VERY dirty minimap ;)

[Gogolian]

I just dont know what gotten into me. (maybe a a programmer's devil) but while doing tutorial for beginners (yes, so i am ) decided to make a minimap without looking into froum for already made.
Well i started something about 0:30 AM, now i is 03:21 AM (Poland) and it work. Or at least you can say that
Well it's very VERY dirty both visual and code
But what the hell... ill post it anyway if i'll do better version i will also post it.
minimap.h

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/*********************************
Minimap by_Gogolian
*********************************/
#ifndef MINIMAP_H
#define MINIMAP_H 

#include <irrlicht.h>

using namespace irr;
using namespace scene;
using namespace video;
using namespace core;

class Minimap 
{
public: 
 //vbnvbn
 core::stringw Go(ISceneManager* smgr, IVideoDriver* video)
 {
   core::array< scene::ISceneNode * > allC,allD; 
   ISceneNode* node;
   float scale = 1;
   core::stringw tmp(L"Minimap [");
   smgr->getSceneNodesFromType(ESNT_CAMERA,allD);
   for(int i = 0; i < allD.size(); i++){ 
     video->draw2DRectangle(SColor(255,128,0,0), rect<s32>(500.0f+allD[i]->getPosition().X,280.0f+allD[i]->getPosition().Z,500.0f+allD[i]->getPosition().X+5,280.0f+allD[i]->getPosition().Z+5)) ; 
   }
   smgr->getSceneNodesFromType(ESNT_CUBE,allC);
   for(int i = 0; i < allC.size(); i++){ 
     video->draw2DRectangle(SColor(255,0,0,0), rect<s32>(500.0f+allC[i]->getPosition().X,280.0f+allC[i]->getPosition().Z,500.0f+allC[i]->getPosition().X+5,280.0f+allC[i]->getPosition().Z+5)) ;
   tmp += allC[i]->getPosition().X;
   tmp += " ; ";
   tmp += allC[i]->getPosition().Y;
   tmp += " ; ";
   tmp += allC[i]->getPosition().Z;
   tmp += " :: ";  
   }
  return tmp;
 }
 
};
#endif

main.cpp

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#include <irrlicht.h>
#include "minimap.h"
#pragma comment(lib, "Irrlicht.lib");

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

IrrlichtDevice* device = 0;

bool keys[KEY_KEY_CODES_COUNT];

class MyEventReceiver : public IEventReceiver {
 public:
  virtual bool OnEvent(const SEvent& event)  {
  if(event.EventType == EET_KEY_INPUT_EVENT){
   keys[event.KeyInput.Key] = event.KeyInput.PressedDown;
   return false;
  }
   return false;
  }
}; 

int main() {
    
 Minimap map;
    
 MyEventReceiver receiver;

 IrrlichtDevice* device = createDevice( EDT_DIRECT3D9, core::dimension2d<s32>(640, 480),
		16, false, false, false, &receiver);
 IVideoDriver* video = device->getVideoDriver();
 ISceneManager* smgr = device->getSceneManager();
 
 video::ITexture* images = video->getTexture("./map.bmp");
 
 for(int x=0; x<irr::KEY_KEY_CODES_COUNT; x++) keys[x] = false;
 
 ICameraSceneNode* cam = smgr->addCameraSceneNode();
   
 smgr->addCubeSceneNode();
 ISceneNode* cube = smgr->addCubeSceneNode();
 
 cam->setPosition(vector3df(0,0,120.0f));
 
 cube->setPosition(vector3df(0,0.0f,40.0f));
 //cube->setScale(vector3df(2.0f,3.0f,4.0f));

 while(device->run() && device) {
  
  if(keys[KEY_KEY_W]) {
   cube->setPosition(cube->getPosition()+vector3df(0,0,0.1));
   cube->setRotation(cube->getRotation()+vector3df(0,0,0.1));
  }
  if(keys[KEY_KEY_S]) {
   cube->setPosition(cube->getPosition()-vector3df(0,0,0.1));
   cube->setRotation(cube->getRotation()-vector3df(0,0,0.1));
  }
  if(keys[KEY_KEY_A]) {
   cube->setPosition(cube->getPosition()-vector3df(0.1,0,0));
   cube->setRotation(cube->getRotation()-vector3df(0.1,0,0));
  }
  if(keys[KEY_KEY_D]) {
   cube->setPosition(cube->getPosition()+vector3df(0.1,0,0));
   cube->setRotation(cube->getRotation()+vector3df(0.1,0,0));
  }
  core::stringw tmp(L"Minimap [");
  tmp += map.Go(smgr,video);
  tmp += L"]";
  device->setWindowCaption(tmp.c_str());
  cam->setTarget(cube->getPosition());
  video->beginScene(true, true, video::SColor(255,128,128,128));
  smgr->drawAll();
  video->draw2DImage(images, position2d<s32>(400,310));
  map.Go(smgr,video);
  video->endScene();
 }
} 

