File content as of revision 25:3995271e411c:

#include "Game.h"

Game::Game(){
    noOfCubes = 25; //How many cubes are in the scene
    homeSelection = 0; //default selection for the home screen
    gamepad.init();
    renderer.init();
    for(int i = 0; i < noOfCubes; i++){ //Set initial position of all cubes
        cubeArray[i].translate(rand()%250-125,0,20+ i*10); //Position will be based on random integers
    }
}

void Game::run(){
    backToMenu = false;
    score = 0;
    deathMenuSelection = playing = true; //set game state to playing and death screen selection to 'restart'
    while(!backToMenu) {
        renderer.clear(); //clear the screen
        coord = gamepad.get_coord(); //get coordinates from the joystick
        renderer.drawHorizon(coord.x/15); //draw the horizon line
        
        for (int c = 0; c< noOfCubes; c++){  
            moveCubes(&cubeArray[c]); //translate cubes depending on joystick location and score
            cubeToBeRendered(&cubeArray[c], c); //add all cube faces to array to later be rendered
            checkDespawn(&cubeArray[c]); //check if any cubes are behind the perspective
            checkDeath(&cubeArray[c]); //check if any cubes are too close to user
        }
        
        renderer.drawAllFaces(faceArray, noOfCubes, coord.x); //draw all faces added to the face array
        displayDeathMenu(); //display death menu if cube is too close to user, add score if not
        renderer.printScore(score); //print score on top left of screen
        renderer.refresh(); //update display
    }
}

void Game::checkDespawn(Cube *cube){ //checks if the cube is behind the perspective
    if (cube->despawn()){
        cube->resetPos(); //reset position to origin
        cube->translate(rand()%250-125,0,140); //translate cube to new far away position
    }
}

void Game::checkDeath(Cube *cube){ //Check whether the user has hit a cube
    if (cube->tooClose()){
        playing = false; //set state of game to not playing
        cube->resetPos();
        cube->translate(rand()%250-125,0,140); //reset and translate cube to back position
    }
}

void Game::cubeToBeRendered(Cube *cube, int cubeIndex){ //Adds all faces within the cube to an array of faces to be rendered
    for (int i = 0; i < 6; i++){
        faceArray[cubeIndex*6 + i] = cube->getFace(i);
    }
}

void Game::moveCubes(Cube *cube){ //animate cubes
    if(playing){
        if(score < 2000)
            cube->translate(-coord.x*1.4f,0,-1-(float)score/1000); //move cubes closer to user and in x axis depending on joystick pos
        else{
            cube->translate(-coord.x*1.4f,0,-3); //once max speed reached maintain constant z speed
        }
    }
    else{
        coord.x = 0; //if not playing (dead) prevent joystick moving anything
    }
}

void Game::displayDeathMenu(){ //display restart or back to home menu
    if(!playing){
        renderer.drawDeathScreen(deathMenuSelection); //draw death screen if game over
        deathButtonSelections() //select menu option
    }
    else{
        addScore(); //add score if still playing
    }
}

void Game::addScore(){ //increment score by 1 each frame
    score++;
}

void Game::resetScore(){  //reset score to 0
    score = 0;
}

void Game::deathButtonSelections(){ //determine selection on death screen
        if(gamepad.check_event(Gamepad::Y_PRESSED) == true){ //if y pressed highlight top option (restart)
            deathMenuSelection = true;
        }
        else if(gamepad.check_event(Gamepad::A_PRESSED) == true){ //if a pressed highlight bottom option (home menu)
            deathMenuSelection = false;
        }
        if (deathMenuSelection == true && gamepad.check_event(Gamepad::B_PRESSED) == true){ //if top option highlighted and b pressed then restart game
            playing = true;
            score = 0;
            resetScore();
        }
        else if(deathMenuSelection == false && gamepad.check_event(Gamepad::B_PRESSED) == true){ //if bottom option highlighted and b pressed then go to home screen
            resetScore();
            backToMenu = true;
        }
}

void Game::homeButtonSelections(){ //determine selection on home screen
        if(gamepad.check_event(Gamepad::Y_PRESSED) == true && homeSelection > 0){ //if top option isnt highlighted and y pressed then move highlight up
            homeSelection--;
        }
        else if(gamepad.check_event(Gamepad::A_PRESSED) == true && homeSelection < 2){ //if bottom option isnt highlighted and a pressed then move highlight down
            homeSelection++;
        }
        if (homeSelection == 0 && gamepad.check_event(Gamepad::B_PRESSED) == true){ //if top highlighted and b pressed then start game
            run();
        }
        else if(homeSelection == 2 && gamepad.check_event(Gamepad::B_PRESSED) == true){ //if bottom highlighted and b pressed then exit game
            //return true;
        }
}

void Game::homeScreen(){
    while(1){
        renderer.clear();//clear screen
        homeButtonSelections(); //determine selection on home screen
        renderer.drawHomeScreen(homeSelection); //draw home screen
        renderer.refresh(); //refresh lcd
    }
}