CPlusPlusProjectTemplate/main.cpp

//--------------------------------------------------------------------------------------------------
//		Collect the Balls Game
//--------------------------------------------------------------------------------------------------
//		Purpose of the game is to figure out how to program.
//		The goal of the game, is to simply to collect balls until a score or time limit has been reached.
//--------------------------------------------------------------------------------------------------
//		created by Rune; with massive help from sigonasr2 on Javidx9's One Lone Coder Discord server
//--------------------------------------------------------------------------------------------------
#define OLC_PGE_APPLICATION
#include <iostream>
#include "pixelGameEngine.h"	// use this for drawing stuff to screen

using namespace olc;

//--------------------------------------------------------------------------------------------------
//		class
//--------------------------------------------------------------------------------------------------
class BallGame : public olc::PixelGameEngine
{
public:
	BallGame()
	{
		sAppName = "Rectangle Collision";
	}

public:
	struct Rectangle{
		vd2d pos;
		vd2d size;
	};

	vd2d pos = {0,0};

	Rectangle r1 = {{64,64},{16,16}};
	Rectangle r3 = {{128,64},{16,16}};
	Rectangle r2 = {pos,{8,8}};

//--------------------------------------------------------------------------------------------------
//		Create stuff for game
//--------------------------------------------------------------------------------------------------
	bool OnUserCreate() override
	{
		return true;
	}

//--------------------------------------------------------------------------------------------------
//		main game function
//--------------------------------------------------------------------------------------------------
	bool OnUserUpdate(float fElapsedTime) override
	{

		Clear(VERY_DARK_CYAN);

		if (GetKey(A).bHeld) {
			r2.pos.x-=20*fElapsedTime;
		}
		if (GetKey(D).bHeld) {
			r2.pos.x+=20*fElapsedTime;
		}
		if (GetKey(W).bHeld) {
			r2.pos.y-=20*fElapsedTime;
		}
		if (GetKey(S).bHeld) {
			r2.pos.y+=20*fElapsedTime;
		}

		if (Collision(r1,r2)) {
			FillRect(r1.pos,r1.size,YELLOW);
		} else {
			FillRect(r1.pos,r1.size,RED);
		}
		if (Collision(r3,r2)) {
			FillRect(r3.pos,r1.size,YELLOW);
		} else {
			FillRect(r3.pos,r1.size,GREEN);
		}
		FillRect(r2.pos,r2.size,BLUE);
		
		return true;
	}

	bool Collision(Rectangle r1,Rectangle r2) {
		return abs(r1.pos.x-r2.pos.x)<r1.size.x&&abs(r1.pos.y-r2.pos.y)<r1.size.y;
	}
	bool Collision2(Rectangle r1,Rectangle r2) {
		return abs(r1.pos.x-r2.pos.x)<r1.size.x&&abs(r1.pos.y-r2.pos.y)<r1.size.y;
	}
};

//--------------------------------------------------------------------------------------------------

int main()
{
	BallGame game;
	if (game.Construct(256, 240, 4, 4))
		game.Start();

	return 0;
}

//--------------------------------------------------------------------------------------------------
//		END OF FILE
//--------------------------------------------------------------------------------------------------