual_width = width
+ end
+
+ def height
+ @virtual_height ||= @height
+ end
+
+ def height=(height)
+ @virtual_height = height
+ end
+ end
+end
diff --git a/lib/ruby2d/camera/wrappers/line_wrapper.rb b/lib/ruby2d/camera/wrappers/line_wrapper.rb
new file mode 100644
index 0000000..7d4d944
--- /dev/null
+++ b/lib/ruby2d/camera/wrappers/line_wrapper.rb
@@ -0,0 +1,91 @@
+# frozen_string_literal: true
+
+module Camera
+# Wraps existing variables as well as adding new methods
+# so that it can be handled by the Camera Module
+ module LineWrapped
+ # Recalculates real coordiantes
+ # Use after changing variables
+ def redraw
+ angle = Camera.angle * (Math::PI / 180)
+ half_width = Window.width * 0.5
+ half_height = Window.height * 0.5
+ @x1 = (((x + x1 - Camera.x) * Math.cos(angle)) - ((y + y1 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y1 = (((x + x1 - Camera.x) * Math.sin(angle)) + ((y + y1 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x2 = (((x + x2 - Camera.x) * Math.cos(angle)) - ((y + y2 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y2 = (((x + x2 - Camera.x) * Math.sin(angle)) + ((y + y2 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @width = width * Camera.zoom
+ end
+
+ #Methods for moving the shape
+ def x
+ @x ||= 0
+ end
+
+ def x=(x)
+ @x = x
+ end
+
+ def y
+ @y ||= 0
+ end
+
+ def y=(y)
+ @y = y
+ end
+
+ # Wrappers for the coordinates so that
+ # they are handled by the Camera instead
+ # and for ease of programming
+ def x1
+ @virtual_x1 ||= @x1
+ end
+
+ def x1=(x1)
+ @virtual_x1 = x1
+ end
+
+ def y1
+ @virtual_y1 ||= @y1
+ end
+
+ def y1=(y1)
+ @virtual_y1 = y1
+ end
+
+ def x2
+ @virtual_x2 ||= @x2
+ end
+
+ def x2=(x2)
+ @virtual_x2 = x2
+ end
+
+ def y2
+ @virtual_y2 ||= @y2
+ end
+
+ def y2=(y2)
+ @virtual_y2 = y2
+ end
+
+ def width
+ @virtual_width ||= @width
+ end
+
+ def width=(width)
+ @virtual_width = width
+ end
+
+ def length
+ points_distance(x1, y1, x2, y2)
+ end
+
+ def contains?(x, y)
+ points_distance(x1, y1, x, y) <= length &&
+ points_distance(x2, y2, x, y) <= length &&
+ (((y2 - y1) * x - (x2 - x1) * y + x2 * y1 - y2 * x1).abs / length) <= 0.5 * width
+ end
+ end
+end
+
diff --git a/lib/ruby2d/camera/wrappers/quad_wrapper.rb b/lib/ruby2d/camera/wrappers/quad_wrapper.rb
new file mode 100644
index 0000000..477dbfd
--- /dev/null
+++ b/lib/ruby2d/camera/wrappers/quad_wrapper.rb
@@ -0,0 +1,108 @@
+# frozen_string_literal: true
+
+module Camera
+# Wraps existing variables as well as adding new methods
+# so that it can be handled by the Camera Module
+ module QuadWrapped
+ # Recalculates real coordiantes
+ # Use after changing variables
+ def redraw
+ angle = Camera.angle * (Math::PI / 180)
+ half_width = Window.width * 0.5
+ half_height = Window.height * 0.5
+ @x1 = (((x + x1 - Camera.x) * Math.cos(angle)) - ((y + y1 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y1 = (((x + x1 - Camera.x) * Math.sin(angle)) + ((y + y1 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x2 = (((x + x2 - Camera.x) * Math.cos(angle)) - ((y + y2 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y2 = (((x + x2 - Camera.x) * Math.sin(angle)) + ((y + y2 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x3 = (((x + x3 - Camera.x) * Math.cos(angle)) - ((y + y3 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y3 = (((x + x3 - Camera.x) * Math.sin(angle)) + ((y + y3 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x4 = (((x + x4 - Camera.x) * Math.cos(angle)) - ((y + y4 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y4 = (((x + x4 - Camera.x) * Math.sin(angle)) + ((y + y4 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ end
