Implement sensing_mousedown block

Author: adazem009

src/blocks/sensingblocks.cpp

@@ -43,6 +43,7 @@ void SensingBlocks::registerBlocks(IEngine *engine)
     engine->addCompileFunction(this, "sensing_askandwait", &compileAskAndWait);
     engine->addCompileFunction(this, "sensing_answer", &compileAnswer);
     engine->addCompileFunction(this, "sensing_keypressed", &compileKeyPressed);
+    engine->addCompileFunction(this, "sensing_mousedown", &compileMouseDown);
 }
 
 void SensingBlocks::onInit(IEngine *engine)
@@ -167,6 +168,11 @@ CompilerValue *SensingBlocks::compileKeyPressed(Compiler *compiler)
     return compiler->addFunctionCallWithCtx("sensing_keypressed", Compiler::StaticType::Bool, { Compiler::StaticType::String }, { key });
 }
 
+CompilerValue *SensingBlocks::compileMouseDown(Compiler *compiler)
+{
+    return compiler->addFunctionCallWithCtx("sensing_mousedown", Compiler::StaticType::Bool);
+}
+
 void SensingBlocks::onAnswer(const std::string &answer)
 {
     // https://github.com/scratchfoundation/scratch-vm/blob/6055823f203a696165084b873e661713806583ec/src/blocks/scratch3_sensing.js#L99-L115
@@ -328,3 +334,8 @@ extern "C" bool sensing_keypressed(ExecutionContext *ctx, const StringPtr *key)
     std::string u8name = utf8::utf16to8(std::u16string(key->data));
     return ctx->engine()->keyPressed(u8name);
 }
+
+extern "C" bool sensing_mousedown(ExecutionContext *ctx)
+{
+    return ctx->engine()->mousePressed();
+}

src/blocks/sensingblocks.h

@@ -49,6 +49,7 @@ class SensingBlocks : public IExtension
         static CompilerValue *compileAskAndWait(Compiler *compiler);
         static CompilerValue *compileAnswer(Compiler *compiler);
         static CompilerValue *compileKeyPressed(Compiler *compiler);
+        static CompilerValue *compileMouseDown(Compiler *compiler);
 
         static void onAnswer(const std::string &answer);
         static void enqueueAsk(const std::string &question, Thread *thread);

test/blocks/sensing_blocks_test.cpp

@@ -1229,3 +1229,29 @@ TEST_F(SensingBlocksTest, KeyPressed_M)
     ASSERT_FALSE(value_toBool(&value));
     value_free(&value);
 }
+
+TEST_F(SensingBlocksTest, MouseDown)
+{
+    auto targetMock = std::make_shared<TargetMock>();
+    targetMock->setEngine(&m_engineMock);
+
+    ScriptBuilder builder(m_extension.get(), m_engine, targetMock);
+    builder.addBlock("sensing_mousedown");
+    Block *block = builder.currentBlock();
+
+    Compiler compiler(&m_engineMock, targetMock.get());
+    auto code = compiler.compile(block, Compiler::CodeType::Reporter);
+    Script script(targetMock.get(), block, &m_engineMock);
+    script.setCode(code);
+    Thread thread(targetMock.get(), &m_engineMock, &script);
+
+    EXPECT_CALL(m_engineMock, mousePressed()).WillOnce(Return(true));
+    ValueData value = thread.runReporter();
+    ASSERT_TRUE(value_toBool(&value));
+    value_free(&value);
+
+    EXPECT_CALL(m_engineMock, mousePressed()).WillOnce(Return(false));
+    value = thread.runReporter();
+    ASSERT_FALSE(value_toBool(&value));
+    value_free(&value);
+}