Added Pause function

Pressing escape pauses game

GameScene.c

@@ -5,7 +5,7 @@
 #include "Paddle.h"
 #include "Renderer.h"
 
-void eventHandler(SDL_Event event, Paddle* player1, Paddle* player2, int* running){
+void eventHandler(SDL_Event event, Paddle* player1, Paddle* player2, int* running, int* paused){
 	while(SDL_PollEvent(&event))
 		switch(event.type){
 		case SDL_QUIT:
@@ -25,6 +25,9 @@ void eventHandler(SDL_Event event, Paddle* player1, Paddle* player2, int* runnin
 			case SDL_SCANCODE_DOWN:
 				player2->controls[1]=1;
 				break;
+			case SDL_SCANCODE_ESCAPE:
+				*paused *= -1;
+				break;
 			default:
 				break;
 			}
@@ -49,35 +52,39 @@ void eventHandler(SDL_Event event, Paddle* player1, Paddle* player2, int* runnin
 		}
 }
 
-void one_player_logic(SDL_Event event, int* running, Ball* ball, Paddle* player, Paddle* cpu, char* score_str){
+void one_player_logic(SDL_Event event, int* running, Ball* ball, Paddle* player, Paddle* cpu, char* score_str, int* paused){
 	//Exit and Input Handling
-	eventHandler(event, player, cpu, running);
-	//Player Movement Logic
-	playerLogic(player);
-	//Ball Movement Logic
-	ballLogic(ball, player, cpu, score_str);
-	//CPU Logic
-	cpuLogic(cpu, ball);
-	//Win Conditions
-	if(player->score >= 5 || cpu->score >= 5){
-		sprintf(score_str, "%d  %d", player->score, cpu->score);
-		player->score = 0;
-		cpu->score = 0;
+	eventHandler(event, player, cpu, running, paused);
+	if(*paused == -1){
+		//Player Movement Logic
+		playerLogic(player);
+		//Ball Movement Logic
+		ballLogic(ball, player, cpu, score_str);
+		//CPU Logic
+		cpuLogic(cpu, ball);
+		//Win Conditions
+		if(player->score >= 5 || cpu->score >= 5){
+			sprintf(score_str, "%d  %d", player->score, cpu->score);
+			player->score = 0;
+			cpu->score = 0;
+		}
 	}
 }
 
-void two_player_logic(SDL_Event event, int* running, Ball* ball, Paddle* player1, Paddle* player2, char* score_str){
+void two_player_logic(SDL_Event event, int* running, Ball* ball, Paddle* player1, Paddle* player2, char* score_str, int* paused){
 	//Exit and Input Handling
-	eventHandler(event, player1, player2, running);
-	//Player Movement Logic
-	playerLogic(player1);
-	playerLogic(player2);
-	//Ball Movement Logic
-	ballLogic(ball, player1, player2, score_str);
-	//Win Conditions
-	if(player1->score >= 5 || player2->score >= 5){
-		sprintf(score_str, "%d  %d", player1->score, player2->score);
-		player1->score = 0;
-		player2->score = 0;
+	eventHandler(event, player1, player2, running, paused);
+	if(*paused == -1){
+		//Player Movement Logic
+		playerLogic(player1);
+		playerLogic(player2);
+		//Ball Movement Logic
+		ballLogic(ball, player1, player2, score_str);
+		//Win Conditions
+		if(player1->score >= 5 || player2->score >= 5){
+			sprintf(score_str, "%d  %d", player1->score, player2->score);
+			player1->score = 0;
+			player2->score = 0;
+		}
 	}
 }

GameScene.h

@@ -12,8 +12,8 @@
 #include "Ball.h"
 #include "Paddle.h"
 
-void eventHandler(SDL_Event event, Paddle* player1, Paddle* player2, int* running);
-void one_player_logic(SDL_Event event, int* running, Ball* ball, Paddle* player, Paddle* cpu, char* score_str);
-void two_player_logic(SDL_Event event, int* running, Ball* ball, Paddle* player1, Paddle* player2, char* score_str);
+void eventHandler(SDL_Event event, Paddle* player1, Paddle* player2, int* running, int* paused);
+void one_player_logic(SDL_Event event, int* running, Ball* ball, Paddle* player, Paddle* cpu, char* score_str, int* paused);
+void two_player_logic(SDL_Event event, int* running, Ball* ball, Paddle* player1, Paddle* player2, char* score_str, int* paused);
 
 #endif /* GAMESCENE_H_ */

Rederer.c

@@ -97,7 +97,7 @@ void drawGame(SDL_Renderer *renderer, Paddle player, Paddle cpu, Ball ball){
 	return;
 }
 
-void drawMenuText(SDL_Renderer *renderer, TTF_Font* font, int players){
+void drawMenu(SDL_Renderer *renderer, TTF_Font* font, int players){
 	SDL_Color color;
 	SDL_Color White = { 255, 255, 255 };
 	SDL_Color Grey = { 169, 169, 169};
@@ -124,3 +124,13 @@ void drawMenuText(SDL_Renderer *renderer, TTF_Font* font, int players){
 	SDL_DestroyTexture(texture);
 	SDL_FreeSurface(surface);
 }
+
+void drawPaused(SDL_Renderer *renderer, TTF_Font* font){
+	SDL_Color White = { 255, 255, 255 };
+	SDL_Surface * surface = TTF_RenderText_Solid(font, "Paused", White);
+	SDL_Texture * texture = SDL_CreateTextureFromSurface(renderer, surface);
+	SDL_Rect pause_rect = {(WINDOW_WIDTH / 2) - 150, WINDOW_HEIGHT/2 - 150, 300, 200};
+	SDL_RenderCopy(renderer, texture, NULL, &pause_rect);
+	SDL_DestroyTexture(texture);
+	SDL_FreeSurface(surface);
+}

main.c

@@ -49,20 +49,23 @@ int main(int argc, char **argv){
 	SDL_Rect score_rect;
 	//Event Handling Variables
 	int running = 0;
+	int paused = -1;
 	SDL_Event event;
 	//Game Loop
 	int players = 1;
 	while(!running){
 		if(selected == 0){
 			eventHandler_Menu(event, &running, &players, &selected);
-			drawMenuText(renderer, font, players);
+			drawMenu(renderer, font, players);
 		}else{
 			if(players == 1)
-				one_player_logic(event, &running, &ball, &player1, &player2, score_str);
+				one_player_logic(event, &running, &ball, &player1, &player2, score_str, &paused);
 			else
-				two_player_logic(event, &running, &ball, &player1, &player2, score_str);
+				two_player_logic(event, &running, &ball, &player1, &player2, score_str, &paused);
 			renderScore(renderer, score_str, font, &score_rect, &White);
 			drawGame(renderer, player1, player2, ball);
+			if(paused == 1)
+				drawPaused(renderer, font);
 		}
 		//Display updates on screen
 		redraw(renderer);

renderer.h

@@ -26,5 +26,6 @@ void quit(SDL_Renderer* renderer, SDL_Window* window, TTF_Font* font);
 void renderScore(SDL_Renderer *renderer, const char *score_str, TTF_Font *font, SDL_Rect *rect, SDL_Color *color);
 void redraw(SDL_Renderer* renderer);
 void drawGame(SDL_Renderer *renderer, Paddle player, Paddle cpu, Ball ball);
-void drawMenuText(SDL_Renderer *renderer, TTF_Font* font, int players);
+void drawMenu(SDL_Renderer *renderer, TTF_Font* font, int players);
+void drawPaused(SDL_Renderer *renderer, TTF_Font* font);
 #endif /* RENDERER_H_ */