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minetest/src/hud.cpp

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/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2010-2013 blue42u, Jonathon Anderson <anderjon@umail.iu.edu>
Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "hud.h"
#include "main.h"
#include "settings.h"
#include "util/numeric.h"
#include "log.h"
#include "gamedef.h"
#include "itemdef.h"
#include "inventory.h"
#include "tile.h"
#include "localplayer.h"
#include "camera.h"
#include "game.h" // CameraModes
#include <IGUIStaticText.h>
Hud::Hud(video::IVideoDriver *driver, scene::ISceneManager* smgr,
gui::IGUIEnvironment* guienv, gui::IGUIFont *font,
u32 text_height, IGameDef *gamedef,
LocalPlayer *player, Inventory *inventory) {
this->driver = driver;
this->smgr = smgr;
this->guienv = guienv;
this->font = font;
this->text_height = text_height;
this->gamedef = gamedef;
this->player = player;
this->inventory = inventory;
screensize = v2u32(0, 0);
displaycenter = v2s32(0, 0);
hotbar_imagesize = 48;
tsrc = gamedef->getTextureSource();
v3f crosshair_color = g_settings->getV3F("crosshair_color");
u32 cross_r = rangelim(myround(crosshair_color.X), 0, 255);
u32 cross_g = rangelim(myround(crosshair_color.Y), 0, 255);
u32 cross_b = rangelim(myround(crosshair_color.Z), 0, 255);
u32 cross_a = rangelim(g_settings->getS32("crosshair_alpha"), 0, 255);
crosshair_argb = video::SColor(cross_a, cross_r, cross_g, cross_b);
v3f selectionbox_color = g_settings->getV3F("selectionbox_color");
u32 sbox_r = rangelim(myround(selectionbox_color.X), 0, 255);
u32 sbox_g = rangelim(myround(selectionbox_color.Y), 0, 255);
u32 sbox_b = rangelim(myround(selectionbox_color.Z), 0, 255);
selectionbox_argb = video::SColor(255, sbox_r, sbox_g, sbox_b);
use_crosshair_image = tsrc->isKnownSourceImage("crosshair.png");
hotbar_image = "";
use_hotbar_image = false;
hotbar_selected_image = "";
use_hotbar_selected_image = false;
}
//NOTE: selectitem = 0 -> no selected; selectitem 1-based
void Hud::drawItem(v2s32 upperleftpos, s32 imgsize, s32 itemcount,
InventoryList *mainlist, u16 selectitem, u16 direction)
{
s32 padding = imgsize / 12;
s32 height = imgsize + padding * 2;
s32 width = itemcount * (imgsize + padding * 2);
if (direction == HUD_DIR_TOP_BOTTOM || direction == HUD_DIR_BOTTOM_TOP) {
width = imgsize + padding * 2;
height = itemcount * (imgsize + padding * 2);
}
s32 fullimglen = imgsize + padding * 2;
// Position of upper left corner of bar
v2s32 pos = upperleftpos;
// Draw background color
/*core::rect<s32> barrect(0,0,width,height);
barrect += pos;
video::SColor bgcolor(255,128,128,128);
driver->draw2DRectangle(bgcolor, barrect, NULL);*/
core::rect<s32> imgrect(0, 0, imgsize, imgsize);
const video::SColor hbar_color(255, 255, 255, 255);
const video::SColor hbar_colors[] = {hbar_color, hbar_color, hbar_color, hbar_color};
if (hotbar_image != player->hotbar_image) {
hotbar_image = player->hotbar_image;
if (hotbar_image != "")
use_hotbar_image = tsrc->isKnownSourceImage(hotbar_image);
else
use_hotbar_image = false;
}
if (hotbar_selected_image != player->hotbar_selected_image) {
hotbar_selected_image = player->hotbar_selected_image;
if (hotbar_selected_image != "")
use_hotbar_selected_image = tsrc->isKnownSourceImage(hotbar_selected_image);
else
use_hotbar_selected_image = false;
}
if (use_hotbar_image) {
core::rect<s32> imgrect2(-padding/2, -padding/2, width+padding/2, height+padding/2);
core::rect<s32> rect2 = imgrect2 + pos;
