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First cut of pulling out the relevant parts of my original game to make a little framework.

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Zed A. Shaw 2026-03-22 10:37:45 -04:00
commit 6a0c9e8d46
177 changed files with 18197 additions and 0 deletions
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79
assets/shaders/flame_trash.frag Normal file
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#version 120
uniform vec2 u_resolution;
uniform float u_time;
uniform sampler2D source;
uniform float u_mouse;
uniform float value = 0.2;
uniform int octaves=8;
float random (in vec2 st) {
return fract(sin(dot(st.xy,
vec2(12.9898,78.233)))*
43758.5453123);
}
float noise(in vec2 st) {
vec2 i = floor(st);
vec2 f = fract(st);
float a = random(i);
float b = random(i + vec2(1.0, 0.0));
float c = random(i + vec2(0.0, 1.0));
float d = random(i + vec2(1.0, 1.0));
vec2 u = f * f * (3.0 - 2.0 * f);
return mix(a, b, u.x) +
(c - a) * u.y * (1.0 - u.x) +
(d - b) * u.x * u.y;
}
float fbm(in vec2 st) {
float v = 0.0;
float a = 0.5;
vec2 shift = vec2(100.0);
mat2 rot = mat2(cos(0.5), sin(0.5),
-sin(0.5), cos(0.5));
for(int i = 0; i < octaves; i++) {
v += a * noise(st);
st = rot * st * 2.0 + shift;
a *= 0.5;
}
return v;
}
void main() {
vec2 st = gl_FragCoord.xy/u_resolution.xy * 3.0;
vec3 color = vec3(0.0);
float speed = u_time * 10.0;
float value = 0.8; // cos(u_time) * cos(u_time);
vec2 q = vec2(0.0);
q.x = fbm(st + 0.00 * speed);
q.y = fbm(st + vec2(1.0));
vec2 r = vec2(0,0);
r.x += fbm( st + 1.0*q + vec2(1.0, 0.0)+ 0.15* speed );
r.y += fbm( st + 1.0*q + vec2(-1.0, 0.0)+ 0.126* speed);
float f = fbm(st * r);
color = mix(vec3(0.666667,0.619608, 0.122777),
vec3(0.666667,0.666667,0.498039),
clamp((f*f)*4.0,0.0,1.0));
color = mix(color,
vec3(0.666667, 0.122222, 0.0666667),
clamp(length(r.x), 0.0, 1.0));
color *= (f*f*f+0.5*f*f+0.6*f) * value;
vec4 pixel = texture2D(source, gl_TexCoord[0].xy);
float mask = color.r * pixel.a;
gl_FragColor = gl_Color * vec4(color, mask) + pixel;
}

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assets/shaders/lightning_attack.frag Normal file
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#version 120
uniform vec2 u_resolution;
uniform float u_time;
uniform sampler2D source;
uniform float u_mouse;
uniform float value = 0.2;
uniform int octaves=8;
float random (in vec2 st) {
return fract(sin(dot(st.xy,
vec2(12.9898,78.233)))*
43758.5453123);
}
float noise(in vec2 st) {
vec2 i = floor(st);
vec2 f = fract(st);
float a = random(i);
float b = random(i + vec2(1.0, 0.0));
float c = random(i + vec2(0.0, 1.0));
float d = random(i + vec2(1.0, 1.0));
vec2 u = f * f * (3.0 - 2.0 * f);
return mix(a, b, u.x) +
(c - a) * u.y * (1.0 - u.x) +
(d - b) * u.x * u.y;
}
float fbm(in vec2 st) {
float v = 0.0;
float a = 0.5;
vec2 shift = vec2(100.0);
mat2 rot = mat2(cos(0.5), sin(0.5),
-sin(0.5), cos(0.5));
for(int i = 0; i < octaves; i++) {
v += a * noise(st);
st = rot * st * 2.0 + shift;
a *= 0.5;
}
return v;
}
void main() {
vec2 st = gl_FragCoord.xy/u_resolution.xy * 3.0;
vec3 color = vec3(0.0);
float speed = u_time * 40.0;
float value = cos(u_time) * cos(u_time);
vec2 q = vec2(0.0);
q.x = fbm(st + 0.00 * speed);
q.y = fbm(st + vec2(1.0));
vec2 r = vec2(0,0);
r.x += fbm( st + 1.0*q + vec2(1.0, 0.0)+ 0.15* speed );
r.y += fbm( st + 1.0*q + vec2(-1.0, 0.0)+ 0.126* speed);
float f = fbm(st / r);
color = mix(vec3(0.122777,0.619608, 0.666667),
vec3(0.498039,0.666667,0.666667),
clamp((f*f)*4.0,0.0,1.0));
color = mix(color,
vec3(0.0666667, 0.122222, 0.666667),
clamp(length(r.x), 0.0, 1.0));
color *= (f*f*f+0.5*f*f+0.6*f) * value;
vec4 pixel = texture2D(source, gl_TexCoord[0].xy);
float mask = color.r * pixel.a;
gl_FragColor = gl_Color * vec4(color, mask) + pixel;
}

