tilemap collision demo

.gitignore

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+.import
+logs/

tilemap_collision/Ball.gd

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+extends RigidBody2D
+
+signal collided
+
+func _integrate_forces(state):
+	for i in state.get_contact_count():
+		var collider = state.get_contact_collider_object(i)
+		var cpos = state.get_contact_collider_position(i)
+		var n = state.get_contact_local_normal(i)
+		emit_signal('collided', collider, cpos, n)

tilemap_collision/Ball.tscn

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+[gd_scene load_steps=4 format=2]
+
+[ext_resource path="res://Ball.gd" type="Script" id=1]
+[ext_resource path="res://icon.png" type="Texture" id=2]
+
+[sub_resource type="CircleShape2D" id=1]
+
+custom_solver_bias = 0.0
+radius = 32.1762
+
+[node name="Ball" type="RigidBody2D"]
+
+input_pickable = false
+collision_layer = 1
+collision_mask = 1
+mode = 0
+mass = 1.0
+friction = 1.0
+bounce = 1.0
+gravity_scale = 5.0
+custom_integrator = false
+continuous_cd = 0
+contacts_reported = 1
+contact_monitor = true
+sleeping = false
+can_sleep = true
+linear_velocity = Vector2( -200, 0 )
+linear_damp = 0.0
+angular_velocity = 0.0
+angular_damp = 0.0
+script = ExtResource( 1 )
+_sections_unfolded = [ "Angular", "Linear" ]
+
+[node name="Sprite" type="Sprite" parent="." index="0"]
+
+modulate = Color( 1, 0, 0, 1 )
+texture = ExtResource( 2 )
+_sections_unfolded = [ "Visibility" ]
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="." index="1"]
+
+shape = SubResource( 1 )
+
+

tilemap_collision/Character/Character.gd

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+# Simple K2D character for testing/demos
+extends KinematicBody2D
+
+signal collided
+
+export var gravity = 2500
+export var speed = 400
+export var jump = -900
+
+var jumping = false
+var velocity = Vector2()
+
+func get_input():
+	velocity.x = 0
+	jumping = false
+	if Input.is_action_pressed('ui_right'):
+		velocity.x += 1
+	if Input.is_action_pressed('ui_left'):
+		velocity.x -= 1
+	velocity.x *= speed
+	if Input.is_action_just_pressed('ui_select'):
+		jumping = true
+
+func _physics_process(delta):
+	velocity.y += gravity * delta
+	get_input()
+	velocity = move_and_slide(velocity, Vector2(0, -1))
+	for i in get_slide_count():
+		var collision = get_slide_collision(i)
+		if collision:
+			emit_signal('collided', collision)
+
+	if is_on_floor() and jumping:
+		velocity.y = jump

tilemap_collision/Character/Character.tscn

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+[gd_scene load_steps=4 format=2]
+
+[ext_resource path="res://Character/Character.gd" type="Script" id=1]
+[ext_resource path="res://icon.png" type="Texture" id=2]
+
+[sub_resource type="RectangleShape2D" id=1]
+
+custom_solver_bias = 0.0
+extents = Vector2( 24.8646, 32.2074 )
+
+[node name="Character" type="KinematicBody2D"]
+
+input_pickable = false
+collision_layer = 1
+collision_mask = 1
+collision/safe_margin = 0.08
+script = ExtResource( 1 )
+gravity = 2500
+speed = 400
+jump = -900
+
+[node name="Sprite" type="Sprite" parent="." index="0"]
+
+texture = ExtResource( 2 )
+region_rect = Rect2( 242, 150, 39, 48 )
+_sections_unfolded = [ "Region" ]
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="." index="1"]
+
+shape = SubResource( 1 )
+
+[node name="Camera2D" type="Camera2D" parent="." index="2"]
+
+anchor_mode = 1
+rotating = false
+current = true
+zoom = Vector2( 1, 1 )
+limit_left = -10000000
+limit_top = -10000000
+limit_right = 10000000
+limit_bottom = 10000000
+limit_smoothed = false
+drag_margin_h_enabled = true
+drag_margin_v_enabled = true
+smoothing_enabled = false
+smoothing_speed = 5.0
+offset_v = 0.0
+offset_h = 0.0
+drag_margin_left = 0.2
+drag_margin_top = 0.2
+drag_margin_right = 0.2
+drag_margin_bottom = 0.2
+editor_draw_screen = true
+editor_draw_limits = false
+editor_draw_drag_margin = false
+
+

