ai.dragonfly.mesh.shape.package.scala Maven / Gradle / Ivy
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/*
* Copyright 2023 dragonfly.ai
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ai.dragonfly.mesh
import slash.vector.*
import narr.*
package object shape {
def addQuad(a: Int, b: Int, c: Int, d: Int, triangles: NArray[Triangle], t: Int): Int = if (t < triangles.length) {
triangles(t) = Triangle(a, b, c)
triangles(t + 1) = Triangle(a, d, b)
t + 2
} else t
inline def validateVertex(v:Int, vertices:NArray[Vec[3]]): Boolean = vertices.length > v
inline def addQuad(a: Int, b: Int, c: Int, d: Int, triangles: NArray[Triangle], t: Int, vertices:NArray[Vec[3]]): Int = {
if (
t < triangles.length &&
validateVertex(a, vertices) &&
validateVertex(b, vertices) &&
validateVertex(c, vertices)
) {
triangles(t) = Triangle(a, b, c)
t + 1 + (if (validateVertex(d, vertices)) {
triangles(t + 1) = Triangle(a, d, b)
1
} else 0)
} else t
}
}