mirror of
https://github.com/JohnBreaux/Boat-Battle.git
synced 2025-02-04 12:28:35 +00:00
Collision is good
This commit is contained in:
@@ -1,110 +1,59 @@
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extends RigidBody2D
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# Declare member variables here. Examples:
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# var a = 2
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# var b = "text"
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var held = false
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var originalPos
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var snapOriginalPos = false
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var mousePos
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var vertical = true
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var startingPos
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# Ships are all named starting with their length,
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# So we cast from string to int, on the ship name, and get the length
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onready var ship_length = int(name)
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var collision = false
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# Called when the node enters the scene tree for the first time.
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func _ready():
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mode = MODE_KINEMATIC
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# Snap the ships to the grid, so the engine won't get mad when they're moved away from the starting position every frame
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position = (position - offset).snapped(Vector2(32, 32)) + offset
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startingPos = position
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var _errno = 0
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_errno = find_parent("Game").connect("two_ship_collide", self, "if_ship_stacked")
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_errno = find_parent("Game").connect("three_shipA_collide", self, "if_ship_stacked")
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_errno = find_parent("Game").connect("three_shipB_collide", self, "if_ship_stacked")
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_errno = find_parent("Game").connect("four_ship_collide", self, "if_ship_stacked")
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_errno = find_parent("Game").connect("five_ship_collide", self, "if_ship_stacked")
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var _trash
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# Connect to my own signals, and not the signals of my fellowships
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# PLEASE don't parameterize; there's no way to tell these signals apart with the args the engine provides.
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_trash = connect("body_entered", self, "ship_stacked")
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_trash = connect("body_exited", self, "ship_unstacked")
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# Radius of the "knob" on the center of each ship
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var click_radius = 16
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var orient = 0;
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func _input(event):
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if event is InputEventMouseButton and event.button_index == BUTTON_LEFT:
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if (event.position - position).length() < click_radius:
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if not held and event.pressed:
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AudioBus.emit_signal("button_clicked")
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held = true;
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pickup()
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if held and not event.pressed:
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held = false;
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if (position.x > 17.4 and position.x < 335.5) and (position.y > 20.2 and position.y < 335.5):
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position = position.snapped(Vector2(32, 32)) + Vector2(4, 4)
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else:
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drop()
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# Convert the center of this piece to board-space
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var bs_position = world_to_board_space(position)
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# Check whether the piece is within half a board-space of the grid (-0.5, 9.5)
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if not (bs_position.x > -0.5 and bs_position.x < 9.5 and bs_position.y > -0.5 and bs_position.y < 9.5):
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# if not (position.x > 17.4 and position.x < 335.5) and (position.y > 20.2 and position.y < 335.5):
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if originalPos != null:
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position = originalPos
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collision = true
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rotation = 0
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vertical = true
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# 2-Ship
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if (get_parent().get_node("2Ship").rotation_degrees == 0):
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if (get_parent().get_node("2Ship").position.y > 308):
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position = originalPos
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rotation = 0
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vertical = true
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if (get_parent().get_node("2Ship").rotation_degrees == -90):
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if (get_parent().get_node("2Ship").position.x > 308):
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position = originalPos
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rotation = 0
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vertical = true
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# 3-Ship A
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if (get_parent().get_node("3ShipA").rotation_degrees == 0):
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if (get_parent().get_node("3ShipA").position.y > 308) or (get_parent().get_node("3ShipA").position.y < 52):
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position = originalPos
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rotation = 0
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vertical = true
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if (get_parent().get_node("3ShipA").rotation_degrees == -90):
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if (get_parent().get_node("3ShipA").position.x > 308) or (get_parent().get_node("3ShipA").position.x < 52):
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position = originalPos
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rotation = 0
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vertical = true
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# 3-Ship B
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if (get_parent().get_node("3ShipB").rotation_degrees == 0):
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if (get_parent().get_node("3ShipB").position.y > 308) or (get_parent().get_node("3ShipB").position.y < 52):
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position = originalPos
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rotation = 0
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vertical = true
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if (get_parent().get_node("3ShipB").rotation_degrees == -90):
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if (get_parent().get_node("3ShipB").position.x > 308) or (get_parent().get_node("3ShipB").position.x < 52):
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position = originalPos
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rotation = 0
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vertical = true
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# 4-Ship
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if (get_parent().get_node("4Ship").rotation_degrees == 0):
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if (get_parent().get_node("4Ship").position.y > 276.8) or (get_parent().get_node("4Ship").position.y < 52):
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position = originalPos
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rotation = 0
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vertical = true
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if (get_parent().get_node("4Ship").rotation_degrees == -90):
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if (get_parent().get_node("4Ship").position.x > 276.8) or (get_parent().get_node("4Ship").position.x < 52):
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position = originalPos
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rotation = 0
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vertical = true
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# 5-Ship
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if (get_parent().get_node("5Ship").rotation_degrees == 0):
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if (get_parent().get_node("5Ship").position.y > 276.8) or (get_parent().get_node("5Ship").position.y < 84.8):
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position = originalPos
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rotation = 0
