Implement control_repeat

Author: adazem009

src/dev/blocks/controlblocks.cpp

@@ -23,6 +23,7 @@ std::string ControlBlocks::description() const
 void ControlBlocks::registerBlocks(IEngine *engine)
 {
     engine->addCompileFunction(this, "control_forever", &compileForever);
+    engine->addCompileFunction(this, "control_repeat", &compileRepeat);
 }
 
 CompilerValue *ControlBlocks::compileForever(Compiler *compiler)
@@ -32,3 +33,10 @@ CompilerValue *ControlBlocks::compileForever(Compiler *compiler)
     compiler->moveToWhileLoop(compiler->addConstValue(true), substack ? substack->valueBlock() : nullptr);
     return nullptr;
 }
+
+CompilerValue *ControlBlocks::compileRepeat(Compiler *compiler)
+{
+    auto substack = compiler->input("SUBSTACK");
+    compiler->moveToRepeatLoop(compiler->addInput("TIMES"), substack ? substack->valueBlock() : nullptr);
+    return nullptr;
+}

src/dev/blocks/controlblocks.h

@@ -17,6 +17,7 @@ class ControlBlocks : public IExtension
 
     private:
         static CompilerValue *compileForever(Compiler *compiler);
+        static CompilerValue *compileRepeat(Compiler *compiler);
 };
 
 } // namespace libscratchcpp

test/dev/blocks/control_blocks_test.cpp

@@ -68,3 +68,40 @@ TEST_F(ControlBlocksTest, Forever)
         }
     }
 }
+
+TEST_F(ControlBlocksTest, Repeat)
+{
+    auto target = std::make_shared<Sprite>();
+
+    {
+        ScriptBuilder builder(m_extension.get(), m_engine, target);
+
+        builder.addBlock("control_repeat");
+        auto substack = std::make_shared<Block>("", "test_print_test");
+        builder.addObscuredInput("SUBSTACK", substack);
+        builder.addValueInput("TIMES", 5);
+
+        builder.build();
+
+        testing::internal::CaptureStdout();
+        builder.run();
+        ASSERT_EQ(testing::internal::GetCapturedStdout(), "test\ntest\ntest\ntest\ntest\n");
+    }
+
+    m_engine->clear();
+    target = std::make_shared<Sprite>();
+
+    {
+        ScriptBuilder builder(m_extension.get(), m_engine, target);
+        builder.addBlock("control_repeat");
+        builder.addValueInput("TIMES", "Infinity");
+
+        builder.build();
+        m_engine->start();
+
+        for (int i = 0; i < 2; i++) {
+            m_engine->step();
+            ASSERT_TRUE(m_engine->isRunning());
+        }
+    }
+}