Vertex.cpp

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#include "Vertex.hpp"
 
namespace BARE2D {
    Glyph::Glyph(glm::vec4& destRect, glm::vec4& uvRect, GLuint& Texture, float& Depth, Colour& colour) : texture(Texture), depth(Depth) {
        topLeft.colour = colour;
        topLeft.setPosition(destRect.x, destRect.y + destRect.w, depth);
        topLeft.setUV(uvRect.x, uvRect.y + uvRect.w);
 
        bottomLeft.colour = colour;
        bottomLeft.setPosition(destRect.x, destRect.y, depth);
        bottomLeft.setUV(uvRect.x, uvRect.y);
 
        bottomRight.colour = colour;
        bottomRight.setPosition(destRect.x + destRect.z, destRect.y, depth);
        bottomRight.setUV(uvRect.x + uvRect.z, uvRect.y);
 
        topRight.colour = colour;
        topRight.setPosition(destRect.x + destRect.z, destRect.y + destRect.w, depth);
        topRight.setUV(uvRect.x + uvRect.z, uvRect.y + uvRect.w);
    }
    
    Glyph::Glyph(glm::vec4& destRect, glm::vec4& uvRect, GLuint& Texture, float& Depth, Colour& colour, float& angle) : texture(Texture), depth(Depth) {
        glm::vec2 centrePoint = glm::vec2(destRect.z, destRect.w) * glm::vec2(0.5f);
 
        // Get points centered at origin
        glm::vec2 tl(-centrePoint.x, centrePoint.y);
        glm::vec2 bl(-centrePoint.x, -centrePoint.y);
        glm::vec2 br(centrePoint.x, -centrePoint.y);
        glm::vec2 tr(centrePoint.x, centrePoint.y);
 
        // Rotate the points
        tl = rotatePoint(tl, angle) + centrePoint;
        bl = rotatePoint(bl, angle) + centrePoint;
        br = rotatePoint(br, angle) + centrePoint;
        tr = rotatePoint(tr, angle) + centrePoint;
        
        topLeft.colour = colour;
        topLeft.setPosition(destRect.x + tl.x, destRect.y + tl.y, depth);
        topLeft.setUV(uvRect.x, uvRect.y + uvRect.w);
 
        bottomLeft.colour = colour;
        bottomLeft.setPosition(destRect.x + bl.x, destRect.y + bl.y, depth);
        bottomLeft.setUV(uvRect.x, uvRect.y);
 
        bottomRight.colour = colour;
        bottomRight.setPosition(destRect.x + br.x, destRect.y + br.y, depth);
        bottomRight.setUV(uvRect.x + uvRect.z, uvRect.y);
 
        topRight.colour = colour;
        topRight.setPosition(destRect.x + tr.x, destRect.y + tr.y, depth);
        topRight.setUV(uvRect.x + uvRect.z, uvRect.y + uvRect.w);
    }
    
    Glyph::Glyph(glm::vec4& destRect, glm::vec4& uvRect, GLuint& Texture, float& Depth, Colour& colour, float& angle, glm::vec2& COR) : texture(Texture), depth(Depth) {
        glm::vec2 centrePoint = glm::vec2(destRect.z, destRect.w) * COR;
        glm::vec2 invCentrePoint = glm::vec2(destRect.z, destRect.w) * (1.0f - COR);
 
        // Get points centered at origin
        glm::vec2 tl(-invCentrePoint.x, centrePoint.y);
        glm::vec2 bl(-invCentrePoint.x, -invCentrePoint.y);
        glm::vec2 br(centrePoint.x, -invCentrePoint.y);
        glm::vec2 tr(centrePoint.x, centrePoint.y);
 
        // Rotate the points
        tl = rotatePoint(tl, angle) + centrePoint;
        bl = rotatePoint(bl, angle) + centrePoint;
        br = rotatePoint(br, angle) + centrePoint;
        tr = rotatePoint(tr, angle) + centrePoint;
        
        topLeft.colour = colour;
        topLeft.setPosition(destRect.x + tl.x, destRect.y + tl.y, depth);
        topLeft.setUV(uvRect.x, uvRect.y + uvRect.w);
 
        bottomLeft.colour = colour;
        bottomLeft.setPosition(destRect.x + bl.x, destRect.y + bl.y, depth);
        bottomLeft.setUV(uvRect.x, uvRect.y);
 
        bottomRight.colour = colour;
        bottomRight.setPosition(destRect.x + br.x, destRect.y + br.y, depth);
        bottomRight.setUV(uvRect.x + uvRect.z, uvRect.y);
 
        topRight.colour = colour;
        topRight.setPosition(destRect.x + tr.x, destRect.y + tr.y, depth);
        topRight.setUV(uvRect.x + uvRect.z, uvRect.y + uvRect.w);
    }
    
    glm::vec2 Glyph::rotatePoint(const glm::vec2& pos, float& angle) {
        glm::vec2 newv;
        newv.x = pos.x * cos(angle) - pos.y * sin(angle);
        newv.y = pos.y * cos(angle) + pos.x * sin(angle);
        return newv;
    }
    
    
}