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ComputeAxisSpeed function

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docentYT
2026-02-03 00:09:11 +01:00
parent c39decc733
commit af98ec6c89
1 changed files with 11 additions and 19 deletions
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30
Camera.cpp
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@@ -42,6 +42,15 @@ void TCamera::OnCursorMove(double x, double y) {
m_rotationoffsets += glm::dvec3 { y, x, 0.0 };
}
static double ComputeAxisSpeed(double param, double walkspeed, double maxspeed, double threshold) {
double absval = std::abs(param);
// 2/3rd of the stick range lerps walk speed, past that we lerp between max walk and run speed
double walk = walkspeed * std::min(absval / threshold, 1.0);
double run = (std::max(0.0, absval - threshold) / (1.0 - threshold)) * std::max(0.0, maxspeed - walkspeed);
return (param >= 0.0 ? 1.0 : -1.0) * (walk + run);
}
bool
TCamera::OnCommand( command_data const &Command ) {
@@ -78,26 +87,9 @@ TCamera::OnCommand( command_data const &Command ) {
1.0 );
// left-right
auto const movexparam { Command.param1 };
// 2/3rd of the stick range lerps walk speed, past that we lerp between max walk and run speed
auto const movex { walkspeed * std::min(std::abs(movexparam) * (1.0 / stickthreshold), 1.0)
+ ( std::max( 0.0, std::abs( movexparam ) - stickthreshold ) / (1.0 - stickthreshold) ) * std::max( 0.0, movespeed - walkspeed ) };
m_moverate.x = (
movexparam > 0.0 ? movex * speedmultiplier :
movexparam < 0.0 ? -movex * speedmultiplier :
0.0 );
m_moverate.x = ComputeAxisSpeed(Command.param1, walkspeed, movespeed, stickthreshold) * speedmultiplier;
// forward-back
double const movezparam { Command.param2 };
auto const movez { walkspeed * std::min(std::abs(movezparam) * (1.0 / stickthreshold), 1.0)
+ ( std::max( 0.0, std::abs( movezparam ) - stickthreshold ) / (1.0 - stickthreshold) ) * std::max( 0.0, movespeed - walkspeed ) };
// NOTE: z-axis is flipped given world coordinate system
m_moverate.z = (
movezparam > 0.0 ? -movez * speedmultiplier :
movezparam < 0.0 ? movez * speedmultiplier :
0.0 );
m_moverate.z = -ComputeAxisSpeed(Command.param2, walkspeed, movespeed, stickthreshold) * speedmultiplier;
break;
}