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Sliding fixes

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This commit is contained in:
Arceveti
2021-09-25 10:00:59 -07:00
parent 6d152e0ffb
commit a39b382db6
1 changed files with 14 additions and 20 deletions
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34
src/game/mario_actions_moving.c
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@@ -159,9 +159,6 @@ s32 set_triple_jump_action(struct MarioState *m, UNUSED u32 action, UNUSED u32 a
}
void update_sliding_angle(struct MarioState *m, f32 accel, f32 lossFactor) {
s32 newFacingDYaw;
s16 facingDYaw;
struct Surface *floor = m->floor;
s16 slopeAngle = atan2s(floor->normal.z, floor->normal.x);
f32 steepness = sqrtf(floor->normal.x * floor->normal.x + floor->normal.z * floor->normal.z);
@@ -174,23 +171,22 @@ void update_sliding_angle(struct MarioState *m, f32 accel, f32 lossFactor) {
m->slideYaw = atan2s(m->slideVelZ, m->slideVelX);
facingDYaw = m->faceAngle[1] - m->slideYaw;
newFacingDYaw = facingDYaw;
s16 facingDYaw = m->faceAngle[1] - m->slideYaw;
s32 newFacingDYaw = facingDYaw;
//! -0x4000 not handled - can slide down a slope while facing perpendicular to it
if (newFacingDYaw > 0 && newFacingDYaw <= 0x4000) {
if (newFacingDYaw > 0 && newFacingDYaw <= 0x4000) { // (0..0x4000]
if ((newFacingDYaw -= 0x200) < 0) {
newFacingDYaw = 0;
}
} else if (newFacingDYaw > -0x4000 && newFacingDYaw < 0) {
} else if (newFacingDYaw >= -0x4000 && newFacingDYaw < 0) { // [-0x4000..0)
if ((newFacingDYaw += 0x200) > 0) {
newFacingDYaw = 0;
}
} else if (newFacingDYaw > 0x4000 && newFacingDYaw < 0x8000) {
} else if (newFacingDYaw > 0x4000 && newFacingDYaw < 0x8000) { // (0x4000..0x8000)
if ((newFacingDYaw += 0x200) > 0x8000) {
newFacingDYaw = 0x8000;
}
} else if (newFacingDYaw > -0x8000 && newFacingDYaw < -0x4000) {
} else if (newFacingDYaw > -0x8000 && newFacingDYaw < -0x4000) { // (-0x8000..-0x4000)
if ((newFacingDYaw -= 0x200) < -0x8000) {
newFacingDYaw = -0x8000;
}
@@ -220,14 +216,11 @@ void update_sliding_angle(struct MarioState *m, f32 accel, f32 lossFactor) {
s32 update_sliding(struct MarioState *m, f32 stopSpeed) {
f32 lossFactor;
f32 accel;
f32 oldSpeed;
f32 newSpeed;
s32 stopped = FALSE;
s16 intendedDYaw = m->intendedYaw - m->slideYaw;
f32 forward = coss(intendedDYaw);
f32 sideward = sins(intendedDYaw);
//! 10k glitch
if (forward < 0.0f && m->forwardVel >= 0.0f) {
@@ -256,15 +249,16 @@ s32 update_sliding(struct MarioState *m, f32 stopSpeed) {
break;
}
oldSpeed = sqrtf(sqr(m->slideVelX) + sqr(m->slideVelZ));
f32 oldSpeed = sqrtf(sqr(m->slideVelX) + sqr(m->slideVelZ));
//! This is attempting to use trig derivatives to rotate Mario's speed.
// It is slightly off/asymmetric since it uses the new X speed, but the old
// Z speed.
m->slideVelX += m->slideVelZ * (m->intendedMag / 32.0f) * sideward * 0.05f;
m->slideVelZ -= m->slideVelX * (m->intendedMag / 32.0f) * sideward * 0.05f;
f32 sideward = ((m->intendedMag / 32.0f) * sins(intendedDYaw) * 0.05f);
f32 slideVelXModifier = (m->slideVelZ * sideward);
f32 slideVelZModifier = (m->slideVelX * sideward);
newSpeed = sqrtf(sqr(m->slideVelX) + sqr(m->slideVelZ));
m->slideVelX += slideVelXModifier;
m->slideVelZ -= slideVelZModifier;
f32 newSpeed = sqrtf(sqr(m->slideVelX) + sqr(m->slideVelZ));
if (oldSpeed > 0.0f && newSpeed > 0.0f) {
m->slideVelX = m->slideVelX * oldSpeed / newSpeed;