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Mike Klaas 1026c79ac5 Implement objects_in_radius (#399)
* Implement `objects_in_radius`

Used by Et tu and a few other mods
2026-04-21 22:20:59 -07:00

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#include "sfall.h"
#include "define_extra.h"
#include "test_utils.h"
#define TEST_ITEM_PID 40
variable blocker_obj := 0;
variable radius_obj := 0;
procedure cleanup begin
if (blocker_obj) then begin
destroy_object(blocker_obj);
blocker_obj := 0;
end
if (radius_obj) then begin
destroy_object(radius_obj);
radius_obj := 0;
end
end
procedure start begin
variable elev := elevation(dude_obj);
variable dude_tile := tile_num(dude_obj);
variable dir;
variable step_tile := -1;
variable step_dir := -1;
variable block_tile := -1;
variable path;
variable objs;
variable ground_fid;
variable roof_fid;
display_msg("Testing tile/path functions...");
call cleanup();
for (dir := 0; dir < 6; dir += 1) begin
variable candidate := tile_num_in_direction(dude_tile, dir, 1);
if (candidate != dude_tile and obj_blocking_tile(candidate, elev, BLOCKING_TYPE_BLOCK) == 0) then begin
if (step_tile == -1) then begin
step_tile := candidate;
step_dir := dir;
end
if (block_tile == -1 and candidate != step_tile) then begin
block_tile := candidate;
end
end
end
call assertNotEquals("found reachable neighboring tile", step_tile, -1);
if (step_tile != -1) then begin
path := path_find_to(dude_obj, step_tile, BLOCKING_TYPE_BLOCK);
call assertEquals("one-step path length", len_array(path), 1);
if (len_array(path) == 1) then
call assertEquals("one-step path direction", get_array(path, 0), step_dir);
radius_obj := create_object_sid(TEST_ITEM_PID, step_tile, elev, -1);
call assertNotEquals("spawned radius item", radius_obj, 0);
if (radius_obj) then begin
objs := sfall_func3("objects_in_radius", dude_tile, 1, elev);
call assertTrue("objects_in_radius all contains dude", scan_array(objs, dude_obj) != -1);
call assertTrue("objects_in_radius all contains item", scan_array(objs, radius_obj) != -1);
objs := sfall_func3("objects_in_radius", dude_tile, 0, elev);
call assertTrue("objects_in_radius radius 0 contains dude", scan_array(objs, dude_obj) != -1);
call assertEquals("objects_in_radius radius 0 excludes adjacent item", scan_array(objs, radius_obj), -1);
objs := objects_in_radius(dude_tile, 1, elev, OBJ_TYPE_ITEM);
call assertTrue("objects_in_radius item filter contains item", scan_array(objs, radius_obj) != -1);
call assertEquals("objects_in_radius item filter excludes dude", scan_array(objs, dude_obj), -1);
objs := objects_in_radius(dude_tile, 1, elev, OBJ_TYPE_CRITTER);
call assertTrue("objects_in_radius critter filter contains dude", scan_array(objs, dude_obj) != -1);
call assertEquals("objects_in_radius critter filter excludes item", scan_array(objs, radius_obj), -1);
end
end
if (block_tile != -1) then begin
blocker_obj := create_object_sid(obj_pid(dude_obj), block_tile, elev, -1);
call assertNotEquals("spawned blocking critter", blocker_obj, 0);
if (blocker_obj) then begin
path := path_find_to(dude_obj, tile_num(blocker_obj), BLOCKING_TYPE_BLOCK);
call assertEquals("occupied destination returns empty path", len_array(path), 0);
end
end else begin
display_msg("Skipping occupied-destination path check: no free adjacent tile for blocker.");
end
objs := tile_get_objs(dude_tile, elev);
call assertTrue("tile_get_objs contains dude", scan_array(objs, dude_obj) != -1);
ground_fid := get_tile_ground_fid(dude_tile, elev);
roof_fid := get_tile_roof_fid(dude_tile, elev);
call assertTrue("ground fid is non-negative", ground_fid >= 0);
call assertTrue("roof fid is non-negative", roof_fid >= 0);
call assertEquals("ground helper matches ext", ground_fid, get_tile_fid_ext(dude_tile, elev, 0));
call assertEquals("roof helper matches ext", roof_fid, get_tile_fid_ext(dude_tile, elev, 1));
call assertTrue("tile_light returns non-negative intensity", tile_light(elev, dude_tile) >= 0);
call assertEquals("tile_by_position metarule exists", metarule_exist("tile_by_position"), 1);
call assertEquals("tile_by_position matches tile_under_cursor", tile_by_position(get_mouse_x, get_mouse_y), tile_under_cursor);
tile_refresh_display;
call cleanup();
call report_test_results("tile_path");
end