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vertical = true
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if (get_parent().get_node("5Ship").rotation_degrees == -90):
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if (get_parent().get_node("5Ship").position.x > 276.8) or (get_parent().get_node("5Ship").position.x < 84.8):
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position = originalPos
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rotation = 0
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vertical = true
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if event is InputEventMouseMotion and held:
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if snapOriginalPos == false:
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originalPos = position
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snapOriginalPos = true
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position = event.position;
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# Save the moise position, so _physics_process can use it
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mousePos = event.position;
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if event.is_action_pressed("ui_rotate"):
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if held:
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@@ -112,117 +61,133 @@ func _input(event):
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if checkOriginalPos():
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return
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else:
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AudioBus.emit_signal("button_clicked")
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AudioBus.emit_signal("button_clicked")
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if originalPos == null:
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if position == originalPos:
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return
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elif(event.position - position).length() < click_radius:
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if vertical == true:
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rotation = (-PI/2)
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vertical = false
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else:
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rotation = 0
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vertical = true
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# Rotation has been moved to _physics_process,
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# as per recommendation of godot_engine.org
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#rotation = (-PI/2)
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vertical = not vertical
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# Offset from the corner of the screen to the corner of the board
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const offset = Vector2(36, 36)
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# The previous verticality of the object
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var prev_vertical = true
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# The previous position of the object
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var prev_position = Vector2(0,0)
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# The number of frames after an object is released to check for physics updates
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var released = 0
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# _physics_process: called in place of the physics processor
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# Checks collision and updates the position and rotation of the object
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func _physics_process(_delta):
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# calculate whether the piece has been rotated or moved
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var rotated = prev_vertical != vertical
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var moved = prev_position != position
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# If the piece is held, move it to the mouse:
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if held and mousePos and mousePos != position:
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position = mousePos
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mousePos = null
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if(position.x > 17.4 and position.x < 335.5) and (position.y > 20.2 and position.y < 335.5):
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# 2-Ship
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if (get_parent().get_node("2Ship").rotation_degrees == 0):
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if (get_parent().get_node("2Ship").position.y > 308):
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get_parent().get_node("2Ship").position.y -= 32
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if (get_parent().get_node("2Ship").rotation_degrees == -90):
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if (get_parent().get_node("2Ship").position.x > 308):
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get_parent().get_node("2Ship").position.x -= 32
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# Snap it to the grid if not held (and previously moved)
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if not held and moved:
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position = (position - offset).snapped(Vector2(32, 32)) + offset
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prev_position = position
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# 3-Ship A
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if (get_parent().get_node("3ShipA").rotation_degrees == 0):
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if (get_parent().get_node("3ShipA").position.y > 308):
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get_parent().get_node("3ShipA").position.y -= 32
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if (get_parent().get_node("3ShipA").position.y < 52):
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get_parent().get_node("3ShipA").position.y += 32
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if (get_parent().get_node("3ShipA").rotation_degrees == -90):
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if (get_parent().get_node("3ShipA").position.x > 308):
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get_parent().get_node("3ShipA").position.x -= 32
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if (get_parent().get_node("3ShipA").position.x < 52):
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get_parent().get_node("3ShipA").position.x += 32
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# 3-Ship B
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if (get_parent().get_node("3ShipB").rotation_degrees == 0):
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if (get_parent().get_node("3ShipB").position.y > 308):
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get_parent().get_node("3ShipB").position.y -= 32
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if (get_parent().get_node("3ShipB").position.y < 52):
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get_parent().get_node("3ShipB").position.y += 32
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if (get_parent().get_node("3ShipB").rotation_degrees == -90):
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if (get_parent().get_node("3ShipB").position.x > 308):
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get_parent().get_node("3ShipB").position.x -= 32
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if (get_parent().get_node("3ShipB").position.x < 52):
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get_parent().get_node("3ShipB").position.x += 32
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# 4-Ship
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if (get_parent().get_node("4Ship").rotation_degrees == 0):
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if (get_parent().get_node("4Ship").position.y > 308.8):
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get_parent().get_node("4Ship").position.y -= 64;
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elif (get_parent().get_node("4Ship").position.y > 276.8):
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get_parent().get_node("4Ship").position.y -= 32;
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if (get_parent().get_node("4Ship").position.y < 52):
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get_parent().get_node("4Ship").position.y += 32
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if (get_parent().get_node("4Ship").rotation_degrees == -90):
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if (get_parent().get_node("4Ship").position.x > 308.8):
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get_parent().get_node("4Ship").position.x -= 64
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elif (get_parent().get_node("4Ship").position.x > 276.8):
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get_parent().get_node("4Ship").position.x -= 32
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if (get_parent().get_node("4Ship").position.x < 52):
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get_parent().get_node("4Ship").position.x += 32
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# 5-Ship
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if (get_parent().get_node("5Ship").rotation_degrees == 0):
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if (get_parent().get_node("5Ship").position.y > 308.8):
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get_parent().get_node("5Ship").position.y -= 64
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elif (get_parent().get_node("5Ship").position.y > 276.8):
