def shell_will_hit(self, shell, target, factor=1):
"""
Returns True if shell will hit rectangular object
"""
b = shell.angle
e = Vector(1, 0)
q = e.rotate(b)
center = Vector(target.x - shell.x, target.y - shell.y)
if center.scalar_product(q) < 0:
return False
a = target.angle
c1 = center + Vector(target.width/2 * factor, target.height/2 * factor).rotate(a)
c2 = center + Vector(- target.width/2 * factor, target.height/2 * factor).rotate(a)
c3 = center + Vector(- target.width/2 * factor, - target.height/2 * factor).rotate(a)
c4 = center + Vector(target.width/2 * factor, - target.height/2 * factor).rotate(a)
if sign(c1.cross_product(q)) == sign(q.cross_product(c3)):
#print("TEST", c1, c2, c3, c4, q)
return True
if sign(c2.cross_product(q)) == sign(q.cross_product(c4)):
#print("TEST", c1, c2, c3, c4, q)
return True
return False
def positions(self, tank, world):
positions = []
# Current position
positions.append(Position(tank.x, tank.y, "CURRENT"))
# Forward and back direction
tank_v = Vector(tank.x, tank.y)
tank_d_v = Vector(1, 0).rotate(tank.angle)
forw = tank_v + tank_d_v * self.short_direction
back = tank_v - tank_d_v * self.short_direction
positions.append(Position(forw.x, forw.y, "FORWARD"))
positions.append(Position(back.x, back.y, "BACKWARD"))
fforw = tank_v + tank_d_v * self.long_direction
fback = tank_v - tank_d_v * self.long_direction
positions.append(Position(fforw.x, fforw.y, "FAR FORWARD"))
positions.append(Position(fback.x, fback.y, "FAR BACKWARD"))
# Low diagonal move
DIAGONAL_ANGLE = PI/6
for a in [DIAGONAL_ANGLE, - DIAGONAL_ANGLE, PI - DIAGONAL_ANGLE, DIAGONAL_ANGLE - PI]:
pt = tank_v + tank_d_v.rotate(a) * 100
positions.append(Position(pt.x, pt.y, "TURN %.0f" % degrees(a)))
# Bonuses positions
positions += [Position(b.x, b.y, "BONUS %s" % bonus_name_by_type(b.type)) for b in world.bonuses]
return positions
def shell_will_hit(self, shell, target, factor=1):
"""
Returns True if shell will hit rectangular object
"""
b = shell.angle
e = Vector(1, 0)
q = e.rotate(b)
center = Vector(target.x - shell.x, target.y - shell.y)
if center.scalar_product(q) < 0:
return False
a = target.angle
c1 = center + Vector(target.width / 2 * factor,
target.height / 2 * factor).rotate(a)
c2 = center + Vector(-target.width / 2 * factor,
target.height / 2 * factor).rotate(a)
c3 = center + Vector(-target.width / 2 * factor,
-target.height / 2 * factor).rotate(a)
c4 = center + Vector(target.width / 2 * factor,
-target.height / 2 * factor).rotate(a)
if sign(c1.cross_product(q)) == sign(q.cross_product(c3)):
#print("TEST", c1, c2, c3, c4, q)
return True
if sign(c2.cross_product(q)) == sign(q.cross_product(c4)):
#print("TEST", c1, c2, c3, c4, q)
return True
return False
def will_hit_precise(self, tank, target, ricochet_angle=PI/4, factor=1, side_part=1):
"""
Returns True if tank will hit rectangular object
"""
b = tank.angle + tank.turret_relative_angle
e = Vector(1, 0)
q = e.rotate(b)
tank_v = Vector(tank.x, tank.y)
c = get_unit_corners(target, factor)
hit_v = tank_v + MAX_DISTANCE * q
def will_hit_side(p1, p2):
