Files
HackerOoT/src/code/rainbow.c
2024-04-20 15:21:44 +02:00

84 lines
2.5 KiB
C

#include "rainbow.h"
#include "macros.h"
/**
* How to use:
* - Create a ``Rainbow`` variable (no pointer)
* - Call ``Rainbow_Init`` in an init function with the address of the variable you just created
* - Call ``Rainbow_Update`` in an update function with the same address
* See ``main.c`` and ``game.c`` for the global rainbow implementation.
*/
static RainbowTarget sRainbowTarget[STATE_MAX] = {
{ STATE_YELLOW_TO_GREEN, { 255, 255, 0 } },
{ STATE_GREEN_TO_LIGHTBLUE, { 0, 255, 0 } },
{ STATE_LIGHTBLUE_TO_BLUE, { 0, 255, 255 } },
{ STATE_BLUE_TO_PINK, { 0, 0, 255 } },
{ STATE_PINK_TO_RED, { 255, 0, 255 } },
{ STATE_RED_TO_YELLOW, { 255, 0, 0 } },
};
void Rainbow_Debug(Rainbow* this) {
PRINTF(
"state: %d, r: %d, g: %d, b: %d, speed: %d, sRainbowTarget.state: %d\n",
this->state, this->color.r, this->color.g, this->color.b, this->speed, sRainbowTarget[this->state].state
);
}
void Rainbow_InitColor(Rainbow* this) {
this->color = sRainbowTarget[this->state].color;
}
void Rainbow_Init(Rainbow* this) {
this->state = STATE_RED_TO_YELLOW;
this->speed = 8;
this->bAllowDebug = false;
this->bPause = false;
Rainbow_InitColor(this);
}
u8 Rainbow_CheckColor(Rainbow* this, Color_RGB8 rgb) {
return ((this->color.r == rgb.r) && (this->color.g == rgb.g) && (this->color.b == rgb.b));
}
void Rainbow_UpdateColor(Rainbow* this) {
u8* channel = NULL;
switch (this->state) {
case STATE_YELLOW_TO_GREEN:
case STATE_BLUE_TO_PINK:
channel = &this->color.r;
break;
case STATE_RED_TO_YELLOW:
case STATE_LIGHTBLUE_TO_BLUE:
channel = &this->color.g;
break;
case STATE_GREEN_TO_LIGHTBLUE:
case STATE_PINK_TO_RED:
channel = &this->color.b;
break;
}
if (channel != NULL) {
s16 newValue = (s16)(!(this->state % 2) ? (*channel + this->speed) : (*channel - this->speed));
*channel = (u8)(newValue > 255 ? 255 : newValue < 0 ? 0 : newValue);
}
}
void Rainbow_UpdateState(Rainbow* this, RainbowTarget target) {
if (Rainbow_CheckColor(this, target.color)) {
this->state = target.state;
}
}
void Rainbow_Update(Rainbow* this) {
if (!this->bPause) {
Rainbow_UpdateColor(this);
Rainbow_UpdateState(this, sRainbowTarget[this->state]);
if (this->bAllowDebug) {
Rainbow_Debug(this);
}
}
}