+
+ #Methods for moving the shape
+ def x
+ @x ||= 0
+ end
+
+ def x=(x)
+ @x = x
+ end
+
+ def y
+ @y ||= 0
+ end
+
+ def y=(y)
+ @y = y
+ end
+
+ # Wrappers for the coordinates so that
+ # they are handled by the Camera instead
+ # and for ease of programming
+ def x1
+ @virtual_x1 ||= @x1
+ end
+
+ def x1=(x1)
+ @virtual_x1 = x1
+ end
+
+ def y1
+ @virtual_y1 ||= @y1
+ end
+
+ def y1=(y1)
+ @virtual_y1 = y1
+ end
+
+ def x2
+ @virtual_x2 ||= @x2
+ end
+
+ def x2=(x2)
+ @virtual_x2 = x2
+ end
+
+ def y2
+ @virtual_y2 ||= @y2
+ end
+
+ def y2=(y2)
+ @virtual_y2 = y2
+ end
+
+ def x3
+ @virtual_x3 ||= @x3
+ end
+
+ def x3=(x3)
+ @virtual_x3 = x3
+ end
+
+ def y3
+ @virtual_y3 ||= @y3
+ end
+
+ def y3=(y3)
+ @virtual_y3 = y3
+ end
+
+ def x4
+ @virtual_x4 ||= @x4
+ end
+
+ def x4=(x4)
+ @virtual_x4 = x4
+ end
+
+ def y4
+ @virtual_y4 ||= @y4
+ end
+
+ def y4=(y4)
+ @virtual_y4 = y4
+ end
+ end
+end
+
diff --git a/lib/ruby2d/camera/wrappers/rectangle_wrapper.rb b/lib/ruby2d/camera/wrappers/rectangle_wrapper.rb
new file mode 100644
index 0000000..93e888a
--- /dev/null
+++ b/lib/ruby2d/camera/wrappers/rectangle_wrapper.rb
@@ -0,0 +1,138 @@
+# frozen_string_literal: true
+
+module Camera
+# Wraps existing variables as well as adding new methods
+# so that it can be handled by the Camera Module
+ module RectangleWrapped
+ # Rectangles are part of the exception where
+ # their x and y variables need to be reset
+ # when wrapped
+ def self.extended(obj)
+ obj.instance_exec do
+ @x = 0
+ @y = 0
+ end
+ end
+ # Recalculates real coordiantes
+ # Use after changing variables
+ def redraw
+ angle = Camera.angle * (Math::PI / 180)
+ half_width = Window.width * 0.5
+ half_height = Window.height * 0.5
+ @x1 = (((x + x1 - Camera.x) * Math.cos(angle)) - ((y + y1 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y1 = (((x + x1 - Camera.x) * Math.sin(angle)) + ((y + y1 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x2 = (((x + x2 - Camera.x) * Math.cos(angle)) - ((y + y2 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y2 = (((x + x2 - Camera.x) * Math.sin(angle)) + ((y + y2 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x3 = (((x + x3 - Camera.x) * Math.cos(angle)) - ((y + y3 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y3 = (((x + x3 - Camera.x) * Math.sin(angle)) + ((y + y3 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x4 = (((x + x4 - Camera.x) * Math.cos(angle)) - ((y + y4 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y4 = (((x + x4 - Camera.x) * Math.sin(angle)) + ((y + y4 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ end
+
+ #Methods for moving the shape
+ def x
+ @x ||= 0
+ end
+
+ def x=(x)
+ @x = x
+ end
+
+ def y
+ @y ||= 0
+ end
+
+ def y=(y)
+ @y = y
+ end
+
+ # Wrappers for the coordinates so that
