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Implemented toggleable draw distance #149

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Merged
KiritoDv merged 1 commit into from
Feb 17, 2026
Merged

Implemented toggleable draw distance #149

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1 change: 1 addition & 0 deletions include/sm64.h
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
#include <PR/gu.h>
#include <PR/ucode.h>
#include "port/Engine.h"
#include "port/hooks/Events.h"
#include <libultra/os.h>
#include "variables.h"

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22 changes: 13 additions & 9 deletions src/engine/behavior_script.c
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Expand Up @@ -991,15 +991,19 @@ void cur_obj_update(void) {
cur_obj_enable_rendering_if_mario_in_room();
} else if ((objFlags & OBJ_FLAG_COMPUTE_DIST_TO_MARIO) && gCurrentObject->collisionData == NULL) {
if (!(objFlags & OBJ_FLAG_ACTIVE_FROM_AFAR)) {
// If the object has a render distance, check if it should be shown.
if (distanceFromMario > gCurrentObject->oDrawingDistance) {
// Out of render distance, hide the object.
gCurrentObject->header.gfx.node.flags &= ~GRAPH_RENDER_ACTIVE;
gCurrentObject->activeFlags |= ACTIVE_FLAG_FAR_AWAY;
} else if (gCurrentObject->oHeldState == HELD_FREE) {
// In render distance (and not being held), show the object.
gCurrentObject->header.gfx.node.flags |= GRAPH_RENDER_ACTIVE;
gCurrentObject->activeFlags &= ~ACTIVE_FLAG_FAR_AWAY;
bool visible = distanceFromMario <= gCurrentObject->oDrawingDistance;

CALL_CANCELLABLE_EVENT(EntityDistanceRender, &visible) {
// If the object has a render distance, check if it should be shown.
if (!visible) {
// Out of render distance, hide the object.
gCurrentObject->header.gfx.node.flags &= ~GRAPH_RENDER_ACTIVE;
gCurrentObject->activeFlags |= ACTIVE_FLAG_FAR_AWAY;
} else if (gCurrentObject->oHeldState == HELD_FREE) {
// In render distance (and not being held), show the object.
gCurrentObject->header.gfx.node.flags |= GRAPH_RENDER_ACTIVE;
gCurrentObject->activeFlags &= ~ACTIVE_FLAG_FAR_AWAY;
}
}
}
}
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14 changes: 9 additions & 5 deletions src/engine/surface_load.c
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Expand Up @@ -789,9 +789,13 @@ void load_object_collision_model(void) {
}
}

if (marioDist < gCurrentObject->oDrawingDistance) {
gCurrentObject->header.gfx.node.flags |= GRAPH_RENDER_ACTIVE;
} else {
gCurrentObject->header.gfx.node.flags &= ~GRAPH_RENDER_ACTIVE;
}
bool visible = (marioDist < gCurrentObject->oDrawingDistance);

CALL_CANCELLABLE_EVENT(EntityDistanceLoad, &visible) {
if (visible) {
gCurrentObject->header.gfx.node.flags |= GRAPH_RENDER_ACTIVE;
} else {
gCurrentObject->header.gfx.node.flags &= ~GRAPH_RENDER_ACTIVE;
}
};
}
14 changes: 9 additions & 5 deletions src/game/behaviors/bub.inc.c
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Expand Up @@ -7,12 +7,16 @@
void bub_spawner_act_0(void) {
s32 i;
s32 sp18 = o->oBirdChirpChirpUnkF4;
if (o->oDistanceToMario < 1500.0f) {
for (i = 0; i < sp18; i++) {
spawn_object(o, MODEL_BUB, bhvBub);
bool visible = o->oDistanceToMario < 1500.0f;

CALL_CANCELLABLE_EVENT(EntityDistanceLoad, &visible) {
if (visible) {
for (i = 0; i < sp18; i++) {
spawn_object(o, MODEL_BUB, bhvBub);
}
o->oAction = 1;
}
o->oAction = 1;
}
};
}

void bub_spawner_act_1(void) {
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216 changes: 112 additions & 104 deletions src/game/behaviors/chain_chomp.inc.c
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Expand Up @@ -50,35 +50,39 @@ static void chain_chomp_act_uninitialized(void) {
struct ChainSegment *segments;
s32 i;

if (o->oDistanceToMario < 3000.0f) {
segments = mem_pool_alloc(gObjectMemoryPool, 5 * sizeof(struct ChainSegment));
if (segments != NULL) {
// Each segment represents the offset of a chain part to the pivot.
// Segment 0 connects the pivot to the chain chomp itself. Segment
// 1 connects the pivot to the chain part next to the chain chomp
// (chain part 1), etc.
o->oChainChompSegments = segments;
for (i = 0; i <= 4; i++) {
chain_segment_init(&segments[i]);
}
bool visible = o->oDistanceToMario < 3000.0f;

