Best way to program?

The Onslaught · Post by **The Onslaught** » Mon Oct 13, 2008 3:16 pm

3DModelerMan wrote:No way... you do kendo?

I hope not, I can't imagine rogerborg as a Kendo master

Dark_Kilauea · Post by **Dark_Kilauea** » Tue Oct 14, 2008 7:41 pm

Rogerborg would probably make a good Kendo instructor. You'd either learn to defend yourself within a couple days, or you'd leave.

Anyway, to actually add to the topic at hand, yes, FSM's are still used everywhere. The Source Engine's AI is heavily FSM based, running "thinking" functions every AI frame to decide which state the AI should change to.

3DModelerMan · Post by **3DModelerMan** » Tue Oct 14, 2008 10:53 pm

I guess so, could you recomend me some good books or tutorials on finite state machines?.

sudi · Post by **sudi** » Tue Oct 14, 2008 11:02 pm

Google is your friend man....

http://www.devmaster.net/articles/fsm_intro/

3DModelerMan · Post by **3DModelerMan** » Tue Oct 14, 2008 11:10 pm

Thanks!

.

Halifax · Post by **Halifax** » Tue Oct 14, 2008 11:26 pm

Sudi wrote:Google is your friend man....

http://www.devmaster.net/articles/fsm_intro/

It's a lost cause. He just wants to be fed, he doesn't want to learn how to use the spoon himself.

rogerborg · Post by **rogerborg** » Wed Oct 15, 2008 10:55 am

We can't fault his tenacity though. I see him having a promising career in either politics, or panhandling.

sudi · Post by **sudi** » Wed Oct 15, 2008 10:57 am

Politics....nothing else

3DModelerMan · Post by **3DModelerMan** » Thu Oct 16, 2008 2:05 pm

My mom said I would be a good politician too... I guess I'm just more of a modeler than a programmer, but I enjoy programming too.

Midnight · Post by **Midnight** » Thu Oct 16, 2008 8:40 pm

noober please,

a finite state machine and the state pattern are completely different things.

I remember when I thought that I could learn how to make commercial games in two weeks also. now I just don't worry about that and count the years as they fly by.

3DModelerMan · Post by **3DModelerMan** » Fri Oct 31, 2008 2:46 pm

So what would be the best way to devide this code up into different functions to where I can have different menu screens?.

Code: Select all

#include <irrlicht.h>
#include "newton.h"
#include "tumle.h"
#include "SDL.h"

using namespace irr;
using namespace core;
using namespace scene;
using namespace video;
using namespace io;
using namespace gui;
using namespace tumle;

//{control variables
int P1_button_press = 0;
enum P1_hat_state { UP,DOWN,LEFT,RIGHT,MIDDLE };
//}

//initialize first joystick globaly
SDL_Joystick* joystick1 = 0;

int main(int argc, char *argv[])
{
//{add classes
SDL_Event event;
//}

//{initialize SDL
if(SDL_Init( SDL_INIT_JOYSTICK|SDL_INIT_TIMER|SDL_INIT_VIDEO ) < 0)  return 1;
//}

//{create an irrlicht device
    IrrlichtDevice* device = createDevice(EDT_OPENGL, dimension2d<s32>(1024, 768), 32,
    true, false, true, 0);


    //if the device can't be created exit the program
    if (!device) return 1;

    //{pointers
     //create and check driver
     IVideoDriver* driver = device->getVideoDriver();
     if (!driver) return 1;
     //create and check smgr
     ISceneManager* smgr = device->getSceneManager();
     if (!smgr) return 1;
     //create and check guienv
     IGUIEnvironment* guienv = device->getGUIEnvironment();
     if (!guienv) return 1;
     //create and check physics manager
     IPhysicsManager* pmgr = createPhysicsManager(device);
     if (!pmgr) return 1;
     //}
     //}

//=======================================================================
//{menu screen variables
int menu_item = 1;

bool in_main_menu = true;

//}

//{add menu screen objects

//{add menu screen background image
IGUIImage* menu_bkg = guienv->addImage(driver->getTexture("menu_background.png"),
position2d<int>(0,0));
//}

//{add logo image
IGUIImage* logo = guienv->addImage(driver->getTexture("logo.png"),
position2d<int>(25,10));
//}

//{sky background
IMeshSceneNode* sky = smgr->addMeshSceneNode(smgr->getMesh("cylinder.obj") );
if (sky)
{
sky->setPosition(vector3df(0,-10,0) );
sky->setScale(vector3df(550,550,550) );
sky->setMaterialFlag(EMF_NORMALIZE_NORMALS, true);
sky->setMaterialFlag(EMF_BACK_FACE_CULLING, false);
sky->setMaterialFlag(EMF_LIGHTING, false);
sky->setMaterialTexture( 0, driver->getTexture("menu_clouds.bmp") );
//rotation animator
ISceneNodeAnimator* rotate = smgr->createRotationAnimator(core::vector3df(0,0.04f,0));
sky->addAnimator(rotate);
rotate->drop();
}
//}

