GamePlay/gameplay/src/lua/lua_Gamepad.cpp

#include "Base.h"
#include "ScriptController.h"
#include "Gamepad.h"
#include "lua_Gamepad.h"
#include "lua_Global.h"

namespace gameplay
{

void luaRegister_Gamepad()
{
    ScriptController* sc = ScriptController::getInstance();

    const luaL_Reg lua_members[] = 
    {
        {"draw", lua_Gamepad_draw},
        {"getButtonCount", lua_Gamepad_getButtonCount},
        {"getButtonState", lua_Gamepad_getButtonState},
        {"getForm", lua_Gamepad_getForm},
        {"getId", lua_Gamepad_getId},
        {"getJoystickCount", lua_Gamepad_getJoystickCount},
        {"getJoystickValue", lua_Gamepad_getJoystickValue},
        {"isJoystickActive", lua_Gamepad_isJoystickActive},
        {"isVirtual", lua_Gamepad_isVirtual},
        {"update", lua_Gamepad_update},
        {NULL, NULL}
    };
    const luaL_Reg* lua_statics = NULL;
    std::vector<std::string> scopePath;

    sc->registerClass("Gamepad", lua_members, NULL, NULL, lua_statics, scopePath);
}

static Gamepad* getInstance(lua_State* state)
{
    void* userdata = luaL_checkudata(state, 1, "Gamepad");
    luaL_argcheck(state, userdata != NULL, 1, "'Gamepad' expected.");
    return (Gamepad*)((ScriptController::LuaObject*)userdata)->instance;
}

int lua_Gamepad_draw(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA || lua_type(state, 1) == LUA_TNIL))
            {
                Gamepad* instance = getInstance(state);
                instance->draw();
                
                return 0;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_Gamepad_getButtonCount(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA || lua_type(state, 1) == LUA_TNIL))
            {
                Gamepad* instance = getInstance(state);
                unsigned int result = instance->getButtonCount();

                // Push the return value onto the stack.
                lua_pushunsigned(state, result);

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_Gamepad_getButtonState(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 2:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA || lua_type(state, 1) == LUA_TNIL) &&
                lua_type(state, 2) == LUA_TNUMBER)
            {
                // Get parameter 1 off the stack.
                unsigned int param1 = (unsigned int)luaL_checkunsigned(state, 2);

                Gamepad* instance = getInstance(state);
                Gamepad::ButtonState result = instance->getButtonState(param1);

                // Push the return value onto the stack.
                lua_pushstring(state, lua_stringFromEnum_GamepadButtonState(result));

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 2).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_Gamepad_getForm(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA || lua_type(state, 1) == LUA_TNIL))
            {
                Gamepad* instance = getInstance(state);
                void* returnPtr = (void*)instance->getForm();
                if (returnPtr)
                {
                    ScriptController::LuaObject* object = (ScriptController::LuaObject*)lua_newuserdata(state, sizeof(ScriptController::LuaObject));
                    object->instance = returnPtr;
                    object->owns = false;
                    luaL_getmetatable(state, "Form");
                    lua_setmetatable(state, -2);
                }
                else
                {
                    lua_pushnil(state);
                }

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_Gamepad_getId(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA || lua_type(state, 1) == LUA_TNIL))
            {
                Gamepad* instance = getInstance(state);
                const char* result = instance->getId();

                // Push the return value onto the stack.
                lua_pushstring(state, result);

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_Gamepad_getJoystickCount(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA || lua_type(state, 1) == LUA_TNIL))
            {
                Gamepad* instance = getInstance(state);
                unsigned int result = instance->getJoystickCount();

                // Push the return value onto the stack.
                lua_pushunsigned(state, result);

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_Gamepad_getJoystickValue(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 2:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA || lua_type(state, 1) == LUA_TNIL) &&
                lua_type(state, 2) == LUA_TNUMBER)
            {
                // Get parameter 1 off the stack.
                unsigned int param1 = (unsigned int)luaL_checkunsigned(state, 2);

                Gamepad* instance = getInstance(state);
                void* returnPtr = (void*)&(instance->getJoystickValue(param1));
                if (returnPtr)
                {
                    ScriptController::LuaObject* object = (ScriptController::LuaObject*)lua_newuserdata(state, sizeof(ScriptController::LuaObject));
                    object->instance = returnPtr;
                    object->owns = false;
                    luaL_getmetatable(state, "Vector2");
                    lua_setmetatable(state, -2);
                }
                else
                {
                    lua_pushnil(state);
                }

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 2).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_Gamepad_isJoystickActive(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 2:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA || lua_type(state, 1) == LUA_TNIL) &&
                lua_type(state, 2) == LUA_TNUMBER)
            {
                // Get parameter 1 off the stack.
                unsigned int param1 = (unsigned int)luaL_checkunsigned(state, 2);

                Gamepad* instance = getInstance(state);
                bool result = instance->isJoystickActive(param1);

                // Push the return value onto the stack.
                lua_pushboolean(state, result);

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 2).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_Gamepad_isVirtual(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA || lua_type(state, 1) == LUA_TNIL))
            {
                Gamepad* instance = getInstance(state);
                bool result = instance->isVirtual();

                // Push the return value onto the stack.
                lua_pushboolean(state, result);

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_Gamepad_update(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 2:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA || lua_type(state, 1) == LUA_TNIL) &&
                lua_type(state, 2) == LUA_TNUMBER)
            {
                // Get parameter 1 off the stack.
                float param1 = (float)luaL_checknumber(state, 2);

                Gamepad* instance = getInstance(state);
                instance->update(param1);
                
                return 0;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 2).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

}