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(ckb-ripple) Add the option to select a single color at random from the gradient #264

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(ckb-ripple) Add the option to select a single color at random from the gradient #264

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12 changes: 10 additions & 2 deletions src/ckb-ripple/main.c
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
#include "../ckb/ckb-anim.h"
#include <math.h>
#include <time.h>

void ckb_info(){
// Plugin info
Expand All @@ -14,6 +15,7 @@ void ckb_info(){
CKB_PARAM_AGRADIENT("color", "Ripple color:", "", "ffffffff");
CKB_PARAM_DOUBLE("length", "Ring length:", "%", 100, 1, 100);
CKB_PARAM_BOOL("symmetric", "Symmetric", 0);
CKB_PARAM_BOOL("randomize", "Randomly select from gradient", 0);

// Timing/input parameters
CKB_KPMODE(CKB_KP_POSITION);
Expand Down Expand Up @@ -44,11 +46,12 @@ void ckb_info(){

float kbsize = 0.f;
ckb_gradient animcolor = { 0 };
int symmetric = 0, kprelease = 0;
int symmetric = 0, kprelease = 0, randomize = 0;
double animlength = 0.;

void ckb_init(ckb_runctx* context){
kbsize = sqrt(context->width * context->width / 4.f + context->height * context->height / 4.f);
srand((unsigned)time(NULL));
}

void ckb_parameter(ckb_runctx* context, const char* name, const char* value){
Expand All @@ -61,6 +64,7 @@ void ckb_parameter(ckb_runctx* context, const char* name, const char* value){
}
CKB_PARSE_BOOL("symmetric", &symmetric){}
CKB_PARSE_BOOL("kprelease", &kprelease){}
CKB_PARSE_BOOL("randomize", &randomize){}
}

#define ANIM_MAX (144 * 2)
Expand All @@ -69,6 +73,7 @@ struct {
float x, y;
float maxsize;
float cursize;
float choice;
} anim[ANIM_MAX] = { };

void anim_add(float x, float y, float width, float height){
Expand All @@ -82,6 +87,7 @@ void anim_add(float x, float y, float width, float height){
float sizey = fmax(y, height - y);
anim[i].maxsize = sqrt(sizex * sizex + sizey * sizey) + animlength;
anim[i].cursize = (symmetric) ? -animlength : 0;
anim[i].choice = (float)rand()/(float)(RAND_MAX);
return;
}
}
Expand Down Expand Up @@ -140,10 +146,12 @@ int ckb_frame(ckb_runctx* context){
if(distance > 1.f && distance <= 1.005f)
// Round values close to 1
distance = 1.f;

// Blend color gradient according to position
if(distance >= 0. && distance <= 1.f){
float a, r, g, b;
ckb_grad_color(&a, &r, &g, &b, &animcolor, distance * 100.);
float gradChoice = randomize ? anim[i].choice : distance;
ckb_grad_color(&a, &r, &g, &b, &animcolor, gradChoice * 100.);
ckb_alpha_blend(key, a, r, g, b);
}
}
Expand Down