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https://github.com/NoelFB/blah.git
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dcd3e11b16
1) Over time the total amount of files has decreased, and so it made sense to just simplify the folder structure and remove all of the subfolders. 2) Refactor the String class to utilize the existing Vector and StackVector classes instead of managing everything itself.
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
#include <blah_subtexture.h>
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#include <blah_calc.h>
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using namespace Blah;
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Subtexture::Subtexture() {}
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Subtexture::Subtexture(const TextureRef& texture)
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: Subtexture(texture, Rectf(0, 0, (float)texture->width(), (float)texture->height())) {}
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Subtexture::Subtexture(const TextureRef& texture, Rectf source)
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: Subtexture(texture, source, Rectf(0, 0, source.w, source.h)) {}
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Subtexture::Subtexture(const TextureRef& texture, Rectf source, Rectf frame)
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: texture(texture), source(source), frame(frame)
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{
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update();
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}
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void Subtexture::update()
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{
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draw_coords[0].x = -frame.x;
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draw_coords[0].y = -frame.y;
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draw_coords[1].x = -frame.x + source.w;
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draw_coords[1].y = -frame.y;
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draw_coords[2].x = -frame.x + source.w;
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draw_coords[2].y = -frame.y + source.h;
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draw_coords[3].x = -frame.x;
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draw_coords[3].y = -frame.y + source.h;
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if (texture)
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{
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float uvx = 1.0f / (float)texture->width();
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float uvy = 1.0f / (float)texture->height();
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tex_coords[0].x = source.x * uvx;
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tex_coords[0].y = source.y * uvy;
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tex_coords[1].x = (source.x + source.w ) * uvx;
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tex_coords[1].y = source.y * uvy;
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tex_coords[2].x = (source.x + source.w) * uvx;
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tex_coords[2].y = (source.y + source.h) * uvy;
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tex_coords[3].x = source.x * uvx;
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tex_coords[3].y = (source.y + source.h) * uvy;
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}
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}
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void Subtexture::crop_info(const Rectf& clip, Rectf* dest_source, Rectf* dest_frame) const
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{
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*dest_source = (clip + source.top_left() + frame.top_left()).overlap_rect(source);
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dest_frame->x = Calc::min(0.0f, frame.x + clip.x);
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dest_frame->y = Calc::min(0.0f, frame.y + clip.y);
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dest_frame->w = clip.w;
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dest_frame->h = clip.h;
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}
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Subtexture Subtexture::crop(const Rectf& clip) const
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{
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Subtexture dst;
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dst.texture = texture;
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crop_info(clip, &dst.source, &dst.frame);
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dst.update();
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return dst;
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}
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