Light.cpp

#include "Light.h"

//Refer https://learnopengl.com/Lighting/Basic-Lighting

Light::Light()
	:AmbientColour{ glm::vec3(1.0f,0.0f,0.0f) },
	AmbientIntensity{ 1.0f },
	DiffuseIntensity{ 1.0f },
	LightProjection{ glm::mat4(1.f) },
	ShadowMapWidth{1024},
	ShadowMapHeight{1024 },
	//LightProjection{ glm::mat4(1.f) },
	sMap{nullptr}
	{
		sMap = new ShadowMap();
	}

Light::Light(glm::vec4 AmbientLightParams, GLfloat DiffuseIntensity, GLuint SMapWidth, GLuint SMapHeight)
	: AmbientColour{ glm::vec3(AmbientLightParams.x,AmbientLightParams.y,AmbientLightParams.z) },
	AmbientIntensity{ AmbientLightParams.w },
	DiffuseIntensity{DiffuseIntensity},
	ShadowMapWidth{SMapWidth},
	ShadowMapHeight{SMapHeight},
	LightProjection{ glm::mat4(1.f) },
	sMap{ nullptr }
{
	sMap = new ShadowMap();
}


void Light::UseLight(GLuint AmbientColorLocation, GLuint AmbientIntensityLocation,GLuint DiffuseIntensityUniformLocation)
{
	//Passes light information into the shaders
	glUniform3f(AmbientColorLocation, AmbientColour.x, AmbientColour.y, AmbientColour.z);
	glUniform1f(AmbientIntensityLocation, AmbientIntensity);
	glUniform1f(DiffuseIntensityUniformLocation, DiffuseIntensity);
}

void Light::CreateShadowMap()
{
	
	sMap->Init(ShadowMapWidth, ShadowMapHeight);
}

ShadowMap* Light::GetShadowMap()
{
	return sMap;
}