87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
#include "voxel_tool_terrain.h"
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#include "../terrain/voxel_map.h"
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#include "../terrain/voxel_terrain.h"
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#include "../util/voxel_raycast.h"
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VoxelToolTerrain::VoxelToolTerrain(VoxelTerrain *terrain, Ref<VoxelMap> map) {
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ERR_FAIL_COND(terrain == nullptr);
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_terrain = terrain;
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_map = map;
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// Don't destroy the terrain while a voxel tool still references it
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}
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bool VoxelToolTerrain::is_area_editable(const Rect3i &box) const {
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ERR_FAIL_COND_V(_terrain == nullptr, false);
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return _map->is_area_fully_loaded(box.padded(1));
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}
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Ref<VoxelRaycastResult> VoxelToolTerrain::raycast(Vector3 pos, Vector3 dir, float max_distance) {
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// TODO Transform input if the terrain is rotated (in the future it can be made a Spatial node)
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struct RaycastPredicate {
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const VoxelTerrain &terrain;
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bool operator()(Vector3i pos) {
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//unsigned int channel = context->channel;
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Ref<VoxelMap> map = terrain.get_storage();
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int v0 = map->get_voxel(pos, VoxelBuffer::CHANNEL_TYPE);
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Ref<VoxelLibrary> lib_ref = terrain.get_voxel_library();
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if (lib_ref.is_null())
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return false;
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const VoxelLibrary &lib = **lib_ref;
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if (lib.has_voxel(v0) == false)
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return false;
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const Voxel &voxel = lib.get_voxel_const(v0);
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if (voxel.is_transparent() == false)
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return true;
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float v1 = map->get_voxel_f(pos, VoxelBuffer::CHANNEL_SDF);
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return v1 < 0;
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}
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};
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Vector3i hit_pos;
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Vector3i prev_pos;
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Ref<VoxelRaycastResult> res;
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RaycastPredicate predicate = { *_terrain };
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if (voxel_raycast(pos, dir, predicate, max_distance, hit_pos, prev_pos)) {
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res.instance();
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res->position = hit_pos;
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res->previous_position = prev_pos;
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}
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return res;
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}
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int VoxelToolTerrain::_get_voxel(Vector3i pos) {
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ERR_FAIL_COND_V(_terrain == nullptr, 0);
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return _map->get_voxel(pos, _channel);
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}
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float VoxelToolTerrain::_get_voxel_f(Vector3i pos) {
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ERR_FAIL_COND_V(_terrain == nullptr, 0);
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return _map->get_voxel_f(pos, _channel);
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}
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void VoxelToolTerrain::_set_voxel(Vector3i pos, int v) {
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ERR_FAIL_COND(_terrain == nullptr);
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_map->set_voxel(v, pos, _channel);
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}
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void VoxelToolTerrain::_set_voxel_f(Vector3i pos, float v) {
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ERR_FAIL_COND(_terrain == nullptr);
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_map->set_voxel_f(v, pos, _channel);
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}
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void VoxelToolTerrain::_post_edit(const Rect3i &box) {
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ERR_FAIL_COND(_terrain == nullptr);
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_terrain->make_area_dirty(box);
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}
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