230 lines
8.2 KiB
GDScript
230 lines
8.2 KiB
GDScript
extends CharacterBody3D
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# Hoof positions in bull_v10 local space — dust emitter offsets
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const HOOF_OFFSETS: Array = [
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Vector3(-0.30, -0.25, -0.50),
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Vector3( 0.30, -0.25, -0.50),
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Vector3(-0.30, -0.25, 0.60),
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Vector3( 0.30, -0.25, 0.60),
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]
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@onready var camera_pivot: Node3D = $SpringArmPivot
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@onready var cube_guy: Node3D = $bull_v10
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var _hoof_emitters: Array[CPUParticles3D] = []
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var _legs: Node
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var _kick_timer: float = 0.0
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var _was_on_floor: bool = false
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var _pre_slide_vel_y: float = 0.0
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enum _DustState { NONE, WALK, CHARGE }
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var _dust_state: _DustState = _DustState.NONE
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func _ready() -> void:
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add_to_group(&"player")
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_setup_hoof_dust()
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_setup_legs()
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DP.any_changed.connect(_on_dp_changed)
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func _setup_legs() -> void:
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_legs = Node.new()
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_legs.set_script(load("res://bull_legs.gd"))
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add_child(_legs)
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_legs.call(&"setup", self, cube_guy)
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func _setup_hoof_dust() -> void:
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var mat := StandardMaterial3D.new()
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mat.shading_mode = BaseMaterial3D.SHADING_MODE_UNSHADED
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mat.transparency = BaseMaterial3D.TRANSPARENCY_ALPHA
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mat.vertex_color_use_as_albedo = true
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mat.cull_mode = BaseMaterial3D.CULL_DISABLED
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var sphere := SphereMesh.new()
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sphere.radius = 0.10
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sphere.height = 0.20
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sphere.radial_segments = 4
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sphere.rings = 2
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sphere.material = mat
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var ramp := Gradient.new()
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ramp.set_color(0, Color(0.80, 0.69, 0.46, 1.0))
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ramp.set_color(1, Color(0.80, 0.69, 0.46, 0.0))
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var scale_curve := Curve.new()
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scale_curve.add_point(Vector2(0.0, 0.2))
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scale_curve.add_point(Vector2(0.4, 1.0))
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scale_curve.add_point(Vector2(1.0, 0.0))
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for offset: Vector3 in HOOF_OFFSETS:
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var p := CPUParticles3D.new()
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p.position = offset
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p.emitting = false
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p.amount = 12
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p.lifetime = DP.f("dust_lifetime")
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p.explosiveness = DP.f("dust_explosiveness")
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p.randomness = 0.6
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p.local_coords = false
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p.direction = Vector3(0.0, 1.0, 0.0)
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p.spread = DP.f("dust_spread")
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p.gravity = Vector3(0.0, DP.f("dust_gravity_y"), 0.0)
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p.initial_velocity_min = DP.f("walk_vel_min")
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p.initial_velocity_max = DP.f("walk_vel_max")
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p.scale_amount_min = DP.f("walk_scale_min")
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p.scale_amount_max = DP.f("walk_scale_max")
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p.mesh = sphere
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p.color_ramp = ramp
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p.scale_amount_curve = scale_curve
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cube_guy.add_child(p)
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_hoof_emitters.append(p)
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func _set_dust_state(new_state: _DustState) -> void:
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if new_state == _dust_state:
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return
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_dust_state = new_state
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for p: CPUParticles3D in _hoof_emitters:
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p.lifetime = DP.f("dust_lifetime")
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p.explosiveness = DP.f("dust_explosiveness")
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p.spread = DP.f("dust_spread")
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p.gravity = Vector3(0.0, DP.f("dust_gravity_y"), 0.0)
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match new_state:
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_DustState.NONE:
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p.emitting = false
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_DustState.WALK:
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p.scale_amount_min = DP.f("walk_scale_min")
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p.scale_amount_max = DP.f("walk_scale_max")
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p.initial_velocity_min = DP.f("walk_vel_min")
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p.initial_velocity_max = DP.f("walk_vel_max")
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p.emitting = true
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_DustState.CHARGE:
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p.scale_amount_min = DP.f("charge_scale_min")
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p.scale_amount_max = DP.f("charge_scale_max")
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p.initial_velocity_min = DP.f("charge_vel_min")
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p.initial_velocity_max = DP.f("charge_vel_max")
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p.emitting = true
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func _on_dp_changed(_key: String, _val: Variant) -> void:
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if _hoof_emitters.is_empty() or _dust_state == _DustState.NONE:
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return
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var prev := _dust_state
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_dust_state = _DustState.NONE
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_set_dust_state(prev)
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func _apply_thrust(dir: Vector3) -> void:
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var impulse := DP.f("thrust_impulse")
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velocity.x += dir.x * impulse
