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50 lines
1.5 KiB
50 lines
1.5 KiB
//
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// Basic geometric things...
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//
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// Georg Hopp <georg@steffers.org>
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//
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// Copyright © 2019 Georg Hopp
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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use std::fmt::Debug;
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use std::ops::{Add, Div, Mul, Neg, Sub};
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use crate::math::transform::{TMatrix, Transformable};
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use crate::math::trigonometry::Trig;
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use crate::math::vector::Vector;
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pub struct DirectLight<T>
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where T: Add + Sub + Neg + Mul + Div + Debug + Copy + Trig + From<i32> {
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direction: Vector<T>,
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}
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impl<T> DirectLight<T>
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where T: Add<Output = T> + Sub<Output = T> + Neg<Output = T>
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+ Mul<Output = T> + Div<Output = T>
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+ Debug + Copy + Trig + From<i32> {
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pub fn new(v :Vector<T>) -> Self {
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DirectLight{ direction: v }
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}
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pub fn transform(&self, m :&TMatrix<T>) -> Self {
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let DirectLight{ direction: v } = self;
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DirectLight { direction: v.transform(m) }
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}
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pub fn dir(&self) -> Vector<T> {
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self.direction
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}
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}
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