+ # they are handled by the Camera instead
+ # and for ease of programming
+ def x1
+ @virtual_x1 ||= @x1
+ end
+
+ def x1=(x1)
+ @virtual_x1 = x1
+ end
+
+ def y1
+ @virtual_y1 ||= @y1
+ end
+
+ def y1=(y1)
+ @virtual_y1 = y1
+ end
+
+ def x2
+ @virtual_x2 ||= @x2
+ end
+
+ def x2=(x2)
+ @virtual_x2 = x2
+ end
+
+ def y2
+ @virtual_y2 ||= @y2
+ end
+
+ def y2=(y2)
+ @virtual_y2 = y2
+ end
+
+ def x3
+ @virtual_x3 ||= @x3
+ end
+
+ def x3=(x3)
+ @virtual_x3 = x3
+ end
+
+ def y3
+ @virtual_y3 ||= @y3
+ end
+
+ def y3=(y3)
+ @virtual_y3 = y3
+ end
+
+ def x4
+ @virtual_x4 ||= @x4
+ end
+
+ def x4=(x4)
+ @virtual_x4 = x4
+ end
+
+ def y4
+ @virtual_y4 ||= @y4
+ end
+
+ def y4=(y4)
+ @virtual_y4 = y4
+ end
+
+
+ def width
+ @width ||= 200
+ end
+
+ def width=(width)
+ self.x2 = width
+ self.x3 = width
+ @width = width
+ end
+
+ def height
+ @height ||= 100
+ end
+
+ def height=(height)
+ self.y3 = height
+ self.y4 = height
+ @height = height
+ end
+ end
+end
+
diff --git a/lib/ruby2d/camera/wrappers/sprite_wrapper.rb b/lib/ruby2d/camera/wrappers/sprite_wrapper.rb
new file mode 100644
index 0000000..d38c0bc
--- /dev/null
+++ b/lib/ruby2d/camera/wrappers/sprite_wrapper.rb
@@ -0,0 +1,86 @@
+# frozen_string_literal: true
+
+module Camera
+ # Wraps existing variables as well as adding new methods
+ # so that it can be handled by the Camera Module
+ module SpriteWrapped
+ # Recalculates real coordiantes
+ # Use after changing variables
+ def redraw
+ angle = Camera.angle * (Math::PI / 180)
+ half_width = Window.width * 0.5
+ half_height = Window.height * 0.5
+ offset_x = x + (width / 2)
+ offset_y = y + (height / 2)
+ @x = @flip_x = (((offset_x - Camera.x) * Math.cos(angle)) - ((offset_y - Camera.y) * Math.sin(angle))) \
+ * Camera.zoom + half_width - (width * Camera.zoom / 2)
+ @y = @flip_y = (((offset_x - Camera.x) * Math.sin(angle)) + ((offset_y - Camera.y) * Math.cos(angle))) \
+ * Camera.zoom + half_height - (height * Camera.zoom / 2)
+ @rotate = rotate + Camera.angle
+ @width = @flip_width = width * Camera.zoom
+ @height = @flip_height = height * Camera.zoom
+ case @flip
+ when :both
+ @flip_x = @x + @height
+ @flip_width = -@width
+ @flip_y = @y + @width
+ @flip_height = -@height
+ when :horizontal
+ @flip_y = @y + @width
+ @flip_height = -@height
+ when :vertical
+ @flip_x = @x + @height
+ @flip_width = -@width
+ end
+ end
+
+ #Methods for moving the shape
+
+ # Wrappers for the coordinates so that
+ # they are handled by the Camera instead
+ # and for ease of programming
+ def x
+ @virtual_x ||= @x
+ end
+
+ def x=(x)
+ @virtual_x = x
+ end
+
+ def y
+ @virtual_y ||= @y
+ end
+
+ def y=(y)
+ @virtual_y = y
+ end
+
+ def x
+ @virtual_x ||= @x
+ end
+
+ def rotate
+ @virtual_rotate ||= @rotate
+ end
+
+ def rotate=(rotate)
+ @virtual_rotate = rotate
+ end
+
+ def width
+ @virtual_width ||= @width
+ end
+
+ def width=(width)
+ @virtual_width = width
+ end
+
+ def height
+ @virtual_height ||= @height
+ end
+
+ def height=(height)
+ @virtual_height = height
+ end
+ end
+end
diff --git a/lib/ruby2d/camera/wrappers/square_wrapper.rb b/lib/ruby2d/camera/wrappers/square_wrapper.rb
new file mode 100644
index 0000000..2215a30
--- /dev/null
+++ b/lib/ruby2d/camera/wrappers/square_wrapper.rb
@@ -0,0 +1,146 @@
