119 lines
2.9 KiB
GDScript
119 lines
2.9 KiB
GDScript
@tool
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extends Node
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@export_range(0.1, 10, 0.01) var height: float = 2.0
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@export_range(0.1, 10, 0.01) var width: float = 1.0
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## Player camera's NEAR clip distance
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@export_range(0, 0.2, 0.001) var indent: float = 0.1
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@export var portal: Portal
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func _add_inspector_buttons() -> Array:
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var buttons = []
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buttons.push_back({
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"name": "Generate Portal Mesh",
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"pressed": generate_portal_mesh
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})
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buttons.push_back({
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"name": "Remove Mesh",
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"pressed": func(): portal.mesh = null
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})
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return buttons
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func _get_configuration_warnings() -> PackedStringArray:
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var warnings = []
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if portal == null:
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warnings.append("Assign a portal to generate the mesh for")
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return warnings
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func generate_portal_mesh() -> void:
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if portal == null:
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push_error("No portal")
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return
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if portal.mesh != null:
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push_warning("The portal %s already has a mesh!" % portal.name)
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return
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var mesh = ArrayMesh.new()
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print("[PMM] Creating mesh")
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var surface_array = []
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surface_array.resize(Mesh.ARRAY_MAX)
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var verts = PackedVector3Array()
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var uvs = PackedVector2Array()
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var normals = PackedVector3Array()
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var indices = PackedInt32Array()
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# Just to save some chars
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var w = width / 2
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var h = height / 2
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var i = indent
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# Outside rect
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var TOP_LEFT = Vector3(-w, h, 0)
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var TOP_RIGHT = Vector3(w, h, 0)
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var BOTTOM_LEFT = Vector3(-w, -h, 0)
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var BOTTOM_RIGHT = Vector3(w, -h, 0)
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# Inside rect, indented
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var INDENT_TL = TOP_LEFT + Vector3(indent, -indent, -indent)
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var INDENT_TR = TOP_RIGHT + Vector3(-indent, -indent, -indent)
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var INDENT_BL = BOTTOM_LEFT + Vector3(indent, indent, -indent)
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var INDENT_BR = BOTTOM_RIGHT + Vector3(-indent, indent, -indent)
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verts.append_array([
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TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, BOTTOM_RIGHT,
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INDENT_TL, INDENT_TR, INDENT_BL, INDENT_BR
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])
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uvs.append_array([
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Vector2(0, 0), Vector2(1, 0), Vector2(0, 1), Vector2(1, 1), # Outside UVs
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Vector2(i, i), Vector2(1-i, i), Vector2(i, 1-i), Vector2(1-i, 1-i) # Indented UVs
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])
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# We are going for a flat-surface look here. Portals should be unshaded anyways.
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normals.append_array([
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Vector3.BACK, Vector3.BACK, Vector3.BACK, Vector3.BACK,
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Vector3.BACK, Vector3.BACK, Vector3.BACK, Vector3.BACK
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])
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# 0 ----------- 1
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# | \ / |
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# | 4-------5 |
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# | | | |
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# | | | |
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# | 6-------7 |
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# | / \ |
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# 2 ----------- 3
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# Triangles are clockwise!
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indices.append_array([
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0, 1, 4,
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4, 1, 5, # Top section done
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1, 3, 5,
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5, 3, 7, # right section done
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3, 2, 7,
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7, 2, 6, # bottom section done
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2, 0, 6,
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6, 0, 4, # left section done
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4, 5, 6,
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6, 5, 7 # middle done
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])
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surface_array[Mesh.ARRAY_VERTEX] = verts
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surface_array[Mesh.ARRAY_TEX_UV] = uvs
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surface_array[Mesh.ARRAY_NORMAL] = normals
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surface_array[Mesh.ARRAY_INDEX] = indices
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# No blendshapes, lods, or compression used.
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mesh.add_surface_from_arrays(Mesh.PRIMITIVE_TRIANGLES, surface_array)
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portal.mesh = mesh
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print("[PMM] Mesh assigned")
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