/*
  ==============================================================================

    OpenGLUtils.h
    Created: 17 Jan 2026 11:41:12am
    Author:  esca

  ==============================================================================
*/

#pragma once
#include <vector>
//random shit for convenience

// fragcolour = vec4(colour.xyz, colour.w*pow(10, -(position.x*position.y)));


#define VERTEXSHADER R"(#version 330 core
in vec2 position;
in vec4 colour;
out vec4 fragcolour;
void main()
{
gl_Position = vec4(position, 1, 1);
fragcolour = colour;
if(position.x<0){
    fragcolour.a = position.x+1;
}
else{
    fragcolour.a = 1-position.x;
}
}
)"

#define FRAGSHADER R"(#version 330 core
in vec4 fragcolour;
void main()
{
gl_FragColor = fragcolour;
}
)"

#define VERTEXSHADERBACKGROUND R"(#version 330 core
layout (location = 0) in vec3 aPos;
layout (location = 1) in vec3 aColor;
layout (location = 2) in vec2 aTexCoord;

out vec3 ourColor;
out vec2 TexCoord;

void main()
{
    gl_Position = vec4(aPos, 1.0);
    ourColor = aColor;
    TexCoord = aTexCoord;
}
)"

#define FRAGSHADERBACKGROUND R"(#version 330 core
out vec4 FragColor;

in vec3 ourColor;
in vec2 TexCoord;

uniform sampler2D ourTexture;

void main()
{
    FragColor = texture(ourTexture, TexCoord);
}
)"

struct Vertex{
    float position[2];
    float colour[4];
};

struct VertexTexture{
    float position[2];
    float colour[4];
    float texturePosition[2];
};

void svCol(Vertex &v, float newColour[4]);

void setColour(std::vector<Vertex> &verticeList, float newColour[4]);

void vTransform(std::vector<Vertex> &verticeList, float x, float y);

void vScale(std::vector<Vertex> & verticeList, float x, float y);

std::vector<Vertex> generateSineWave(int numVertices, float angle, float startingColour[4]);