Hola a todos este es mi primer correo en la lista acabo de
registrarme, soy novato en python la cosa es que estoy jugando con un
programita que contiene modulos de pygame de un tiro parabolico lo que
no se como hacer es para que la variable t que calcula el tiempo el
cual estuvo en el aire el proyectil no imprima el valor en 0 sino el
ultimo valor que tubo antes de tocar tierra...
#!/usr/bin/env psython
#coding: UTF-8
def printos(superficie, text, x, y, color, font):
text_in_lines = text.split('\n')
for line in text_in_lines:
new = font.render(line, 1, color)
superficie.blit(new, (x, y))
y += new.get_height()
def arrow(screen, color, x, y, ang):
pygame.draw.line(screen, color, (x, y), (x + 20*math.cos(math.radians(ang + 150.0)), y - 20*math.sin(math.radians(ang + 150.0))))
pygame.draw.line(screen, color, (x, y), (x + 20*math.cos(math.radians(ang + 210.0)), y - 20*math.sin(math.radians(ang + 210.0))))
def vector(screen, color, x, y, ang):
w, z = x + v0*10*math.cos(math.radians(ang)), y - v0*10*math.sin(math.radians(ang))
x, y, w, z = int(x), int(y), int(w), int(z)
arrow(screen, color, w, z, ang)
pygame.draw.line(screen, blue, (x, y), (w, z))
import pygame, math
pygame.init()
size = width, height = 1280, 700
black = (0, 0, 0)
blue = (0, 0, 255)
green = (0, 255, 0)
background = (200, 200, 101)
screen = pygame.display.set_mode(size)
pygame.display.set_caption("Tiro Parabolico")
radio = 10
x = 10
y = height - radio
pygame.font.init()
font = pygame.font.Font(None, 30)
clock = pygame.time.Clock()
t = 0.0
dt = 0.5
v0 = 40.0
a = 1.0
ang = 30.0
vx = 40
vy = 0
lock = True
lock1 = False
second = False
while 1:
screen.fill(background)
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
teclado = pygame.key.get_pressed()
if(tuple(set(teclado)) == (0,1) and lock):
if (teclado[pygame.K_UP]):
ang += 1
if(ang >= 90):
ang = 90
if (teclado[pygame.K_DOWN]):
ang -= 1
if(ang < 0):
ang = 0
if (teclado[pygame.K_RIGHT] and v0 < 100):
v0 += 1
if (teclado[pygame.K_LEFT] and v0 > 1):
v0 -= 1
if (teclado[pygame.K_SPACE]):
lock = False
lock1 = True
vy0 = v0*math.sin(math.radians(ang))
if (teclado[pygame.K_ESCAPE]):
break
vx0 = v0*math.cos(math.radians(ang))
vy = a*t - v0*math.sin(math.radians(ang))
if(lock1):
y = (height - radio) - vy0*t + .5*a*(t**2)
x = radio + vx0*t
t += dt
if(y > (height - radio)):
y = height - radio
t = 0
lock1 = False
second = True
if(second):
printos(screen, "Continuar? S/N", 0, 60, green, font)
if(teclado[pygame.K_s]):
lock = True
second = False
x = radio
elif(teclado[pygame.K_n]):
break
printos(screen, "x = %d y = %d ang = %d v0 = %d vx = %d vy = %d t = %d "%(x - radio, height - radio - y, ang, v0, vx0, vy, t), 0, 0, green, font)
pygame.draw.circle(screen, blue, (int(x), int(y)), radio)
vector(screen, blue, x, y, ang)
pygame.display.flip()
clock.tick(30)
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