video::ITexture *texture = tsrc->getTexture(hotbar_image);
core::dimension2di imgsize(texture->getOriginalSize());
driver->draw2DImage(texture, rect2,
core::rect<s32>(core::position2d<s32>(0,0), imgsize),
NULL, hbar_colors, true);
}
for (s32 i = 0; i < itemcount; i++)
{
const ItemStack &item = mainlist->getItem(i);
v2s32 steppos;
switch (direction) {
case HUD_DIR_RIGHT_LEFT:
steppos = v2s32(-(padding + i * fullimglen), padding);
break;
case HUD_DIR_TOP_BOTTOM:
steppos = v2s32(padding, padding + i * fullimglen);
break;
case HUD_DIR_BOTTOM_TOP:
steppos = v2s32(padding, -(padding + i * fullimglen));
break;
default:
steppos = v2s32(padding + i * fullimglen, padding);
}
core::rect<s32> rect = imgrect + pos + steppos;
if (selectitem == i + 1) {
if (use_hotbar_selected_image) {
core::rect<s32> imgrect2(-padding*2, -padding*2, height, height);
rect = imgrect2 + pos + steppos;
video::ITexture *texture = tsrc->getTexture(hotbar_selected_image);
core::dimension2di imgsize(texture->getOriginalSize());
driver->draw2DImage(texture, rect,
core::rect<s32>(core::position2d<s32>(0,0), imgsize),
NULL, hbar_colors, true);
rect = imgrect + pos + steppos;
} else {
rect = imgrect + pos + steppos;
video::SColor c_outside(255,255,0,0);
//video::SColor c_outside(255,0,0,0);
//video::SColor c_inside(255,192,192,192);
s32 x1 = rect.UpperLeftCorner.X;
s32 y1 = rect.UpperLeftCorner.Y;
s32 x2 = rect.LowerRightCorner.X;
s32 y2 = rect.LowerRightCorner.Y;
// Black base borders
driver->draw2DRectangle(c_outside,
core::rect<s32>(
v2s32(x1 - padding, y1 - padding),
v2s32(x2 + padding, y1)
), NULL);
driver->draw2DRectangle(c_outside,
core::rect<s32>(
v2s32(x1 - padding, y2),
v2s32(x2 + padding, y2 + padding)
), NULL);
driver->draw2DRectangle(c_outside,
core::rect<s32>(
v2s32(x1 - padding, y1),
v2s32(x1, y2)
), NULL);
driver->draw2DRectangle(c_outside,
core::rect<s32>(
v2s32(x2, y1),
v2s32(x2 + padding, y2)
), NULL);
/*// Light inside borders
driver->draw2DRectangle(c_inside,
core::rect<s32>(
v2s32(x1 - padding/2, y1 - padding/2),
v2s32(x2 + padding/2, y1)
), NULL);
driver->draw2DRectangle(c_inside,
core::rect<s32>(
v2s32(x1 - padding/2, y2),
v2s32(x2 + padding/2, y2 + padding/2)
), NULL);
driver->draw2DRectangle(c_inside,
core::rect<s32>(
v2s32(x1 - padding/2, y1),
v2s32(x1, y2)
), NULL);
driver->draw2DRectangle(c_inside,
core::rect<s32>(
v2s32(x2, y1),
v2s32(x2 + padding/2, y2)
), NULL);
*/
}
}
video::SColor bgcolor2(128, 0, 0, 0);
if (!use_hotbar_image)
driver->draw2DRectangle(bgcolor2, rect, NULL);
drawItemStack(driver, font, item, rect, NULL, gamedef);
}
}
void Hud::drawLuaElements() {
for (size_t i = 0; i != player->hud.size(); i++) {
HudElement *e = player->hud[i];
if (!e)
continue;
v2s32 pos(e->pos.X * screensize.X, e->pos.Y * screensize.Y);
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 = screensize.X * (e->scale.X * -0.01);
if (e->scale.Y < 0)
dstsize.Y = 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<s32> rect(0, 0, dstsize.X, dstsize.Y);
rect += pos + offset + v2s32(e->offset.X, e->offset.Y);
driver->draw2DImage(texture, rect,
core::rect<s32>(core::position2d<s32>(0,0), imgsize),
NULL, colors, true);
break; }
case HUD_ELEM_TEXT: {
video::SColor color(255, (e->number >> 16) & 0xFF,
(e->number >> 8) & 0xFF,
(e->number >> 0) & 0xFF);
core::rect<s32> size(0, 0, e->scale.X, text_height * e->scale.Y);
std::wstring text = narrow_to_wide(e->text);
core::dimension2d<u32> textsize = font->getDimension(text.c_str());
