GDScript physics :p
Marc Gilleron
parent
1f58edfe9b
commit
3892d546e0
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@ -0,0 +1,121 @@
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const EPSILON = 0.001
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# Gets the transformed vector for moving a box and slide.
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# This algorithm is free from tunnelling for axis-aligned movement,
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# except in some high-speed diagonal cases or huge size differences:
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# For example, if a box is fast enough to have a diagonal motion jumping from A to B,
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# it will pass through C if that other box is the only other one:
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#
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# o---o
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# | A |
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# o---o
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# o---o
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# | C |
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# o---o
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# o---o
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# | B |
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# o---o
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#
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# TODO one way to fix this would be to try a "hot side" projection instead
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#
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static func get_motion(box, motion, other_boxes):
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# The bounding box is expanded to include it's estimated version at next update.
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# This also makes the algorithm tunnelling-free
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var expanded_box = expand_with_vector(box, motion)
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var colliding_boxes = []
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for other in other_boxes:
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if expanded_box.intersects(other):
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colliding_boxes.append(other)
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if colliding_boxes.size() == 0:
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return motion
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#print("Colliding: ", colliding_boxes.size())
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var new_motion = motion
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for other in colliding_boxes:
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new_motion.y = calculate_y_offset(other, box, new_motion.y)
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box.position.y += new_motion.y
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for other in colliding_boxes:
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new_motion.x = calculate_x_offset(other, box, new_motion.x)
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box.position.x += new_motion.x
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for other in colliding_boxes:
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new_motion.z = calculate_z_offset(other, box, new_motion.z)
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box.position.z += new_motion.z
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return new_motion
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static func expand_with_vector(box, v):
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if v.x > 0:
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box.size.x += v.x
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elif v.x < 0:
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box.position.x += v.x
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box.size.x -= v.x
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if v.y > 0:
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box.size.y += v.y
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elif v.y < 0:
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box.position.y += v.y
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box.size.y -= v.y
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if v.z > 0:
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box.size.z += v.z
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elif v.z < 0:
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box.position.z += v.z
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box.size.z -= v.z
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return box
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static func calculate_z_offset(box, other, motion_z):
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if other.end.y <= box.position.y || other.position.y >= box.end.y:
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return motion_z
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if other.end.x <= box.position.x || other.position.x >= box.end.x:
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return motion_z
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if motion_z > 0.0 and other.end.z <= box.position.z:
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var off = box.position.z - other.end.z - EPSILON
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if off < motion_z:
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motion_z = off
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if motion_z < 0.0 and other.position.z >= box.end.z:
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var off = box.end.z - other.position.z + EPSILON
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if off > motion_z:
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motion_z = off
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return motion_z
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static func calculate_x_offset(box, other, motion_x):
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if other.end.z <= box.position.z || other.position.z >= box.end.z:
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return motion_x
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if other.end.y <= box.position.y || other.position.y >= box.end.y:
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return motion_x
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if motion_x > 0.0 and other.end.x <= box.position.x:
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var off = box.position.x - other.end.x - EPSILON
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if off < motion_x:
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motion_x = off
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if motion_x < 0.0 and other.position.x >= box.end.x:
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var off = box.end.x - other.position.x + EPSILON
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if off > motion_x:
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motion_x = off
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return motion_x
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static func calculate_y_offset(box, other, motion_y):
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if other.end.z <= box.position.z || other.position.z >= box.end.z:
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return motion_y
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if other.end.x <= box.position.x || other.position.x >= box.end.x:
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return motion_y
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if motion_y > 0.0 and other.end.y <= box.position.y:
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var off = box.position.y - other.end.y - EPSILON
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if off < motion_y:
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motion_y = off
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if motion_y < 0.0 and other.position.y >= box.end.y:
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var off = box.end.y - other.position.y + EPSILON
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if off > motion_y:
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motion_y = off
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return motion_y
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static func box_from_center_extents(center, extents):