So now i am waitin for comment's how bad is it XP
[if someone didn't noticed - steer with WSAD]

[jontan6]

thanks! i may need that next week

[pakata]

english is not good ^^;;;;
so cant say much... ;;?

header

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class Minimap 
{ 
public: 
 //vbnvbn 
	core::stringw Go(ISceneManager* smgr,
		IVideoDriver* video,
		core::dimension2d<s32> imgsize,
		core::position2d<s32> imgpos,
		core::dimension2d<s32> trsize	) 
 { 

^--added more information for minimaps

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   core::array< scene::ISceneNode * > allC,allD; 
   ISceneNode* node; 
   float scale = 1; 
   core::stringw tmp(L"Minimap ["); 
   smgr->getSceneNodesFromType(ESNT_CAMERA,allD);

  imgpos.X+=imgsize.Width/2;
  imgpos.Y+=imgsize.Height/2;

^--calculating minimap image center

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   for(int i = 0; i < allD.size(); i++){ 
     video->draw2DRectangle(SColor(255,128,0,0), rect<s32>(
		 imgpos.X + (allD[i]->getPosition().X/trsize.Width*imgsize.Width),
		 imgpos.Y + (allD[i]->getPosition().Z/trsize.Height*imgsize.Height),
		 imgpos.X + (allD[i]->getPosition().X/trsize.Width*imgsize.Width) + 5,
		 imgpos.Y + (allD[i]->getPosition().Z/trsize.Height*imgsize.Height) + 5		 )
		 ) ; 
   } 

^--imgpos.X --> minimap start position setting
(allD->getPosition().X/trsize.Width*imgsize.Width) --> minimap's boxes position calculating(ralative position?)

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   smgr->getSceneNodesFromType(ESNT_CUBE,allC); 
   for(int i = 0; i < allC.size(); i++){ 
     video->draw2DRectangle(SColor(255,0,0,0),rect<s32>(
		 imgpos.X + (allC[i]->getPosition().X/trsize.Width*imgsize.Width),
		 imgpos.Y + (allC[i]->getPosition().Z/trsize.Height*imgsize.Height),
		 imgpos.X + (allC[i]->getPosition().X/trsize.Width*imgsize.Width) + 5,
		 imgpos.Y + (allC[i]->getPosition().Z/trsize.Height*imgsize.Height) + 5		 )
		 ) ; 
   } 
 }
}; 
#endif

if terrain loaded...
get terrain size...

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core::aabbox3df terrainbox = terrain->getBoundingBox();

ex)
it can use like this
core::vector3df terraincenterpos;

terraincenterpos.X = -f32(terrainbox.MaxEdge.X-terrainbox.MinEdge.X)/2;
terraincenterpos.Y = -terrainbox.MinEdge.Y;
terraincenterpos.Z = -f32(terrainbox.MaxEdge.Z-terrainbox.MinEdge.Z)/2;

terrain->setPosition(terraincenterpos); // terrain set to center

===============================
core::vector3df & getTerrainCenter()
was good
but need information of terrain.. continually...

main

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video::ITexture* images = Device->getVideoDriver()->
getTexture("../media/terrain-heightmap.bmp"); //map
ICameraSceneNode* cam = smgr->addCameraSceneNode(); 

core::dimension2d<s32> imgsize=images->getSize();
core::position2d<s32> imgpos;
imgpos.X=700;
imgpos.Y=50;

video::ITexture* images --> added for get size,position,...
imgpos for minimap start position..

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core::dimension2d<s32> trsize=core::dimension2d<s32>(abs(terrainbox.MaxEdge.X)-abs(terrainbox.MinEdge.X),
abs(terrainbox.MaxEdge.Z)-abs(terrainbox.MinEdge.Z));

get terrain size.

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while(Device->run() && driver)
{
if (Device->isWindowActive())
{
driver->beginScene(true, true, video::SColor(150,50,50,50));
smgr->drawAll();
env->drawAll();

Device->getVideoDriver()->draw2DImage(images, imgpos);
map.Go(smgr,Device->getVideoDriver(),imgsize,imgpos,trsize); 

driver->endScene();

drawing and send data to minimap



some code skipped...

[JP]

pakata, please explain what your code posting is all about... It's a bit confusing if you just slap up some code and don't say what the purpose is. Is it an extension to Goglian's code?