420: Combine speed and duration logic for fade lighting
This commit is contained in:
parent
714464993e
commit
ab4a825385
|
@ -13,6 +13,7 @@
|
|||
/// Fire flicker, light flash, strobe flash, lightning flash, glow, and fade.
|
||||
|
||||
#include "doomdef.h"
|
||||
#include "doomstat.h"
|
||||
#include "p_local.h"
|
||||
#include "r_state.h"
|
||||
#include "z_zone.h"
|
||||
|
@ -327,7 +328,8 @@ glow_t *P_SpawnAdjustableGlowingLight(sector_t *minsector, sector_t *maxsector,
|
|||
*
|
||||
* \param sector Target sector
|
||||
* \param destvalue The final light value in these sectors.
|
||||
* \param speed Speed of the fade; the change to the ligh
|
||||
* \param speed If tic-based: total duration of effect.
|
||||
* If speed-based: Speed of the fade; the change to the ligh
|
||||
* level in each sector per tic.
|
||||
* \param ticbased Use a specific duration for the fade, defined by speed
|
||||
* \sa T_LightFade
|
||||
|
@ -357,13 +359,13 @@ void P_FadeLightBySector(sector_t *sector, INT32 destvalue, INT32 speed, boolean
|
|||
if (ticbased)
|
||||
{
|
||||
ll->ticbased = true;
|
||||
ll->timer = ll->speed = abs(speed); // use ll->speed for total duration
|
||||
ll->timer = ll->duration = abs(speed); // speed means duration
|
||||
}
|
||||
else
|
||||
{
|
||||
ll->ticbased = false;
|
||||
ll->timer = -1;
|
||||
ll->speed = abs(speed);
|
||||
ll->timer = abs(ll->destlevel - ll->sourcelevel);
|
||||
ll->duration = abs(speed); // ll->duration is used as speed
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -382,49 +384,20 @@ void P_FadeLight(INT16 tag, INT32 destvalue, INT32 speed, boolean ticbased)
|
|||
*/
|
||||
void T_LightFade(lightlevel_t *ll)
|
||||
{
|
||||
if (ll->ticbased)
|
||||
if ((ll->ticbased && --ll->timer <= 0)
|
||||
|| (!ll->ticbased && (ll->timer -= ll->duration) <= 0))
|
||||
{
|
||||
if (--ll->timer <= 0)
|
||||
{
|
||||
ll->sector->lightlevel = ll->destlevel; // set to dest lightlevel
|
||||
P_RemoveLighting(ll->sector); // clear lightingdata, remove thinker
|
||||
}
|
||||
else
|
||||
{
|
||||
INT16 delta = abs(ll->destlevel - ll->sourcelevel);
|
||||
fixed_t factor = min(FixedDiv(ll->speed - ll->timer, ll->speed), 1*FRACUNIT);
|
||||
if (ll->destlevel < ll->sourcelevel)
|
||||
ll->sector->lightlevel = max(min(ll->sector->lightlevel, ll->sourcelevel - (INT16)FixedMul(delta, factor)), ll->destlevel);
|
||||
else if (ll->destlevel > ll->sourcelevel)
|
||||
ll->sector->lightlevel = min(max(ll->sector->lightlevel, ll->sourcelevel + (INT16)FixedMul(delta, factor)), ll->destlevel);
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
if (ll->sector->lightlevel < ll->destlevel)
|
||||
{
|
||||
// increase the lightlevel
|
||||
if (ll->sector->lightlevel + ll->speed >= ll->destlevel)
|
||||
{
|
||||
// stop changing light level
|
||||
ll->sector->lightlevel = ll->destlevel; // set to dest lightlevel
|
||||
|
||||
P_RemoveLighting(ll->sector); // clear lightingdata, remove thinker
|
||||
}
|
||||
else
|
||||
ll->sector->lightlevel += ll->speed; // move lightlevel
|
||||
ll->sector->lightlevel = ll->destlevel; // set to dest lightlevel
|
||||
P_RemoveLighting(ll->sector); // clear lightingdata, remove thinker
|
||||
}
|
||||
else
|
||||
{
|
||||
// decrease lightlevel
|
||||
if (ll->sector->lightlevel - ll->speed <= ll->destlevel)
|
||||
{
|
||||
// stop changing light level
|
||||
ll->sector->lightlevel = ll->destlevel; // set to dest lightlevel
|
||||
|
||||
P_RemoveLighting(ll->sector); // clear lightingdata, remove thinker
|
||||
}
|
||||
else
|
||||
ll->sector->lightlevel -= ll->speed; // move lightlevel
|
||||
INT16 delta = abs(ll->destlevel - ll->sourcelevel);
|
||||
INT32 duration = ll->ticbased ? ll->duration : delta; // speed-based: timer's initial value is equal to delta
|
||||
fixed_t factor = min(FixedDiv(duration - ll->timer, duration), 1*FRACUNIT);
|
||||
if (ll->destlevel < ll->sourcelevel)
|
||||
ll->sector->lightlevel = max(min(ll->sector->lightlevel, ll->sourcelevel - (INT16)FixedMul(delta, factor)), ll->destlevel);
|
||||
else if (ll->destlevel > ll->sourcelevel)
|
||||
ll->sector->lightlevel = min(max(ll->sector->lightlevel, ll->sourcelevel + (INT16)FixedMul(delta, factor)), ll->destlevel);
|
||||
}
|
||||
}
|
||||
|
|
|
@ -1561,8 +1561,8 @@ static void SaveLightlevelThinker(const thinker_t *th, const UINT8 type)
|
|||
WRITEUINT32(save_p, SaveSector(ht->sector));
|
||||
WRITEINT16(save_p, ht->sourcelevel);
|
||||
WRITEINT16(save_p, ht->destlevel);
|
||||
WRITEINT16(save_p, ht->speed);
|
||||
WRITEUINT8(save_p, (UINT8)ht->ticbased);
|
||||
WRITEINT16(save_p, ht->duration);
|
||||
WRITEINT32(save_p, ht->timer);
|
||||
}
|
||||
|
||||
|
@ -2537,8 +2537,8 @@ static inline void LoadLightlevelThinker(actionf_p1 thinker)
|
|||
ht->sector = LoadSector(READUINT32(save_p));
|
||||
ht->sourcelevel = READINT16(save_p);
|
||||
ht->destlevel = READINT16(save_p);
|
||||
ht->speed = READINT16(save_p);
|
||||
ht->ticbased = (boolean)READUINT8(save_p);
|
||||
ht->duration = READINT16(save_p);
|
||||
ht->timer = READINT32(save_p);
|
||||
if (ht->sector)
|
||||
ht->sector->lightingdata = ht;
|
||||
|
|
|
@ -138,11 +138,11 @@ typedef struct
|
|||
sector_t *sector; ///< Sector where action is taking place.
|
||||
INT16 sourcelevel; ///< Light level we're fading from.
|
||||
INT16 destlevel; ///< Light level we're fading to.
|
||||
INT16 speed; ///< Speed at which to change light level. OR: Tic-based duration
|
||||
|
||||
// Tic-based behavior
|
||||
boolean ticbased; ///< Tic-based logic
|
||||
INT32 timer; ///< Tic-based timer
|
||||
INT16 duration; ///< If tic-based: duration of effect. If speed-based: amount to increment
|
||||
INT32 timer; ///< Internal timer
|
||||
} lightlevel_t;
|
||||
|
||||
#define GLOWSPEED 8
|
||||
|
|
Loading…
Reference in New Issue