From: Lars Müller <34514239+appgurueu@users.noreply.github.com> Date: Sat, 11 Apr 2020 21:09:46 +0000 (+0200) Subject: Improve waypoints and add image variant (#9480) X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=af2e6a6a10121cf971d4ce4c33d523b6dc037d31;p=oweals%2Fminetest.git Improve waypoints and add image variant (#9480) --- diff --git a/doc/client_lua_api.txt b/doc/client_lua_api.txt index 71df91c68..53ed680d0 100644 --- a/doc/client_lua_api.txt +++ b/doc/client_lua_api.txt @@ -1416,12 +1416,35 @@ Displays a horizontal bar made up of half-images. * `offset`: offset in pixels from position. ### `waypoint` + Displays distance to selected world position. * `name`: The name of the waypoint. * `text`: Distance suffix. Can be blank. -* `number:` An integer containing the RGB value of the color used to draw the text. +* `precision`: Waypoint precision, integer >= 0. Defaults to 10. + If set to 0, distance is not shown. Shown value is `floor(distance*precision)/precision`. + When the precision is an integer multiple of 10, there will be `log_10(precision)` digits after the decimal point. + `precision = 1000`, for example, will show 3 decimal places (eg: `0.999`). + `precision = 2` will show multiples of `0.5`; precision = 5 will show multiples of `0.2` and so on: + `precision = n` will show multiples of `1/n` +* `number:` An integer containing the RGB value of the color used to draw the + text. * `world_pos`: World position of the waypoint. +* `offset`: offset in pixels from position. +* `alignment`: The alignment of the waypoint. + +### `image_waypoint` + +Same as `image`, but does not accept a `position`; the position is instead determined by `world_pos`, the world position of the waypoint. + +* `scale`: The scale of the image, with 1 being the original texture size. + Only the X coordinate scale is used (positive values). + Negative values represent that percentage of the screen it + should take; e.g. `x=-100` means 100% (width). +* `text`: The name of the texture that is displayed. +* `alignment`: The alignment of the image. +* `world_pos`: World position of the waypoint. +* `offset`: offset in pixels from position. ### Particle definition (`add_particle`) diff --git a/doc/lua_api.txt b/doc/lua_api.txt index b083b2907..1a9aad344 100644 --- a/doc/lua_api.txt +++ b/doc/lua_api.txt @@ -1364,10 +1364,30 @@ Displays distance to selected world position. * `name`: The name of the waypoint. * `text`: Distance suffix. Can be blank. +* `precision`: Waypoint precision, integer >= 0. Defaults to 10. + If set to 0, distance is not shown. Shown value is `floor(distance*precision)/precision`. + When the precision is an integer multiple of 10, there will be `log_10(precision)` digits after the decimal point. + `precision = 1000`, for example, will show 3 decimal places (eg: `0.999`). + `precision = 2` will show multiples of `0.5`; precision = 5 will show multiples of `0.2` and so on: + `precision = n` will show multiples of `1/n` * `number:` An integer containing the RGB value of the color used to draw the text. * `world_pos`: World position of the waypoint. +* `offset`: offset in pixels from position. +* `alignment`: The alignment of the waypoint. + +### `image_waypoint` + +Same as `image`, but does not accept a `position`; the position is instead determined by `world_pos`, the world position of the waypoint. +* `scale`: The scale of the image, with 1 being the original texture size. + Only the X coordinate scale is used (positive values). + Negative values represent that percentage of the screen it + should take; e.g. `x=-100` means 100% (width). +* `text`: The name of the texture that is displayed. +* `alignment`: The alignment of the image. +* `world_pos`: World position of the waypoint. +* `offset`: offset in pixels from position. diff --git a/src/client/hud.cpp b/src/client/hud.cpp index 37de6640b..56763e7e4 100644 --- a/src/client/hud.cpp +++ b/src/client/hud.cpp @@ -272,6 +272,25 @@ void Hud::drawItems(v2s32 upperleftpos, v2s32 screen_offset, s32 itemcount, } } +// Calculates screen position of waypoint. Returns true if waypoint is visible (in front of the player), else false. +bool Hud::calculateScreenPos(const v3s16 &camera_offset, HudElement *e, v2s32 *pos) +{ + v3f w_pos = e->world_pos * BS; + scene::ICameraSceneNode* camera = + RenderingEngine::get_scene_manager()->getActiveCamera(); + w_pos -= intToFloat(camera_offset, BS); + core::matrix4 trans = camera->getProjectionMatrix(); + trans *= camera->getViewMatrix(); + f32 transformed_pos[4] = { w_pos.X, w_pos.Y, w_pos.Z, 1.0f }; + trans.multiplyWith1x4Matrix(transformed_pos); + if (transformed_pos[3] < 0) + return false; + f32 zDiv = transformed_pos[3] == 0.0f ? 1.0f : + core::reciprocal(transformed_pos[3]); + pos->X = m_screensize.X * (0.5 * transformed_pos[0] * zDiv + 0.5); + pos->Y = m_screensize.Y * (0.5 - transformed_pos[1] * zDiv * 0.5); + return true; +} void Hud::drawLuaElements(const v3s16 &camera_offset) { @@ -299,28 +318,6 @@ void Hud::drawLuaElements(const v3s16 &camera_offset) v2s32 pos(floor(e->pos.X * (float) m_screensize.X + 0.5), floor(e->pos.Y * (float) m_screensize.Y + 0.5)); switch (e->type) { - case HUD_ELEM_IMAGE: { - video::ITexture *texture = tsrc->getTexture(e->text); - if (!texture) - continue; - - const video::SColor color(255, 255, 255, 255); - const video::SColor colors[] = {color, color, color, color}; - core::dimension2di imgsize(texture->getOriginalSize()); - v2s32 dstsize(imgsize.Width * e->scale.X, - imgsize.Height * e->scale.Y); - if (e->scale.X < 0) - dstsize.X = m_screensize.X * (e->scale.X * -0.01); - if (e->scale.Y < 0) - dstsize.Y = m_screensize.Y * (e->scale.Y * -0.01); - v2s32 offset((e->align.X - 1.0) * dstsize.X / 2, - (e->align.Y - 1.0) * dstsize.Y / 2); - core::rect rect(0, 0, dstsize.X, dstsize.Y); - rect += pos + offset + v2s32(e->offset.X, e->offset.Y); - draw2DImageFilterScaled(driver, texture, rect, - core::rect(core::position2d(0,0), imgsize), - NULL, colors, true); - break; } case HUD_ELEM_TEXT: { video::SColor color(255, (e->number >> 16) & 0xFF, (e->number >> 8) & 0xFF, @@ -343,34 +340,58 @@ void Hud::drawLuaElements(const v3s16 &camera_offset) inv, e->item, e->dir); break; } case HUD_ELEM_WAYPOINT: { - v3f p_pos = player->getPosition() / BS; - v3f w_pos = e->world_pos * BS; - float distance = std::floor(10 * p_pos.getDistanceFrom(e->world_pos)) / - 10.0f; - scene::ICameraSceneNode* camera = - RenderingEngine::get_scene_manager()->getActiveCamera(); - w_pos -= intToFloat(camera_offset, BS); - core::matrix4 trans = camera->getProjectionMatrix(); - trans *= camera->getViewMatrix(); - f32 transformed_pos[4] = { w_pos.X, w_pos.Y, w_pos.Z, 1.0f }; - trans.multiplyWith1x4Matrix(transformed_pos); - if (transformed_pos[3] < 0) + if (!calculateScreenPos(camera_offset, e, &pos)) break; - f32 zDiv = transformed_pos[3] == 0.0f ? 1.0f : - core::reciprocal(transformed_pos[3]); - pos.X = m_screensize.X * (0.5 * transformed_pos[0] * zDiv + 0.5); - pos.Y = m_screensize.Y * (0.5 - transformed_pos[1] * zDiv * 0.5); + v3f p_pos = player->getPosition() / BS; + pos += v2s32(e->offset.X, e->offset.Y); video::SColor color(255, (e->number >> 16) & 0xFF, (e->number >> 8) & 0xFF, (e->number >> 0) & 0xFF); - core::rect size(0, 0, 200, 2 * text_height); std::wstring text = unescape_translate(utf8_to_wide(e->name)); - font->draw(text.c_str(), size + pos, color); - std::ostringstream os; - os << distance << e->text; - text = unescape_translate(utf8_to_wide(os.str())); - pos.Y += text_height; - font->draw(text.c_str(), size + pos, color); + const std::string &unit = e->text; + // waypoints reuse the item field to store precision, item = precision + 1 + u32 item = e->item; + float precision = (item == 0) ? 