+# frozen_string_literal: true
+
+module Camera
+ # Wraps existing variables as well as adding new methods
+ # so that it can be handled by the Camera Module
+ module SquareWrapped
+ # Squares are part of the exception where
+ # their x and y variables need to be reset
+ # when wrapped
+ def self.extended(obj)
+ obj.instance_exec do
+ @x = 0
+ @y = 0
+ end
+ end
+ # Recalculates real coordiantes
+ # Use after changing variables
+ def redraw
+ angle = Camera.angle * (Math::PI / 180)
+ half_width = Window.width * 0.5
+ half_height = Window.height * 0.5
+ @x1 = (((x + x1 - Camera.x) * Math.cos(angle)) - ((y + y1 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y1 = (((x + x1 - Camera.x) * Math.sin(angle)) + ((y + y1 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x2 = (((x + x2 - Camera.x) * Math.cos(angle)) - ((y + y2 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y2 = (((x + x2 - Camera.x) * Math.sin(angle)) + ((y + y2 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x3 = (((x + x3 - Camera.x) * Math.cos(angle)) - ((y + y3 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y3 = (((x + x3 - Camera.x) * Math.sin(angle)) + ((y + y3 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x4 = (((x + x4 - Camera.x) * Math.cos(angle)) - ((y + y4 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y4 = (((x + x4 - Camera.x) * Math.sin(angle)) + ((y + y4 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ end
+
+ #Methods for moving the shape
+ def x
+ @x ||= 0
+ end
+
+ def x=(x)
+ @x = x
+ end
+
+ def y
+ @y ||= 0
+ end
+
+ def y=(y)
+ @y = y
+ end
+
+ # Wrappers for the coordinates so that
+ # they are handled by the Camera instead
+ # and for ease of programming
+ def x1
+ @virtual_x1 ||= @x1
+ end
+
+ def x1=(x1)
+ @virtual_x1 = x1
+ end
+
+ def y1
+ @virtual_y1 ||= @y1
+ end
+
+ def y1=(y1)
+ @virtual_y1 = y1
+ end
+
+ def x2
+ @virtual_x2 ||= @x2
+ end
+
+ def x2=(x2)
+ @virtual_x2 = x2
+ end
+
+ def y2
+ @virtual_y2 ||= @y2
+ end
+
+ def y2=(y2)
+ @virtual_y2 = y2
+ end
+
+ def x3
+ @virtual_x3 ||= @x3
+ end
+
+ def x3=(x3)
+ @virtual_x3 = x3
+ end
+
+ def y3
+ @virtual_y3 ||= @y3
+ end
+
+ def y3=(y3)
+ @virtual_y3 = y3
+ end
+
+ def x4
+ @virtual_x4 ||= @x4
+ end
+
+ def x4=(x4)
+ @virtual_x4 = x4
+ end
+
+ def y4
+ @virtual_y4 ||= @y4
+ end
+
+ def y4=(y4)
+ @virtual_y4 = y4
+ end
+
+
+ def width
+ @width ||= 200
+ end
+
+ def width=(width)
+ self.x2 = width
+ self.x3 = width
+ @width = width
+ end
+
+ def height
+ @height ||= 100
+ end
+
+ def height=(height)
+ self.y3 = height
+ self.y4 = height
+ @height = height
+ end
+
+ def size
+ @size ||= 100
+ end
+
+ def size=(size)
+ @size = self.width = self.height = size
+ end
+ end
+end
+
diff --git a/lib/ruby2d/camera/wrappers/text_wrapper.rb b/lib/ruby2d/camera/wrappers/text_wrapper.rb
new file mode 100644
index 0000000..ad96881
--- /dev/null
+++ b/lib/ruby2d/camera/wrappers/text_wrapper.rb
@@ -0,0 +1,84 @@
+# frozen_string_literal: true
+
+module Camera
+ # Wraps existing variables as well as adding new methods
+ # so that it can be handled by the Camera Module
+ # TODO: note that text could not be resized at the current iteration
+ # of Ruby2D so the math needs to be changed compensate for this.
