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| author | Amir Rajan <[email protected]> | 2020-02-26 11:56:58 -0600 |
|---|---|---|
| committer | GitHub <[email protected]> | 2020-02-26 11:56:58 -0600 |
| commit | 07468bf3f309c21ea3f7fcf47195ca275177dc7f (patch) | |
| tree | 080ed43e192c4b7aa3f30335650ea1e90c8faae8 | |
| parent | 053919bbcb2a94054f243dc9fe5754f9daa595b3 (diff) | |
| download | dragonruby-game-toolkit-contrib-07468bf3f309c21ea3f7fcf47195ca275177dc7f.tar.gz dragonruby-game-toolkit-contrib-07468bf3f309c21ea3f7fcf47195ca275177dc7f.zip | |
Create grid.rb
| -rw-r--r-- | dragon/grid.rb | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/dragon/grid.rb b/dragon/grid.rb new file mode 100644 index 0000000..ff6676a --- /dev/null +++ b/dragon/grid.rb @@ -0,0 +1,92 @@ +# coding: utf-8 +# Copyright 2019 DragonRuby LLC +# MIT License +# grid.rb has been released under MIT (*only this file*). + +module GTK + class Grid + include Serialize + SCREEN_Y_DIRECTION = -1.0 + + attr_accessor :bottom, :left, :right, :top, + :rect, :origin_x, :origin_y, :center_x, :center_y, + :name, :ffi_draw + + def initialize ffi_draw + @ffi_draw = ffi_draw + origin_bottom_left! + end + + def transform_x x + @origin_x + x + end + + def untransform_x x + x - @origin_x + end + + def untransform_y y + @origin_y + y * SCREEN_Y_DIRECTION + end + + def transform_y y + @origin_y + y * SCREEN_Y_DIRECTION + end + + def origin_bottom_left! + return if @name == :bottom_left + @name = :bottom_left + @origin_x = 0.0 + @origin_y = 720.0 + @left = 0.0 + @right = 1280.0 + @top = 720.0 + @bottom = 0.0 + @center_x = 640.0 + @center_y = 360.0 + @rect = [@left, @bottom, 1280.0, 720.0].rect + @center = [@center_x, @center_y].point + @ffi_draw.set_gtk_grid @origin_x, @origin_y, SCREEN_Y_DIRECTION + end + + def origin_center! + return if @name == :center + @name = :center + @origin_x = 640.0 + @origin_y = 360.0 + @left = -640.0 + @right = 640.0 + @top = 360.0 + @bottom = -360.0 + @center_x = 0.0 + @center_y = 0.0 + @rect = [@left, @bottom, 1280.0, 720.0].rect + @center = [@center_x, @center_y].point + @ffi_draw.set_gtk_grid @origin_x, @origin_y, SCREEN_Y_DIRECTION + end + + def w + 1280.0 + end + + def w_half + 640.0 + end + + def h + 720.0 + end + + def h_half + 360.0 + end + + def center + @center + end + + def bottom_right + [@right, @bottom].point + end + end +end |