|
1
|
var _perlin_size = precise ? 480 : 240;
|
|
2
|
if (!surface_exists(noise_surf))
|
|
3
|
{
|
|
4
|
noise_surf = surface_create(_perlin_size, _perlin_size);
|
|
5
|
surface_set_target(noise_surf);
|
|
6
|
draw_clear(c_black);
|
|
7
|
if (precise)
|
|
8
|
draw_sprite(spr_perlin_noise_480, 0, 0, 0);
|
|
9
|
else
|
|
10
|
draw_sprite(spr_perlin_noise_240, 0, 0, 0);
|
|
11
|
surface_reset_target();
|
|
12
|
}
|
|
13
|
if (scr_debugscr_debug
function scr_debug()
{
if (global.debug == 1)
return 1;
} ())
|
|
14
|
{
|
|
15
|
if (keyboard_check_pressed(ord("B")) || gamepad_button_check_pressed(0, gp_face3))
|
|
16
|
{
|
|
17
|
if (timer <= 0)
|
|
18
|
active = true;
|
|
19
|
else
|
|
20
|
active = !active;
|
|
21
|
if (active)
|
|
22
|
timer = lifetime;
|
|
23
|
if (!audio_is_playing(static_noise))
|
|
24
|
static_noise = snd_play(snd_tv_static);
|
|
25
|
}
|
|
26
|
if (keyboard_check_pressed(ord("N")) || gamepad_button_check_pressed(0, gp_shoulderl))
|
|
27
|
{
|
|
28
|
infinite = !infinite;
|
|
29
|
if (infinite)
|
|
30
|
timer = lifetime;
|
|
31
|
debug_print("infinite: " + string(infinite));
|
|
32
|
}
|
|
33
|
if (keyboard_check_pressed(ord("V")) || gamepad_button_check_pressed(0, gp_shoulderr))
|
|
34
|
{
|
|
35
|
scroll = !scroll;
|
|
36
|
debug_print("scroll: " + string(scroll));
|
|
37
|
}
|
|
38
|
}
|
|
39
|
if (!surface_exists(old_screen_surf))
|
|
40
|
old_screen_surf = surface_create(640, 480);
|
|
41
|
if (!active || timer <= 0)
|
|
42
|
surface_copy(old_screen_surf, 0, 0, application_surface);
|
|
43
|
if (!active || timer <= 0)
|
|
44
|
exit;
|
|
45
|
if (!surface_exists(screen_surf))
|
|
46
|
screen_surf = surface_create(640, 480);
|
|
47
|
surface_set_target(screen_surf);
|
|
48
|
draw_clear_alpha(c_black, 1);
|
|
49
|
var _strength = strength * (timer / lifetime);
|
|
50
|
var _noisec = 0;
|
|
51
|
var _num = -1;
|
|
52
|
var _scany = 0;
|
|
53
|
if (!shader)
|
|
54
|
{
|
|
55
|
for (i = 0; i < 480; i += 2)
|
|
56
|
{
|
|
57
|
_noisec = surface_getpixel(noise_surf, scroll ? 0 : scan_x, _scany);
|
|
58
|
_num = colour_get_red(_noisec);
|
|
59
|
var _val = (_num - 128) / 128;
|
|
60
|
var _sine = _val * (scroll ? strength : _strength);
|
|
61
|
var _yy = scroll ? scr_wrap_newscr_wrap_new
function scr_wrap_new()
{
var _val = argument[0];
var _max = argument[2];
var _min = argument[1];
if ((_val % 1) == 0)
{
while (_val > _max || _val < _min)
{
if (_val > _max)
{
_val = (_min + _val) - _max - 1;
}
else if (_val < _min)
{
_val = ((_max + _val) - _min) + 1;
}
else
{
}
}
return _val;
}
else
{
var _old = argument[0] + 1;
while (_val != _old)
{
_old = _val;
if (_val < _min)
{
_val = _max - (_min - _val);
}
else if (_val > _max)
{
_val = _min + (_val - _max);
}
else
{
}
}
return _val;
}
} (i - ((timer / lifetime) * 480), 0, 480) : i;
|
|
62
|
