display.cpp

#include <GL/glut.h>
#include <sys/time.h>
#include <unistd.h>

#include <assert.h>

#include <iostream>


#include "display.h"
#include "Camera/Camera.h"
#include "WiiInterface/WiiInterface.h"
#include "AbstractScene/AbstractScene.h"
#include "MainMenu/MainMenu.h"
#include "FreeType/FreeType.h"
#include "CastleGame/CastleGame.h"
#include "config.h"
#include "TextPrinter/BitMapText.h"
#include "Audio/Audio.h"

struct SceneNode {
    AbstractScene* scene;
    SceneNode* next;
};

SceneNode* scenes = NULL;
SceneNode* currentScene = NULL;

/* Definition of function below */
void updateTime();

void InitDisplay()
{
    updateTime();


    /* Add all of the scenes here */
    AddScene(new CastleGame());

    /* Internal Intializers */
    currentScene = scenes;
    currentScene->scene->Init();


}


void displayScene()
{

    currentScene->scene->Render();

}


void display()
{

    /* Update the time for movement, and the like */
    updateTime();

    static float frameCounter = 0.0;
    frameCounter += getTime();
    static int intFrame = 0;
    intFrame++;
    if(frameCounter > 1.0)
    {
    	printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bfps:%i", intFrame);
    	fflush(stdout);
    	intFrame = 0;
    	frameCounter = 0;
    }

    /* Process Events from wiimotes */


    if(useWiiMotes)
    	ProcessWiiEvents();



    /* Generic OpenGL stuff */
    glClearColor(0.8f, 0.8f, 0.8f, 1.0f);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glLoadIdentity();
    glPushMatrix();

     /* Move Camera */
    /*camera->positionCamera(); */


    /* List everything to display to the screen here */
    displayScene();


    /* And now the normal OpenGL Cleanup stuff */
    glPopMatrix();
    glutSwapBuffers();

    //usleep(10000);

}


void AddScene(AbstractScene* toAdd)
{
    /* Add a scene to the list */
    SceneNode* tmpNode = scenes;
    if (tmpNode == NULL)
    {
        scenes = new SceneNode;
        scenes->scene = toAdd;
        scenes->next = NULL;

    }
    else
    {
        while (tmpNode != NULL)
        {
            tmpNode = tmpNode->next;
        }
        tmpNode->next = new SceneNode;
        tmpNode->next->scene = toAdd;
        tmpNode->next->next = NULL;
    }




}


void NextScene()
{
	assert(scenes);
	assert(currentScene);

	/* Tell the scene that it is done */
	currentScene->scene->DeInit();

	currentScene = currentScene->next;

	/* Tell the new scene to get ready */
	currentScene->scene->Init();





}


void PrevScene()
{

	assert(scenes);

	SceneNode* tmpScenes = scenes;




}



AbstractScene* GetDisplayed()
{
    return currentScene->scene;


}

freetype::font_data* font = NULL;
freetype::font_data* GetFont()
{
    
    if (font == NULL)
    {
        try
        {
            font = new freetype::font_data;
            font->init("FreeType/Test.ttf", 16);
        }
        catch (std::exception &e)
        {
            printf ("%s\n", e.what());
        }

    }

    return font;



}

double storeTime = 0, lastTime = 0;
double getTime() {
    return storeTime - lastTime;
}

void updateTime() {

    lastTime = storeTime;
    timeval t;
    gettimeofday(&t, 0);
    //store seconds since epoch
    storeTime = t.tv_sec;
    //store micoseconds of that second, so divide by million
    storeTime += ((double)t.tv_usec / 1000000);

}


void ShutDown()
{
    printf("Shutting down\n");
    fflush(stdout);
    /* delete the scenes */
    delete GetDisplayed();
    
    delete font;
    
    delete _audio;
    
    WiiShutDown();
    KillFont();
    

    
}