CALL_CANCELLABLE_EVENT(EntityDistanceLoad, &visible) {
if (visible) {
segments = mem_pool_alloc(gObjectMemoryPool, 5 * sizeof(struct ChainSegment));
if (segments != NULL) {
// Each segment represents the offset of a chain part to the pivot.
// Segment 0 connects the pivot to the chain chomp itself. Segment
// 1 connects the pivot to the chain part next to the chain chomp
// (chain part 1), etc.
o->oChainChompSegments = segments;
for (i = 0; i <= 4; i++) {
chain_segment_init(&segments[i]);
}

cur_obj_set_pos_to_home();
cur_obj_set_pos_to_home();

// Spawn the pivot and set to parent
if ((o->parentObj =
spawn_object(o, CHAIN_CHOMP_CHAIN_PART_BP_PIVOT, bhvChainChompChainPart))
!= NULL) {
// Spawn the non-pivot chain parts, starting from the chain
// chomp and moving toward the pivot
for (i = 1; i <= 4; i++) {
spawn_object_relative(i, 0, 0, 0, o, MODEL_METALLIC_BALL, bhvChainChompChainPart);
}
// Spawn the pivot and set to parent
if ((o->parentObj =
spawn_object(o, CHAIN_CHOMP_CHAIN_PART_BP_PIVOT, bhvChainChompChainPart))
!= NULL) {
// Spawn the non-pivot chain parts, starting from the chain
// chomp and moving toward the pivot
for (i = 1; i <= 4; i++) {
spawn_object_relative(i, 0, 0, 0, o, MODEL_METALLIC_BALL, bhvChainChompChainPart);
}

o->oAction = CHAIN_CHOMP_ACT_MOVE;
cur_obj_unhide();
o->oAction = CHAIN_CHOMP_ACT_MOVE;
cur_obj_unhide();
}
}
}
}
};
}

/**
Expand Down Expand Up @@ -355,94 +359,98 @@ static void chain_chomp_act_move(void) {
f32 maxDistToPivot;

// Unload chain if mario is far enough
if (o->oChainChompReleaseStatus == CHAIN_CHOMP_NOT_RELEASED && o->oDistanceToMario > 4000.0f) {
o->oAction = CHAIN_CHOMP_ACT_UNLOAD_CHAIN;
o->oForwardVel = o->oVelY = 0.0f;
} else {
cur_obj_update_floor_and_walls();
bool visible = o->oDistanceToMario <= 4000.0f;

switch (o->oChainChompReleaseStatus) {
case CHAIN_CHOMP_NOT_RELEASED:
switch (o->oSubAction) {
case CHAIN_CHOMP_SUB_ACT_TURN:
chain_chomp_sub_act_turn();
break;
case CHAIN_CHOMP_SUB_ACT_LUNGE:
chain_chomp_sub_act_lunge();
break;
}
break;
case CHAIN_CHOMP_RELEASED_TRIGGER_CUTSCENE:
chain_chomp_released_trigger_cutscene();
break;
case CHAIN_CHOMP_RELEASED_LUNGE_AROUND:
chain_chomp_released_lunge_around();
break;
case CHAIN_CHOMP_RELEASED_BREAK_GATE:
chain_chomp_released_break_gate();
break;
case CHAIN_CHOMP_RELEASED_JUMP_AWAY:
chain_chomp_released_jump_away();
break;
case CHAIN_CHOMP_RELEASED_END_CUTSCENE:
chain_chomp_released_end_cutscene();
break;
}
CALL_CANCELLABLE_EVENT(EntityDistanceRender, &visible) {
if (o->oChainChompReleaseStatus == CHAIN_CHOMP_NOT_RELEASED && !visible) {
o->oAction = CHAIN_CHOMP_ACT_UNLOAD_CHAIN;
o->oForwardVel = o->oVelY = 0.0f;
} else {
cur_obj_update_floor_and_walls();

switch (o->oChainChompReleaseStatus) {
case CHAIN_CHOMP_NOT_RELEASED:
switch (o->oSubAction) {
case CHAIN_CHOMP_SUB_ACT_TURN:
chain_chomp_sub_act_turn();
break;
case CHAIN_CHOMP_SUB_ACT_LUNGE:
chain_chomp_sub_act_lunge();
break;
}
break;
case CHAIN_CHOMP_RELEASED_TRIGGER_CUTSCENE:
chain_chomp_released_trigger_cutscene();
break;
case CHAIN_CHOMP_RELEASED_LUNGE_AROUND:
chain_chomp_released_lunge_around();
break;
case CHAIN_CHOMP_RELEASED_BREAK_GATE:
chain_chomp_released_break_gate();
break;
case CHAIN_CHOMP_RELEASED_JUMP_AWAY:
chain_chomp_released_jump_away();
break;
case CHAIN_CHOMP_RELEASED_END_CUTSCENE:
chain_chomp_released_end_cutscene();
break;
}

cur_obj_move_standard(78);
cur_obj_move_standard(78);

