Lasers and cursors can be recolored

scripts/gameplay/crit_line.lua

@@ -18,6 +18,9 @@ local cursorGlowTopImages = {
     gfx.CreateSkinImage("gameplay/crit_line/cursor_glow_top_right.png", 0),
 }
 
+local cursorGlowWhite = gfx.CreateSkinImage("gameplay/crit_line/cursor_glow_white.png", 0);
+local cursorGlowColor = gfx.CreateSkinImage("gameplay/crit_line/cursor_glow_color.png", 0);
+
 local CRITBAR_W = 1080
 local CRITBAR_H = 251
 
@@ -39,6 +42,11 @@ local drawCursors = function (centerX, centerY,cursors)
         local cursorX = cursor.pos * (1 / scale) - cursorW / 2;
         local cursorY = -cursorH / 2;
 
+        local glowAlpha = cursor.alpha;
+        if (i == 1) then glowAlpha = glowAlpha * 0.7; end
+
+        local r, g, b = game.GetLaserColor(i);
+
         gfx.ImageRect(
             cursorX,
             cursorY,
@@ -54,11 +62,23 @@ local drawCursors = function (centerX, centerY,cursors)
             cursorY,
             cursorW,
             cursorH,
-            cursorGlowBottomImages[i+1],
+            cursorGlowWhite,
-            cursor.alpha,
+            glowAlpha,
             0
         );
 
+        gfx.SetImageTint(r, g, b);
+        gfx.ImageRect(
+            cursorX,
+            cursorY,
+            cursorW,
+            cursorH,
+            cursorGlowColor,
+            glowAlpha,
+            0
+        );
+
+        gfx.SetImageTint(255, 255, 255);
         gfx.ImageRect(
             cursorX,
             cursorY,
@@ -74,11 +94,23 @@ local drawCursors = function (centerX, centerY,cursors)
             cursorY,
             cursorW,
             cursorH,
-            cursorGlowTopImages[i+1],
+            cursorGlowWhite,
-            cursor.alpha,
+            glowAlpha,
             0
         );
 
+        gfx.SetImageTint(r, g, b);
+        gfx.ImageRect(
+            cursorX,
+            cursorY,
+            cursorW,
+            cursorH,
+            cursorGlowColor,
+            glowAlpha,
+            0
+        );
+    
+        gfx.SetImageTint(255, 255, 255);
         gfx.Restore();
     end
 end

shaders/laser.fs

@@ -20,10 +20,27 @@ uniform int hitState;
 
 const float laserSize = 1.0675;
 
+vec3 rgb2hsv(vec3 c)
+{
+    vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
+    vec4 p = mix(vec4(c.bg, K.wz), vec4(c.gb, K.xy), step(c.b, c.g));
+    vec4 q = mix(vec4(p.xyw, c.r), vec4(c.r, p.yzx), step(p.x, c.r));
+
+    float d = q.x - min(q.w, q.y);
+    float e = 1.0e-10;
+    return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
+}
+
+vec3 hsv2rgb(vec3 c)
+{
+    vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
+    vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
+    return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
+}
+
 void main() {
 	if (laserPart == 1) {
 		target = texture(mainTex, fsTex);
-		
 		return;
 	}
 	
@@ -40,8 +57,26 @@ void main() {
 	x += (laserSize / 2);
 
 	float y = 0.25 * ceil(float(hitState)) + 0.01;
+	vec4 channels = texture(mainTex, vec2(x, y));
 
-	float visiblityMultiplier = 1;
+	vec3 baseColor = color.rgb * channels.g;
+	vec3 baseHsv = rgb2hsv(baseColor);
 
-	target = texture(mainTex, vec2(x, y)) * vec4(visiblityMultiplier,visiblityMultiplier,visiblityMultiplier,1);
+	float h = baseHsv.x;
+
+	float hilightHue = 0.0;
+	if (h < 2.0 / 12.0)
+		hilightHue = 1.0 - smoothstep(0, 1.0 / 12.0, h);
+	else hilightHue = smoothstep(2.0 / 12.0, 6.0 / 12.0, h);
+
+	hilightHue = mod((280.0 / 360.0) + (hilightHue * 140.0 / 360.0), 1.0);
+	vec3 hilightColor = hsv2rgb(vec3(hilightHue, 1, 1));
+
+	baseColor = baseColor * (1.0 - channels.b) + vec3(channels.b);
+
+	//hilightColor = hilightColor * channels.r;
+
+	vec3 mixedColor = clamp(mix(baseColor, hilightColor, channels.r), 0.0, 1.0);
+
+	target = vec4(mixedColor, 1);
 }