#include <iostream>
using namespace std;
int main()
{
cout << "Hello, World!";
return 0;
}import pygame
import sys
# Game variables
gravity = 0.25
bird_movement = 0
bird_rect = bird_surface.get_rect(center = (100,512))
def draw_floor():
screen.blit(floor_surface,(floor_x_pos,900))
screen.blit(floor_surface,(floor_x_pos + 576,900))
def create_pipe():
random_pipe_pos = random.choice(pipe_height)
bottom_pipe = pipe_surface.get_rect(midtop = (700,random_pipe_pos))
top_pipe = pipe_surface.get_rect(midbottom = (700,random_pipe_pos - 300))
return bottom_pipe,top_pipe
def move_pipes(pipes):
for pipe in pipes:
pipe.centerx -= 5
return pipes
def draw_pipes(pipes):
for pipe in pipes:
if pipe.bottom >= 1024:
screen.blit(pipe_surface,pipe)
else:
flip_pipe = pygame.transform.flip(pipe_surface,False,True)
screen.blit(flip_pipe,pipe)
def check_collision(pipes):
for pipe in pipes:
if bird_rect.colliderect(pipe):
return False
if bird_rect.top <= -100 or bird_rect.bottom >= 900:
return False
return True
def rotate_bird(bird):
new_bird = pygame.transform.rotozoom(bird,-bird_movement * 3,1)
return new_bird
def bird_animation():
new_bird = bird_frames[bird_index]
new_bird_rect = new_bird.get_rect(center = (100,bird_rect.centery))
return new_bird,new_bird_rect
def score_display(game_state):
if game_state == 'main_game':
score_surface = game_font.render(str(int(score)),True,(255,255,255))
score_rect = score_surface.get_rect(center = (288,100))
screen.blit(score_surface,score_rect)
if game_state == 'game_over':
score_surface = game_font.render(f'Score: {int(score)}' ,True,(255,255,255))
score_rect = score_surface.get_rect(center = (288,100))
screen.blit(score_surface,score_rect)
high_score_surface = game_font.render(f'High score: {int(high_score)}',True,(255,255,255))
high_score_rect = high_score_surface.get_rect(center = (288,850))
screen.blit(high_score_surface,high_score_rect)
def update_score(score, high_score):
if score > high_score:
high_score = score
return high_score
# Pygame init
pygame.init()
screen = pygame.display.set_mode((576,1024))
clock = pygame.time.Clock()
game_font = pygame.font.Font('04B_19.ttf',40)
# Game loop
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_SPACE and game_active:
bird_movement = 0
bird_movement -= 12
if event.key == pygame.K_SPACE and game_active == False:
game_active = True
pipe_list.clear()
bird_rect.center = (100,512)
bird_movement = 0
score = 0
if event.type == BIRDFLAP:
if bird_index < 2:
bird_index += 1
else:
bird_index = 0
bird_surface,bird_rect = bird_animation()
screen.blit(bg_surface,(0,0))
if game_active:
# Bird
bird_movement += gravity
rotated_bird = rotate_bird(bird_surface)
bird_rect.centery += bird_movement
screen.blit(rotated_bird,bird_rect)
game_active = check_collision(pipe_list)
# Pipes
pipe_list = move_pipes(pipe_list)
draw_pipes(pipe_list)
score += 0.01
score_display('main_game')
else:
screen.blit(game_over_surface,game_over_rect)
high_score = update_score(score,high_score)
score_display('game_over')
# Floor
floor_x_pos -= 1
draw_floor()
if floor_x_pos <= -576:
floor_x_pos = 0
pygame.display.update()
clock.tick(120)
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#include <iostream>
#include <string>
using namespace std;
int main()
{
string name;
cout << "Enter name:";
getline (cin, name);
cout << "Hello " << name;
return 0;
}
C++ is a widely used middle-level programming language.
When ever you want to perform a set of operations based on a condition If-Else is used.
if(conditional-expression) {
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}
else {
//code
}
You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
switch(conditional-expression){
case value1:
// code
break; // optional
case value2:
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break; // optional
......
default:
code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement){
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While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while (condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
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} while (condition);
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.
return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
// code
}