adafruit-mirror/Adafruit_Learning_System_Guides
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Merge pull request #2551 from PaintYourDragon/main

Browse source 
Ooze Master 3000: add “splat map” for Erin’s project
This commit is contained in:
Anne Barela 2023-06-29 19:52:39 -04:00 committed by GitHub
commit f0c0af9b64
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
OozeMaster3000/OozeMaster3000.ino
View file

@ -19,9 +19,9 @@
#define GAMMA 2.6 // For linear brightness correction
#define G_CONST 9.806 // Standard acceleration due to gravity
// While the above G_CONST is correct for "real time" drips, you can dial it back
// for a more theatric effect / to slow down the drips like they've still got a
// syrupy "drool string" attached (try much lower values like 2.0 to 3.0).
// While the above G_CONST is correct for "real time" drips, you can dial it
// back for a more theatric effect / to slow the drips like they've still got
// a syrupy "drool string" attached (try much lower values like 2.0 to 3.0).
// NeoPXL8 pin numbers
#if defined(ARDUINO_ADAFRUIT_FEATHER_RP2040_SCORPIO)
@ -104,6 +104,14 @@ struct {
// NeoPXL8 output 7 is normally reserved for ground splats
// You CAN add an eighth drip here, but then will not get splats
};
// There might be situations where the "splat" pixels are more easily
// installed using a longer strand of fixed-spacing "pebble style" NeoPixels
// rather than soldering up separate pixels for each one...and then lighting
// up only specific pixels along that strand for splats, leaving the others
// un-lit. This table holds indices for seven pixels along that strand
// corresponding to the seven splats. Could also be used to reverse the
// order of splat indices, etc.
uint8_t splatmap[] = { 0, 1, 2, 3, 4, 5, 6 };
#ifdef USE_HDR
Adafruit_NeoPXL8HDR *pixels = NULL;
@ -132,7 +140,8 @@ void setup() {
drip[i].eventDurationReal = (float)drip[i].eventDurationUsec / 1000000.0;
drip[i].splatStartUsec = 0;
drip[i].splatDurationUsec = 0;
if(drip[i].length > longestStrand) longestStrand = drip[i].length;
if(drip[i].length > longestStrand) longestStrand = drip[i].length;
if((splatmap[i] + 1) > longestStrand) longestStrand = splatmap[i] + 1;
// Randomize initial color:
memcpy(drip[i].color, palette[random(drip[i].palette_min, drip[i].palette_max + 1)], sizeof palette[0]);
memcpy(drip[i].splatColor, drip[i].color, sizeof palette[0]);
@ -267,7 +276,7 @@ void loop() {
dtUsec = t - drip[i].splatStartUsec; // Elapsed time, in microseconds, since start of splat
if(dtUsec < drip[i].splatDurationUsec) {
x = 1.0 - sqrt((float)dtUsec / (float)drip[i].splatDurationUsec);
set(7, i, i, x);
set(7, i, splatmap[i], x);
}
}
}
@ -322,7 +331,7 @@ void dripDraw(uint8_t dNum, float a, float b, bool fade) {
// Set one pixel to a given brightness level (0.0 to 1.0).
// Strand # and drip # are BOTH passed in because "splats" are always
// on drip 7 but colors come from drip indices.
// on strand 7 but colors come from drip indices.
void set(uint8_t strand, uint8_t d, uint8_t pixel, float brightness) {
#if !defined(USE_HDR) // NeoPXL8HDR does its own gamma correction, else...
brightness = pow(brightness, GAMMA);