From 3e019cb28b2a1ea1e369b490c54adeba0011db6a Mon Sep 17 00:00:00 2001
From: Tom Black <blacktm@gmail.com>
Date: Sun, 27 Nov 2016 23:13:26 -0500
Subject: Initial Opal Support

---
 ext/ruby2d/ruby2d-opal.rb | 121 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 ext/ruby2d/ruby2d-opal.rb

diff --git a/ext/ruby2d/ruby2d-opal.rb b/ext/ruby2d/ruby2d-opal.rb
new file mode 100644
index 0000000..ef33f9a
--- /dev/null
+++ b/ext/ruby2d/ruby2d-opal.rb
@@ -0,0 +1,121 @@
+# ruby2d-opal.rb
+
+$SELF = nil
+
+`
+// ruby2d.js
+
+// @type_id values for rendering
+const $R2D_TRIANGLE = 1;
+const $R2D_QUAD     = 2;
+const $R2D_IMAGE    = 3;
+const $R2D_SPRITE   = 4;
+const $R2D_TEXT     = 5;
+
+function update() {
+  #{$SELF.mouse_x = `win.mouse.x`};
+  #{$SELF.mouse_y = `win.mouse.y`};
+  #{$SELF.update_callback};
+}
+
+function render() {
+  
+  var objects = #{$SELF.objects};
+  
+  for (var i = 0; i < objects.length; i++) {
+    
+    var el = objects[i];
+    
+    switch (el.type_id) {
+      
+      case $R2D_TRIANGLE:
+        
+        S2D.DrawTriangle(
+          el.x1, el.y1, el.c1.r, el.c1.g, el.c1.b, el.c1.a,
+          el.x2, el.y2, el.c2.r, el.c2.g, el.c2.b, el.c2.a,
+          el.x3, el.y3, el.c3.r, el.c3.g, el.c3.b, el.c3.a
+        );
+        break;
+      
+      case $R2D_QUAD:
+        S2D.DrawQuad(
+          el.x1, el.y1, el.c1.r, el.c1.g, el.c1.b, el.c1.a,
+          el.x2, el.y2, el.c2.r, el.c2.g, el.c2.b, el.c2.a,
+          el.x3, el.y3, el.c3.r, el.c3.g, el.c3.b, el.c3.a,
+          el.x4, el.y4, el.c4.r, el.c4.g, el.c4.b, el.c4.a
+        );
+        break;
+      
+      case $R2D_IMAGE:
+        if (el.data == Opal.nil) {
+          el.data = S2D.CreateImage(el.path);
+        }
+        
+        el.data.x = el.x;
+        el.data.y = el.y;
+        
+        if (el.width  != Opal.nil) el.data.width  = el.width;
+        if (el.height != Opal.nil) el.data.height = el.height;
+        
+        S2D.DrawImage(el.data);
+        break;
+      
+      case $R2D_SPRITE:
+        /*
+        if (el.data == Opal.nil) {
+          el.data = S2D.CreateSprite(el.path);
+        }
+        
+        el.data.x = el.x;
+        el.data.y = el.y;
+        
+        S2D.DrawSprite(el.data);
+        */
+        break;
+      
+      case $R2D_TEXT:
+        /*
+        if (el.data == Opal.nil) {
+          el.data = S2D.CreateText(el.font, el.text, el.size);
+        }
+        
+        el.data.x = el.x;
+        el.data.y = el.y;
+        
+        S2D_SetText(el.data, el.text);
+        
+        S2D.DrawText(el.data);
+        */
+        break;
+    }
+    
+  }
+}
+`
+
+module Ruby2D
+  class Window
+    def show
+      $SELF = self
+      
+      if $SELF.diagnostics
+        # `S2D.Diagnostics(true);`
+      end
+      
+      `win = S2D.CreateWindow(
+        #{$SELF.title}, #{$SELF.width}, #{$SELF.height}, update, render, "ruby2d-app", {}
+      );`
+      
+      # TODO: Read flags, viewport w/h
+      # `
+      # win.viewport.width  = #{$SELF.viewport_width};
+      # win.viewport.height = #{$SELF.viewport_height};
+      # win.on_key          = on_key;
+      # win.on_mouse        = on_mouse;
+      # win.on_controller   = on_controller;
+      # `
+      
+      `S2D.Show(win);`
+    end
+  end
+end
-- 
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