ui_node_item.c

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/*
Copyright (C) 2002-2010 UFO: Alien Invasion.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

#include "../ui_nodes.h"
#include "../ui_parse.h"
#include "ui_node_model.h"
#include "ui_node_item.h"
#include "ui_node_container.h"
#include "ui_node_abstractnode.h"

#include "../../client.h"
#include "../../cl_game.h"
#include "../../renderer/r_draw.h"

#define EXTRADATA(node) UI_EXTRADATA(node, modelExtraData_t)

static void UI_ItemNodeDraw (uiNode_t *node)
{
    const objDef_t *od;
    const char* ref = UI_GetReferenceString(node, EXTRADATA(node).model);
    vec2_t pos;

    if (!ref || ref[0] == '\0')
        return;

    UI_GetNodeAbsPos(node, pos);
    R_CleanupDepthBuffer(pos[0], pos[1], node->size[0], node->size[1]);

    od = INVSH_GetItemByIDSilent(ref);
    if (od) {
        item_t item = {1, NULL, NULL, 0, 0}; /* 1 so it's not reddish; fake item anyway */
        const vec4_t color = {1, 1, 1, 1};
        vec3_t pos;
        item.t = INVSH_GetItemByIDX(od->idx);

        if (EXTRADATA(node).containerLike || INV_IsArmour(item.t)) {
            /* We position the model of the item ourself (in the middle of the item
             * node). See the "-1, -1" parameter of UI_DrawItem. */
            UI_GetNodeAbsPos(node, pos);
            pos[0] += node->size[0] / 2.0;
            pos[1] += node->size[1] / 2.0;
            pos[2] = 0;
            UI_DrawItem(node, pos, &item, -1, -1, EXTRADATA(node).scale, color);
        } else {
            UI_DrawModelNode(node, GAME_GetModelForItem(item.t, NULL));
        }
    } else {
        GAME_DisplayItemInfo(node, ref);
    }
}

static const value_t properties[] = {
    /* Display an item like a container node do it */
    {"containerlike", V_BOOL, UI_EXTRADATA_OFFSETOF(modelExtraData_t, containerLike), MEMBER_SIZEOF(modelExtraData_t, containerLike)},

    {NULL, V_NULL, 0, 0}
};

void UI_RegisterItemNode (uiBehaviour_t *behaviour)
{
    behaviour->name = "item";
    behaviour->properties = properties;
    behaviour->extends = "model";
    behaviour->draw = UI_ItemNodeDraw;
}