1.优化碰撞面板
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@ -309,51 +309,81 @@ class CollisionManager:
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CollisionPlane, CollisionPolygon, Plane, Vec3
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)
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bounds = model.getBounds()
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if bounds.isEmpty():
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# 获取考虑变换后的实际尺寸和中心
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transformed_info = self._getTransformedModelInfo(model)
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if not transformed_info:
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# 默认小球体
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return CollisionSphere(Point3(0, 0, 0), 1.0)
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center = bounds.getCenter()
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radius = bounds.getRadius()
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center = transformed_info['center']
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radius = transformed_info['radius']
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actual_size = transformed_info['size']
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scale_factor = transformed_info['scale_factor']
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# 自动选择最适合的形状
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if shape_type == 'auto':
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shape_type = self._determineOptimalShape(model, bounds)
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shape_type = self._determineOptimalShape(model, transformed_info)
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if shape_type == 'sphere':
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return CollisionSphere(center, kwargs.get('radius', radius))
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# 优化球形碰撞体
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sphere_radius = kwargs.get('radius', radius)
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# 支持位置偏移
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pos_offset = kwargs.get('position_offset', Vec3(0, 0, 0))
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sphere_center = Point3(center.x + pos_offset.x, center.y + pos_offset.y, center.z + pos_offset.z)
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return CollisionSphere(sphere_center, sphere_radius)
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elif shape_type == 'box':
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# 创建自定义尺寸的包围盒
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width = kwargs.get('width', bounds.getMax().x - bounds.getMin().x)
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length = kwargs.get('length', bounds.getMax().y - bounds.getMin().y)
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height = kwargs.get('height', bounds.getMax().z - bounds.getMin().z)
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# 优化盒型碰撞体 - 更精确的尺寸和位置控制（考虑缩放）
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# 获取自定义尺寸，如果没有提供则使用变换后的实际尺寸
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width = kwargs.get('width', actual_size.x)
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length = kwargs.get('length', actual_size.y)
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height = kwargs.get('height', actual_size.z)
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# 计算盒子的最小和最大点
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# 支持位置偏移
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pos_offset = kwargs.get('position_offset', Vec3(0, 0, 0))
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box_center = Point3(center.x + pos_offset.x, center.y + pos_offset.y, center.z + pos_offset.z)
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# 计算盒子的最小和最大点（基于偏移后的中心）
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half_width = width / 2
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half_length = length / 2
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half_height = height / 2
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min_point = Point3(center.x - half_width, center.y - half_length, center.z - half_height)
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max_point = Point3(center.x + half_width, center.y + half_length, center.z + half_height)
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min_point = Point3(box_center.x - half_width, box_center.y - half_length, box_center.z - half_height)
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max_point = Point3(box_center.x + half_width, box_center.y + half_length, box_center.z + half_height)
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return CollisionBox(min_point, max_point)
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elif shape_type == 'capsule':
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# 创建自定义参数的胶囊体
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custom_height = kwargs.get('height', (bounds.getMax().z - bounds.getMin().z))
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custom_radius = kwargs.get('radius', min(bounds.getRadius() * 0.5, custom_height * 0.3))
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# 优化胶囊体碰撞 - 更合理的比例和位置控制（考虑缩放）
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# 使用变换后的实际高度，或自定义高度
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custom_height = kwargs.get('height', actual_size.z)
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# 计算胶囊体的两个端点
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point_a = Point3(center.x, center.y, center.z - custom_height/2 + custom_radius)
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point_b = Point3(center.x, center.y, center.z + custom_height/2 - custom_radius)
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# 更合理的半径计算：基于变换后模型宽度的平均值
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default_radius = min(actual_size.x, actual_size.y) / 2.5 # 稍微小于模型的宽度
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custom_radius = kwargs.get('radius', min(default_radius, custom_height * 0.4))
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# 支持位置偏移
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pos_offset = kwargs.get('position_offset', Vec3(0, 0, 0))
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capsule_center = Point3(center.x + pos_offset.x, center.y + pos_offset.y, center.z + pos_offset.z)
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# 计算胶囊体的两个端点（确保半径不会超出高度）
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effective_height = max(custom_height, custom_radius * 2.1) # 确保高度至少是半径的2倍多一点
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point_a = Point3(capsule_center.x, capsule_center.y, capsule_center.z - effective_height/2 + custom_radius)
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point_b = Point3(capsule_center.x, capsule_center.y, capsule_center.z + effective_height/2 - custom_radius)
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return CollisionCapsule(point_a, point_b, custom_radius)
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elif shape_type == 'plane':
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# 创建平面（适合地面、墙面）
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# 优化平面碰撞 - 支持位置偏移和更灵活的法向量
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normal = kwargs.get('normal', Vec3(0, 0, 1))
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point = kwargs.get('point', center)