// Segment 0 connects the pivot to the chain chomp itself
o->oChainChompSegments[0].posX = o->oPosX - o->parentObj->oPosX;
o->oChainChompSegments[0].posY = o->oPosY - o->parentObj->oPosY;
o->oChainChompSegments[0].posZ = o->oPosZ - o->parentObj->oPosZ;

o->oChainChompDistToPivot =
sqrtf(o->oChainChompSegments[0].posX * o->oChainChompSegments[0].posX
+ o->oChainChompSegments[0].posY * o->oChainChompSegments[0].posY
+ o->oChainChompSegments[0].posZ * o->oChainChompSegments[0].posZ);

// If the chain is fully stretched
maxDistToPivot = o->oChainChompMaxDistFromPivotPerChainPart * 5;
if (o->oChainChompDistToPivot > maxDistToPivot) {
f32 ratio = maxDistToPivot / o->oChainChompDistToPivot;
o->oChainChompDistToPivot = maxDistToPivot;

o->oChainChompSegments[0].posX *= ratio;
o->oChainChompSegments[0].posY *= ratio;
o->oChainChompSegments[0].posZ *= ratio;

if (o->oChainChompReleaseStatus == CHAIN_CHOMP_NOT_RELEASED) {
// Restrict chain chomp position
o->oPosX = o->parentObj->oPosX + o->oChainChompSegments[0].posX;
o->oPosY = o->parentObj->oPosY + o->oChainChompSegments[0].posY;
o->oPosZ = o->parentObj->oPosZ + o->oChainChompSegments[0].posZ;

o->oChainChompRestrictedByChain = TRUE;
} else {
// Move pivot like the chain chomp is pulling it along
f32 oldPivotY = o->parentObj->oPosY;
// Segment 0 connects the pivot to the chain chomp itself
o->oChainChompSegments[0].posX = o->oPosX - o->parentObj->oPosX;
o->oChainChompSegments[0].posY = o->oPosY - o->parentObj->oPosY;
o->oChainChompSegments[0].posZ = o->oPosZ - o->parentObj->oPosZ;

o->oChainChompDistToPivot =
sqrtf(o->oChainChompSegments[0].posX * o->oChainChompSegments[0].posX
+ o->oChainChompSegments[0].posY * o->oChainChompSegments[0].posY
+ o->oChainChompSegments[0].posZ * o->oChainChompSegments[0].posZ);

// If the chain is fully stretched
maxDistToPivot = o->oChainChompMaxDistFromPivotPerChainPart * 5;
if (o->oChainChompDistToPivot > maxDistToPivot) {
f32 ratio = maxDistToPivot / o->oChainChompDistToPivot;
o->oChainChompDistToPivot = maxDistToPivot;

o->oChainChompSegments[0].posX *= ratio;
o->oChainChompSegments[0].posY *= ratio;
o->oChainChompSegments[0].posZ *= ratio;

if (o->oChainChompReleaseStatus == CHAIN_CHOMP_NOT_RELEASED) {
// Restrict chain chomp position
o->oPosX = o->parentObj->oPosX + o->oChainChompSegments[0].posX;
o->oPosY = o->parentObj->oPosY + o->oChainChompSegments[0].posY;
o->oPosZ = o->parentObj->oPosZ + o->oChainChompSegments[0].posZ;

o->oChainChompRestrictedByChain = TRUE;
} else {
// Move pivot like the chain chomp is pulling it along
f32 oldPivotY = o->parentObj->oPosY;

o->parentObj->oPosX = o->oPosX - o->oChainChompSegments[0].posX;
o->parentObj->oPosY = o->oPosY - o->oChainChompSegments[0].posY;
o->parentObj->oVelY = o->parentObj->oPosY - oldPivotY;
o->parentObj->oPosZ = o->oPosZ - o->oChainChompSegments[0].posZ;
o->parentObj->oPosX = o->oPosX - o->oChainChompSegments[0].posX;
o->parentObj->oPosY = o->oPosY - o->oChainChompSegments[0].posY;
o->parentObj->oVelY = o->parentObj->oPosY - oldPivotY;
o->parentObj->oPosZ = o->oPosZ - o->oChainChompSegments[0].posZ;
}
} else {
o->oChainChompRestrictedByChain = FALSE;
}
} else {
o->oChainChompRestrictedByChain = FALSE;
}

chain_chomp_update_chain_segments();
chain_chomp_update_chain_segments();

// Begin a lunge if mario tries to attack
if (obj_check_attacks(&sChainChompHitbox, o->oAction) != 0) {
o->oSubAction = CHAIN_CHOMP_SUB_ACT_LUNGE;
o->oChainChompMaxDistFromPivotPerChainPart = 900.0f / 5;
o->oForwardVel = 0.0f;
o->oVelY = 300.0f;
o->oGravity = -4.0f;
o->oChainChompTargetPitch = -0x3000;
// Begin a lunge if mario tries to attack
if (obj_check_attacks(&sChainChompHitbox, o->oAction) != 0) {
o->oSubAction = CHAIN_CHOMP_SUB_ACT_LUNGE;
o->oChainChompMaxDistFromPivotPerChainPart = 900.0f / 5;
o->oForwardVel = 0.0f;
o->oVelY = 300.0f;
o->oGravity = -4.0f;
o->oChainChompTargetPitch = -0x3000;
}
}
}
};
}

/**
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