10.0f : (item - 1.f); + bool draw_precision = precision > 0; + + core::rect bounds(0, 0, font->getDimension(text.c_str()).Width, (draw_precision ? 2:1) * text_height); + pos.Y += (e->align.Y - 1.0) * bounds.getHeight() / 2; + bounds += pos; + font->draw(text.c_str(), bounds + v2s32((e->align.X - 1.0) * bounds.getWidth() / 2, 0), color); + if (draw_precision) { + std::ostringstream os; + float distance = std::floor(precision * p_pos.getDistanceFrom(e->world_pos)) / precision; + os << distance << unit; + text = unescape_translate(utf8_to_wide(os.str())); + bounds.LowerRightCorner.X = bounds.UpperLeftCorner.X + font->getDimension(text.c_str()).Width; + font->draw(text.c_str(), bounds + v2s32((e->align.X - 1.0f) * bounds.getWidth() / 2, text_height), color); + } + break; } + case HUD_ELEM_IMAGE_WAYPOINT: { + if (!calculateScreenPos(camera_offset, e, &pos)) + break; + } + case HUD_ELEM_IMAGE: { + video::ITexture *texture = tsrc->getTexture(e->text); + if (!texture) + continue; + + const video::SColor color(255, 255, 255, 255); + const video::SColor colors[] = {color, color, color, color}; + core::dimension2di imgsize(texture->getOriginalSize()); + v2s32 dstsize(imgsize.Width * e->scale.X, + imgsize.Height * e->scale.Y); + if (e->scale.X < 0) + dstsize.X = m_screensize.X * (e->scale.X * -0.01); + if (e->scale.Y < 0) + dstsize.Y = m_screensize.Y * (e->scale.Y * -0.01); + v2s32 offset((e->align.X - 1.0) * dstsize.X / 2, + (e->align.Y - 1.0) * dstsize.Y / 2); + core::rect rect(0, 0, dstsize.X, dstsize.Y); + rect += pos + offset + v2s32(e->offset.X, e->offset.Y); + draw2DImageFilterScaled(driver, texture, rect, + core::rect(core::position2d(0,0), imgsize), + NULL, colors, true); break; } default: infostream << "Hud::drawLuaElements: ignoring drawform " << e->type << diff --git a/src/client/hud.h b/src/client/hud.h index d9b5e0686..cab115990 100644 --- a/src/client/hud.h +++ b/src/client/hud.h @@ -81,6 +81,7 @@ public: void drawLuaElements(const v3s16 &camera_offset); private: + bool calculateScreenPos(const v3s16 &camera_offset, HudElement *e, v2s32 *pos); void drawStatbar(v2s32 pos, u16 corner, u16 drawdir, const std::string &texture, s32 count, v2s32 offset, v2s32 size = v2s32()); diff --git a/src/hud.cpp b/src/hud.cpp index 7711e3a4a..39625b5fd 100644 --- a/src/hud.cpp +++ b/src/hud.cpp @@ -27,6 +27,7 @@ const struct EnumString es_HudElementType[] = {HUD_ELEM_STATBAR, "statbar"}, {HUD_ELEM_INVENTORY, "inventory"}, {HUD_ELEM_WAYPOINT, "waypoint"}, + {HUD_ELEM_IMAGE_WAYPOINT, "image_waypoint"}, {0, NULL}, }; diff --git a/src/hud.h b/src/hud.h index 23f189dff..b0977c6a4 100644 --- a/src/hud.h +++ b/src/hud.h @@ -61,6 +61,7 @@ enum HudElementType { HUD_ELEM_STATBAR = 2, HUD_ELEM_INVENTORY = 3, HUD_ELEM_WAYPOINT = 4, + HUD_ELEM_IMAGE_WAYPOINT = 5 }; enum HudElementStat { diff --git a/src/script/common/c_content.cpp b/src/script/common/c_content.cpp index c8cd7539f..ff9ceec6d 100644 --- a/src/script/common/c_content.cpp +++ b/src/script/common/c_content.cpp @@ -1850,7 +1850,11 @@ void read_hud_element(lua_State *L, HudElement *elem) elem->name = getstringfield_default(L, 2, "name", ""); elem->text = getstringfield_default(L, 2, "text", ""); elem->number = getintfield_default(L, 2, "number", 0); - elem->item = getintfield_default(L, 2, "item", 0); + if (elem->type == HUD_ELEM_WAYPOINT) + // waypoints reuse the item field to store precision, item = precision + 1 + elem->item = getintfield_default(L, 2, "precision", -1) + 1; + else + elem->item = getintfield_default(L, 2, "item", 0); elem->dir = getintfield_default(L, 2, "direction", 0); elem->z_index = MYMAX(S16_MIN, MYMIN(S16_MAX, getintfield_default(L, 2, "z_index", 0)));