Convert 5 blocks to JSON.

No functional change.

blocks/colour.js

@@ -40,12 +40,20 @@ Blockly.Blocks['colour_picker'] = {
    * @this Blockly.Block
    */
   init: function() {
-    this.setHelpUrl(Blockly.Msg.COLOUR_PICKER_HELPURL);
-    this.setColour(Blockly.Blocks.colour.HUE);
-    this.appendDummyInput()
-        .appendField(new Blockly.FieldColour('#ff0000'), 'COLOUR');
-    this.setOutput(true, 'Colour');
-    this.setTooltip(Blockly.Msg.COLOUR_PICKER_TOOLTIP);
+    this.jsonInit({
+      "message0": "%1",
+      "args0": [
+        {
+          "type": "field_colour",
+          "name": "COLOUR",
+          "colour": "#ff0000"
+        }
+      ],
+      "output": "Colour",
+      "colour": Blockly.Blocks.colour.HUE,
+      "tooltip": Blockly.Msg.COLOUR_PICKER_TOOLTIP,
+      "helpUrl": Blockly.Msg.COLOUR_PICKER_HELPURL
+    });
   }
 };
 
@@ -55,12 +63,13 @@ Blockly.Blocks['colour_random'] = {
    * @this Blockly.Block
    */
   init: function() {
-    this.setHelpUrl(Blockly.Msg.COLOUR_RANDOM_HELPURL);
-    this.setColour(Blockly.Blocks.colour.HUE);
-    this.appendDummyInput()
-        .appendField(Blockly.Msg.COLOUR_RANDOM_TITLE);
-    this.setOutput(true, 'Colour');
-    this.setTooltip(Blockly.Msg.COLOUR_RANDOM_TOOLTIP);
+    this.jsonInit({
+      "message0": Blockly.Msg.COLOUR_RANDOM_TITLE,
+      "output": "Colour",
+      "colour": Blockly.Blocks.colour.HUE,
+      "tooltip": Blockly.Msg.COLOUR_RANDOM_TOOLTIP,
+      "helpUrl": Blockly.Msg.COLOUR_RANDOM_HELPURL
+    });
   }
 };
 

blocks/lists.js

@@ -40,12 +40,13 @@ Blockly.Blocks['lists_create_empty'] = {
    * @this Blockly.Block
    */
   init: function() {
-    this.setHelpUrl(Blockly.Msg.LISTS_CREATE_EMPTY_HELPURL);
-    this.setColour(Blockly.Blocks.lists.HUE);
-    this.setOutput(true, 'Array');
-    this.appendDummyInput()
-        .appendField(Blockly.Msg.LISTS_CREATE_EMPTY_TITLE);
-    this.setTooltip(Blockly.Msg.LISTS_CREATE_EMPTY_TOOLTIP);
+    this.jsonInit({
+      "message0": Blockly.Msg.LISTS_CREATE_EMPTY_TITLE,
+      "output": "Array",
+      "colour": Blockly.Blocks.lists.HUE,
+      "tooltip": Blockly.Msg.LISTS_CREATE_EMPTY_TOOLTIP,
+      "helpUrl": Blockly.Msg.LISTS_CREATE_EMPTY_HELPURL
+    });
   }
 };
 

blocks/logic.js

@@ -389,15 +389,23 @@ Blockly.Blocks['logic_boolean'] = {
    * @this Blockly.Block
    */
   init: function() {
-    var BOOLEANS =
-        [[Blockly.Msg.LOGIC_BOOLEAN_TRUE, 'TRUE'],
-         [Blockly.Msg.LOGIC_BOOLEAN_FALSE, 'FALSE']];
-    this.setHelpUrl(Blockly.Msg.LOGIC_BOOLEAN_HELPURL);
-    this.setColour(Blockly.Blocks.logic.HUE);
-    this.setOutput(true, 'Boolean');
-    this.appendDummyInput()
-        .appendField(new Blockly.FieldDropdown(BOOLEANS), 'BOOL');
-    this.setTooltip(Blockly.Msg.LOGIC_BOOLEAN_TOOLTIP);
+    this.jsonInit({
+      "message0": "%1",
+      "args0": [
+        {
+          "type": "field_dropdown",
+          "name": "BOOL",
+          "options": [
+            [Blockly.Msg.LOGIC_BOOLEAN_TRUE, "TRUE"],
+            [Blockly.Msg.LOGIC_BOOLEAN_FALSE, "FALSE"]
+          ]
+        }
+      ],
+      "output": "Boolean",
+      "colour": Blockly.Blocks.logic.HUE,
+      "tooltip": Blockly.Msg.LOGIC_BOOLEAN_TOOLTIP,
+      "helpUrl": Blockly.Msg.LOGIC_BOOLEAN_HELPURL
+    });
   }
 };
 
@@ -407,12 +415,13 @@ Blockly.Blocks['logic_null'] = {
    * @this Blockly.Block
    */
   init: function() {
-    this.setHelpUrl(Blockly.Msg.LOGIC_NULL_HELPURL);
-    this.setColour(Blockly.Blocks.logic.HUE);
-    this.setOutput(true);
-    this.appendDummyInput()
-        .appendField(Blockly.Msg.LOGIC_NULL);
-    this.setTooltip(Blockly.Msg.LOGIC_NULL_TOOLTIP);
+    this.jsonInit({
+      "message0": Blockly.Msg.LOGIC_NULL,
+      "output": null,
+      "colour": Blockly.Blocks.logic.HUE,
+      "tooltip": Blockly.Msg.LOGIC_NULL_TOOLTIP,
+      "helpUrl": Blockly.Msg.LOGIC_NULL_HELPURL
+    });
   }
 };