surface_copy_part(screen_surf, _sine, i, application_surface, 0, _yy, 640, 2);
|
|
63
|
if (_sine != 0 && wrap_around)
|
|
64
|
surface_copy_part(screen_surf, _sine - (sign(_sine) * 640), i, application_surface, 0, _yy, 640, 2);
|
|
65
|
_scany++;
|
|
66
|
}
|
|
67
|
}
|
|
68
|
else if (scroll)
|
|
69
|
{
|
|
70
|
var _yy = scroll ? scr_wrap_newscr_wrap_new
function scr_wrap_new()
{
var _val = argument[0];
var _max = argument[2];
var _min = argument[1];
if ((_val % 1) == 0)
{
while (_val > _max || _val < _min)
{
if (_val > _max)
{
_val = (_min + _val) - _max - 1;
}
else if (_val < _min)
{
_val = ((_max + _val) - _min) + 1;
}
else
{
}
}
return _val;
}
else
{
var _old = argument[0] + 1;
while (_val != _old)
{
_old = _val;
if (_val < _min)
{
_val = _max - (_min - _val);
}
else if (_val > _max)
{
_val = _min + (_val - _max);
}
else
{
}
}
return _val;
}
} ((1 - (timer / lifetime)) * 500, 0, 480) : i;
|
|
71
|
surface_copy(screen_surf, 0, -_yy, old_screen_surf);
|
|
72
|
surface_copy(screen_surf, 0, 500 - _yy, application_surface);
|
|
73
|
}
|
|
74
|
else
|
|
75
|
{
|
|
76
|
surface_copy(screen_surf, 0, 0, application_surface);
|
|
77
|
}
|
|
78
|
surface_reset_target();
|
|
79
|
if (shader)
|
|
80
|
{
|
|
81
|
var sampler_index = shader_get_sampler_index(shd_channel_change, "noiseTexture");
|
|
82
|
var noise_texture = surface_get_texture(noise_surf);
|
|
83
|
if (scroll)
|
|
84
|
_strength /= 3;
|
|
85
|
shader_set(shd_channel_change);
|
|
86
|
shader_set_uniform_f(shader_get_uniform(shd_channel_change, "texel"), 0.0015625, 0.0020833333333333333);
|
|
87
|
texture_set_stage(sampler_index, noise_texture);
|
|
88
|
shader_set_uniform_f(shader_get_uniform(shd_channel_change, "noiseX"), scan_x / _perlin_size);
|
|
89
|
shader_set_uniform_f(shader_get_uniform(shd_channel_change, "strength"), _strength);
|
|
90
|
draw_surface(screen_surf, camerax(), cameray());
|
|
91
|
shader_reset();
|
|
92
|
}
|
|
93
|
else
|
|
94
|
{
|
|
95
|
draw_surface(screen_surf, camerax(), cameray());
|
|
96
|
}
|
|
97
|
scan_x = floor(scan_x);
|
|
98
|
scan_x = scr_wrap_newscr_wrap_new
function scr_wrap_new()
{
var _val = argument[0];
var _max = argument[2];
var _min = argument[1];
if ((_val % 1) == 0)
{
while (_val > _max || _val < _min)
{
if (_val > _max)
{
_val = (_min + _val) - _max - 1;
}
else if (_val < _min)
{
_val = ((_max + _val) - _min) + 1;
}
else
{
}
}
return _val;
}
else
{
var _old = argument[0] + 1;
while (_val != _old)
{
_old = _val;
if (_val < _min)
{
_val = _max - (_min - _val);
}
else if (_val > _max)
{
_val = _min + (_val - _max);
}
else
{
}
}
return _val;
}
} (scan_x + (scroll_speed * scroll_dir * (timer / lifetime) * 4), 0, 239);
|
|
99
|
if (!infinite && timer > 0)
|
|
100
|
{
|
|
101
|
timer--;
|
|
102
|
if (timer <= 0)
|
|
103
|
snd_stop(static_noise);
|
|
104
|
}
|
|
105
|
siner++;
|