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return Rect3(center - extents, 2.0*extents)
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@ -1,4 +1,4 @@
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[gd_scene load_steps=8 format=2]
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[gd_scene load_steps=9 format=2]
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[ext_resource path="res://character_controller.gd" type="Script" id=1]
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[ext_resource path="res://mouse_look.gd" type="Script" id=2]
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@ -15,56 +15,64 @@ height = 0.85
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flags_transparent = false
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flags_unshaded = false
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flags_vertex_lighting = false
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flags_on_top = false
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flags_use_point_size = false
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flags_fixed_size = false
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vertex_color_use_as_albedo = true
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vertex_color_is_srgb = false
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params_diffuse_mode = 0
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params_specular_mode = 0
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params_blend_mode = 0
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params_cull_mode = 0
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params_depth_draw_mode = 0
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params_line_width = 2.0
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params_point_size = 1.0
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params_billboard_mode = 0
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params_grow = false
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params_use_alpha_scissor = false
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albedo_color = Color( 1, 1, 1, 1 )
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specular_mode = 0
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specular_color = Color( 0.1, 0.1, 0.1, 1 )
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specular_metalness = 0.1
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specular_roughness = 0.0
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metallic = 0.0
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metallic_specular = 0.5
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metallic_texture_channel = 0
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roughness = 0.0
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roughness_texture_channel = 0
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emission_enabled = false
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normal_enabled = false
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rim_enabled = false
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clearcoat_enabled = false
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anisotropy_enabled = false
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ao_enabled = false
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height_enabled = false
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depth_enabled = false
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subsurf_scatter_enabled = false
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refraction_enabled = false
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detail_enabled = false
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uv1_scale = Vector2( 1, 1 )
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uv1_offset = Vector2( 0, 0 )
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uv2_scale = Vector2( 1, 1 )
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uv2_offset = Vector2( 0, 0 )
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uv1_scale = Vector3( 1, 1, 1 )
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uv1_offset = Vector3( 0, 0, 0 )
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uv1_triplanar = false
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uv1_triplanar_sharpness = 1.0
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uv2_scale = Vector3( 1, 1, 1 )
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uv2_offset = Vector3( 0, 0, 0 )
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uv2_triplanar = false
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uv2_triplanar_sharpness = 1.0
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[sub_resource type="CubeMesh" id=3]
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size = Vector3( 0.8, 1.8, 0.8 )
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subdivide_width = 0
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subdivide_height = 0
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subdivide_depth = 0
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[node name="CharacterAvatar" type="KinematicBody"]
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input_ray_pickable = true
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input_capture_on_drag = false
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shape_count = 1
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shapes/0/shape = SubResource( 1 )
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shapes/0/transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0 )
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shapes/0/trigger = false
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collision_layer = 3
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collision_mask = 1
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collide_with/static = true
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collide_with/kinematic = true
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collide_with/rigid = true
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collide_with/character = true
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collision/margin = 0.001
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collision/safe_margin = 0.001
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script = ExtResource( 1 )
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speed = 5.0
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gravity = 9.8
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gravity = 40.0
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jump_force = 8.0
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head = NodePath("Camera")
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terrain = null
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@ -73,8 +81,7 @@ terrain = null
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transform = Transform( 1, 0, 0, 0, -4.37114e-08, -1, 0, 1, -4.37114e-08, 0, 0, 0 )
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shape = SubResource( 1 )
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trigger = false
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_update_shape_index = 0
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disabled = false
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[node name="Camera" type="Camera" parent="."]
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@ -89,11 +96,14 @@ cull_mask = 1048575
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environment = null
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h_offset = 0.0
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v_offset = 0.0
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doppler/tracking = 0
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script = ExtResource( 2 )
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_sections_unfolded = [ "Transform" ]
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sensitivity = 0.3
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min_angle = -90
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max_angle = 90
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capture_mouse = true
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distance = 4.0
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[node name="interaction" type="Node" parent="."]
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@ -103,10 +113,16 @@ cursor_material = SubResource( 2 )
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[node name="debug_label" type="Label" parent="."]
