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#include "spritebatch.hpp"
#include <algorithm>
namespace yage
{
SpriteBatch::SpriteBatch()
{
createVertexArray();
}
SpriteBatch::~SpriteBatch()
{
if(vao_!=0)
glDeleteVertexArrays(1, &vao_);
if(vbo_!=0)
glDeleteVertexArrays(1, &vbo_);
}
void SpriteBatch::begin()
{}
void SpriteBatch::end()
{}
void SpriteBatch::draw(const glm::vec4 &destination_rect, const glm::vec4 &uv_rect, GLuint texture, const Color &color, float depth)
{
Glyph new_glyph;
new_glyph.texture=texture;
new_glyph.depth=depth;
new_glyph.top_left.color=color;
new_glyph.top_left.setPosition(destination_rect.x, destination_rect.y+destination_rect.w);
new_glyph.top_left.setUv(uv_rect.x, uv_rect.y+uv_rect.w);
new_glyph.top_right.color=color;
new_glyph.top_right.setPosition(destination_rect.x+destination_rect.z, destination_rect.y+destination_rect.w);
new_glyph.top_right.setUv(uv_rect.x+uv_rect.z, uv_rect.y+uv_rect.w);
new_glyph.bottom_right.color=color;
new_glyph.bottom_right.setPosition(destination_rect.x+destination_rect.z, destination_rect.y);
new_glyph.bottom_right.setUv(uv_rect.x+uv_rect.z, uv_rect.y);
new_glyph.bottom_right.color=color;
new_glyph.bottom_right.setPosition(destination_rect.x, destination_rect.y);
new_glyph.bottom_right.setUv(uv_rect.x, uv_rect.y);
// deal with fragmenting
glyphs_.push_back(new_glyph);
glyph_ptrs_.push_back(&glyphs_.back());
}
void SpriteBatch::renderBatch()
{}
void SpriteBatch::sortGlyphs()
{
std::sort(glyph_ptrs_.begin(), glyph_ptrs_.end(), [] (Glyph *a, Glyph *b)->bool {
if(a->depth==b->depth)
return a->texture<b->texture;
return a->depth<b->depth;
});
}
} // yage
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