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plane = Plane(normal, point)
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# 支持位置偏移
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pos_offset = kwargs.get('position_offset', Vec3(0, 0, 0))
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plane_point = kwargs.get('point', Point3(center.x + pos_offset.x, center.y + pos_offset.y, center.z + pos_offset.z))
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# 标准化法向量
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normal.normalize()
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plane = Plane(normal, plane_point)
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return CollisionPlane(plane)
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elif shape_type == 'polygon':
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@ -378,10 +408,10 @@ class CollisionManager:
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print("⚠️ 多边形至少需要3个顶点，回退到球体")
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return CollisionSphere(center, radius)
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def _determineOptimalShape(self, model, bounds):
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def _determineOptimalShape(self, model, transformed_info):
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"""根据模型特征自动确定最适合的碰撞体形状"""
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# 获取模型尺寸比例
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size = bounds.getMax() - bounds.getMin()
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# 获取变换后的模型尺寸比例
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size = transformed_info['size']
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max_dim = max(size.x, size.y, size.z)
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min_dim = min(size.x, size.y, size.z)
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@ -410,6 +440,87 @@ class CollisionManager:
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else: # 其他用包围盒
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return 'box'
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def _getTransformedModelInfo(self, model):
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"""获取考虑变换后的模型信息
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Args:
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model: 模型节点
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Returns:
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dict: 包含变换后的尺寸、中心、半径等信息
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"""
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try:
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# 获取原始包围盒
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bounds = model.getBounds()
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if bounds.isEmpty():
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return None
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# 获取模型的变换矩阵
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transform = model.getTransform()
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scale = model.getScale()
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# 计算缩放因子（取三轴缩放的平均值）
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scale_factor = (abs(scale.x) + abs(scale.y) + abs(scale.z)) / 3.0
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# 获取原始尺寸
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original_size = bounds.getMax() - bounds.getMin()
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# 应用缩放到尺寸
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actual_size = Vec3(
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original_size.x * abs(scale.x),
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original_size.y * abs(scale.y),
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original_size.z * abs(scale.z)
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)
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# 获取变换后的中心点（在世界坐标系中）
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original_center = bounds.getCenter()
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if hasattr(model, 'getPos'):
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# 模型在世界坐标系中的位置
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world_center = model.getPos(model.getParent() if model.getParent() else model)
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center = Point3(world_center.x, world_center.y, world_center.z)
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else:
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# 如果无法获取世界位置，使用原始中心
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center = original_center
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# 计算变换后的半径（考虑缩放）
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original_radius = bounds.getRadius()
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transformed_radius = original_radius * scale_factor
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# 调试信息
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print(f"🔍 模型 {model.getName()} 变换信息:")
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print(f" 原始尺寸: {original_size}")
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print(f" 缩放因子: {scale}")
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print(f" 变换后尺寸: {actual_size}")
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print(f" 变换后半径: {transformed_radius:.2f}")
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return {
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'center': center,
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'radius': transformed_radius,
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'size': actual_size,
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'scale_factor': scale_factor,
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'original_size': original_size,
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'scale': scale,
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'transform': transform
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}
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except Exception as e:
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print(f"⚠️ 获取模型变换信息失败: {e}")
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# 回退到原始包围盒
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bounds = model.getBounds()
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if bounds.isEmpty():
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return None
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original_size = bounds.getMax() - bounds.getMin()
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return {
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'center': bounds.getCenter(),
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'radius': bounds.getRadius(),
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'size': original_size,
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'scale_factor': 1.0,
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'original_size': original_size,
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'scale': Vec3(1, 1, 1),
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'transform': None
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}
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def createMouseRay(self, screen_x, screen_y, mask_types=['SELECTABLE']):
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"""创建鼠标射线"""
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# 组合掩码
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