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anchor_left = 0.0
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anchor_top = 0.0
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anchor_right = 0.0
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anchor_bottom = 0.0
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margin_right = 379.0
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margin_bottom = 325.0
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rect_pivot_offset = Vector2( 0, 0 )
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rect_clip_content = false
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mouse_filter = 2
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size_flags_horizontal = 1
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size_flags_vertical = 0
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percent_visible = 1.0
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lines_skipped = 0
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@ -131,10 +147,26 @@ shadow_color = Color( 0, 0, 0, 1 )
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shadow_bias = 0.1
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shadow_contact = 0.0
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shadow_max_distance = 0.0
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shadow_reverse_cull_face = false
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editor_only = false
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omni_range = 10.0
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omni_attenuation = 2.54912
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omni_shadow_mode = 1
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omni_shadow_detail = 1
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[node name="MeshInstance" type="MeshInstance" parent="."]
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layers = 1
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material_override = null
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cast_shadow = 1
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extra_cull_margin = 0.0
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use_in_baked_light = false
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lod_min_distance = 0.0
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lod_min_hysteresis = 0.0
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lod_max_distance = 0.0
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lod_max_hysteresis = 0.0
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mesh = SubResource( 3 )
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skeleton = NodePath("..")
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material/0 = null
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@ -1,5 +1,7 @@
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extends KinematicBody
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const BoxPhysics = preload("res://box_physics.gd")
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export var speed = 5.0
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export var gravity = 9.8
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export var jump_force = 5.0
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@ -43,13 +45,19 @@ func _fixed_process(delta):
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_velocity.z = motor.z
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_velocity.y -= gravity * delta
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if _grounded and Input.is_key_pressed(KEY_SPACE):
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#if _grounded and Input.is_key_pressed(KEY_SPACE):
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if Input.is_key_pressed(KEY_SPACE):
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_velocity.y = jump_force
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_grounded = false
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#_grounded = false
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var motion = _velocity * delta
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var rem = move(motion)
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motion = move_with_box_physics(motion)
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assert(delta > 0)
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_velocity = motion / delta
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#var rem = move(motion)
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# TODO Fix it, obsolete code
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# if is_colliding():
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@ -64,3 +72,60 @@ func _fixed_process(delta):
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# else:
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# _grounded = false
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#get_node("debug").set_text("Grounded=" + str(_grounded))
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# TODO There is room for optimization, but I'll leave it like this for now, it doesn't cause any lag
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func move_with_box_physics(motion):
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var debug3d = get_node("../Debug3D")
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var pos = get_translation()
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var box = BoxPhysics.box_from_center_extents(pos, Vector3(0.4, 0.9, 0.4))
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var expanded_box = BoxPhysics.expand_with_vector(box, motion)
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debug3d.draw_wire_box(expanded_box, Color(0,1,0,1))
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var potential_boxes = []
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# Collect collisions with the terrain
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if has_node(terrain):
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var voxel_terrain = get_node(terrain)
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var voxels = voxel_terrain.get_storage()
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var min_x = int(floor(expanded_box.position.x))
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var min_y = int(floor(expanded_box.position.y))
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var min_z = int(floor(expanded_box.position.z))
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var max_x = int(ceil(expanded_box.end.x))
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var max_y = int(ceil(expanded_box.end.y))
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var max_z = int(ceil(expanded_box.end.z))
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var x = min_x
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var y = min_y
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var z = min_z
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while z < max_z:
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while y < max_y:
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while x < max_x:
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var voxel_type = voxels.get_voxel(x,y,z, 0)
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if voxel_type != 0:
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var voxel_box = Rect3(Vector3(x,y,z), Vector3(1,1,1))
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potential_boxes.append(voxel_box)
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debug3d.draw_wire_box(voxel_box)
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x += 1
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x = min_x
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y += 1
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y = min_y
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z += 1
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motion = BoxPhysics.get_motion(box, motion, potential_boxes)
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move(motion)
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return motion
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@ -0,0 +1,109 @@
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extends MeshInstance
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var _boxes = []
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var _colors = []
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var _mesh = null
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# Who said "use ImmediateGeometry" node?
