From 6590652d9e99f124b171ec78e83222efafd85949 Mon Sep 17 00:00:00 2001
From: krzys-h <krzys_h@interia.pl>
Date: Sat, 21 Nov 2015 16:31:22 +0100
Subject: [PATCH] Added commandline CBot interpreter (for testing purposes)

---
 .gitignore                       |  3 +-
 src/CBot/.gitignore              |  1 -
 test/CMakeLists.txt              |  3 +
 test/cbot/CMakeLists.txt         |  1 +
 test/cbot/console/CMakeLists.txt | 22 ++++++++
 test/cbot/console/main.cpp       | 94 ++++++++++++++++++++++++++++++++
 6 files changed, 122 insertions(+), 2 deletions(-)
 delete mode 100644 src/CBot/.gitignore
 create mode 100644 test/cbot/CMakeLists.txt
 create mode 100644 test/cbot/console/CMakeLists.txt
 create mode 100644 test/cbot/console/main.cpp

diff --git a/.gitignore b/.gitignore
index 885f5fe8..65c0087a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,10 +16,11 @@ Makefile
 
 # Ignore targets
 /colobot
+/src/CBot/libCBot.so
 
 # Ignore local data
 /colobot.ini
-/savegame
+/saves
 
 # Standard build directory
 /build
diff --git a/src/CBot/.gitignore b/src/CBot/.gitignore
deleted file mode 100644
index 4c80252f..00000000
--- a/src/CBot/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-libCBot.so
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index c30abe89..cd4c320b 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -6,6 +6,9 @@ set(CMAKE_CXX_FLAGS_DEBUG ${COLOBOT_CXX_FLAGS_DEBUG})
 # Unit tests
 add_subdirectory(unit)
 
+# CBot tests
+add_subdirectory(cbot)
+
 
 if(COLOBOT_LINT_BUILD)
     add_fake_header_sources("test")
diff --git a/test/cbot/CMakeLists.txt b/test/cbot/CMakeLists.txt
new file mode 100644
index 00000000..d5de1f4e
--- /dev/null
+++ b/test/cbot/CMakeLists.txt
@@ -0,0 +1 @@
+add_subdirectory(console)
\ No newline at end of file
diff --git a/test/cbot/console/CMakeLists.txt b/test/cbot/console/CMakeLists.txt
new file mode 100644
index 00000000..e33a1085
--- /dev/null
+++ b/test/cbot/console/CMakeLists.txt
@@ -0,0 +1,22 @@
+# Sources
+set(CBOT_CONSOLE_SOURCES
+    main.cpp
+)
+
+# Includes
+include_directories(
+        ${COLOBOT_LOCAL_INCLUDES}
+        ${CMAKE_CURRENT_SOURCE_DIR}
+        ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+# Libraries
+set(LIBS
+    CBot
+    colobotbase # Needed for error strings (TODO: why are they on Colobot side? :/)
+    ${COLOBOT_LIBS} # Needed for colobotbase
+)
+# Targets
+
+add_executable(CBot_console ${CBOT_CONSOLE_SOURCES})
+target_link_libraries(CBot_console ${LIBS})
\ No newline at end of file
diff --git a/test/cbot/console/main.cpp b/test/cbot/console/main.cpp
new file mode 100644
index 00000000..83e06dea
--- /dev/null
+++ b/test/cbot/console/main.cpp
@@ -0,0 +1,94 @@
+#include <iostream>
+#include <memory>
+
+#include "common/restext.h"
+#include "CBot/CBotDll.h"
+
+CBotTypResult cMessage(CBotVar* &var, void* user)
+{
+    if ( var == nullptr )  return CBotTypResult(CBotErrLowParam);
+    if ( var->GetType() != CBotTypString &&
+         var->GetType() >  CBotTypDouble )  return CBotTypResult(CBotErrBadNum);
+    var = var->GetNext();
+
+    if ( var == nullptr )  return CBotTypResult(CBotTypFloat);
+    return CBotTypResult(CBotErrOverParam);
+}
+
+bool rMessage(CBotVar* var, CBotVar* result, int& exception, void* user)
+{
+    CBotString cbs = var->GetValString();
+    const char* message = cbs; // Don't ask me why, but it doesn't work if you write it on a single line
+
+    std::cout << message << std::endl;
+
+    return true;
+}
+
+int main(int argc, char* argv[])
+{
+    // Read program code from stdin
+    std::string code = "";
+    std::string line;
+    while (std::getline(std::cin, line))
+    {
+        code += line;
+        code += "\n";
+    }
+
+    // Error message strings are stored on Colobot side (meh!) so let's initialize that
+    InitializeRestext();
+
+    // Initialize the CBot engine, add standard library functions
+    CBotProgram::AddFunction("message", rMessage, cMessage);
+
+    // Compile the program
+    CBotStringArray externFunctions;
+    std::unique_ptr<CBotProgram> program{new CBotProgram(nullptr)};
+    if (!program->Compile(code.c_str(), externFunctions, nullptr))
+    {
+        int error, cursor1, cursor2;
+        program->GetError(error, cursor1, cursor2);
+        std::string errorStr;
+        GetResource(RES_CBOT, error, errorStr);
+        std::cerr << "COMPILE ERROR: " << errorStr << " (code: " << error << ") @ " << cursor1 << " - " << cursor2 << std::endl;
+        return 1;
+    }
+
+    // Execute all compiled functions marked as "extern"
+    if (externFunctions.GetSize() == 0)
+    {
+        std::cerr << "NO EXTERN FUNCTIONS FOUND";
+        return 2;
+    }
+    bool runErrors = false;
+    for (int i = 0; i < externFunctions.GetSize(); i++)
+    {
+        const char* func = externFunctions[i];
+        if (!program->Start(func))
+        {
+            std::cerr << "FAILED TO START: " << func << std::endl;
+            continue;
+        }
+
+        std::cerr << "Running program: " << func << std::endl;
+
+        while (!program->Run(nullptr)); // Run the program
+
+        int error, cursor1, cursor2;
+        program->GetError(error, cursor1, cursor2);
+        if (error != 0)
+        {
+            std::string errorStr;
+            GetResource(RES_CBOT, error, errorStr);
+            std::cerr << "RUNTIME ERROR: " << errorStr << " (code: " << error << ") @ " << cursor1 << " - " << cursor2 << std::endl;
+            runErrors = true;
+        }
+        else
+        {
+            std::cerr << "Program finished." << std::endl;
+        }
+    }
+
+    return runErrors ? 3 : 0;
+}
\ No newline at end of file