p_mid = (p1 + p2)/2
p1_new = p_mid + (p1 - p_mid) * side_part
p2_new = p_mid + (p2 - p_mid) * side_part
intersecting = segments_are_intersecting(tank_v, hit_v, p1_new, p2_new)
angle = q.angle(p2 - p1)
safe = ricochet_angle < angle < PI - ricochet_angle
return intersecting and safe
sides = [(c[0], c[1]), (c[1], c[2]), (c[2], c[3]), (c[3], c[0])]
closest_corner = min(c, key=lambda x: x.distance(tank_v))
closer_sides = list(filter(lambda s: s[0] == closest_corner or s[1] == closest_corner, sides))
#result = will_hit_side(c1, c2) or will_hit_side(c2, c3) or will_hit_side(c3, c4) or will_hit_side(c4, c1)
result = will_hit_side(closer_sides[0][0], closer_sides[0][1]) or will_hit_side(closer_sides[1][0], closer_sides[1][1])
return result
def positions(self, tank, world):
positions = []
# Current position
positions.append(Position(tank.x, tank.y, "CURRENT"))
# Forward and back direction
tank_v = Vector(tank.x, tank.y)
tank_d_v = Vector(1, 0).rotate(tank.angle)
forw = tank_v + tank_d_v * self.short_direction
back = tank_v - tank_d_v * self.short_direction
positions.append(Position(forw.x, forw.y, "FORWARD"))
positions.append(Position(back.x, back.y, "BACKWARD"))
fforw = tank_v + tank_d_v * self.long_direction
fback = tank_v - tank_d_v * self.long_direction
positions.append(Position(fforw.x, fforw.y, "FAR FORWARD"))
positions.append(Position(fback.x, fback.y, "FAR BACKWARD"))
# Low diagonal move
DIAGONAL_ANGLE = PI / 6
for a in [
DIAGONAL_ANGLE, -DIAGONAL_ANGLE, PI - DIAGONAL_ANGLE,
DIAGONAL_ANGLE - PI
]:
pt = tank_v + tank_d_v.rotate(a) * 100
positions.append(Position(pt.x, pt.y, "TURN %.0f" % degrees(a)))
# Bonuses positions
positions += [
Position(b.x, b.y, "BONUS %s" % bonus_name_by_type(b.type))
for b in world.bonuses
]
return positions
def positions(self, tank, world):
positions = []
# Low diagonal move
tank_v = Vector(tank.x, tank.y)
tank_d_v = Vector(1, 0).rotate(tank.angle)
for a in [self.angle, - self.angle, PI - self.angle, self.angle - PI]:
pt = tank_v + tank_d_v.rotate(a) * 100
positions.append(Position(pt.x, pt.y, "TURN %.0f" % degrees(a)))
return positions
def draw_tank(tank):
draw_unit(tank)
b = tank.angle + tank.turret_relative_angle
e = Vector(1, 0)
q = e.rotate(b)
tank_v = Vector(tank.x, tank.y)
hit_v = tank_v + MAX_DISTANCE * q
pygame.draw.line(window, (255, 0, 0), (tank.x, tank.y), (hit_v.x, hit_v.y))
def draw_tank(tank):
draw_unit(tank)
b = tank.angle + tank.turret_relative_angle
e = Vector(1, 0)
q = e.rotate(b)
tank_v = Vector(tank.x, tank.y)
hit_v = tank_v + MAX_DISTANCE * q
pygame.draw.line(window, (255, 0, 0), (tank.x, tank.y), (hit_v.x, hit_v.y))
def positions(self, tank, world):
positions = []
# Low diagonal move
tank_v = Vector(tank.x, tank.y)
tank_d_v = Vector(1, 0).rotate(tank.angle)
for a in [self.angle, -self.angle, PI - self.angle, self.angle - PI]:
pt = tank_v + tank_d_v.rotate(a) * 100
positions.append(Position(pt.x, pt.y, "TURN %.0f" % degrees(a)))
return positions
def will_hit_precise(self,
tank,
target,
ricochet_angle=PI / 4,
factor=1,
side_part=1):
"""