tilemap_collision/Main.gd

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+extends Node2D
+
+var collision_pos = []
+
+func _process(delta):
+	var cpos = $TileMap.world_to_map($Character.position)
+	$CanvasLayer/GridContainer/TilePos.text = str(cpos)
+	var mpos = $TileMap.world_to_map(get_global_mouse_position())
+	$CanvasLayer/GridContainer/MousePos.text = str(mpos)
+
+func _on_Character_collided(collision):
+	# KinematicCollision2D object emitted by character
+	if collision.collider is TileMap:
+		var tile_pos = collision.collider.world_to_map($Character.position)
+		tile_pos -= collision.normal  # Colliding tile
+		var tile = collision.collider.get_cellv(tile_pos)
+		if tile > 0:
+			$TileMap.set_cellv(tile_pos, tile-1)
+
+func _on_Ball_collided(collider, pos, normal):
+	if collider is TileMap:
+		var tile_pos = collider.world_to_map(pos - normal)
+		var tile = collider.get_cellv(tile_pos)
+		if tile > 0:
+			collider.set_cellv(tile_pos, tile-1)
+

tilemap_collision/Main.tscn

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+[gd_scene load_steps=6 format=2]
+
+[ext_resource path="res://Main.gd" type="Script" id=1]
+[ext_resource path="res://fonts/RobotoBold24.tres" type="DynamicFont" id=2]
+[ext_resource path="res://color_tiles_red.tres" type="TileSet" id=3]
+[ext_resource path="res://Character/Character.tscn" type="PackedScene" id=4]
+[ext_resource path="res://Ball.tscn" type="PackedScene" id=5]
+
+[node name="Main" type="Node2D" index="0"]
+
+script = ExtResource( 1 )
+_sections_unfolded = [ "Z Index" ]
+
+[node name="CanvasLayer" type="CanvasLayer" parent="." index="0"]
+
+editor/display_folded = true
+layer = 1
+offset = Vector2( 0, 0 )
+rotation = 0.0
+scale = Vector2( 1, 1 )
+transform = Transform2D( 1, 0, 0, 1, 0, 0 )
+
+[node name="GridContainer" type="GridContainer" parent="CanvasLayer" index="0"]
+
+anchor_left = 0.0
+anchor_top = 0.0
+anchor_right = 0.0
+anchor_bottom = 0.0
+margin_left = 18.0
+margin_top = 17.0
+margin_right = 1024.0
+margin_bottom = 105.0
+rect_pivot_offset = Vector2( 0, 0 )
+rect_clip_content = false
+mouse_filter = 1
+mouse_default_cursor_shape = 0
+size_flags_horizontal = 1
+size_flags_vertical = 1
+columns = 2
+_sections_unfolded = [ "custom_constants" ]
+
+[node name="Label2" type="Label" parent="CanvasLayer/GridContainer" index="0"]
+
+anchor_left = 0.0
+anchor_top = 0.0
+anchor_right = 0.0
+anchor_bottom = 0.0
+margin_right = 79.0
+margin_bottom = 29.0
+rect_pivot_offset = Vector2( 0, 0 )
+rect_clip_content = false
+mouse_filter = 2
+mouse_default_cursor_shape = 0
+size_flags_horizontal = 1
+size_flags_vertical = 4
+custom_fonts/font = ExtResource( 2 )
+text = "Player:"
+percent_visible = 1.0
+lines_skipped = 0
+max_lines_visible = -1
+_sections_unfolded = [ "custom_fonts" ]
+
+[node name="TilePos" type="Label" parent="CanvasLayer/GridContainer" index="1"]
+
+anchor_left = 0.0
+anchor_top = 0.0
+anchor_right = 0.0
+anchor_bottom = 0.0
+margin_left = 83.0
+margin_right = 122.0
+margin_bottom = 29.0
+rect_pivot_offset = Vector2( 0, 0 )
+rect_clip_content = false
+mouse_filter = 2
+mouse_default_cursor_shape = 0
+size_flags_horizontal = 1
+size_flags_vertical = 4
+custom_fonts/font = ExtResource( 2 )
+text = "0, 1"
+percent_visible = 1.0
+lines_skipped = 0
+max_lines_visible = -1
+_sections_unfolded = [ "custom_fonts" ]
+
+[node name="Label3" type="Label" parent="CanvasLayer/GridContainer" index="2"]
+
+anchor_left = 0.0
+anchor_top = 0.0
+anchor_right = 0.0
+anchor_bottom = 0.0
+margin_top = 33.0
+margin_right = 79.0
+margin_bottom = 62.0
+rect_pivot_offset = Vector2( 0, 0 )
+rect_clip_content = false
+mouse_filter = 2
+mouse_default_cursor_shape = 0
+size_flags_horizontal = 1
+size_flags_vertical = 4
+custom_fonts/font = ExtResource( 2 )
+text = "Mouse:"
+percent_visible = 1.0
+lines_skipped = 0
+max_lines_visible = -1
+_sections_unfolded = [ "custom_fonts" ]
+
+[node name="MousePos" type="Label" parent="CanvasLayer/GridContainer" index="3"]
+
+anchor_left = 0.0
+anchor_top = 0.0
+anchor_right = 0.0
+anchor_bottom = 0.0
+margin_left = 83.0
+margin_top = 33.0
+margin_right = 122.0
+margin_bottom = 62.0
+rect_pivot_offset = Vector2( 0, 0 )
+rect_clip_content = false
+mouse_filter = 2
+mouse_default_cursor_shape = 0
+size_flags_horizontal = 1
+size_flags_vertical = 4
+custom_fonts/font = ExtResource( 2 )
+text = "0, 1"
+percent_visible = 1.0
+lines_skipped = 0
+max_lines_visible = -1
+_sections_unfolded = [ "custom_fonts" ]
+
+[node name="TileMap" type="TileMap" parent="." index="1"]
+
+mode = 0
+tile_set = ExtResource( 3 )
+cell_size = Vector2( 64, 64 )
+cell_quadrant_size = 16
+cell_custom_transform = Transform2D( 1, 0, 0, 1, 0, 0 )
+cell_half_offset = 2
+cell_tile_origin = 0
+cell_y_sort = false
+cell_clip_uv = false
+collision_use_kinematic = false
+collision_friction = 1.0
+collision_bounce = 0.0
+collision_layer = 1
+collision_mask = 1
+occluder_light_mask = 1
+format = 1
+tile_data = PoolIntArray( -65518, 15, 0, 18, 15, 0, 65538, 15, 0, 65554, 15, 0, 131074, 15, 0, 131090, 15, 0, 196610, 15, 0, 196619, 15, 0, 196626, 15, 0, 262146, 15, 0, 262155, 15, 0, 262162, 15, 0, 327682, 15, 0, 327689, 15, 0, 327690, 15, 0, 327691, 15, 0, 327692, 15, 0, 327693, 15, 0, 327694, 15, 0, 327695, 15, 0, 327696, 15, 0, 327697, 15, 0, 327698, 15, 0, 393218, 15, 0, 393219, 15, 0, 393220, 15, 0, 393221, 15, 0, 393222, 15, 0, 393223, 15, 0, 393224, 15, 0, 393225, 15, 0 )
+_sections_unfolded = [ "Material", "Visibility" ]
+
+[node name="Character" parent="." index="2" instance=ExtResource( 4 )]
+
+show_behind_parent = true
+position = Vector2( 618.057, 269.024 )
+_sections_unfolded = [ "Visibility" ]
+
+[node name="Ball" parent="." index="3" instance=ExtResource( 5 )]
+
+position = Vector2( 336.138, 73.674 )
+
+[connection signal="collided" from="Character" to="." method="_on_Character_collided"]
+
+[connection signal="collided" from="Ball" to="." method="_on_Ball_collided"]
+
+

