====== Flashing an Object White with Params ======

===== (Using a shader that accepts parameters) =====


Useful for indicating hits on an object, for example in shoot-em-ups.

===== Assets =====
{{examples:shaders:ship.png|}}

===== Code =====

<code=c>
orxObject_CreateFromConfig("Object");
</code>

===== Config =====

<code=ini>
[Object]
Graphic         = Graphic
ShaderList	= WhiteShader

[Graphic]
Texture       = ship.png

[WhiteShader]
ParamList = texture # objectTime # flashSpeed # maxFlashes
objectTime = time
maxFlashes = 4 ;how many times to flash
flashSpeed = 8 ;how fast between flashes
Code = "
void main() {

    vec2 p = gl_TexCoord[0].xy;
    vec4 textureCol = texture2D(texture, p);

    float t = mod(objectTime*flashSpeed, 1); 
    float flashCount = abs(objectTime*flashSpeed);

    if (t < 0.5 && flashCount < maxFlashes){
            gl_FragColor.r = 1.0;
            gl_FragColor.g = 1.0;
            gl_FragColor.b = 1.0;
            gl_FragColor.a = textureCol.a;
    } else {
            gl_FragColor.rgb = textureCol.rgb;
            gl_FragColor.a = textureCol.a;
    }

}"
</code>

===== Result =====
<WRAP center round box 60%>
{{ examples:shaders:ship-white.png |}}
</WRAP>