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Gave the new flag-based system for sprite angles actual flag names instead of relying on magic numbers.

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Also, I did a wee smidgen of reorganisation.
This commit is contained in:
toasterbabe 2016-06-16 14:20:03 +01:00
parent f08e996e76
commit 41b35a923f
3 changed files with 52 additions and 43 deletions
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20
src/hardware/hw_main.c
View file

@ -5092,14 +5092,21 @@ static void HWR_ProjectSprite(mobj_t *thing)
I_Error("sprframes NULL for sprite %d\n", thing->sprite);
#endif
if (sprframe->rotate)
if (sprframe->rotate == SRF_SINGLE)
{
// use single rotation for all views
rot = 0; //Fab: for vis->patch below
lumpoff = sprframe->lumpid[0]; //Fab: see note above
flip = sprframe->flip; // Will only be 0x00 or 0xFF
}
else
{
// choose a different rotation based on player view
ang = R_PointToAngle (thing->x, thing->y) - thing->angle;
if ((ang < ANGLE_180) && (sprframe->rotate & 4)) // See from right
if ((ang < ANGLE_180) && (sprframe->rotate & SRF_RIGHT)) // See from right
rot = 6; // F7 slot
else if ((ang >= ANGLE_180) && (sprframe->rotate & 2)) // See from left
else if ((ang >= ANGLE_180) && (sprframe->rotate & SRF_LEFT)) // See from left
rot = 2; // F3 slot
else // Normal behaviour
rot = (ang+ANGLE_202h)>>29;
@ -5108,13 +5115,6 @@ static void HWR_ProjectSprite(mobj_t *thing)
lumpoff = sprframe->lumpid[rot];
flip = sprframe->flip & (1<<rot);
}
else
{
// use single rotation for all views
rot = 0; //Fab: for vis->patch below
lumpoff = sprframe->lumpid[0]; //Fab: see note above
flip = sprframe->flip; // Will only be 0x00 or 0xFF
}
if (thing->skin && ((skin_t *)thing->skin)->flags & SF_HIRES)
this_scale = this_scale * FIXED_TO_FLOAT(((skin_t *)thing->skin)->highresscale);

18
src/r_defs.h
View file

@ -729,11 +729,21 @@ typedef struct
#pragma pack()
#endif
typedef enum
{
SRF_SINGLE = 0, // 0-angle for all rotations
SRF_3D = 1, // Angles 1-8
SRF_LEFT = 2, // Left side has single patch
SRF_RIGHT = 4, // Right side has single patch
SRF_2D = 6, // SRF_LEFT|SRF_RIGHT
SRF_NONE = 0xff // Initial value
} spriterotateflags_t; // SRF's up!
//
// Sprites are patches with a special naming convention so they can be
// recognized by R_InitSprites.
// The base name is NNNNFx or NNNNFxFx, with x indicating the rotation,
// x = 0, 1-7.
// x = 0, 1-8, L/R
// The sprite and frame specified by a thing_t is range checked at run time.
// A sprite is a patch_t that is assumed to represent a three dimensional
// object and may have multiple rotations predrawn.
@ -745,13 +755,9 @@ typedef struct
//
typedef struct
{
// If false use 0 for any position.
// If L is present, (rotate & 2) == 2.
// If R is present, (rotate & 4) == 4.
// Otherwise, use 1.
// Note: as eight entries are available, we might as well insert the same
// name eight times.
UINT8 rotate;
UINT8 rotate; // see spriterotateflags_t above
// Lump to use for view angles 0-7.
lumpnum_t lumppat[8]; // lump number 16 : 16 wad : lump

