From 97f1b1c735775d1e22412bbcf98ef403f9ee2275 Mon Sep 17 00:00:00 2001 From: dec05eba Date: Sat, 16 Oct 2021 07:04:34 +0200 Subject: Add rectangle and sprite, use pixel coordinates, remote opengl dependency from test --- src/graphics/sprite.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 src/graphics/sprite.c (limited to 'src/graphics/sprite.c') diff --git a/src/graphics/sprite.c b/src/graphics/sprite.c new file mode 100644 index 0000000..1ec942a --- /dev/null +++ b/src/graphics/sprite.c @@ -0,0 +1,37 @@ +#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; +} -- cgit v1.2.3