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-rw-r--r--lib/camera/camera.rb108
-rw-r--r--lib/camera/wrappers/image_wrapper.rb73
-rw-r--r--lib/camera/wrappers/square_wrapper.rb73
-rw-r--r--lib/camera/wrappers/triangle_wrapper.rb90
4 files changed, 344 insertions, 0 deletions
diff --git a/lib/camera/camera.rb b/lib/camera/camera.rb
new file mode 100644
index 0000000..e5fd254
--- /dev/null
+++ b/lib/camera/camera.rb
@@ -0,0 +1,108 @@
+# frozen_string_literal: true
+
+Dir[File.join(__dir__, 'wrappers', '*.rb')].sort.each { |file| require file }
+
+# Handles rendering objects relative
+# to a camera location
+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)
+ case item
+ when Triangle
+ item.extend Camera::TriangleWrapped
+ puts item.class
+ when Square
+ item.extend Camera::SquareWrapped
+ 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
+ objects.push(item) unless objects.include?(item)
+ end
+
+ # Redraw all objects that
+ # are tracked by the Camera
+ def self.update
+ objects.each(&:update)
+ 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
diff --git a/lib/camera/wrappers/image_wrapper.rb b/lib/camera/wrappers/image_wrapper.rb
new file mode 100644
index 0000000..3f603d4
--- /dev/null
+++ b/lib/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 update
+ 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/camera/wrappers/square_wrapper.rb b/lib/camera/wrappers/square_wrapper.rb
new file mode 100644
index 0000000..6cfd3f7
--- /dev/null
+++ b/lib/camera/wrappers/square_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 SquareWrapped
+ # Recalculates real coordiantes
+ # Use after changing variables
+ def update
+ 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/camera/wrappers/triangle_wrapper.rb b/lib/camera/wrappers/triangle_wrapper.rb
new file mode 100644
index 0000000..46d8f35
--- /dev/null
+++ b/lib/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 update
+ 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 ||= x1
+ end
+
+ def x=(x)
+ @x = x
+ end
+
+ def y
+ @y ||= y1
+ 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
+
generated by cgit v1.2.3 (git 2.39.1) at 2026-04-14 19:18:29 +0000