bert/research-project
Archived
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Implement some kind of animation.

Browse Source 
The animation is still all wrong, but it is there at least.
This commit is contained in:
Bert Peters
2018-02-13 15:41:01 +01:00
parent c033f08d04
commit 16665a588a
4 changed files with 16 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/ActivityAnimation.cpp
View File

@@ -16,11 +16,11 @@ static inline float correct_timescale(float original)
ActivityAnimation::ActivityAnimation(std::size_t count, const float *aPos, const float *bPos, const float xDist) :
bufferLength(3 * count),
startingPos(new float[bufferLength]),
delta(new float[bufferLength]),
offset(new float[count])
startingPos(bufferLength),
delta(bufferLength),
offset(bufferLength)
{
memcpy(startingPos.get(), aPos, sizeof(aPos[0]) * bufferLength);
memcpy(startingPos.data(), aPos, sizeof(aPos[0]) * bufferLength);
for (auto i : Range(bufferLength)) {
delta[i] = bPos[i] - aPos[i];
}
@@ -38,12 +38,12 @@ void ActivityAnimation::draw(float timeScale) const
std::unique_ptr<float[]> vertexBuffer(new float[bufferLength]);
for (auto i : Range(bufferLength)) {
vertexBuffer[i] = startingPos[i] + correct_timescale(offset[i/3] + timeScale) * delta[i];
vertexBuffer[i] = startingPos[i] + timeScale * delta[i];
}
glColor3f(1, 1, 1);
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, vertexBuffer.get());
glDrawArrays(GL_POINTS, bufferLength / 3, bufferLength);
glDrawArrays(GL_POINTS, 0, bufferLength / 3);
glDisableClientState(GL_VERTEX_ARRAY);
}