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#include "SDL2/SDL.h"
//#include "SDL2/SDL_ttf.h"
#include "stdio.h"
#include "stdlib.h"
#include "math.h"
#include "stdbool.h"
bool checkCollision(SDL_Rect a, SDL_Rect b){
int leftA, leftB, rightA, rightB, topA, topB, bottomA, bottomB;
leftA = a.x;
rightA = a.x + a.w;
topA = a.y;
bottomA = a.y + a.h;
leftB = b.x;
rightB = b.x + b.w;
topB = b.y;
bottomB = b.y + b.h;
if(bottomA <= topB){
return false;
}
if(topA >= bottomB){
return false;
}
if(rightA <= leftB){
return false;
}
if(leftA >= rightB){
return false;
}
return true;
}
int main(int argc, char ** argv) {
SDL_Window *window;
SDL_Renderer *renderer;
int fps = 60;
int ticksPframe = 1000 / fps;
bool quit = false;
int p1vel = 0, p2vel = 0;
int ballvelx = 0, ballvely = 0;
int vel = 10;
// int p1score = 0, p2score = 0;
//TTF_Init;
SDL_Rect p1;
SDL_Rect p2;
SDL_Rect ball;
// SDL_Rect p1ScoreRect;
// SDL_Rect p2ScoreRect;
SDL_Event event;
SDL_Init(SDL_INIT_VIDEO);
// TTF_Font * text;
// SDL_Surface* p1SurfaceMsg;
// SDL_Surface* p2SurfaceMsg;
// SDL_Texture* p1ScoreMsg;
// SDL_Texture* p2ScoreMsg;
// SDL_Color color={0, 255, 0, 255};
//Creating the window and renderer
window = SDL_CreateWindow("Pong", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 1000, 750, SDL_WINDOW_OPENGL);
renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
p1.w = 20;
p1.h = 150;
p1.x = 10;
p1.y = 300;
p2.w = 20;
p2.h = 150;
p2.x = 970;
p2.y = 300;
ball.w = 10;
ball.h = 10;
ball.x = 490;
ball.y = 365;
// p1ScoreRect.x = 450;
// p1ScoreRect.y = 10;
// p1ScoreRect.w = 40;
// p1ScoreRect.h = 50;
//
// p2ScoreRect.x = 510;
// p1ScoreRect.y = 10;
// p1ScoreRect.w = 40;
// p1ScoreRect.h = 50;
//
// text = TTF_OpenFont("NotoSerif-BlackItalic.ttf", 24);
// p1SurfaceMsg = TTF_RenderText_Solid(text, p1score, color);
// p2SurfaceMsg = TTF_RenderText_Solid(text, p2score, color);
// p1ScoreMsg = SDL_CreateTextureFromSurface(renderer, p1SurfaceMsg);
// p2ScoreMsg = SDL_CreateTextureFromSurface(renderer, p2SurfaceMsg);
ballvelx = -4;
ballvely = 5;
while(!quit){
//Check first frame to compare later for smooth framerate
int startFrame = SDL_GetTicks();
//Handling keyboard events
while(SDL_PollEvent(&event)){
switch(event.type){
case SDL_KEYDOWN:
switch(event.key.keysym.sym){
case SDLK_w:
p1vel = -vel;
break;
case SDLK_s:
p1vel = vel;
break;
case SDLK_i:
p2vel = -vel;
break;
case SDLK_k:
p2vel = vel;
break;
}
break;
case SDL_KEYUP:
switch(event.key.keysym.sym){
case SDLK_s:
if(p1vel > 0){p1vel = 0;}
break;
case SDLK_w:
if(p1vel < 0){p1vel = 0;}
break;
case SDLK_k:
if(p2vel > 0){p2vel = 0;}
break;
case SDLK_i:
if(p2vel < 0){p2vel = 0;}
break;
}
break;
case SDL_QUIT:
quit = true;
break;
}
}
SDL_Delay(1);
if(checkCollision(ball, p1) == true || checkCollision(ball, p2) == true){
ballvelx = -ballvelx * 1.1;
}
if(ball.y <= 0 || ball.y >= 740){
ballvely = -ballvely * 1.1;
}
if(ball.x <= 0){
//p2score++;
p1.w = 20;
p1.h = 150;
p1.x = 10;
p1.y = 300;
p2.w = 20;
p2.h = 150;
p2.x = 970;
p2.y = 300;
ball.w = 10;
ball.h = 10;
ball.x = 490;
ball.y = 365;
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
SDL_RenderClear(renderer);
SDL_SetRenderDrawColor(renderer, 0, 0, 255, 255);
SDL_RenderDrawRect(renderer, &p1);
SDL_RenderDrawRect(renderer, &p2);
SDL_RenderDrawRect(renderer, &ball);
SDL_RenderDrawLine(renderer, 500, 0, 500, 740);
SDL_RenderPresent(renderer);
SDL_Delay(3000);
}
if(ball.x + ball.w >= 1000){
//p1score++;
p1.w = 20;
p1.h = 150;
p1.x = 10;
p1.y = 300;
p2.w = 20;
p2.h = 150;
p2.x = 970;
p2.y = 300;
ball.w = 10;
ball.h = 10;
ball.x = 490;
ball.y = 365;
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
SDL_RenderClear(renderer);
SDL_SetRenderDrawColor(renderer, 0, 0, 255, 255);
SDL_RenderDrawRect(renderer, &p1);
SDL_RenderDrawRect(renderer, &p2);
SDL_RenderDrawRect(renderer, &ball);
SDL_RenderDrawLine(renderer, 500, 0, 500, 740);
SDL_RenderPresent(renderer);
SDL_Delay(3000);
}
//Updating position
p1.y += p1vel;
p2.y += p2vel;
ball.x += ballvelx;
ball.y += ballvely;
//Drawing the scene
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
SDL_RenderClear(renderer);
SDL_SetRenderDrawColor(renderer, 0, 0, 255, 255);
SDL_RenderDrawRect(renderer, &p1);
SDL_RenderDrawRect(renderer, &p2);
SDL_RenderDrawRect(renderer, &ball);
SDL_RenderDrawLine(renderer, 500, 0, 500, 740);
SDL_RenderPresent(renderer);
// Checking the last codes tick will help us make out how much time we've to wait before starting the next frame
// Note that this isn't a perfect solution and it could be improved upon since it only really works for faster machines, however it works for something simple like this
int lastFrame = SDL_GetTicks();
if(lastFrame - startFrame < ticksPframe){
SDL_Delay(ticksPframe - (lastFrame - startFrame));
}
}
// TTF_Quit();
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_Quit();
return 0;
}
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