v2s32 offset((e->align.X - 1.0) * (textsize.Width / 2),
(e->align.Y - 1.0) * (textsize.Height / 2));
v2s32 offs(e->offset.X, e->offset.Y);
font->draw(text.c_str(), size + pos + offset + offs, color);
break; }
case HUD_ELEM_STATBAR: {
v2s32 offs(e->offset.X, e->offset.Y);
drawStatbar(pos, HUD_CORNER_UPPER, e->dir, e->text, e->number, offs);
break; }
case HUD_ELEM_INVENTORY: {
InventoryList *inv = inventory->getList(e->text);
drawItem(pos, hotbar_imagesize, e->number, 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 = floor(10 * p_pos.getDistanceFrom(e->world_pos)) / 10;
scene::ICameraSceneNode* camera = smgr->getActiveCamera();
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)
break;
f32 zDiv = transformed_pos[3] == 0.0f ? 1.0f :
core::reciprocal(transformed_pos[3]);
pos.X = screensize.X * (0.5 * transformed_pos[0] * zDiv + 0.5);
pos.Y = screensize.Y * (0.5 - transformed_pos[1] * zDiv * 0.5);
video::SColor color(255, (e->number >> 16) & 0xFF,
(e->number >> 8) & 0xFF,
(e->number >> 0) & 0xFF);
core::rect<s32> size(0, 0, 200, 2 * text_height);
std::wstring text = narrow_to_wide(e->name);
font->draw(text.c_str(), size + pos, color);
std::ostringstream os;
os<<distance<<e->text;
text = narrow_to_wide(os.str());
pos.Y += text_height;
font->draw(text.c_str(), size + pos, color);
break; }
default:
infostream << "Hud::drawLuaElements: ignoring drawform " << e->type <<
" of hud element ID " << i << " due to unrecognized type" << std::endl;
}
}
}
void Hud::drawStatbar(v2s32 pos, u16 corner, u16 drawdir, std::string texture, s32 count, v2s32 offset) {
const video::SColor color(255, 255, 255, 255);
const video::SColor colors[] = {color, color, color, color};
video::ITexture *stat_texture = tsrc->getTexture(texture);
if (!stat_texture)
return;
core::dimension2di srcd(stat_texture->getOriginalSize());
v2s32 p = pos;
if (corner & HUD_CORNER_LOWER)
p -= srcd.Height;
p += offset;
v2s32 steppos;
switch (drawdir) {
case HUD_DIR_RIGHT_LEFT:
steppos = v2s32(-1, 0);
break;
case HUD_DIR_TOP_BOTTOM:
steppos = v2s32(0, 1);
break;
case HUD_DIR_BOTTOM_TOP:
steppos = v2s32(0, -1);
break;
default:
steppos = v2s32(1, 0);
}
steppos.X *= srcd.Width;
steppos.Y *= srcd.Height;
for (s32 i = 0; i < count / 2; i++)
{
core::rect<s32> srcrect(0, 0, srcd.Width, srcd.Height);
core::rect<s32> dstrect(srcrect);
dstrect += p;
driver->draw2DImage(stat_texture, dstrect, srcrect, NULL, colors, true);
p += steppos;
}
if (count % 2 == 1)
{
core::rect<s32> srcrect(0, 0, srcd.Width / 2, srcd.Height);
core::rect<s32> dstrect(srcrect);
dstrect += p;
driver->draw2DImage(stat_texture, dstrect, srcrect, NULL, colors, true);
}
}
void Hud::drawHotbar(v2s32 centerlowerpos, s32 halfheartcount, u16 playeritem, s32 breath) {
InventoryList *mainlist = inventory->getList("main");
if (mainlist == NULL) {
//silently ignore this we may not be initialized completely
return;
}
s32 hotbar_itemcount = player->hud_hotbar_itemcount;
s32 padding = hotbar_imagesize / 12;
s32 width = hotbar_itemcount * (hotbar_imagesize + padding * 2);
v2s32 pos = centerlowerpos - v2s32(width / 2, hotbar_imagesize + padding * 3);
if (player->hud_flags & HUD_FLAG_HOTBAR_VISIBLE)
drawItem(pos, hotbar_imagesize, hotbar_itemcount, mainlist, playeritem + 1, 0);
if (player->hud_flags & HUD_FLAG_HEALTHBAR_VISIBLE)
drawStatbar(pos - v2s32(0, 4), HUD_CORNER_LOWER, HUD_DIR_LEFT_RIGHT,
"heart.png", halfheartcount, v2s32(0, 0));
if (player->hud_flags & HUD_FLAG_BREATHBAR_VISIBLE && breath <= 10)
drawStatbar(pos - v2s32(-180, 4), HUD_CORNER_LOWER, HUD_DIR_LEFT_RIGHT,