//{battle background
IMeshSceneNode* battle = smgr->addMeshSceneNode(smgr->getMesh("battlefield_stage.obj") );
if (battle)
{
battle->setScale(vector3df(3,3,3) );
battle->setPosition(vector3df(0,-10,0) );
battle->setMaterialFlag(EMF_NORMALIZE_NORMALS, true);
battle->setMaterialFlag(EMF_BACK_FACE_CULLING, false);
battle->setMaterialFlag(EMF_LIGHTING, true);
battle->setMaterialType(EMT_TRANSPARENT_ALPHA_CHANNEL);
battle->setMaterialTexture( 0, driver->getTexture("battlefield_UV_map.png") );
battle->getMaterial(0).EmissiveColor.set(0,100,100,100);
}
//}

//{camera
ICameraSceneNode* camera = smgr->addCameraSceneNode(0, vector3df(0,5,0), vector3df(0,0,0));
ISceneNodeAnimator* fly = smgr->createFlyCircleAnimator (core::vector3df(0,5,0),130.0f, -0.0001f);
camera->addAnimator(fly);
fly->drop();
//}

//{light
//add light
ILightSceneNode* light = smgr->addLightSceneNode(0, vector3df(-15,5,-105), video::SColorf(1.0f, 1.0f, 1.0f));
//}

//{add P1 button is selected image
IGUIImage* P1_brawl_selected = guienv->addImage(driver->getTexture("pressed_button.png"),
position2d<int>(650,10));
//}

//{add P1 button image
IGUIImage* P1_brawl_button = guienv->addImage(driver->getTexture("menu_button.png"),
position2d<int>(650,10));
//}

//{add P1 button text image
IGUIImage* P1_brawl_text = guienv->addImage(driver->getTexture("P1_brawl.png"),
position2d<int>(650,10));
//}

//{add P2 button is selected image
IGUIImage* P2_brawl_selected = guienv->addImage(driver->getTexture("pressed_button.png"),
position2d<int>(650,120));
//}

//{add P2 button image
IGUIImage* P2_brawl_button = guienv->addImage(driver->getTexture("menu_button.png"),
position2d<int>(650,120));
//}

//{add adventure mode button is selected image
IGUIImage* adventure_selected = guienv->addImage(driver->getTexture("pressed_button.png"),
position2d<int>(650,230));
//}

//{add adventure mode button image
IGUIImage* adventure_button = guienv->addImage(driver->getTexture("menu_button.png"),
position2d<int>(650,230));
//}

//{add guess what button is selected image
IGUIImage* guess_what_selected = guienv->addImage(driver->getTexture("pressed_button.png"),
position2d<int>(650,340));
//}

//{add guess what button image
IGUIImage* guess_what_button = guienv->addImage(driver->getTexture("menu_button.png"),
position2d<int>(650,340));
//}

//{add guess what button text image
IGUIImage* guess_what_text = guienv->addImage(driver->getTexture("guess_what.png"),
position2d<int>(650,340));
//}

//{add quit button is selected image
IGUIImage* quit_button_selected = guienv->addImage(driver->getTexture("pressed_button.png"),
position2d<int>(650,450));
//}

//{add quit button image
IGUIImage* quit_button = guienv->addImage(driver->getTexture("menu_button.png"),
position2d<int>(650,450));
//}

//{add quit button text image
IGUIImage* quit_text = guienv->addImage(driver->getTexture("quit.png"),
position2d<int>(650,445));
//}

//{add answer image
IGUIImage* guess_what_answer = guienv->addImage(driver->getTexture("answer.png"),
position2d<int>(0,0));
guess_what_answer->setVisible(false);
//}

//}

//{error text objects

//{error text
IGUIStaticText* joy_error = guienv->addStaticText(L"Please insert a joystick or gamepad...",rect<s32>(15,1,260,22), true);
joy_error->setTextAlignment(EGUIA_CENTER, EGUIA_CENTER);
joy_error->move(position2d<int>(350,350) );
//}

//}

//{open joysticks

//Open joystick1
SDL_JoystickEventState(SDL_ENABLE);
joystick1 = SDL_JoystickOpen(0);

//}

//main game loop
while( device->run() )
{
//=======================================================================

