90 lines
2.4 KiB
Rust
90 lines
2.4 KiB
Rust
//! `Projectile` type.
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use crate::{bin::OptU16, err::*, fixed::{Fixed, Unit}};
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use super::damg;
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/// Reads a `PRpx` chunk.
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pub fn read(b: &[u8]) -> ResultS<(Projectile, usize)>
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{
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read_data! {
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endian: BIG, buf: b, size: 48, start: 0, data {
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let collection = OptU16[0];
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let shape = u16[2];
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let fxt_explode = OptU16[4];
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let fxt_exp_media = OptU16[6];
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let fxt_trail = OptU16[8];
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let tic_trail = u16[10];
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let max_trail = OptU16[12];
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let typ_media = OptU16[14];
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let radius = Unit[16];
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let dmg_rad = Unit[18];
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let dmg_def = damg::read[20; 12];
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let flags = u32[32] flag ProjectileFlags;
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let speed = Unit[36];
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let range = Unit[38];
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let snd_pitch = Fixed[40];
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let snd_fly = OptU16[44];
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let snd_bounce = OptU16[46];
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}
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}
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Ok((Projectile{collection, shape, fxt_explode, fxt_exp_media, fxt_trail,
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tic_trail, max_trail, typ_media, radius, dmg_rad, dmg_def,
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flags, speed, range, snd_pitch, snd_fly, snd_bounce}, 48))
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}
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/// A projectile definition.
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#[cfg_attr(feature = "serde_obj", derive(serde::Serialize))]
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#[derive(Debug, Eq, PartialEq)]
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pub struct Projectile {
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pub collection: OptU16,
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pub shape: u16,
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pub fxt_explode: OptU16,
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pub fxt_exp_media: OptU16,
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pub fxt_trail: OptU16,
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pub tic_trail: u16,
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pub max_trail: OptU16,
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pub typ_media: OptU16,
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pub radius: Unit,
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pub dmg_rad: Unit,
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pub dmg_def: damg::Damage,
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pub flags: ProjectileFlags,
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pub speed: Unit,
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pub range: Unit,
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pub snd_pitch: Fixed,
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pub snd_fly: OptU16,
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pub snd_bounce: OptU16,
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}
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c_bitfield! {
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/// Flags for a projectile.
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#[cfg_attr(feature = "serde_obj", derive(serde::Serialize))]
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pub struct ProjectileFlags: u32 {
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GUIDED = 0,
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STOP_ON_LOOP = 1,
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PERSISTENT = 2,
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ALIEN = 3,
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GRAVITY = 4,
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NO_HORZ_ERROR = 5,
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NO_VERT_ERROR = 6,
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TOGGLE_PANELS = 7,
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POS_VERT_ERROR = 8,
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MELEE = 9,
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RIPPER = 10,
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PASS_TRANS_RANDOM = 11,
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PASS_TRANS_MORE = 12,
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DOUBLE_GRAVITY = 13,
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REBOUND_FLOOR = 14,
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THROUGH_MEDIA = 15,
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BECOME_ITEM = 16,
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BLOODY = 17,
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WANDER_HORZ = 18,
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WANDER_VERT = 19,
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USE_LOW_GRAV = 20,
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PASS_MEDIA = 21,
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}
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}
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// EOF
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