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func draw_wire_box(box, color=Color(1,1,1,1)):
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_boxes.append(box)
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_colors.append(color)
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func _fixed_process(delta):
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if _mesh == null:
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_mesh = ArrayMesh.new()
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mesh = _mesh
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if _mesh.get_surface_count() != 0:
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_mesh.surface_remove(0)
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var positions = PoolVector3Array()
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var colors = PoolColorArray()
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var indices = PoolIntArray()
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for i in range(0, _boxes.size()):
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var box = _boxes[i]
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var color = _colors[i]
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var vi = positions.size()
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var pos = box.position
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var end = box.end
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var x0 = pos.x
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var y0 = pos.y
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var z0 = pos.z
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var x1 = end.x
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var y1 = end.y
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var z1 = end.z
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positions.append_array([
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Vector3(x0, y0, z0),
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Vector3(x1, y0, z0),
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Vector3(x1, y0, z1),
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Vector3(x0, y0, z1),
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Vector3(x0, y1, z0),
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Vector3(x1, y1, z0),
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Vector3(x1, y1, z1),
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Vector3(x0, y1, z1)
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])
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colors.append_array([
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color,
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color,
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color,
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color,
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color,
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color,
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color,
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color
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])
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indices.append_array([
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indices.append(vi),
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indices.append(vi+1),
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indices.append(vi+1),
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indices.append(vi+2),
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indices.append(vi+2),
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indices.append(vi+3),
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indices.append(vi+3),
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indices.append(vi),
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indices.append(vi+4),
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indices.append(vi+5),
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indices.append(vi+5),
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indices.append(vi+6),
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indices.append(vi+6),
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indices.append(vi+7),
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indices.append(vi+7),
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indices.append(vi+4),
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indices.append(vi),
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indices.append(vi+4),
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indices.append(vi+1),
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indices.append(vi+5),
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indices.append(vi+2),
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indices.append(vi+6),
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indices.append(vi+3),
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indices.append(vi+7)
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])
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if positions.size() != 0:
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var arrays = []
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# TODO Use ArrayMesh.ARRAY_MAX
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arrays.resize(9)
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arrays[ArrayMesh.ARRAY_VERTEX] = positions
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arrays[ArrayMesh.ARRAY_COLOR] = colors
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arrays[ArrayMesh.ARRAY_INDEX] = indices
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_mesh.add_surface_from_arrays(Mesh.PRIMITIVE_LINES, arrays)
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_boxes.clear()
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_colors.clear()
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@ -1,4 +1,4 @@
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[gd_scene load_steps=16 format=2]
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[gd_scene load_steps=18 format=2]
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|
||||
[ext_resource path="res://terrain_material.tres" type="Material" id=1]
|
||||
[ext_resource path="res://terrain_marerial_transparent.tres" type="Material" id=2]
|
||||
|
|
@ -7,6 +7,7 @@
|
|||
[ext_resource path="res://character_avatar.tscn" type="PackedScene" id=5]
|
||||
[ext_resource path="res://axes.tscn" type="PackedScene" id=6]
|
||||
[ext_resource path="res://profiling_gui.gd" type="Script" id=7]
|
||||
[ext_resource path="res://debug3d.gd" type="Script" id=8]
|
||||
|
||||
[sub_resource type="ProceduralSky" id=1]
|
||||
|
||||
|
|
@ -195,6 +196,52 @@ subdivide_width = 0
|
|||
subdivide_height = 0
|
||||
subdivide_depth = 0
|
||||
|
||||
[sub_resource type="SpatialMaterial" id=9]
|
||||
|
||||
flags_transparent = false
|
||||
flags_unshaded = true
|
||||
flags_vertex_lighting = false
|
||||
flags_on_top = false
|
||||
flags_use_point_size = false
|
||||
flags_fixed_size = false
|
||||
vertex_color_use_as_albedo = true
|
||||
vertex_color_is_srgb = false
|
||||
params_diffuse_mode = 0
|
||||
params_specular_mode = 0
|
||||
params_blend_mode = 0
|
||||
params_cull_mode = 0
|
||||
params_depth_draw_mode = 0
|
||||
params_line_width = 1.0
|
||||
params_point_size = 1.0
|
||||
params_billboard_mode = 0
|
||||
params_grow = false
|
||||
params_use_alpha_scissor = false
|
||||
albedo_color = Color( 1, 1, 1, 1 )
|
||||
metallic = 0.0
|
||||
metallic_specular = 0.5
|
||||
metallic_texture_channel = 0
|
||||
roughness = 0.0
|
||||
roughness_texture_channel = 0
|
||||
emission_enabled = false
|
||||
normal_enabled = false
|
||||
rim_enabled = false
|
||||
clearcoat_enabled = false
|
||||
anisotropy_enabled = false
|
||||
ao_enabled = false
|
||||
depth_enabled = false
|
||||
subsurf_scatter_enabled = false
|
||||
refraction_enabled = false
|
||||
detail_enabled = false
|
||||
uv1_scale = Vector3( 1, 1, 1 )
|
||||
uv1_offset = Vector3( 0, 0, 0 )
|
||||
uv1_triplanar = false
|
||||
uv1_triplanar_sharpness = 1.0
|
||||
uv2_scale = Vector3( 1, 1, 1 )
|
||||
uv2_offset = Vector3( 0, 0, 0 )
|
||||
uv2_triplanar = false
|
||||
uv2_triplanar_sharpness = 1.0
|
||||
_sections_unfolded = [ "Emission", "Flags", "Vertex Color" ]
|
||||
|
||||
[node name="Node" type="Node"]
|
||||
|
||||
[node name="WorldEnvironment" type="WorldEnvironment" parent="."]
