Examples -
Smoke, fire and explosion debris
Full code
We show here how to use smokes and debris generators. For this, we use this ship sprite.
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import pygame, math, random
from pygame.math import Vector2 as V2
import thorpy
def refresh():
pos = pygame.mouse.get_pos()
e_ship.set_center(pos) #ship follows mouse
# process smoke
smokegen1.kill_old_elements()
smokegen2.kill_old_elements()
pressed = pygame.mouse.get_pressed()
if pressed[0]: #left mouse button
smokegen1.generate(V2(pos))
elif pressed[2]: #left mouse button
smokegen2.generate(V2(pos))
smokegen1.update_physics(V2(0))
smokegen2.update_physics(V2(0))
# process debris
debrisgen.kill_old_elements(screen.get_rect())
debrisgen.update_physics(dt=0.1)
# refresh screen
e_background.blit()
debrisgen.draw(thorpy.get_screen())
smokegen1.draw(screen)
smokegen2.draw(screen)
pygame.display.flip()
def make_debris():
angle = random.randint(0,360) #pick random angle
spread = 15 #spread of debris directions
debrisgen.generate( V2(pygame.mouse.get_pos()), #position
n=20, #number of debris
v_range=(10,50), #translational velocity range
omega_range=(5,25), #rotational velocity range
angle_range=(angle-spread,angle+spread))
## ##############################################################################
app = thorpy.Application((400,400), "Effects")
smokegen1 = thorpy.fx.get_smokegen(n=50, color=(200,200,255), grow=0.6)
smokegen2 = thorpy.fx.get_fire_smokegen(n=50, color=(200,255,155), grow=0.4)
debrisgen = thorpy.fx.get_debris_generator(duration=200, #nb. frames before die
color=(100,100,100),
max_size=10)
e_ship = thorpy.Image("../documentation/examples/boat_example.png",
colorkey=(255,255,255))
if thorpy.constants.CAN_SHADOWS: #set shadow
thorpy.makeup.add_static_shadow(e_ship, {"target_altitude":5,
"shadow_radius":3,
"sun_angle":40,
"alpha_factor":0.6})
e_background = thorpy.Background(image=thorpy.style.EXAMPLE_IMG,
elements=[e_ship])
reac_time = thorpy.ConstantReaction(thorpy.constants.THORPY_EVENT, refresh,
{"id":thorpy.constants.EVENT_TIME})
reac_space = thorpy.ConstantReaction(pygame.KEYDOWN, make_debris,
{"key":pygame.K_SPACE})
e_background.add_reactions([reac_time, reac_space])
screen = thorpy.get_screen()
infotext = "Press SPACE to spawn debris\n"+\
"LMB and RMB to spawn smokes\n"+\
"and move the mouse to move the boat."
thorpy.launch_blocking_alert("Commands", infotext)
menu = thorpy.Menu(e_background)
pygame.key.set_repeat(30,30)
menu.play()
app.quit()
