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Merge branch 'quake-fix' into 'next'

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Implement epicenter and radius support for quakes.

See merge request STJr/SRB2!1797
This commit is contained in:
Krabs 2023-11-14 04:22:45 +00:00
commit e327b5fdf2
2 changed files with 25 additions and 9 deletions
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9
src/p_tick.c
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@ -843,16 +843,7 @@ void P_Ticker(boolean run)
countdown2--;
if (quake.time)
{
fixed_t ir = quake.intensity>>1;
/// \todo Calculate distance from epicenter if set and modulate the intensity accordingly based on radius.
quake.x = M_RandomRange(-ir,ir);
quake.y = M_RandomRange(-ir,ir);
quake.z = M_RandomRange(-ir,ir);
--quake.time;
}
else
quake.x = quake.y = quake.z = 0;
if (metalplayback)
G_ReadMetalTic(metalplayback);

25
src/r_main.c
View file

@ -1085,6 +1085,7 @@ void R_SetupFrame(player_t *player)
{
camera_t *thiscam;
boolean chasecam = R_ViewpointHasChasecam(player);
boolean ispaused = paused || P_AutoPause();
if (splitscreen && player == &players[secondarydisplayplayer] && player != &players[consoleplayer])
thiscam = &camera2;
@ -1135,6 +1136,30 @@ void R_SetupFrame(player_t *player)
}
}
}
if (quake.time && !ispaused)
{
fixed_t ir = quake.intensity>>1;
if (quake.epicenter) {
// Calculate 3D distance from epicenter, using the camera.
fixed_t xydist = R_PointToDist2(thiscam->x, thiscam->y, quake.epicenter->x, quake.epicenter->y);
fixed_t dist = R_PointToDist2(0, thiscam->z, xydist, quake.epicenter->z);
// More effect closer to epicenter, outside of radius = no effect
if (!quake.radius || dist > quake.radius)
ir = 0;
else
ir = FixedMul(ir, FRACUNIT - FixedDiv(dist, quake.radius));
}
quake.x = M_RandomRange(-ir,ir);
quake.y = M_RandomRange(-ir,ir);
quake.z = M_RandomRange(-ir,ir);
}
else if (!ispaused)
quake.x = quake.y = quake.z = 0;
newview->z += quake.z;
newview->player = player;