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- PlayerAngle::applyinput(): Provide commentary on how numeric literals used in rotscrnang/look_ang/spin math came to be and place into an enum for clarity.

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This commit is contained in:
Mitch Richters 2021-11-06 10:26:29 +11:00
parent 8e8dfa9f9a
commit 1df2ba80ed
1 changed files with 37 additions and 7 deletions
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44
source/core/gameinput.cpp
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@ -345,34 +345,64 @@ void PlayerHorizon::applyinput(float const horz, ESyncBits* actions, double cons
//
//---------------------------------------------------------------------------
/*
// Rotate return speed.
Duke: (1 / 2) * 30 = 15;
// Look return speed.
Duke: (1 / 4) * 30 = 7.5;
// Rotating speed.
Duke: 24 * 30 = 720;
// Looking speed.
Duke: 152 * 30 = 4560;
// Spin standing speed.
Duke: 128 * 30 = 3840;
Blood: 128 * 30 = 3840;
// Looking speed.
Blood: 64 * 30 = 1920;
*/
enum
{
LOOKROTRETBASE = 15,
ROTATESPEED = 720,
LOOKINGSPEED = 4560,
SPINSTAND = 3840,
SPINCROUCH = 1920,
};
void PlayerAngle::applyinput(float const avel, ESyncBits* actions, double const scaleAdjust)
{
if (rotscrnang.asbam())
{
// return rotscrnang to 0
rotscrnang -= buildfang(scaleAdjust * rotscrnang.signedbuildf() * (15. / GameTicRate));
rotscrnang -= buildfang(scaleAdjust * rotscrnang.signedbuildf() * (double(LOOKROTRETBASE) / GameTicRate));
if (abs(rotscrnang.signedbam()) < (BAMUNIT >> 2)) rotscrnang = bamang(0);
}
if (look_ang.asbam())
{
// return look_ang to 0
look_ang -= buildfang(scaleAdjust * look_ang.signedbuildf() * (7.5 / GameTicRate));
look_ang -= buildfang(scaleAdjust * look_ang.signedbuildf() * ((+LOOKROTRETBASE * 0.5) / GameTicRate));
if (abs(look_ang.signedbam()) < (BAMUNIT >> 2)) look_ang = bamang(0);
}
if (*actions & SB_LOOK_LEFT)
{
// start looking left
look_ang -= buildfang(scaleAdjust * (4560. / GameTicRate));
rotscrnang += buildfang(scaleAdjust * (720. / GameTicRate));
look_ang -= buildfang(scaleAdjust * (double(LOOKINGSPEED) / GameTicRate));
rotscrnang += buildfang(scaleAdjust * (double(ROTATESPEED) / GameTicRate));
}
if (*actions & SB_LOOK_RIGHT)
{
// start looking right
look_ang += buildfang(scaleAdjust * (4560. / GameTicRate));
rotscrnang -= buildfang(scaleAdjust * (720. / GameTicRate));
look_ang += buildfang(scaleAdjust * (double(LOOKINGSPEED) / GameTicRate));
rotscrnang -= buildfang(scaleAdjust * (double(ROTATESPEED) / GameTicRate));
}
if (!movementlocked())
@ -397,7 +427,7 @@ void PlayerAngle::applyinput(float const avel, ESyncBits* actions, double const
if (spin < 0)
{
// return spin to 0
double add = scaleAdjust * ((!(*actions & SB_CROUCH) ? 3840. : 1920.) / GameTicRate);
double add = scaleAdjust * (double(!(*actions & SB_CROUCH) ? SPINSTAND : SPINCROUCH) / GameTicRate);
spin += add;
if (spin > 0)
{