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sw/src/player.cpp:DoPlayerTurn: Increase turning precision

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with q16 angle. This uses the new NORM_Q16ANGLE macro.
This commit is contained in:
NY00123 2020-04-03 22:08:21 +03:00 committed by Christoph Oelckers
parent 1a46afaf27
commit 8284fcba9a
2 changed files with 7 additions and 6 deletions
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1
source/sw/src/game.h
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@ -445,6 +445,7 @@ extern char MessageOutputString[256];
#define NORM_ANGLE(ang) ((ang) & 2047) #define NORM_ANGLE(ang) ((ang) & 2047)
#define ANGLE_2_PLAYER(pp,x,y) (NORM_ANGLE(getangle(pp->posx-(x), pp->posy-(y)))) #define ANGLE_2_PLAYER(pp,x,y) (NORM_ANGLE(getangle(pp->posx-(x), pp->posy-(y))))
#define NORM_Q16ANGLE(ang) ((ang) & 0x7FFFFFF)
int StdRandomRange(int range); int StdRandomRange(int range);

12
source/sw/src/player.cpp
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@ -1538,7 +1538,7 @@ DoPlayerCrawlHeight(PLAYERp pp)
void void
DoPlayerTurn(PLAYERp pp) DoPlayerTurn(PLAYERp pp)
{ {
short angvel; fix16_t q16avel;
#define TURN_SHIFT 2 #define TURN_SHIFT 2
@ -1594,15 +1594,15 @@ DoPlayerTurn(PLAYERp pp)
return; return;
} }
angvel = fix16_to_int(pp->input.q16avel) * PLAYER_TURN_SCALE; q16avel = fix16_smul(pp->input.q16avel, fix16_from_int(PLAYER_TURN_SCALE));
if (angvel != 0) if (q16avel != 0)
{ {
// running is not handled here now // running is not handled here now
angvel += DIV4(angvel); q16avel += fix16_sdiv(q16avel, fix16_from_int(4));
pp->q16ang += fix16_from_int(DIV32(angvel * synctics)); pp->q16ang += fix16_sdiv(fix16_mul(q16avel, fix16_from_int(synctics)), fix16_from_int(32));
pp->q16ang = fix16_from_int(NORM_ANGLE(fix16_to_int(pp->q16ang))); pp->q16ang = NORM_Q16ANGLE(pp->q16ang);
// update players sprite angle // update players sprite angle
// NOTE: It's also updated in UpdatePlayerSprite, but needs to be // NOTE: It's also updated in UpdatePlayerSprite, but needs to be