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assets/shaders/rayview_sprites.frag Normal file
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uniform sampler2D source;
uniform sampler2D bloom;
uniform vec2 offsetFactor;
uniform float darkness;
void main()
{
vec2 textureCoordinates = gl_TexCoord[0].xy;
vec4 color = vec4(0.0);
color += texture2D(source, textureCoordinates - 4.0 * offsetFactor) * 0.0162162162;
color += texture2D(source, textureCoordinates - 3.0 * offsetFactor) * 0.0540540541;
color += texture2D(source, textureCoordinates - 2.0 * offsetFactor) * 0.1216216216;
color += texture2D(source, textureCoordinates - offsetFactor) * 0.1945945946;
color += texture2D(source, textureCoordinates) * 0.2270270270;
color += texture2D(source, textureCoordinates + offsetFactor) * 0.1945945946;
color += texture2D(source, textureCoordinates + 2.0 * offsetFactor) * 0.1216216216;
color += texture2D(source, textureCoordinates + 3.0 * offsetFactor) * 0.0540540541;
color += texture2D(source, textureCoordinates + 4.0 * offsetFactor) * 0.0162162162;
vec4 sourceFragment = texture2D(source, gl_TexCoord[0].xy);
vec4 bloomFragment = texture2D(bloom, gl_TexCoord[0].xy);
float alpha = color.a;
gl_FragColor = (color + sourceFragment - bloomFragment) * darkness;
gl_FragColor.a = alpha;
}

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assets/shaders/ui_error.frag Normal file
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uniform vec2 u_resolution;
uniform vec2 u_mouse;
uniform float u_duration;
uniform float u_time;
uniform float u_time_end;
uniform sampler2D texture;
uniform bool is_shape;
void main() {
if(is_shape) {
vec4 color = vec4(1.0, 0.0, 0.0, 1.0);
gl_FragColor = gl_Color * color;
} else {
vec4 pixel = texture2D(texture, gl_TexCoord[0].xy);
vec4 color = vec4(1.0, 0.0, 0.0, 1.0);
gl_FragColor = gl_Color * color * pixel;
}
}

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assets/shaders/ui_shader.frag Normal file
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uniform vec2 u_resolution;
uniform vec2 u_mouse;
uniform float u_duration;
uniform float u_time;
uniform float u_time_end;
uniform sampler2D texture;
uniform bool is_shape;
uniform bool hover;
vec4 blink() {
if(hover) {
return vec4(0.95, 0.95, 1.0, 1.0);
} else {
float tick = (u_time_end - u_time) / u_duration;
float blink = mix(0.5, 1.0, tick);
return vec4(blink, blink, blink, 1.0);
}
}
void main() {
vec4 color = blink();
if(!is_shape) {
vec4 pixel = texture2D(texture, gl_TexCoord[0].xy);
color *= pixel;
}
gl_FragColor = gl_Color * color;
}

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assets/shaders/ui_shape_shader.frag Normal file
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uniform vec2 u_resolution;
uniform vec2 u_mouse;
uniform float u_duration;
uniform float u_time;
uniform float u_time_end;
void main() {
float tick = (u_time_end - u_time) / u_duration;
float blink = smoothstep(1.0, 0.5, tick);
vec4 color = vec4(blink, blink, blink, 1.0);
gl_FragColor = gl_Color * color;
}