andras/fleeting-garden
andras/fleeting-garden
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Andras Schmelczer 2023-05-21 13:51:09 +01:00
commit 3414f38c3a
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14 changed files with 246 additions and 149 deletions
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66
src/pipelines/agents/agent.wgsl
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@ -4,8 +4,9 @@ struct Settings {
turnRate: f32,
sensorAngle: f32,
sensorOffset: f32,
nextGenerationAggression: f32,
// nextGenerationParity: f32,
evenGenerationAggression: f32,
oddGenerationAggression: f32,
nextGenerationId: f32
};
@group(1) @binding(0) var<uniform> settings: Settings;
@ -16,7 +17,7 @@ struct Settings {
fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
let id = global_id.x;
if (id >= arrayLength(&agents) || agents[id].timeToLive <= 0) {
if (id >= arrayLength(&agents)) {
return;
}
@ -26,19 +27,11 @@ fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
let trailCurrent = textureLoad(trailMapIn, vec2<i32>(agent.position), 0);
var weight: f32;
if(agent.species == 0) {
if trailCurrent.r < trailCurrent.g {
agent.species = 1;
agents[id] = agent;
return;
}
} else {
if trailCurrent.g < trailCurrent.r {
agent.timeToLive = 0;
agents[id] = agent;
return;
}
}
// even generation id -> red channel
// odd generation id -> green channel
let isFromEvenGeneration = agent.species % 2 == 0;
let trailForward = sense(agent.position, agent.angle, settings.sensorOffset, 0);
let trailLeft = sense(agent.position, agent.angle, settings.sensorOffset, settings.sensorAngle);
@ -47,14 +40,14 @@ fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
var weightForward: f32 = trailForward.a * settings.brushTrailWeight;
var weightLeft: f32 = trailLeft.a * settings.brushTrailWeight;
var weightRight: f32 = trailRight.a * settings.brushTrailWeight;
if (agent.species == 0) {
weightForward += trailForward.r - trailForward.g;
weightLeft += trailLeft.r - trailLeft.g;
weightRight += trailRight.r - trailRight.g;
if (isFromEvenGeneration) {
weightForward += trailForward.r + settings.evenGenerationAggression * trailForward.g;
weightLeft += trailLeft.r + settings.evenGenerationAggression * trailLeft.g;
weightRight += trailRight.r + settings.evenGenerationAggression * trailRight.g;
} else {
weightForward += trailForward.g + trailForward.r * settings.nextGenerationAggression;
weightLeft += trailLeft.g + trailLeft.r * settings.nextGenerationAggression;
weightRight += trailRight.g + trailRight.r * settings.nextGenerationAggression;
weightForward += trailForward.g + settings.oddGenerationAggression * trailForward.r;
weightLeft += trailLeft.g + settings.oddGenerationAggression * trailLeft.r;
weightRight += trailRight.g + settings.oddGenerationAggression * trailRight.r;
}
var rotation: f32 = 0;
@ -77,16 +70,35 @@ fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
}
var trail = vec4<f32>(0, 0.1, 0, 0);
if (agent.species == 0) {
if (isFromEvenGeneration) {
trail = vec4(0.1, 0, 0, 0);
}
let current = textureLoad(trailMapIn, vec2<i32>(nextPosition), 0);
textureStore(trailMapOut, vec2<i32>(nextPosition), vec4(trail.rgb + current.rgb, current.a));
let current = textureLoad(trailMapIn, vec2<i32>(nextPosition), 0);
let next = vec4(trail.rgb + current.rgb, current.a);
textureStore(trailMapOut, vec2<i32>(nextPosition), next);
if(isFromEvenGeneration) {
if next.r < next.g {
if agent.species == settings.nextGenerationId {
// agent.species -= 1;
} else {
agent.species += 1;
}
}
} else {
if next.g < next.r {
if agent.species == settings.nextGenerationId {
// agent.species -= 1;
} else {
agent.species += 1;
}
}
}
agent.position = nextPosition;
agent.angle = nextAngle;
agent.timeToLive -= state.deltaTime;
agents[id] = agent;
}