"bubble.png", breath*2, v2s32(0, 0));
}
void Hud::drawCrosshair() {
if (!(player->hud_flags & HUD_FLAG_CROSSHAIR_VISIBLE) ||
player->camera_mode == CAMERA_MODE_THIRD_FRONT)
return;
if (use_crosshair_image) {
video::ITexture *crosshair = tsrc->getTexture("crosshair.png");
v2u32 size = crosshair->getOriginalSize();
v2s32 lsize = v2s32(displaycenter.X - (size.X / 2),
displaycenter.Y - (size.Y / 2));
driver->draw2DImage(crosshair, lsize,
core::rect<s32>(0, 0, size.X, size.Y),
0, crosshair_argb, true);
} else {
driver->draw2DLine(displaycenter - v2s32(10, 0),
displaycenter + v2s32(10, 0), crosshair_argb);
driver->draw2DLine(displaycenter - v2s32(0, 10),
displaycenter + v2s32(0, 10), crosshair_argb);
}
}
void Hud::drawSelectionBoxes(std::vector<aabb3f> &hilightboxes) {
for (std::vector<aabb3f>::const_iterator
i = hilightboxes.begin();
i != hilightboxes.end(); i++) {
driver->draw3DBox(*i, selectionbox_argb);
}
}
void Hud::resizeHotbar() {
if (screensize.Y <= 800)
hotbar_imagesize = 32;
else if (screensize.Y <= 1280)
hotbar_imagesize = 48;
else
hotbar_imagesize = 64;
}
void drawItemStack(video::IVideoDriver *driver,
gui::IGUIFont *font,
const ItemStack &item,
const core::rect<s32> &rect,
const core::rect<s32> *clip,
IGameDef *gamedef)
{
if(item.empty())
return;
const ItemDefinition &def = item.getDefinition(gamedef->idef());
video::ITexture *texture = gamedef->idef()->getInventoryTexture(def.name, gamedef);
// Draw the inventory texture
if(texture != NULL)
{
const video::SColor color(255,255,255,255);
const video::SColor colors[] = {color,color,color,color};
driver->draw2DImage(texture, rect,
core::rect<s32>(core::position2d<s32>(0,0),
core::dimension2di(texture->getOriginalSize())),
clip, colors, true);
}
if(def.type == ITEM_TOOL && item.wear != 0)
{
// Draw a progressbar
float barheight = rect.getHeight()/16;
float barpad_x = rect.getWidth()/16;
float barpad_y = rect.getHeight()/16;
core::rect<s32> progressrect(
rect.UpperLeftCorner.X + barpad_x,
rect.LowerRightCorner.Y - barpad_y - barheight,
rect.LowerRightCorner.X - barpad_x,
rect.LowerRightCorner.Y - barpad_y);
// Shrink progressrect by amount of tool damage
float wear = item.wear / 65535.0;
int progressmid =
wear * progressrect.UpperLeftCorner.X +
(1-wear) * progressrect.LowerRightCorner.X;
// Compute progressbar color
// wear = 0.0: green
// wear = 0.5: yellow
// wear = 1.0: red
video::SColor color(255,255,255,255);
int wear_i = MYMIN(floor(wear * 600), 511);
wear_i = MYMIN(wear_i + 10, 511);
if(wear_i <= 255)
color.set(255, wear_i, 255, 0);
else
color.set(255, 255, 511-wear_i, 0);
core::rect<s32> progressrect2 = progressrect;
progressrect2.LowerRightCorner.X = progressmid;
driver->draw2DRectangle(color, progressrect2, clip);
color = video::SColor(255,0,0,0);
progressrect2 = progressrect;
progressrect2.UpperLeftCorner.X = progressmid;
driver->draw2DRectangle(color, progressrect2, clip);
}
if(font != NULL && item.count >= 2)
{
// Get the item count as a string
std::string text = itos(item.count);
v2u32 dim = font->getDimension(narrow_to_wide(text).c_str());
v2s32 sdim(dim.X,dim.Y);
core::rect<s32> rect2(
/*rect.UpperLeftCorner,
core::dimension2d<u32>(rect.getWidth(), 15)*/
rect.LowerRightCorner - sdim,
sdim
);
video::SColor bgcolor(128,0,0,0);
driver->draw2DRectangle(bgcolor, rect2, clip);
video::SColor color(255,255,255,255);
font->draw(text.c_str(), rect2, color, false, false, clip);
}
}
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