Returns True if tank will hit rectangular object
"""
b = tank.angle + tank.turret_relative_angle
e = Vector(1, 0)
q = e.rotate(b)
tank_v = Vector(tank.x, tank.y)
c = get_unit_corners(target, factor)
hit_v = tank_v + MAX_DISTANCE * q
def will_hit_side(p1, p2):
p_mid = (p1 + p2) / 2
p1_new = p_mid + (p1 - p_mid) * side_part
p2_new = p_mid + (p2 - p_mid) * side_part
intersecting = segments_are_intersecting(tank_v, hit_v, p1_new,
p2_new)
angle = q.angle(p2 - p1)
safe = ricochet_angle < angle < PI - ricochet_angle
return intersecting and safe
sides = [(c[0], c[1]), (c[1], c[2]), (c[2], c[3]), (c[3], c[0])]
closest_corner = min(c, key=lambda x: x.distance(tank_v))
closer_sides = list(
filter(lambda s: s[0] == closest_corner or s[1] == closest_corner,
sides))
#result = will_hit_side(c1, c2) or will_hit_side(c2, c3) or will_hit_side(c3, c4) or will_hit_side(c4, c1)
result = will_hit_side(closer_sides[0][0],
closer_sides[0][1]) or will_hit_side(
closer_sides[1][0], closer_sides[1][1])
return result
def debug_value(self, target):
tank = self.context.tank
physics = self.context.physics
b = tank.angle + tank.turret_relative_angle
e = Vector(1, 0)
q = e.rotate(b)
target_v = Vector(target.x, target.y)
target_direction = Vector(1, 0).rotate(target.angle)
target_speed = Vector(target.speedX, target.speedY)
def get_hit_time():
v0 = INITIAL_SHELL_VELOCITY
a = SHELL_ACCELERATION
d = max(0, tank.get_distance_to_unit(target) - 60)
return solve_quadratic(a / 2, v0, -d)
def max_move_distance(v0, a, max_v, t):
#TODO: this estimation is rough
v0 = max(-max_v, min(v0, max_v))
if fabs(v0 + a * t) > max_v:
if a > 0:
t1 = fabs((max_v - v0) / a)
else:
t1 = fabs((-max_v - v0) / a)
t2 = t - t1
else:
t1 = t
t2 = 0
if a > 0:
return a * t1**2 / 2 + v0 * t1 + max_v * t2
else:
return a * t1**2 / 2 + v0 * t1 - max_v * t2
t = get_hit_time()
center = Vector(target.x - tank.x, target.y - tank.y)
v0 = target_speed.projection(target_direction)
target_avoid_distance_forward = max_move_distance(
v0, FICTIVE_TARGET_ACCELERATION, MAX_TARGET_SPEED, t)
target_avoid_distance_backward = max_move_distance(
v0, -FICTIVE_TARGET_ACCELERATION * 0.75, MAX_TARGET_SPEED, t)
max_pos = target_v + target_avoid_distance_forward * target_direction
min_pos = target_v + target_avoid_distance_backward * target_direction
target_turret_n_cos = fabs(cos(fabs(b - target.angle) + PI / 2))
var = fabs(
(target_avoid_distance_forward - target_avoid_distance_backward) *
target_turret_n_cos)
estimate_pos = target_v + target_direction * (
(target_avoid_distance_forward + target_avoid_distance_backward) /
2)
vulnerable_width = max(90 * target_turret_n_cos,
60 * (1 - target_turret_n_cos))
shoot = physics.will_hit(
tank, fictive_unit(
target, max_pos.x, max_pos.y)) and physics.will_hit(
tank, fictive_unit(target, min_pos.x, min_pos.y))
return "fw=%s, bw=%s, t=%s, var=%s, wid=%s, degree=%s, shoot=%s" % (
int(target_avoid_distance_forward),
int(target_avoid_distance_backward), int(t), int(var),
vulnerable_width,
fabs(tank.get_turret_angle_to(estimate_pos.x, estimate_pos.y)) /
PI * 180, shoot)