tilemap_collision/assets/TileSetMaker.gd

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+extends Node2D
+
+var tilesize = Vector2(64, 64)
+var w = 4
+var h = 4
+
+onready var texture = $Sprite.texture
+
+func _ready():
+	var tex_width = texture.get_width() / tilesize.x
+	var tex_height = texture.get_width() / tilesize.y
+	var ts = TileSet.new()
+	for x in range(tex_width):
+		for y in range(tex_height):
+			var region = Rect2(x*tilesize.x, y*tilesize.y, tilesize.x, tilesize.y)
+			var id = x + y * h
+			ts.create_tile(id)
+			ts.tile_set_texture(id, texture)
+			ts.tile_set_region(id, region)
+			var s = RectangleShape2D.new()
+			s.extents = tilesize/2
+			ts.tile_set_shape(id, 0, s)
+			var xform = ts.tile_get_shape_transform(id, 0)
+			xform.origin += tilesize/2
+			ts.tile_set_shape_transform(id, 0, xform)
+	ResourceSaver.save("res://color_tiles_red.tres", ts)

tilemap_collision/assets/TileSetMaker.tscn

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+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://assets/TileSetMaker.gd" type="Script" id=1]
+[ext_resource path="res://assets/number_tiles_red.png" type="Texture" id=2]
+
+
+[node name="TileSetMaker" type="Node2D"]
+
+script = ExtResource( 1 )
+
+[node name="Sprite" type="Sprite" parent="." index="0"]
+
+texture = ExtResource( 2 )
+
+