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Implement epicenter and radius support for quakes.

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GoldenTails 2022-06-18 23:35:22 -05:00
parent af8bc3af7e
commit 701c1e26c4
1 changed files with 17 additions and 1 deletions
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18
src/p_tick.c
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@ -23,6 +23,7 @@
#include "lua_hook.h" #include "lua_hook.h"
#include "m_perfstats.h" #include "m_perfstats.h"
#include "i_system.h" // I_GetPreciseTime #include "i_system.h" // I_GetPreciseTime
#include "r_main.h"
// Object place // Object place
#include "m_cheat.h" #include "m_cheat.h"
@ -740,7 +741,22 @@ void P_Ticker(boolean run)
if (quake.time) if (quake.time)
{ {
fixed_t ir = quake.intensity>>1; fixed_t ir = quake.intensity>>1;
/// \todo Calculate distance from epicenter if set and modulate the intensity accordingly based on radius.
if (quake.epicenter) {
// Calculate 3D distance from epicenter, using camera.
// Uses only player 1 camera because only one quake variable exists.
fixed_t xydist = R_PointToDist2(camera.x, camera.y, quake.epicenter->x, quake.epicenter->y);
fixed_t dist = R_PointToDist2(0, camera.z, xydist, quake.epicenter->z);
CONS_Printf("%d\n", dist / FRACUNIT);
// 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.x = M_RandomRange(-ir,ir);
quake.y = M_RandomRange(-ir,ir); quake.y = M_RandomRange(-ir,ir);
quake.z = M_RandomRange(-ir,ir); quake.z = M_RandomRange(-ir,ir);