|
||||
|
|
@ -205,7 +252,7 @@ environment = SubResource( 2 )
|
|||
|
||||
provider = SubResource( 3 )
|
||||
voxel_library = SubResource( 6 )
|
||||
view_distance = 64
|
||||
view_distance = 32
|
||||
viewer_path = NodePath("")
|
||||
generate_collisions = true
|
||||
material/0 = ExtResource( 1 )
|
||||
|
|
@ -221,11 +268,11 @@ _sections_unfolded = [ "material" ]
|
|||
|
||||
[node name="Grid" type="MeshInstance" parent="."]
|
||||
|
||||
visible = false
|
||||
layers = 1
|
||||
material_override = SubResource( 7 )
|
||||
cast_shadow = 1
|
||||
extra_cull_margin = 0.0
|
||||
visible_in_all_rooms = false
|
||||
use_in_baked_light = false
|
||||
lod_min_distance = 0.0
|
||||
lod_min_hysteresis = 0.0
|
||||
|
|
@ -251,6 +298,7 @@ shadow_color = Color( 0, 0, 0, 1 )
|
|||
shadow_bias = 0.1
|
||||
shadow_contact = 0.0
|
||||
shadow_max_distance = 100.0
|
||||
shadow_reverse_cull_face = false
|
||||
editor_only = false
|
||||
directional_shadow_mode = 2
|
||||
directional_shadow_split_1 = 0.1
|
||||
|
|
@ -262,17 +310,17 @@ _sections_unfolded = [ "Directional Shadow", "Light", "Shadow" ]
|
|||
|
||||
[node name="CharacterAvatar" parent="." instance=ExtResource( 5 )]
|
||||
|
||||
transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -75.9996, 22.9488, 0 )
|
||||
collision/safe_margin = 0.001
|
||||
speed = 4.0
|
||||
gravity = 0.0
|
||||
jump_force = 9.0
|
||||
transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 25, 17 )
|
||||
terrain = NodePath("../VoxelTerrain")
|
||||
|
||||
[node name="axes" parent="." instance=ExtResource( 6 )]
|
||||
|
||||
[node name="ProfilingInfo" type="Label" parent="."]
|
||||
|
||||
anchor_left = 0.0
|
||||
anchor_top = 0.0
|
||||
anchor_right = 0.0
|
||||
anchor_bottom = 0.0
|
||||
margin_top = 20.0
|
||||
margin_right = 104.0
|
||||
margin_bottom = 34.0
|
||||
|
|
@ -293,7 +341,6 @@ layers = 1
|
|||
material_override = null
|
||||
cast_shadow = 1
|
||||
extra_cull_margin = 0.0
|
||||
visible_in_all_rooms = false
|
||||
use_in_baked_light = false
|
||||
lod_min_distance = 0.0
|
||||
lod_min_hysteresis = 0.0
|
||||
|
|
@ -304,4 +351,20 @@ skeleton = NodePath("..")
|
|||
material/0 = ExtResource( 1 )
|
||||
_sections_unfolded = [ "material" ]
|
||||
|
||||
[node name="Debug3D" type="MeshInstance" parent="."]