//{check joysticks
if ( SDL_NumJoysticks() < 1 ) joy_error->setVisible(true); else joy_error->setVisible(false);
if ( joystick1 == NULL ) joy_error->setVisible(true);
//}

//{menu screen logic functions

//{menu item wrapping
if ( menu_item < 1 ) menu_item = 5;

if ( menu_item > 5 ) menu_item = 1;
//}

//{menu item selection image
//=======================================================================
if ( menu_item == 1 )
{
 P1_brawl_button->setVisible(false);
 P2_brawl_button->setVisible(true);
 adventure_button->setVisible(true);
 guess_what_button->setVisible(true);
 quit_button->setVisible(true);
}
//=======================================================================

//=======================================================================
if ( menu_item == 2 )
{
 P1_brawl_button->setVisible(true);
 P2_brawl_button->setVisible(false);
 adventure_button->setVisible(true);
 guess_what_button->setVisible(true);
 quit_button->setVisible(true);
}
//=======================================================================

//=======================================================================
if ( menu_item == 3 )
{
 P1_brawl_button->setVisible(true);
 P2_brawl_button->setVisible(true);
 adventure_button->setVisible(false);
 guess_what_button->setVisible(true);
 quit_button->setVisible(true);
}
//=======================================================================

//=======================================================================
if ( menu_item == 4 )
{
 P1_brawl_button->setVisible(true);
 P2_brawl_button->setVisible(true);
 adventure_button->setVisible(true);
 guess_what_button->setVisible(false);
 quit_button->setVisible(true);
}
//=======================================================================

//=======================================================================
if ( menu_item == 5 )
{
 P1_brawl_button->setVisible(true);
 P2_brawl_button->setVisible(true);
 adventure_button->setVisible(true);
 guess_what_button->setVisible(true);
 quit_button->setVisible(false);
}
//=======================================================================

//}
//}

 while(SDL_PollEvent(&event))
    {

        switch(event.type)
        {
             case SDL_JOYBUTTONDOWN:  /* Handle Joystick Button Presses */

             if ( event.jbutton.button == 0 && in_main_menu == true )
             {
             //{ menu selection
             if ( menu_item == 1 )
              {
               in_main_menu = false;
               menu_bkg->remove();
               logo->remove();
               battle->remove();
               sky->remove();
               guess_what_answer->remove();
               P1_brawl_button->remove();
               P1_brawl_selected->remove();
               P1_brawl_text->remove();
               camera->remove();
               light->remove();
               P2_brawl_button->remove();
               P2_brawl_selected->remove();
               quit_button->remove();
               quit_button_selected->remove();
               quit_text->remove();
               guess_what_answer->remove();
               guess_what_button->remove();
               guess_what_selected->remove();
               guess_what_text->remove();
              }

             if ( menu_item == 4 )
             {
              guess_what_answer->setVisible(true);
             }

             if ( menu_item == 5 )
              {
               device->closeDevice();
               SDL_JoystickClose(joystick1);
               atexit(SDL_Quit);
               return 0;
              }

              //}
             }
             break;

             case SDL_JOYHATMOTION:  /* Handle Hat Motion */

             if ( event.jhat.value & SDL_HAT_UP && in_main_menu == true )
             {
              menu_item--;
             }
             if ( event.jhat.value & SDL_HAT_DOWN && in_main_menu == true )
             {
              menu_item++;
             }
             break;

        }
    }


//=======================================================================
 //{update the world

driver->beginScene(true, true, SColor(0,200,200,200));

smgr->drawAll();
guienv->drawAll();

driver->endScene();

//update the newton world
pmgr->update();
SDL_JoystickUpdate();
P1_button_press = 0;
P1_hat_state MIDDLE;
//}
//=======================================================================

}

device->drop();
SDL_JoystickClose(joystick1);
atexit(SDL_Quit);
return 0;

}

jontan6 · Post by **jontan6** » Fri Oct 31, 2008 5:41 pm

it depends on your preference and style

rogerborg · Post by **rogerborg** » Fri Oct 31, 2008 11:13 pm

The forum wrote:You may also post general programming questions here.

You may, but there really are limits to how much time we're going to sink into teaching C 101.

Seriously, there are plenty of general C/C++ resources out there. You don't have to keep asking these non Irrlicht related questions here.

jontan6 · Post by **jontan6** » Sat Nov 01, 2008 3:33 am

this cant be taught in a book or 1 time example. you may opt to join a project and learn through your peers and experience

3DModelerMan · Post by **3DModelerMan** » Sat Nov 01, 2008 2:16 pm

No I just meant, should I put it all into a few headers and cpp's or is it best to do seperate levels as seperate funcs.

Irrlicht Engine

Best way to program?

hmmm

thanks

huh

ummm?

ohhh