Gamepad Color Implementation

Author: MelonSpeedruns

include/d/actor/d_a_alink.h

@@ -4549,6 +4549,7 @@ class daAlink_c : public daPy_py_c {
     /* 0x03850 */ daAlink_procFunc mpProcFunc;
 
 #if TARGET_PC
+    void handleGamepadColor();
     void handleWolfHowl();
     void handleQuickTransform();
     bool checkGyroAimItemContext();

src/d/actor/d_a_alink_dusk.cpp

@@ -4,6 +4,113 @@
 #include "d/d_meter2_draw.h"
 #include "d/d_meter2_info.h"
 
+cXyz currentGamepadColor = {0, 0, 0};
+cXyz finalGamepadColor = {0, 0, 0};
+float lerpSpeed = 0.0f;
+const cXyz duskColor = {30, 30, -30};
+
+const cXyz heartColor1 = {255, 0, 0};
+const cXyz heartColor2 = {155, 5, 5};
+const cXyz heartColor3 = {55, 5, 5};
+
+float lerp(float a, float b, float t) {
+    return a + t * (b - a);
+}
+
+cXyz LerpColor(cXyz a, cXyz b, float t) {
+    return {lerp(a.x, b.x, t), lerp(a.y, b.y, t), lerp(a.z, b.z, t)};
+}
+
+void FadeLED(cXyz newColor, float speed) {
+    finalGamepadColor = newColor;
+    lerpSpeed = speed / 30.0f;
+}
+
+void SetLED(cXyz newColor) {
+    currentGamepadColor = newColor;
+    finalGamepadColor = newColor;
+}
+
+void AddGamepadCurrentColor(cXyz addColor) {
+    finalGamepadColor.x += addColor.x;
+    finalGamepadColor.y += addColor.y;
+    finalGamepadColor.z += addColor.z;
+}
+
+void daAlink_c::handleGamepadColor() {
+    bool setColor = false;
+
+    fopAc_ac_c* zhint = dComIfGp_att_getZHint();
+    if (zhint != NULL) {
+        FadeLED({50, 50, 175}, 2.0f);
+        setColor = true;
+    }
+
+    u8 linkHp = Z2GetLink()->getLinkHp();
+    if (linkHp <= 2) {
+        FadeLED(heartColor1, 2.0f);
+        setColor = true;
+    } else if (linkHp <= 4) {
+        FadeLED(heartColor2, 2.0f);
+        setColor = true;
+    } else if (linkHp <= 6) {
+        FadeLED(heartColor3, 2.0f);
+        setColor = true;
+    }
+
+    if (!setColor) {
+        if (checkWolf()) {
+            FadeLED({115, 115, 75}, 5.0f);
+            setColor = true;
+        } else {
+            switch (dComIfGs_getSelectEquipClothes()) {
+            case dItemNo_WEAR_KOKIRI_e:
+                FadeLED({0, 100, 0}, 5.0f);
+                setColor = true;
+                break;
+            case dItemNo_WEAR_ZORA_e:
+                FadeLED({0, 0, 100}, 5.0f);
+                setColor = true;
+                break;
+            case dItemNo_ARMOR_e:
+                if (checkMagicArmorHeavy()) {
+                    FadeLED({5, 100, 100}, 5.0f);
+                } else {
+                    FadeLED({100, 0, 5}, 5.0f);
+                }
+                setColor = true;
+                break;
+            default:
+                FadeLED({235, 230, 115}, 5.0f);
+                setColor = true;
+                break;
+            }
+        }
+    }
+
+    if (dKy_darkworld_check()) {
+        AddGamepadCurrentColor(duskColor);
+    }
+
+    if (finalGamepadColor.x > 255)
+        finalGamepadColor.x = 255;
+    if (finalGamepadColor.x < 0)
+        finalGamepadColor.x = 0;
+
+    if (finalGamepadColor.y > 255)
+        finalGamepadColor.y = 255;
+    if (finalGamepadColor.y < 0)
+        finalGamepadColor.y = 0;
+
+    if (finalGamepadColor.z > 255)
+        finalGamepadColor.z = 255;
+    if (finalGamepadColor.z < 0)
+        finalGamepadColor.z = 0;
+
+    currentGamepadColor = LerpColor(currentGamepadColor, finalGamepadColor, lerpSpeed);
+    PADSetColor(PAD_1, (u8)currentGamepadColor.x, (u8)currentGamepadColor.y, (u8)currentGamepadColor.z);
+}
+
 void daAlink_c::handleWolfHowl() {
     if (checkWolf()) {
         if (!dusk::getSettings().game.sunsSong) {

src/f_ap/f_ap_game.cpp

@@ -748,6 +748,10 @@ void fapGm_Execute() {
     #endif
 
 #if TARGET_PC
+    if (const auto link = g_dComIfG_gameInfo.play.getPlayer(0)) {
+        dynamic_cast<daAlink_c*>(link)->handleGamepadColor();
+    }
+
     if (mDoCPd_c::getHoldR(PAD_1) && mDoCPd_c::getTrigX(PAD_1)) {
         if (const auto link = g_dComIfG_gameInfo.play.getPlayer(0)) {
             dynamic_cast<daAlink_c*>(link)->handleWolfHowl();