|
||||
|
||||
layers = 1
|
||||
material_override = SubResource( 9 )
|
||||
cast_shadow = 1
|
||||
extra_cull_margin = 0.0
|
||||
use_in_baked_light = false
|
||||
lod_min_distance = 0.0
|
||||
lod_min_hysteresis = 0.0
|
||||
lod_max_distance = 0.0
|
||||
lod_max_hysteresis = 0.0
|
||||
mesh = null
|
||||
skeleton = NodePath("..")
|
||||
script = ExtResource( 8 )
|
||||
_sections_unfolded = [ "Geometry" ]
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -5,12 +5,15 @@ export var sensitivity = 0.4
|
|||
export var min_angle = -90
|
||||
export var max_angle = 90
|
||||
export var capture_mouse = true
|
||||
export var distance = 5.0
|
||||
|
||||
var _yaw = 0
|
||||
var _pitch = 0
|
||||
var _offset = Vector3()
|
||||
|
||||
|
||||
func _ready():
|
||||
_offset = get_translation()
|
||||
if capture_mouse:
|
||||
Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
|
||||
|
||||
|
|
@ -21,6 +24,14 @@ func _input(event):
|
|||
if capture_mouse:
|
||||
# Capture the mouse
|
||||
Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
|
||||
|
||||
if event.button_index == BUTTON_WHEEL_UP:
|
||||
distance = max(distance-1, 0)
|
||||
update_rotations()
|
||||
|
||||
elif event.button_index == BUTTON_WHEEL_DOWN:
|
||||
distance = max(distance+1, 0)
|
||||
update_rotations()
|
||||
|
||||
elif event is InputEventMouseMotion:
|
||||
if Input.get_mouse_mode() == Input.MOUSE_MODE_CAPTURED || not capture_mouse:
|
||||
|
|
@ -39,8 +50,7 @@ func _input(event):
|
|||
_pitch = min_angle+e
|
||||
|
||||
# Apply rotations
|
||||
set_rotation(Vector3(0, deg2rad(_yaw), 0))
|
||||
rotate(get_transform().basis.x.normalized(), -deg2rad(_pitch))
|
||||
update_rotations()
|
||||
|
||||
elif event is InputEventKey:
|
||||
if event.pressed:
|
||||
|
|
@ -54,5 +64,10 @@ func _input(event):
|
|||
print("Position: ", pos, ", Forward: ", fw)
|
||||
|
||||
|
||||
func update_rotations():
|
||||
set_translation(Vector3())
|
||||
set_rotation(Vector3(0, deg2rad(_yaw), 0))
|
||||
rotate(get_transform().basis.x.normalized(), -deg2rad(_pitch))
|
||||
set_translation(get_transform().basis.z * distance + _offset)
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -1,14 +1,26 @@
|
|||
; Engine configuration file.
|
||||
; It's best edited using the editor UI and not directly,
|
||||
; since the parameters that go here are not all obvious.
|
||||
;
|
||||
; Format:
|
||||
; [section] ; section goes between []
|
||||
; param=value ; assign values to parameters
|
||||
|
||||
config_version=3
|
||||
|
||||
[application]
|
||||
|
||||
run/main_scene="res://main.tscn"
|
||||
name="Voxel Game"
|
||||
main_scene="res://main.tscn"
|
||||
icon="res://icon.png"
|
||||
|
||||
[input]
|
||||
|
||||
action1=[ InputEvent(MBUTTON,1) ]
|
||||
action2=[ InputEvent(MBUTTON,2) ]
|
||||
action1=[ Object(InputEventMouseButton,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"button_mask":0,"position":Vector2( 0, 0 ),"global_position":Vector2( 0, 0 ),"factor":1.0,"button_index":1,"pressed":false,"doubleclick":false,"script":null)
|
||||
]
|
||||
action2=[ Object(InputEventMouseButton,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"button_mask":0,"position":Vector2( 0, 0 ),"global_position":Vector2( 0, 0 ),"factor":1.0,"button_index":2,"pressed":false,"doubleclick":false,"script":null)
|
||||
]
|
||||
|
||||
[layer_names]
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue