mirror of https://github.com/profan/ld-39-jam.git
83 lines
2.4 KiB
GDScript
83 lines
2.4 KiB
GDScript
extends KinematicBody2D
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onready var sprite = get_node("Sprite")
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onready var camera = get_node("Camera2D")
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onready var left_particles = get_node("Sprite/LeftThruster")
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onready var right_particles = get_node("Sprite/RightThruster")
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onready var engine_particles = get_node("Sprite/Engine")
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onready var left_gun = get_node("Sprite/LeftGun")
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onready var right_gun = get_node("Sprite/RightGun")
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var mov_speed = 64 # pixels per second
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var ship_vel = Vector2(0, 0)
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var ship_max_vel = 100 # pixels per second
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var ship_accel = 25 # pixels per second.. per second?
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var ship_turn_speed = deg2rad(180) # degrees per second.. i guess?
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var ship_dir = Vector2(1, 0)
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var ship_mass = 61
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var is_moving = false
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func _ready():
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set_fixed_process(true)
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left_particles.set_emitting(false)
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right_particles.set_emitting(false)
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func turn_towards(delta, pos):
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var target_dir = (pos - get_global_pos()).normalized()
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var cpd = target_dir.dot(ship_dir.rotated(deg2rad(90)))
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var as = asin(cpd)
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var ca = clamp(as, (-ship_turn_speed) * delta, (ship_turn_speed) * delta)
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left_particles.set_param(Particles2D.PARAM_LINEAR_VELOCITY, 400 * abs(ca))
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right_particles.set_param(Particles2D.PARAM_LINEAR_VELOCITY, 400 * abs(ca))
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if ca < -0.01:
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left_particles.set_emitting(false)
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right_particles.set_emitting(true)
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elif ca > 0.01:
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left_particles.set_emitting(true)
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right_particles.set_emitting(false)
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else:
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left_particles.set_emitting(false)
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right_particles.set_emitting(false)
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ship_dir = ship_dir.rotated(-ca)
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func _fixed_process(delta):
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var mov_delta = Vector2(0, 0)
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turn_towards(delta, get_global_mouse_pos())
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if Input.is_action_pressed("player_move_forwards"):
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is_moving = true
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mov_delta += -ship_dir
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elif Input.is_action_pressed("player_move_backwards"):
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mov_delta += ship_dir
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else:
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is_moving = false
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if Input.is_action_pressed("player_attack_primary"):
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left_gun.fire(delta, ship_vel, -ship_dir)
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right_gun.fire(delta, ship_vel, -ship_dir)
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elif Input.is_action_pressed("player_attack_secondary"):
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pass
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if Input.is_action_pressed("player_switch_up"):
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pass
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elif Input.is_action_pressed("player_switch_down"):
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pass
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sprite.set_rot(ship_dir.angle())
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var new_vel = (ship_vel + (mov_delta * (delta * ship_accel))).clamped(ship_max_vel)
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var diff = new_vel - ship_vel
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ship_vel += diff
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self.move(ship_vel)
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ship_vel = ship_vel / (delta * ship_mass)
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engine_particles.set_emitting(is_moving)
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