90 lines
3.0 KiB
Python
90 lines
3.0 KiB
Python
import direct
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import direct.showbase
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import direct.showbase.ShowBaseGlobal
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import panda3d.core as p3d
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from direct.showbase.ShowBase import ShowBase
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from panda3d.core import NodePath
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class GameObject(NodePath):
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def __init__(self, model: NodePath):
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self = model
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self.gameobject = self
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self.self_active = self.is_hidden()
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def set_active(self, active: bool):
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if active:self.show()
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else:self.hide()
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@classmethod
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def create_panel(self) -> NodePath:
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base = direct.showbase.ShowBaseGlobal.base
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if not base or not base.render:
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raise Exception("base or base.render is None")
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from panda3d.core import CardMaker
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cm = CardMaker("ground")
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cm.set_frame(-10, 10, -10, 10) # (left, right, bottom, top)
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plane_np = base.render.attach_new_node(cm.generate())
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plane_np.set_hpr(0, -90, 0) # 躺平（默认是 XY 平面，朝 +Z）
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plane_np.setTwoSided(True)
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mat = p3d.Material('unlit')
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plane_np.set_material(mat)
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return plane_np
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@classmethod
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def set_model_auto_scale(self, model: NodePath,debug_info = False):
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base = direct.showbase.ShowBaseGlobal.base
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if not base or not base.render:
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raise Exception("base or base.render is None")
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if not model or model.is_empty():
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return
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bmin, bmax = model.get_tight_bounds(base.render)
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if bmin is None or bmax is None:
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return
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size = bmax - bmin
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max_size = max(size.x, size.y, size.z)
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if max_size <= 0:
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return
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# 目标：让最大边缩放到略小于 10，比如 9.9
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target_max = 3
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scale_factor = target_max / max_size
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model.set_scale(scale_factor)
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if debug_info:
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print(f"自动缩放：原最大尺寸={max_size:.3f} → 缩放因子={scale_factor:.6f}")
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@classmethod
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def get_node_type(self,np: NodePath) -> str:
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node = np.node()
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if isinstance(node, p3d.GeomNode):
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return "mesh(GeomNode)"
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if isinstance(node, p3d.CollisionNode):
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return "collision(CollisionNode)"
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if isinstance(node, p3d.Camera):
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return "camera"
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if isinstance(node, p3d.Light):
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return "light"
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if isinstance(node, p3d.TextNode):
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return "text"
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# 不同节点可能是模型根、LOD根等，但核心是：是否包含 Geom/Collision
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if not np.find("**/+GeomNode").isEmpty():
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return "empty*"
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if not np.find("**/+CollisionNode").isEmpty():
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return "collision_parent*"
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return "empty"
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@classmethod
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def get_child_name(self,node:NodePath):
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if not node or node.isEmpty() or node.getNumChildren() == 0:return
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for n in node.getChildren():
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print(f"{n.getName()} -> {GameObject.get_node_type(n)}")
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GameObject.get_child_name(n)
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return f"empty/transform({node.getType().getName()})" |