Initial commit

Author: mauro-oto

app/lowrez.rb

@@ -0,0 +1,159 @@
+# Emulation of a 64x64 canvas. Don't change this file unless you know what you're doing :-)
+# Head over to main.rb and study the code there.
+
+LOWREZ_SIZE            = 64
+LOWREZ_ZOOM            = 10
+LOWREZ_ZOOMED_SIZE     = LOWREZ_SIZE * LOWREZ_ZOOM
+LOWREZ_X_OFFSET        = (1280 - LOWREZ_ZOOMED_SIZE).half
+LOWREZ_Y_OFFSET        = ( 720 - LOWREZ_ZOOMED_SIZE).half
+
+LOWREZ_FONT_XL         = -1
+LOWREZ_FONT_XL_HEIGHT  = 20
+
+LOWREZ_FONT_LG         = -3.5
+LOWREZ_FONT_LG_HEIGHT  = 15
+
+LOWREZ_FONT_MD         = -6
+LOWREZ_FONT_MD_HEIGHT  = 10
+
+LOWREZ_FONT_SM         = -8.5
+LOWREZ_FONT_SM_HEIGHT  = 5
+
+class LowrezOutputs
+  attr_accessor :width, :height
+
+  def initialize args
+    @args = args
+    @background_color ||= [0, 0, 0]
+    @args.outputs.background_color = @background_color
+  end
+
+  def background_color
+    @background_color ||= [0, 0, 0]
+  end
+
+  def background_color= opts
+    @background_color = opts
+    @args.outputs.background_color = @background_color
+    @args.render_target(:lowrez).solids << [0, 0, LOWREZ_SIZE, LOWREZ_SIZE, @background_color]
+  end
+
+  def solids
+    @args.render_target(:lowrez).solids
+  end
+
+  def borders
+    @args.render_target(:lowrez).borders
+  end
+
+  def sprites
+    @args.render_target(:lowrez).sprites
+  end
+
+  def labels
+    @args.render_target(:lowrez).labels
+  end
+
+  def default_label
+    {
+      x: 0,
+      y: 63,
+      text: "",
+      size_enum: LOWREZ_FONT_SM,
+      alignment_enum: 0,
+      r: 0,
+      g: 0,
+      b: 0,
+      a: 255,
+      font: 'fonts/lowrez.ttf'
+    }
+  end
+
+  def lines
+    @args.render_target(:lowrez).lines
+  end
+
+  def primitives
+    @args.render_target(:lowrez).primitives
+  end
+
+  def click
+    return nil unless @args.inputs.mouse.click
+    mouse
+  end
+
+  def mouse_click
+    click
+  end
+
+  def mouse_down
+    @args.inputs.mouse.down
+  end
+
+  def mouse_up
+    @args.inputs.mouse.up
+  end
+
+  def mouse
+    [
+      ((@args.inputs.mouse.x - LOWREZ_X_OFFSET).idiv(LOWREZ_ZOOM)),
+      ((@args.inputs.mouse.y - LOWREZ_Y_OFFSET).idiv(LOWREZ_ZOOM))
+    ]
+  end
+
+  def mouse_position
+    mouse
+  end
+
+  def keyboard
+    @args.inputs.keyboard
+  end
+end
+
+class GTK::Args
+  def init_lowrez
+    return if @lowrez
+    @lowrez = LowrezOutputs.new self
+  end
+
+  def lowrez
+    @lowrez
+  end
+end
+
+module GTK
+  class Runtime
+    alias_method :__original_tick_core__, :tick_core unless Runtime.instance_methods.include?(:__original_tick_core__)
+
+    def tick_core
+      @args.init_lowrez
+      __original_tick_core__
+      @args.render_target(:lowrez)
+           .labels
+           .each do |l|
+        l.text = l.text.downcase
+        l.y  += 1
+      end
+
+      @args.render_target(:lowrez)
+           .lines
+           .each do |l|
+        l.y  += 1
+        l.y2 += 1
+        l.y2 += 1 if l.y1 != l.y2
+        l.x2 += 1 if l.x1 != l.x2
+      end
+
+      @args.outputs
+           .sprites << { x: 320,
+                         y: 40,
+                         w: 640,
+                         h: 640,
+                         source_x: 0,
+                         source_y: 0,
+                         source_w: 64,
+                         source_h: 64,
+                         path: :lowrez }
+    end
+  end
+end