57
src/r_things.c
View file

@ -109,12 +109,12 @@ static void R_InstallSpriteLump(UINT16 wad, // graphics patch
if (rotation == 0)
{
// the lump should be used for all rotations
if (sprtemp[frame].rotate == 0)
if (sprtemp[frame].rotate == SRF_SINGLE)
CONS_Debug(DBG_SETUP, "R_InitSprites: Sprite %s frame %c has multiple rot = 0 lump\n", spritename, cn);
else if (sprtemp[frame].rotate != 0xff) // Let's complain for both 1-8 and L/R rotations.
else if (sprtemp[frame].rotate != SRF_NONE) // Let's complain for both 1-8 and L/R rotations.
CONS_Debug(DBG_SETUP, "R_InitSprites: Sprite %s frame %c has rotations and a rot = 0 lump\n", spritename, cn);
sprtemp[frame].rotate = 0;
sprtemp[frame].rotate = SRF_SINGLE;
for (r = 0; r < 8; r++)
{
sprtemp[frame].lumppat[r] = lumppat;
@ -129,16 +129,20 @@ static void R_InstallSpriteLump(UINT16 wad, // graphics patch
UINT8 rightfactor = ((rotation == ROT_R) ? 4 : 0);
// the lump should be used for half of all rotations
if (sprtemp[frame].rotate == 0)
if (sprtemp[frame].rotate == SRF_SINGLE)
CONS_Debug(DBG_SETUP, "R_InitSprites: Sprite %s frame %c has L/R rotations and a rot = 0 lump\n", spritename, cn);
else if (sprtemp[frame].rotate == 1)
else if (sprtemp[frame].rotate == SRF_3D)
CONS_Debug(DBG_SETUP, "R_InitSprites: Sprite %s frame %c has both L/R and 1-8 rotations\n", spritename, cn);
// Let's not complain about multiple L/R rotations. It's not worth the effort.
if (sprtemp[frame].rotate == 0xff)
sprtemp[frame].rotate = 0;
if (sprtemp[frame].rotate == SRF_NONE)
sprtemp[frame].rotate = SRF_SINGLE;
sprtemp[frame].rotate |= ((rotation == ROT_R) ? SRF_RIGHT : SRF_LEFT);
if (sprtemp[frame].rotate == (SRF_3D|SRF_2D))
sprtemp[frame].rotate = SRF_2D; // SRF_3D|SRF_2D being enabled at the same time doesn't HURT in the current sprite angle implementation, but it DOES mean more to check in some of the helper functions. Let's not allow this scenario to happen.
sprtemp[frame].rotate |= ((rotation == ROT_R) ? 4 : 2);
for (r = 1; r < 4; r++) // Don't set for front/back frames
{
sprtemp[frame].lumppat[r + rightfactor] = lumppat;
@ -149,20 +153,20 @@ static void R_InstallSpriteLump(UINT16 wad, // graphics patch
}
// the lump is only used for one rotation
if (sprtemp[frame].rotate == 0)
if (sprtemp[frame].rotate == SRF_SINGLE)
CONS_Debug(DBG_SETUP, "R_InitSprites: Sprite %s frame %c has 1-8 rotations and a rot = 0 lump\n", spritename, cn);
else if (sprtemp[frame].rotate != 1)
else if ((sprtemp[frame].rotate != SRF_3D) && (sprtemp[frame].rotate != SRF_NONE))
CONS_Debug(DBG_SETUP, "R_InitSprites: Sprite %s frame %c has both L/R and 1-8 rotations\n", spritename, cn);
// make 0 based
rotation--;
if (rotation == 0 || rotation == 4) // Front or back...
sprtemp[frame].rotate = 1; // Prevent L and R changeover
sprtemp[frame].rotate = SRF_3D; // Prevent L and R changeover
else if (rotation > 3) // Right side
sprtemp[frame].rotate = (1 | (sprtemp[frame].rotate & 2)); // Continue allowing L frame changeover
sprtemp[frame].rotate = (SRF_3D | (sprtemp[frame].rotate & SRF_LEFT)); // Continue allowing L frame changeover
else // if (rotation <= 3) // Left side
sprtemp[frame].rotate = (1 | (sprtemp[frame].rotate & 4)); // Continue allowing R frame changeover
sprtemp[frame].rotate = (SRF_3D | (sprtemp[frame].rotate & SRF_RIGHT)); // Continue allowing R frame changeover
if (sprtemp[frame].lumppat[rotation] != LUMPERROR)
CONS_Debug(DBG_SETUP, "R_InitSprites: Sprite %s: %c%c has two lumps mapped to it\n", spritename, cn, '1'+rotation);
@ -308,17 +312,16 @@ static boolean R_AddSingleSpriteDef(const char *sprname, spritedef_t *spritedef,
{
switch (sprtemp[frame].rotate)
{
case 0xff:
case SRF_NONE:
// no rotations were found for that frame at all
I_Error("R_AddSingleSpriteDef: No patches found for %s frame %c", sprname, R_Frame2Char(frame));
break;
case 0:
case SRF_SINGLE:
// only the first rotation is needed
break;
case 6: // (rotate & (2|4)) == (2|4) - both Left and Right rotations
case 7:
case SRF_2D: // both Left and Right rotations
// we test to see whether the left and right slots are present
if ((sprtemp[frame].lumppat[2] == LUMPERROR) || (sprtemp[frame].lumppat[6] == LUMPERROR))
I_Error("R_AddSingleSpriteDef: Sprite %s frame %c is missing rotations",
@ -1167,14 +1170,21 @@ static void R_ProjectSprite(mobj_t *thing)
I_Error("R_ProjectSprite: sprframes NULL for sprite %d\n", thing->sprite);
#endif
if (sprframe->rotate)
if (sprframe->rotate == SRF_SINGLE)
{
// use single rotation for all views
rot = 0; //Fab: for vis->patch below
lump = sprframe->lumpid[0]; //Fab: see note above
flip = sprframe->flip; // Will only be 0x00 or 0xFF
}
else
{
// choose a different rotation based on player view
ang = R_PointToAngle (thing->x, thing->y) - thing->angle;
if ((ang < ANGLE_180) && (sprframe->rotate & 4)) // See from right
if ((ang < ANGLE_180) && (sprframe->rotate & SRF_RIGHT)) // See from right
rot = 6; // F7 slot
else if ((ang >= ANGLE_180) && (sprframe->rotate & 2)) // See from left
else if ((ang >= ANGLE_180) && (sprframe->rotate & SRF_LEFT)) // See from left
rot = 2; // F3 slot
else // Normal behaviour
rot = (ang+ANGLE_202h)>>29;
@ -1183,13 +1193,6 @@ static void R_ProjectSprite(mobj_t *thing)
lump = sprframe->lumpid[rot];
flip = sprframe->flip & (1<<rot);
}
else
{
// use single rotation for all views
rot = 0; //Fab: for vis->patch below
lump = sprframe->lumpid[0]; //Fab: see note above
flip = sprframe->flip; // Will only be 0x00 or 0xFF
}
I_Assert(lump < max_spritelumps);