diff options
| author | realtradam <[email protected]> | 2021-05-04 01:10:27 -0400 |
|---|---|---|
| committer | realtradam <[email protected]> | 2021-05-04 01:10:27 -0400 |
| commit | e99176e14a5a5b8c46bba0591010f7e55c535981 (patch) | |
| tree | 538f21932b9e7e898907943d404dd46fed999905 /lib | |
| download | tileset-map-editor-e99176e14a5a5b8c46bba0591010f7e55c535981.tar.gz tileset-map-editor-e99176e14a5a5b8c46bba0591010f7e55c535981.zip | |
init
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/camera/camera.rb | 125 | ||||
| -rw-r--r-- | lib/camera/wrappers/circle_wrapper.rb | 47 | ||||
| -rw-r--r-- | lib/camera/wrappers/image_wrapper.rb | 73 | ||||
| -rw-r--r-- | lib/camera/wrappers/line_wrapper.rb | 91 | ||||
| -rw-r--r-- | lib/camera/wrappers/quad_wrapper.rb | 108 | ||||
| -rw-r--r-- | lib/camera/wrappers/rectangle_wrapper.rb | 138 | ||||
| -rw-r--r-- | lib/camera/wrappers/sprite_wrapper.rb | 86 | ||||
| -rw-r--r-- | lib/camera/wrappers/square_wrapper.rb | 146 | ||||
| -rw-r--r-- | lib/camera/wrappers/text_wrapper.rb | 84 | ||||
| -rw-r--r-- | lib/camera/wrappers/triangle_wrapper.rb | 90 |
10 files changed, 988 insertions, 0 deletions
diff --git a/lib/camera/camera.rb b/lib/camera/camera.rb new file mode 100644 index 0000000..64e2095 --- /dev/null +++ b/lib/camera/camera.rb @@ -0,0 +1,125 @@ +# 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 + 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 + 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(&:redraw) + 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 diff --git a/lib/camera/wrappers/circle_wrapper.rb b/lib/camera/wrappers/circle_wrapper.rb new file mode 100644 index 0000000..a7db05a --- /dev/null +++ b/lib/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/camera/wrappers/image_wrapper.rb b/lib/camera/wrappers/image_wrapper.rb new file mode 100644 index 0000000..9e4b163 --- /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 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/camera/wrappers/line_wrapper.rb b/lib/camera/wrappers/line_wrapper.rb new file mode 100644 index 0000000..7d4d944 --- /dev/null +++ b/lib/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/camera/wrappers/quad_wrapper.rb b/lib/camera/wrappers/quad_wrapper.rb new file mode 100644 index 0000000..477dbfd --- /dev/null +++ b/lib/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/camera/wrappers/rectangle_wrapper.rb b/lib/camera/wrappers/rectangle_wrapper.rb new file mode 100644 index 0000000..93e888a --- /dev/null +++ b/lib/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/camera/wrappers/sprite_wrapper.rb b/lib/camera/wrappers/sprite_wrapper.rb new file mode 100644 index 0000000..d38c0bc --- /dev/null +++ b/lib/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/camera/wrappers/square_wrapper.rb b/lib/camera/wrappers/square_wrapper.rb new file mode 100644 index 0000000..2215a30 --- /dev/null +++ b/lib/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/camera/wrappers/text_wrapper.rb b/lib/camera/wrappers/text_wrapper.rb new file mode 100644 index 0000000..ad96881 --- /dev/null +++ b/lib/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/camera/wrappers/triangle_wrapper.rb b/lib/camera/wrappers/triangle_wrapper.rb new file mode 100644 index 0000000..0aba2c0 --- /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 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 + |
