mirror of
https://github.com/vlang/v.git
synced 2023-08-10 21:13:21 +03:00
builtin: support a.flags.set(.noslices | .noshrink), use it in the particles example (#13818)
This commit is contained in:
@ -19,8 +19,8 @@ mut:
|
||||
}
|
||||
|
||||
pub fn (mut s System) init(sc SystemConfig) {
|
||||
unsafe { s.pool.flags.set(.noslices) }
|
||||
unsafe { s.bin.flags.set(.noslices) }
|
||||
unsafe { s.pool.flags.set(.noslices | .noshrink) }
|
||||
unsafe { s.bin.flags.set(.noslices | .noshrink) }
|
||||
for i := 0; i < sc.pool; i++ {
|
||||
p := new(vec2.Vec2{f32(s.width) * 0.5, f32(s.height) * 0.5})
|
||||
s.bin << p
|
||||
@ -29,12 +29,19 @@ pub fn (mut s System) init(sc SystemConfig) {
|
||||
|
||||
pub fn (mut s System) update(dt f64) {
|
||||
mut p := &Particle(0)
|
||||
mut moved := 0
|
||||
for i := 0; i < s.pool.len; i++ {
|
||||
p = s.pool[i]
|
||||
p.update(dt)
|
||||
if p.is_dead() {
|
||||
s.bin << p
|
||||
s.pool.delete(i)
|
||||
moved++
|
||||
}
|
||||
}
|
||||
$if trace_moves_spool_to_sbin ? {
|
||||
if moved != 0 {
|
||||
eprintln('${moved:4} particles s.pool -> s.bin')
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -64,6 +71,7 @@ pub fn (mut s System) explode(x f32, y f32) {
|
||||
mut reserve := 500
|
||||
center := vec2.Vec2{x, y}
|
||||
mut p := &Particle(0)
|
||||
mut moved := 0
|
||||
for i := 0; i < s.bin.len && reserve > 0; i++ {
|
||||
p = s.bin[i]
|
||||
p.reset()
|
||||
@ -75,8 +83,14 @@ pub fn (mut s System) explode(x f32, y f32) {
|
||||
p.life_time = rand.f64_in_range(500, 2000) or { 500 }
|
||||
s.pool << p
|
||||
s.bin.delete(i)
|
||||
moved++
|
||||
reserve--
|
||||
}
|
||||
$if trace_moves_sbin_to_spool ? {
|
||||
if moved != 0 {
|
||||
eprintln('${moved:4} particles s.bin -> s.pool')
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn (mut s System) free() {
|
||||
|
Reference in New Issue
Block a user