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Add multi-tile entity support with tile_width/tile_height, closes #236

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Entities can now span multiple grid cells via tile_width and tile_height
properties (default 1x1). Frustum culling accounts for entity footprint,
and spatial hash queries return multi-tile entities for all covered cells.

API: entity.tile_size = (2, 2) or entity.tile_width = 2; entity.tile_height = 3

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
John McCardle 2026-04-10 02:57:47 -04:00
commit a4e0b97ecb
5 changed files with 186 additions and 7 deletions
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61
src/UIEntity.cpp
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@ -845,6 +845,60 @@ int UIEntity::set_sprite_offset_member(PyUIEntityObject* self, PyObject* value,
return 0;
}
// #236 - Multi-tile entity size
PyObject* UIEntity::get_tile_size(PyUIEntityObject* self, void* closure) {
return sfVector2f_to_PyObject(sf::Vector2f(
static_cast<float>(self->data->tile_width),
static_cast<float>(self->data->tile_height)));
}
int UIEntity::set_tile_size(PyUIEntityObject* self, PyObject* value, void* closure) {
sf::Vector2f vec = PyObject_to_sfVector2f(value);
if (PyErr_Occurred()) return -1;
int tw = static_cast<int>(vec.x);
int th = static_cast<int>(vec.y);
if (tw < 1 || th < 1) {
PyErr_SetString(PyExc_ValueError, "tile_size components must be >= 1");
return -1;
}
self->data->tile_width = tw;
self->data->tile_height = th;
if (self->data->grid) self->data->grid->markDirty();
return 0;
}
PyObject* UIEntity::get_tile_width(PyUIEntityObject* self, void* closure) {
return PyLong_FromLong(self->data->tile_width);
}
int UIEntity::set_tile_width(PyUIEntityObject* self, PyObject* value, void* closure) {
int val = PyLong_AsLong(value);
if (val == -1 && PyErr_Occurred()) return -1;
if (val < 1) {
PyErr_SetString(PyExc_ValueError, "tile_width must be >= 1");
return -1;
}
self->data->tile_width = val;
if (self->data->grid) self->data->grid->markDirty();
return 0;
}
PyObject* UIEntity::get_tile_height(PyUIEntityObject* self, void* closure) {
return PyLong_FromLong(self->data->tile_height);
}
int UIEntity::set_tile_height(PyUIEntityObject* self, PyObject* value, void* closure) {
int val = PyLong_AsLong(value);
if (val == -1 && PyErr_Occurred()) return -1;
if (val < 1) {
PyErr_SetString(PyExc_ValueError, "tile_height must be >= 1");
return -1;
}
self->data->tile_height = val;
if (self->data->grid) self->data->grid->markDirty();
return 0;
}
PyObject* UIEntity::die(PyUIEntityObject* self, PyObject* Py_UNUSED(ignored))
{
// Check if entity has a grid
@ -1596,6 +1650,13 @@ PyGetSetDef UIEntity::getsetters[] = {
"X component of sprite pixel offset.", (void*)0},
{"sprite_offset_y", (getter)UIEntity::get_sprite_offset_member, (setter)UIEntity::set_sprite_offset_member,
"Y component of sprite pixel offset.", (void*)1},
// #236 - Multi-tile entity size
{"tile_size", (getter)UIEntity::get_tile_size, (setter)UIEntity::set_tile_size,
"Entity size in tiles as (width, height) Vector. Default (1, 1).", NULL},
{"tile_width", (getter)UIEntity::get_tile_width, (setter)UIEntity::set_tile_width,
"Entity width in tiles (int). Must be >= 1. Default 1.", NULL},
{"tile_height", (getter)UIEntity::get_tile_height, (setter)UIEntity::set_tile_height,
"Entity height in tiles (int). Must be >= 1. Default 1.", NULL},
// #296 - Label system
{"labels", (getter)UIEntity::get_labels, (setter)UIEntity::set_labels,
"Set of string labels for collision/targeting (frozenset). "