68 lines
2.9 KiB
Text
68 lines
2.9 KiB
Text
# update.ludic - a frame of the body: the stick in the camera's frame, the step, the gait, the camera
|
|
export function char_update(base_st: mut BaseState, character_st: mut CharacterState, ix0: float, iz0: float, run0: bool, jump0: bool, dyaw: float, dpitch: float, dt: float) -> void {
|
|
var run = run0 and character_st.chr_can_run
|
|
var ix = ix0
|
|
var iz = iz0
|
|
var jump = jump0
|
|
character_st.chr_step = 0.0
|
|
character_st.chr_time = character_st.chr_time + dt
|
|
character_st.chr_water = CharacterGround.water(character_st.chr_x, character_st.chr_z)
|
|
chr_sit_tick(character_st, dt)
|
|
if CharacterBody.riding() {
|
|
chr_ride_update(character_st, ix, iz, run, dyaw, dpitch, dt)
|
|
return
|
|
}
|
|
if CharacterBody.sneaking() { run = false }
|
|
# sitting: any step stands up, and nothing else moves
|
|
if character_st.chr_sit and (Math.abs(ix) > 0.3 or Math.abs(iz) > 0.3 or jump) { character_st.chr_sit = false }
|
|
if character_st.chr_sit {
|
|
ix = 0.0
|
|
iz = 0.0
|
|
jump = false
|
|
}
|
|
# the stick in the camera's frame: forward on the ground is (-sin yaw, -cos yaw)
|
|
let cy = Math.cos(character_st.chr_cam_yaw)
|
|
let sy = Math.sin(character_st.chr_cam_yaw)
|
|
var dx = -sy * iz + cy * ix
|
|
var dz = -cy * iz - sy * ix
|
|
var mag = Math.sqrt(dx * dx + dz * dz)
|
|
if mag > 1.0 {
|
|
dx = dx / mag
|
|
dz = dz / mag
|
|
mag = 1.0
|
|
}
|
|
chr_steer(character_st, dx, dz, mag, run, dt)
|
|
let dist = chr_travel(base_st, character_st, dx, dz, -Math.sin(character_st.chr_yaw), -Math.cos(character_st.chr_yaw), jump, dt)
|
|
chr_gait(base_st, character_st, dist, dyaw, dpitch, dt)
|
|
char_camera(character_st, dt)
|
|
}
|
|
|
|
# something else carries the body (CharacterBody.ride moves it with char_ride_at); the orbit
|
|
# drifts behind whatever it is on
|
|
function chr_ride_update(character_st: mut CharacterState, ix: float, iz: float, run: bool, dyaw: float, dpitch: float, dt: float) -> void {
|
|
CharacterBody.ride(ix, iz, run, dt)
|
|
chr_look(character_st, dyaw, dpitch)
|
|
if dyaw == 0.0 and not CharacterInput.look_always() { character_st.chr_cam_yaw = character_st.chr_cam_yaw + char_wrap(character_st.chr_yaw - character_st.chr_cam_yaw) * Math.min(1.0, 1.5 * dt) }
|
|
char_camera(character_st, dt)
|
|
}
|
|
|
|
# a frame from the input port: the game's devices, read once, stepping the body
|
|
export function char_tick(base_st: mut BaseState, character_st: mut CharacterState, dt: float) -> void {
|
|
var ix = 0.0
|
|
var iz = 0.0
|
|
var run = false
|
|
var jump = false
|
|
var dyaw = 0.0
|
|
var dpitch = 0.0
|
|
if character_st.chr_holds == 0 {
|
|
ix = CharacterInput.move_x()
|
|
iz = CharacterInput.move_z()
|
|
run = CharacterInput.run()
|
|
jump = CharacterInput.jump()
|
|
dyaw = CharacterInput.look_yaw()
|
|
dpitch = CharacterInput.look_pitch()
|
|
let wheel = CharacterInput.zoom()
|
|
if wheel != 0.0 { character_st.chr_cam_dist = Math.clamp(character_st.chr_cam_dist - wheel * 0.35, 1.8, 9.0) }
|
|
}
|
|
char_update(base_st, character_st, ix, iz, run, jump, dyaw, dpitch, dt)
|
|
}
|