mirror of
https://github.com/nunuhara/xsystem4.git
synced 2026-10-08 22:59:57 +03:00
kichikuou
554f742a00
DrawField is a variant of DrawDungeon. Unlike the first-person perspective of DrawDungeon, DrawField uses a third-person, bird's-eye view camera. Key features include: - Character Rendering: A new system to render up to 256 billboarded sprites (characters, enemies, etc.) in the 3D world. The renderer supports controlling position, sprite animation, and visibility for each character. - DrawField HLL API: Functions for loading assets, managing characters, and manipulating dungeon properties like door locks. - Renderer: The core renderer is updated to support the DrawField mode. This includes disabling fog, handling sprite sheets via UV manipulation, and rendering ceilings as billboards. - Map: The 2D map has been updated to reflect the DrawField style, including colored door lock indicators.
47 lines
1.6 KiB
GLSL
47 lines
1.6 KiB
GLSL
/* Copyright (C) 2021 kichikuou <KichikuouChrome@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General 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
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* along with this program; if not, see <http://gnu.org/licenses/>.
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*/
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uniform sampler2D tex;
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uniform sampler2D light_texture;
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uniform bool use_lightmap;
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uniform float alpha_mod;
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uniform bool use_fog;
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in float dist;
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in vec2 tex_coord;
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out vec4 frag_color;
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const float FOG_MAX_DIST = 12.0;
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const vec3 FOG_COLOR = vec3(0.0, 0.0, 0.0);
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void main() {
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vec4 texel = texture(tex, tex_coord);
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float light_factor = 1.0;
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if (use_lightmap) {
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light_factor = texture(light_texture, tex_coord).a;
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}
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if (use_fog) {
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float fog_factor = (FOG_MAX_DIST - dist) / FOG_MAX_DIST;
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fog_factor = clamp(fog_factor, 0.3, 1.0);
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frag_color = vec4(mix(FOG_COLOR, texel.rgb * light_factor, fog_factor), texel.a * alpha_mod);
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} else {
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if (texel.a < 0.01) {
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discard;
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}
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frag_color = vec4(texel.rgb * light_factor, texel.a * alpha_mod);
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}
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}
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