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Fix missing grid lines when TileMap has half offset

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This commit is contained in:
Haoyu Qiu 2022-03-13 17:20:43 +08:00
parent 3eee2f45a3
commit f280712215
1 changed files with 18 additions and 13 deletions
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31
editor/plugins/tile_map_editor_plugin.cpp
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@ -832,9 +832,12 @@ void TileMapEditor::_draw_grid(Control *p_viewport, const Rect2 &p_rect) const {
const Size2 screen_size = p_viewport->get_size();
Rect2 rect;
rect.position = node->world_to_map(xform_inv.xform(Vector2()));
rect.expand_to(node->world_to_map(xform_inv.xform(Vector2(0, screen_size.height))));
rect.expand_to(node->world_to_map(xform_inv.xform(Vector2(screen_size.width, 0))));
rect.expand_to(node->world_to_map(xform_inv.xform(screen_size)));
rect.expand_to(node->world_to_map(xform_inv.xform(Vector2(0, screen_size.height))) + Vector2(0, 1));
rect.expand_to(node->world_to_map(xform_inv.xform(Vector2(screen_size.width, 0))) + Vector2(1, 0));
rect.expand_to(node->world_to_map(xform_inv.xform(screen_size)) + Vector2(1, 1));
if (node->get_half_offset() != TileMap::HALF_OFFSET_DISABLED) {
rect.grow_by(1); // So it won't matter whether corners are on an odd or even row/column.
}
clipped = rect.clip(si);
}
clipped.position -= si.position; // Relative to the fade rect, in grid unit.
@ -878,15 +881,16 @@ void TileMapEditor::_draw_grid(Control *p_viewport, const Rect2 &p_rect) const {
const Color color = (x + si.position.x == 0) ? axis_color : grid_color;
const float line_opacity = _lerp_fade(si.size.x, fade, x);
for (int y = clipped.position.y; y < cell_count; y++) {
for (int y = clipped.position.y; y < clipped_end.y; y++) {
Vector2 ofs;
if (ABS(si.position.y + y) & 1) {
ofs = cell_xf[0] * half_offset;
}
points.write[y * 2 + 0] = xform.xform(ofs + node->map_to_world(si.position + Vector2(x, y), true));
points.write[y * 2 + 1] = xform.xform(ofs + node->map_to_world(si.position + Vector2(x, y + 1), true));
colors.write[y * 2 + 0] = Color(color.r, color.g, color.b, color.a * line_opacity * _lerp_fade(si.size.y, fade, y));
colors.write[y * 2 + 1] = Color(color.r, color.g, color.b, color.a * line_opacity * _lerp_fade(si.size.y, fade, y + 1));
const int index = (y - clipped.position.y) * 2;
points.write[index + 0] = xform.xform(ofs + node->map_to_world(si.position + Vector2(x, y), true));
points.write[index + 1] = xform.xform(ofs + node->map_to_world(si.position + Vector2(x, y + 1), true));
colors.write[index + 0] = Color(color.r, color.g, color.b, color.a * line_opacity * _lerp_fade(si.size.y, fade, y));
colors.write[index + 1] = Color(color.r, color.g, color.b, color.a * line_opacity * _lerp_fade(si.size.y, fade, y + 1));
}
p_viewport->draw_multiline_colors(points, colors, 1);
}
@ -923,15 +927,16 @@ void TileMapEditor::_draw_grid(Control *p_viewport, const Rect2 &p_rect) const {
const Color color = (y + si.position.y == 0) ? axis_color : grid_color;
const float line_opacity = _lerp_fade(si.size.y, fade, y);
for (int x = clipped.position.x; x < cell_count; x++) {
for (int x = clipped.position.x; x < clipped_end.x; x++) {
Vector2 ofs;
if (ABS(si.position.x + x) & 1) {
ofs = cell_xf[1] * half_offset;
}
points.write[x * 2 + 0] = xform.xform(ofs + node->map_to_world(si.position + Vector2(x, y), true));
points.write[x * 2 + 1] = xform.xform(ofs + node->map_to_world(si.position + Vector2(x + 1, y), true));
colors.write[x * 2 + 0] = Color(color.r, color.g, color.b, color.a * line_opacity * _lerp_fade(si.size.x, fade, x));
colors.write[x * 2 + 1] = Color(color.r, color.g, color.b, color.a * line_opacity * _lerp_fade(si.size.x, fade, x + 1));
const int index = (x - clipped.position.x) * 2;
points.write[index + 0] = xform.xform(ofs + node->map_to_world(si.position + Vector2(x, y), true));
points.write[index + 1] = xform.xform(ofs + node->map_to_world(si.position + Vector2(x + 1, y), true));
colors.write[index + 0] = Color(color.r, color.g, color.b, color.a * line_opacity * _lerp_fade(si.size.x, fade, x));
colors.write[index + 1] = Color(color.r, color.g, color.b, color.a * line_opacity * _lerp_fade(si.size.x, fade, x + 1));
}
p_viewport->draw_multiline_colors(points, colors, 1);
}