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get_parent().get_node("5Ship").position.y -= 32
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if (get_parent().get_node("5Ship").position.y < 52):
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get_parent().get_node("5Ship").position.y += 64
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elif (get_parent().get_node("5Ship").position.y < 84.8):
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get_parent().get_node("5Ship").position.y += 32
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if (get_parent().get_node("5Ship").rotation_degrees == -90):
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if (get_parent().get_node("5Ship").position.x > 308.8):
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get_parent().get_node("5Ship").position.x -= 64
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elif (get_parent().get_node("5Ship").position.x > 276.8):
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get_parent().get_node("5Ship").position.x -= 32
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if (get_parent().get_node("5Ship").position.x < 52):
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get_parent().get_node("5Ship").position.x += 64
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elif (get_parent().get_node("5Ship").position.x < 84.8):
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get_parent().get_node("5Ship").position.x += 32
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# Check collisions after released, reset if colliding
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if collision and released:
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position = startingPos
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# Called every frame. 'delta' is the elapsed time since the previous frame.
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#func _process(delta):
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# pass
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# If it's been moved or rotated, snap it to the board
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if released or rotated:
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# check whether the ends of the piece are within the board
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var linear_move = check_extents(position, vertical, ship_length)
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# if not, move them back inside
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if linear_move:
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if vertical:
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position += 32 * Vector2(0, linear_move)
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else:
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position += 32 * Vector2(linear_move, 0)
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pass
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# Rotate if the piece needs to be rotated
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if rotated:
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prev_vertical = vertical
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rotation = -PI/2 * int(not vertical) # int(true) == 1, int(false) == 0
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# Count down the number of physics timesteps left until the piece can stop processing
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if released > 0:
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released = released - 1
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func pickup():
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if held:
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return
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mode = RigidBody2D.MODE_STATIC
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held = true
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if not held:
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raise() # Render this ship on top of other ships
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held = true # mark it as held
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collision = false # Assume we're not colliding by default
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func drop(impulse=Vector2.ZERO):
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func drop():
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if held:
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mode = RigidBody2D.MODE_RIGID
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apply_central_impulse(impulse)
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held = false
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released = 1 # mark the node as released
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held = false # mark the node as not held
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snapOriginalPos = false
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func checkOriginalPos():
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if position == startingPos:
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return true
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else:
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return false
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func if_ship_stacked(ship):
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if !held && ship == name:
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position = startingPos
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rotation = 0
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print("we colliding over here")
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return
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func checkOriginalPos():
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return position == startingPos
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# Called when *this* ship collides with another ship
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func ship_stacked(_body):
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collision = true
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# Called when *this* ship stops colliding with another ship
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func ship_unstacked(_body):
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collision = false
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# Calculate the extents (front to back) of the ship and check whether they're on the board
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# Returns how many squares to move the ship along its orientation axis (positive or negative)
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func check_extents(center, orientation, length):
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center = world_to_board_space(center) # Convert to board-space (0-10)
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print("Center: ", center)
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# Calculate the position of the front of the ship
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# Orientation is true when the ship is vertical
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var bow = vectorget(center, orientation) - floor((length - 1) / 2)
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print("Bow: ", bow)
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# if out of bounds, return how much to move the ship by
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if bow < 0:
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print("return: ", -bow)
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return -bow
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# Calculate the position of the rear of the ship
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var stern = vectorget(center, orientation) + floor(length / 2)
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print("Stern: ", stern)
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# If out of bounds, return how much to move the ship by
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if stern >= 10:
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print("return: ", -(stern - 9))
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return -(stern - 9)
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print("return: ", 0)
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return 0
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# Convert the world-space coordinates to positions on the board
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func world_to_board_space(vector):
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# Do math
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var res = (vector - offset) / 32 # Subtract the distance between the screen corner and square (0,0)
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return res
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# Inverse of the above function.
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func board_to_world_space(vector):
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# Do math
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var res = (vector * 32) + offset #Invert the above function
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return res #Truncate decimals
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# index a Vector2 like an array
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# Why is this needed?
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# So we can discard the unimportant axis! (a ship is always 1 unit wide!)
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func vectorget(vector, axis):
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if axis:
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return vector.y
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else:
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return vector.x
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