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velocity.z += dir.z * impulse
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if is_on_floor():
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velocity.y += DP.f("thrust_vertical")
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var flat := Vector2(velocity.x, velocity.z)
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var spd := flat.length()
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if spd > DP.f("max_speed"):
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var s := DP.f("max_speed") / spd
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velocity.x *= s
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velocity.z *= s
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func _apply_kick(direction: Vector3, charging: bool) -> void:
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var base := DP.f("kick_impulse") * (DP.f("charge_kick_mult") if charging else 1.0)
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# Random force variance — each kick punches a different amount
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var force := base * randf_range(1.0 - DP.f("kick_force_var"), 1.0 + DP.f("kick_force_var"))
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# Random angle spread — slight mis-kick like a real ball
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var spread := deg_to_rad(randf_range(-DP.f("kick_spread"), DP.f("kick_spread")))
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var kick_dir := direction.rotated(Vector3.UP, spread)
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velocity.x += kick_dir.x * force
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velocity.z += kick_dir.z * force
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# Vertical arc — only when grounded so arcs don't chain infinitely in the air
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if is_on_floor():
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velocity.y += DP.f("kick_vertical") * randf_range(0.75, 1.25)
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# Cap immediately after kick so charge doesn't overshoot by too much
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var flat := Vector2(velocity.x, velocity.z)
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var spd := flat.length()
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var cap := DP.f("max_speed") * (DP.f("charge_kick_mult") if charging else 1.0)
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if spd > cap:
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var s := cap / spd
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velocity.x *= s
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velocity.z *= s
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func _physics_process(delta: float) -> void:
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# ── Gravity & jump ────────────────────────────────────────────────────────
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if not is_on_floor():
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velocity += get_gravity() * delta
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if Input.is_action_just_pressed(&"jump") and is_on_floor():
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velocity.y = DP.f("jump_velocity")
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# ── Camera-relative input direction ───────────────────────────────────────
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var input_dir := Input.get_vector("move_left", "move_right", "move_forward", "move_back")
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var cam_basis := camera_pivot.global_transform.basis
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var flat_forward := -Vector3(cam_basis.z.x, 0.0, cam_basis.z.z).normalized()
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var flat_right := Vector3(cam_basis.x.x, 0.0, cam_basis.x.z).normalized()
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var direction := (flat_forward * -input_dir.y + flat_right * input_dir.x).normalized()
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var charging := Input.is_action_pressed(&"charge")
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var on_floor := is_on_floor()
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# ── Left / right click thrust (only when mouse is captured) ─────────────
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# Left click → thrust NE (forward-right diagonal)
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# Right click → thrust NW (forward-left diagonal)
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if Input.mouse_mode == Input.MOUSE_MODE_CAPTURED:
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if Input.is_action_just_pressed(&"thrust_left"):
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var ne := (flat_forward + flat_right).normalized()
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_apply_thrust(ne if ne.length() > 0.1 else flat_forward)
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if Input.is_action_just_pressed(&"thrust_right"):
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var nw := (flat_forward - flat_right).normalized()
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_apply_thrust(nw if nw.length() > 0.1 else flat_forward)
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# Reset kick timer on landing so the first kick after a bounce is immediate
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if on_floor and not _was_on_floor and direction:
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_kick_timer = 0.0
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_was_on_floor = on_floor
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# ── Periodic kick ─────────────────────────────────────────────────────────
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_kick_timer = maxf(0.0, _kick_timer - delta)
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if direction and _kick_timer <= 0.0:
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_apply_kick(direction, charging)
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_kick_timer = DP.f("kick_interval")
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# ── Rolling friction (exponential, frame-rate independent) ────────────────
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var retain := pow(DP.f("roll_damping"), delta)
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velocity.x *= retain
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velocity.z *= retain
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# ── Visual rotation follows velocity direction ─────────────────────────────
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var flat_speed := Vector2(velocity.x, velocity.z).length()
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if flat_speed > 0.4:
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var target_angle := atan2(velocity.x, velocity.z)
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cube_guy.rotation.y = lerp_angle(
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cube_guy.rotation.y, target_angle, delta * DP.f("visual_turn_speed"))
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_pre_slide_vel_y = velocity.y
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move_and_slide()
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# ── Bounce on landing ─────────────────────────────────────────────────────
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if is_on_floor() and not _was_on_floor:
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var impact := -_pre_slide_vel_y
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if impact > DP.f("bounce_min_impact"):
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velocity.y = impact * DP.f("bounce_restitution")
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# ── Dust ──────────────────────────────────────────────────────────────────
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if flat_speed > DP.f("dust_charge_spd") and on_floor:
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_set_dust_state(_DustState.CHARGE)
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elif flat_speed > DP.f("dust_walk_spd") and on_floor:
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_set_dust_state(_DustState.WALK)
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else:
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_set_dust_state(_DustState.NONE)
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