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/*
===========================================================================
blockattack - Block Attack - Rise of the Blocks
Copyright (C) 2005-2017 Poul Sander
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses/
Source information and contacts persons can be found at
http://www.blockattack.net
===========================================================================
*/
#ifndef BALLMANAGER_HPP
#define BALLMANAGER_HPP
#include <array>
extern GlobalData globalData;
//other ball constants:
const double gravity = 200.8; //acceleration
const double startVelocityY = 50.0;
const double VelocityX = 50.0;
const int ballSize = 16;
const double minVelocity = 200.0;
//The small things that are faaling when you clear something
class ABall {
private:
double x = 0.0;
double y = 0.0;
double velocityY = 0.0;
double velocityX = 0.0;
int color = 0;
unsigned long int lastTime = 0;
public:
bool inUse = false;
ABall() {
}
//constructor:
ABall(int X, int Y, bool right, int coulor) {
double tal = 1.0+((double)rand()/((double)RAND_MAX));
velocityY = -tal*startVelocityY;
lastTime = SDL_GetTicks();
x = (double)X;
y = (double)Y;
color = coulor;
if (right) {
velocityX = tal*VelocityX;
}
else {
velocityX = -tal*VelocityX;
}
} //constructor
void update() {
double timePassed = (((double)(SDL_GetTicks()-lastTime))/1000.0); //time passed in seconds
x = x+timePassed*velocityX;
y = y+timePassed*velocityY;
velocityY = velocityY + gravity*timePassed;
if (y<1.0) {
velocityY=10.0;
}
if ((velocityY>minVelocity) && (y>(globalData.ysize-ballSize)) && (y<globalData.ysize)) {
velocityY = -0.70*velocityY;
y = globalData.ysize-ballSize;
}
lastTime = SDL_GetTicks();
}
int getX() {
return (int)x;
}
int getY() {
return (int)y;
}
int getColor() {
return color;
}
}; //aBall
class BallManager {
static const int maxNumberOfBalls = 6*12*2*2;
public:
std::array<ABall, maxNumberOfBalls> ballArray;
BallManager() {
}
//Adds a ball to the screen at given coordiantes, traveling right or not with color
int addBall(int x, int y,bool right,int color) {
size_t ballNumber = 0;
//Find a free ball
while (ballNumber<ballArray.size() && ballArray[ballNumber].inUse) {
ballNumber++;
}
//Could not find a free ball, return -1
if (ballNumber==ballArray.size()) {
return -1;
}
ballArray[ballNumber] = ABall(x,y,right,color);
ballArray[ballNumber].inUse = true;
return 1;
} //addBall
void update() {
for (size_t i = 0; i<ballArray.size(); i++) {
if (ballArray[i].inUse) {
ballArray[i].update();
if (ballArray[i].getY()>globalData.ysize+100 || ballArray[i].getX()>globalData.xsize || ballArray[i].getX()<-ballSize) {
ballArray[i].inUse = false;
}
}
}
} //update
}; //theBallManager
#endif /* BALLMANAGER_HPP */
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