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convert Flip CustomModelAnimType to use a euclidian modulo function

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SpiralP 2020-09-13 22:02:17 -07:00 committed by GitHub
parent 5c8c13f80f
commit f60b1246cc
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1 changed files with 10 additions and 2 deletions
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12
src/Model.c
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@ -526,6 +526,14 @@ void CustomModel_BuildPart(struct CustomModel* cm, struct CustomModelPartDef* pa
part->rotationOrigin.X, part->rotationOrigin.Y, part->rotationOrigin.Z);
}
/* C's % operator/fmod act differently on negatives vs positives,
but we want the function to be consistent on both so that the user can
specify direction using the "a" parameter in "Game.Time * anim->a".
*/
static float EuclidianMod(float x, float y) {
return x - Math_Floor(x / y) * y;
}
static struct ModelVertex oldVertices[MODEL_BOX_VERTICES];
static float CustomModel_GetAnimationValue(
struct CustomModelAnim* anim,
@ -595,12 +603,12 @@ static float CustomModel_GetAnimationValue(
case CustomModelAnimType_FlipRotate:
case CustomModelAnimType_FlipTranslate:
case CustomModelAnimType_FlipSize:
return Math_Modf((float)Game.Time * anim->a + anim->c, anim->d) * anim->b;
return EuclidianMod((float)Game.Time * anim->a + anim->c, anim->d) * anim->b;
case CustomModelAnimType_FlipRotateVelocity:
case CustomModelAnimType_FlipTranslateVelocity:
case CustomModelAnimType_FlipSizeVelocity:
return Math_Modf(e->Anim.WalkTime * anim->a + anim->c, anim->d) * anim->b;
return EuclidianMod(e->Anim.WalkTime * anim->a + anim->c, anim->d) * anim->b;
}
return 0.0f;