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-rw-r--r--src/interpolation.cpp19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/interpolation.cpp b/src/interpolation.cpp new file mode 100644 index 0000000..3c9bcf8 --- /dev/null +++ b/src/interpolation.cpp
@@ -0,0 +1,19 @@
1#include "interpolation.h"
2
3void Interpolation::start(int length, double amount) {
4 start_ = progress_;
5 dest_ = amount;
6 length_ = length;
7 thus_ = 0;
8}
9
10void Interpolation::tick(double dt) {
11 if (progress_ != dest_) {
12 thus_ += dt;
13 if (thus_ >= length_) {
14 thus_ = length_;
15 }
16
17 progress_ = (dest_ - start_) / length_ * thus_ + start_;
18 }
19}