[http://sourceforge.net/p/ufoai/bugs/2354 Item 2354] imported from sourceforge.net tracker on 2013-01-28 19:30:37

During campaign mode a new mission showed up. While clicking on that (I attached at least a half screenshot!) I got this assertion bug:

ufo: src/client/menu/node/m_node_vscrollbar.c:400: MN_VScrollbarNodeDraw: Assertion >>y == pos[1] + node->size[1] - ELEMENT_HEIGHT<< failed.

ufo ai is r28506

Probably introduced during fixing icons on the backside of the geoscape.
===== Comments Ported from Sourceforge =====

====== bekoszaf (2010-02-08 23:15:36) ======


====== bekoszaf (2010-02-08 23:19:29) ======

Reproducable on attached savegame. Just hit fast forward. The next mission that pops up. Click on the appearing panel of the mission => crash
====== bekoszaf (2010-02-08 23:20:17) ======

Hit fast forward => click on mission panel upper left => crash
====== bekoszaf (2010-02-08 23:31:22) ======

crashes also on clicking on the mission on the geoscape directly. So my campaign is jammed if I don&#039;t want to ignore this mission.
====== tlh2000 (2010-02-09 08:00:05) ======

not reproducible here with latest trunk (also tried the rev you posted) - what is the resolution you are using?
====== bekoszaf (2010-02-09 10:33:44) ======

I use 1280x1024 (fullscreen: no). Crash still occures with r28509. Changing to 1024x768 _WORKS_ so this is (again) resolution related.

------- video initialization -------
SDL version: 1.2.14
I: desktop depth: 32bpp
I: video memory: 0
I: video driver: x11
I: setting mode 8
I: set multisample buffers to 1
I: set swap control to 0
I: 1280x1024 (fullscreen: no)
I: got 8 bits of stencil
I: got 24 bits of depth buffer
I: got double buffer
I: got 8 bits for red
I: got 8 bits for green
I: got 8 bits for blue
I: got 0 bits for alpha
I: got 2 multisample buffers
GL_VENDOR: NVIDIA Corporation
GL_RENDERER: GeForce FX 5900XT/AGP/SSE2
GL_VERSION: 2.1.2 NVIDIA 173.14.22
GL_EXTENSIONS: GL_ARB_depth_texture GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_half_float_pixel GL_ARB_imaging GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_shadow GL_ARB_shader_objects GL_ARB_shading_language_100 GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_dot3 GL_ARB_texture_mirrored_repeat GL_ARB_texture_rectangle GL_ARB_transpose_matrix GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_window_pos GL_S3_s3tc GL_EXT_texture_env_add GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_compiled_vertex_array GL_EXT_Cg_shader GL_EXT_depth_bounds_test GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_framebuffer_object GL_EXT_gpu_program_parameters GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_pixels GL_EXT_paletted_texture GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color GL_EXT_shadow_funcs GL_EXT_shared_texture_palette GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture3D GL_EXT_texture_compression_s3tc GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_lod GL_EXT_texture_lod_bias GL_EXT_texture_object GL_EXT_texture_sRGB GL_EXT_timer_query GL_EXT_vertex_array GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_KTX_buffer_region GL_NV_blend_square GL_NV_copy_depth_to_color GL_NV_depth_clamp GL_NV_fence GL_NV_float_buffer GL_NV_fog_distance GL_NV_fragment_program GL_NV_fragment_program_option GL_NV_framebuffer_multisample_coverage GL_NV_half_float GL_NV_light_max_exponent GL_NV_multisample_filter_hint GL_NV_occlusion_query GL_NV_packed_depth_stencil GL_NV_pixel_data_range GL_NV_point_sprite GL_NV_primitive_restart GL_NV_register_combiners GL_NV_register_combiners2 GL_NV_texgen_reflection GL_NV_texture_compression_vtc GL_NV_texture_env_combine4 GL_NV_texture_expand_normal GL_NV_texture_rectangle GL_NV_texture_shader GL_NV_texture_shader2 GL_NV_texture_shader3 GL_NV_vertex_array_range GL_NV_vertex_array_range2 GL_NV_vertex_program GL_NV_vertex_program1_1 GL_NV_vertex_program2 GL_NV_vertex_program2_option GL_SGIS_generate_mipmap GL_SGIS_texture_lod GL_SGIX_depth_texture GL_SGIX_shadow GL_SUN_slice_accum
max texture units: 4
max texture size: detected 4096
====== bekoszaf (2010-02-09 10:41:09) ======

* Oh, I take that back. During testing something different it crashed on 1024x768 at this point too.

* On 1024x768 it workes in most cases but not always.

* On 1280x1024 it crashes about always selecting this mission

* When I got my autosave after starting the mission it sometimes crashes now at this point on loading the quickslot when the geoscape centeres on the hotspot.
====== bayo-fr (2010-02-10 19:59:06) ======

It should mean the loop is wrong with some resolutions. I add an assert here for it.

I dont yet check, but maybe if you can post values of y, pos[1], node->size[1] it can help for very special cases, A node with a negative size, i dont know...
====== tlh2000 (2010-02-28 08:03:40) ======

is this still an issue?
====== tlh2000 (2010-03-02 21:00:38) ======

i will set this to pending in a few days if nothing new is reported here during that time.
====== thilosf (2010-03-23 10:19:39) ======

Got this crash recently with r29096 running on debian lenny:

ufo: src/client/menu/node/m_node_vscrollbar.c:400: MN_VScrollbarNodeDraw: Zusicherung >>y == pos[1] + node->size[1] - ELEMENT_HEIGHT<< nicht erfüllt.

Seems to be related to the screen resolution. Happens with 1280x1024, but NOT with 1024x768. The mission is

mission: &#039;cat2_interest150_0&#039;
...category 2. &#039;Terror mission&#039; -- stage 5. &#039;Terror mission underway&#039;
...mapDef: &#039;farm_medium&#039;
...location: &#039;Suva&#039;
...start (day = 760892, sec = 68272), ends (day = 760893, sec = 81402)
...pos (-178.43, -18.13)(assigned Pos) -- mission on Geoscape
...UFO: craft_ufo_harvester (0/1)

Like in bekoszaf&#039;s screenshot, it is a mission on the farm map, but I cannot imagine this to be relevant.

The savegame with the mission already on geoscape can be grabbed here: http://thiloernst.de/slot7.xml (can&#039;t figure out how to attach a file to this bug report).
====== bayo-fr (2010-03-28 12:55:08) ======

problem come from
* non integer number into node position
* from layout rendering
* from MN_NodeGetPoint output

Thats not only a geoscape problem.

MN_NodeGetPoint output is now integer. Fixed in r29176