+ # When Ruby2D gets updated to allow text resizing the math will need
+ # to be corrected again(see image_wrapper.rb for reference, that has
+ # math that allows for resizing)
+ module TextWrapped
+ @center = false
+
+ # Recalculates real coordiantes
+ # Use after changing variables
+ def redraw
+ angle = Camera.angle * (Math::PI / 180)
+ half_width = Window.width * 0.5
+ half_height = Window.height * 0.5
+ if center
+ offset_y = y + (Camera.zoom / 2)
+ offset_x = x + (Camera.zoom / 2)
+ else
+ offset_x = x + (width / Camera.zoom / 2)
+ offset_y = y + (height / Camera.zoom / 2)
+ end
+ @x = (((offset_x - Camera.x) * Math.cos(angle)) - ((offset_y - Camera.y) * Math.sin(angle))) \
+ * Camera.zoom + half_width - (width / 2)
+ @y = (((offset_x - Camera.x) * Math.sin(angle)) + ((offset_y - Camera.y) * Math.cos(angle))) \
+ * Camera.zoom + half_height - (height / 2)
+ @rotate = rotate + Camera.angle
+ @size = size * Camera.zoom
+ end
+
+ #Methods for moving the shape
+
+ # Wrappers for the coordinates so that
+ # they are handled by the Camera instead
+ # and for ease of programming
+ def x
+ @virtual_x ||= @x
+ end
+
+ def x=(x)
+ @virtual_x = x
+ end
+
+ def y
+ @virtual_y ||= @y
+ end
+
+ def y=(y)
+ @virtual_y = y
+ end
+
+ def x
+ @virtual_x ||= @x
+ end
+
+ def rotate
+ @virtual_rotate ||= @rotate
+ end
+
+ def rotate=(rotate)
+ @virtual_rotate = rotate
+ end
+
+ def size
+ @virtual_size ||= @size
+ end
+
+ def size=(size)
+ @virtual_size = size
+ end
+
+ def center
+ @center
+ end
+
+ def center=(center)
+ @center = center
+ end
+ end
+end
diff --git a/lib/ruby2d/camera/wrappers/triangle_wrapper.rb b/lib/ruby2d/camera/wrappers/triangle_wrapper.rb
new file mode 100644
index 0000000..0aba2c0
--- /dev/null
+++ b/lib/ruby2d/camera/wrappers/triangle_wrapper.rb
@@ -0,0 +1,90 @@
+# frozen_string_literal: true
+
+module Camera
+# Wraps existing variables as well as adding new methods
+# so that it can be handled by the Camera Module
+ module TriangleWrapped
+ # Recalculates real coordiantes
+ # Use after changing variables
+ def redraw
+ angle = Camera.angle * (Math::PI / 180)
+ half_width = Window.width * 0.5
+ half_height = Window.height * 0.5
+ @x1 = (((x + x1 - Camera.x) * Math.cos(angle)) - ((y + y1 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y1 = (((x + x1 - Camera.x) * Math.sin(angle)) + ((y + y1 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x2 = (((x + x2 - Camera.x) * Math.cos(angle)) - ((y + y2 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y2 = (((x + x2 - Camera.x) * Math.sin(angle)) + ((y + y2 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ @x3 = (((x + x3 - Camera.x) * Math.cos(angle)) - ((y + y3 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+ @y3 = (((x + x3 - Camera.x) * Math.sin(angle)) + ((y + y3 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+ end
+
