#include "../../include/mgl/graphics/sprite.h"
#include "../../include/mgl/graphics/texture.h"
#include "../../include/mgl/mgl.h"

void mgl_sprite_init(mgl_sprite *self, mgl_texture *texture, float x, float y) {
    self->texture = texture;
    self->color = (mgl_color){ 1.0f, 1.0f, 1.0f, 1.0f };
    self->position = (mgl_vec2f){ x, y };
    self->scale = (mgl_vec2f){ 1.0f, 1.0f };
}

/* TODO: Cache texture bind to not bind texture if its already bound and do not bind texture 0 */
void mgl_sprite_draw(mgl_context *context, mgl_sprite *sprite) {
    context->gl.glColor4f(sprite->color.r, sprite->color.g, sprite->color.b, sprite->color.a);
    context->gl.glBindTexture(GL_TEXTURE_2D, sprite->texture->id);
    context->gl.glBegin(GL_QUADS);
        context->gl.glTexCoord2f(0.0f, 0.0f);
        context->gl.glVertex3f(sprite->position.x,                                            sprite->position.y,                                             0.0f);

        context->gl.glTexCoord2f(1.0f, 0.0f);
        context->gl.glVertex3f(sprite->position.x + sprite->texture->width * sprite->scale.x, sprite->position.y,                                             0.0f);

        context->gl.glTexCoord2f(1.0f, 1.0f);
        context->gl.glVertex3f(sprite->position.x + sprite->texture->width * sprite->scale.x, sprite->position.y + sprite->texture->height * sprite->scale.y, 0.0f);

        context->gl.glTexCoord2f(0.0f, 1.0f);
        context->gl.glVertex3f(sprite->position.x,                                            sprite->position.y + sprite->texture->height * sprite->scale.y, 0.0f);
    context->gl.glEnd();
    context->gl.glBindTexture(GL_TEXTURE_2D, 0);
}

void mgl_sprite_set_color(mgl_sprite *self, float r, float g, float b, float a) {
    self->color.r = r;
    self->color.g = g;
    self->color.b = b;
    self->color.a = a;
}