83 lines
4.0 KiB
C
83 lines
4.0 KiB
C
/*
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* This file is part of the Minecraft Overviewer.
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*
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* Minecraft Overviewer is free software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or (at
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* your option) any later version.
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*
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* Minecraft Overviewer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the Overviewer. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "../block_class.h"
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#include "../mc_id.h"
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#include "../overviewer.h"
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typedef struct {
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float opacity;
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} PrimitiveEdgeLines;
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static int
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edge_lines_start(void* data, RenderState* state, PyObject* support) {
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PrimitiveEdgeLines* self = (PrimitiveEdgeLines*)data;
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if (!render_mode_parse_option(support, "opacity", "f", &(self->opacity)))
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return 1;
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return 0;
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}
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static void
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edge_lines_draw(void* data, RenderState* state, PyObject* src, PyObject* mask, PyObject* mask_light) {
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PrimitiveEdgeLines* self = (PrimitiveEdgeLines*)data;
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/* Draw some edge lines! */
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if (block_class_is_subset(state->block, (mc_block_t[]){block_stone_slab, block_snow_layer}, 2) || !is_transparent(state->block)) {
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Imaging img_i = imaging_python_to_c(state->img);
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unsigned char ink[] = {0, 0, 0, 255 * self->opacity};
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unsigned short side_block;
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int x = state->x, y = state->y, z = state->z;
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int increment = 0;
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if (block_class_is_subset(state->block, (mc_block_t[]){block_wooden_slab, block_stone_slab}, 2) && ((state->block_data & 0x8) == 0)) // half-steps BUT no upsidown half-steps
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increment = 6;
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else if (block_class_is_subset(state->block, (mc_block_t[]){block_snow_layer, block_unpowered_repeater, block_powered_repeater}, 3)) // snow, redstone repeaters (on and off)
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increment = 9;
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/* +X side */
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side_block = get_data(state, BLOCKS, x + 1, y, z);
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if (side_block != state->block && (is_transparent(side_block) || render_mode_hidden(state->rendermode, x + 1, y, z)) &&
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/* WARNING: ugly special case approaching */
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/* if the block is a slab and the side block is a stair don't draw anything, it can give very ugly results */
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!(block_class_is_subset(state->block, (mc_block_t[]){block_wooden_slab, block_stone_slab}, 2) && (block_class_is_subset(side_block, block_class_stair, block_class_stair_len)))) {
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ImagingDrawLine(img_i, state->imgx + 12, state->imgy + 1 + increment, state->imgx + 22 + 1, state->imgy + 5 + 1 + increment, &ink, 1);
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ImagingDrawLine(img_i, state->imgx + 12, state->imgy + increment, state->imgx + 22 + 1, state->imgy + 5 + increment, &ink, 1);
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}
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/* -Z side */
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side_block = get_data(state, BLOCKS, x, y, z - 1);
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if (side_block != state->block && (is_transparent(side_block) || render_mode_hidden(state->rendermode, x, y, z - 1)) &&
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/* WARNING: ugly special case approaching */
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/* if the block is a slab and the side block is a stair don't draw anything, it can give very ugly results */
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!(
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block_class_is_subset(state->block, (mc_block_t[]){block_stone_slab, block_wooden_slab}, 2) && (block_class_is_subset(side_block, block_class_stair, block_class_stair_len)))) {
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ImagingDrawLine(img_i, state->imgx, state->imgy + 6 + 1 + increment, state->imgx + 12 + 1, state->imgy + 1 + increment, &ink, 1);
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ImagingDrawLine(img_i, state->imgx, state->imgy + 6 + increment, state->imgx + 12 + 1, state->imgy + increment, &ink, 1);
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}
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}
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}
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RenderPrimitiveInterface primitive_edge_lines = {
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"edge-lines",
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sizeof(PrimitiveEdgeLines),
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edge_lines_start,
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NULL,
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NULL,
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NULL,
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edge_lines_draw,
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};
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