+ #Methods for moving the shape
+ def x
+ @x ||= 0
+ end
+
+ def x=(x)
+ @x = x
+ end
+
+ def y
+ @y ||= 0
+ end
+
+ def y=(y)
+ @y = y
+ end
+
+ # Wrappers for the coordinates so that
+ # they are handled by the Camera instead
+ # and for ease of programming
+ def x1
+ @virtual_x1 ||= @x1
+ end
+
+ def x1=(x1)
+ @virtual_x1 = x1
+ end
+
+ def y1
+ @virtual_y1 ||= @y1
+ end
+
+ def y1=(y1)
+ @virtual_y1 = y1
+ end
+
+ def x2
+ @virtual_x2 ||= @x2
+ end
+
+ def x2=(x2)
+ @virtual_x2 = x2
+ end
+
+ def y2
+ @virtual_y2 ||= @y2
+ end
+
+ def y2=(y2)
+ @virtual_y2 = y2
+ end
+
+ def x3
+ @virtual_x3 ||= @x3
+ end
+
+ def x3=(x3)
+ @virtual_x3 = x3
+ end
+
+ def y3
+ @virtual_y3 ||= @y3
+ end
+
+ def y3=(y3)
+ @virtual_y3 = y3
+ end
+ end
+end
+
diff --git a/ruby2d-camera-0.1.0.gem b/ruby2d-camera-0.1.0.gem
new file mode 100644
index 0000000..3517cdf
--- /dev/null
+++ b/ruby2d-camera-0.1.0.gem
Binary files differ
diff --git a/ruby2d-camera.gemspec b/ruby2d-camera.gemspec
new file mode 100644
index 0000000..507e8c0
--- /dev/null
+++ b/ruby2d-camera.gemspec
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+require_relative "lib/ruby2d/camera/version"
+
+Gem::Specification.new do |spec|
+ spec.name = "ruby2d-camera"
+ spec.version = Ruby2d::Camera::VERSION
+ spec.authors = ["Tradam"]
+ spec.email = ["[email protected]"]
+
+ spec.summary = "A library for camera movement in the Ruby2D gem"
+ #spec.description = "TODO: Write a longer description or delete this line."
+ spec.homepage = "https://github.com/realtradam/ruby2d-camera"
+ spec.license = "MIT"
+ spec.required_ruby_version = ">= 2.4.0"
+
+ spec.metadata["allowed_push_host"] = "TODO: Set to 'https://mygemserver.com'"
+
+ spec.metadata["homepage_uri"] = spec.homepage
+ spec.metadata["source_code_uri"] = "https://github.com/realtradam/ruby2d-camera"
+ #spec.metadata["changelog_uri"] = "TODO: Put your gem's CHANGELOG.md URL here."
+
+ # Specify which files should be added to the gem when it is released.
+ # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
+ spec.files = Dir.chdir(File.expand_path(__dir__)) do
+ `git ls-files -z`.split("\x0").reject { |f| f.match(%r{\A(?:test|spec|features)/}) }
+ end
+ spec.bindir = "exe"
+ spec.executables = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
+ spec.require_paths = ["lib"]
+
+ # Uncomment to register a new dependency of your gem
+ # spec.add_dependency "example-gem", "~> 1.0"
+ spec.add_dependency "ruby2d", "~> 0.10"
+
+ # For more information and examples about making a new gem, checkout our
+ # guide at: https://bundler.io/guides/creating_gem.html
+end
diff --git a/test.rb b/test.rb
new file mode 100644
index 0000000..6c60c53
--- /dev/null
+++ b/test.rb
@@ -0,0 +1,10 @@
+require 'ruby2d'
+require 'ruby2d/camera'
+
+@tri = Ruby2D::Camera::Triangle.new
+
+update do
+ Ruby2D::Camera.redraw
+end
+
+show