diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gl.c | 1 | ||||
| -rw-r--r-- | src/graphics/sprite.c | 25 |
2 files changed, 20 insertions, 6 deletions
@@ -57,6 +57,7 @@ int mgl_gl_load(mgl_gl *self) { { &self->glLoadIdentity, "glLoadIdentity" }, { &self->glLoadMatrixf, "glLoadMatrixf" }, { &self->glTranslatef, "glTranslatef" }, + { &self->glRotatef, "glRotatef" }, { &self->glGenBuffers, "glGenBuffers" }, { &self->glBindBuffer, "glBindBuffer" }, { &self->glDeleteBuffers, "glDeleteBuffers" }, diff --git a/src/graphics/sprite.c b/src/graphics/sprite.c index 2aecdd1..df3e902 100644 --- a/src/graphics/sprite.c +++ b/src/graphics/sprite.c @@ -2,11 +2,13 @@ #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) { +void mgl_sprite_init(mgl_sprite *self, mgl_texture *texture) { self->texture = texture; self->color = (mgl_color){ 255, 255, 255, 255 }; - self->position = (mgl_vec2f){ x, y }; + self->position = (mgl_vec2f){ 0.0f, 0.0f }; self->scale = (mgl_vec2f){ 1.0f, 1.0f }; + self->origin = (mgl_vec2f){ 0.0f, 0.0f }; + self->rotation = 0.0f; } void mgl_sprite_set_texture(mgl_sprite *self, mgl_texture *texture) { @@ -21,6 +23,14 @@ void mgl_sprite_set_color(mgl_sprite *self, mgl_color color) { self->color = color; } +void mgl_sprite_set_rotation(mgl_sprite *self, float degrees) { + self->rotation = degrees; +} + +void mgl_sprite_set_origin(mgl_sprite *self, mgl_vec2f origin) { + self->origin = origin; +} + /* 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) { if(!sprite->texture) @@ -35,18 +45,21 @@ void mgl_sprite_draw(mgl_context *context, mgl_sprite *sprite) { context->gl.glColor4ub(sprite->color.r, sprite->color.g, sprite->color.b, sprite->color.a); mgl_texture_use(sprite->texture); + context->gl.glTranslatef(sprite->position.x, sprite->position.y, 0.0f); + context->gl.glRotatef(sprite->rotation, 0.0f, 0.0f, 1.0f); 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.glVertex3f(-sprite->origin.x * sprite->scale.x, -sprite->origin.y * sprite->scale.y, 0.0f); context->gl.glTexCoord2f(texture_right, 0.0f); - context->gl.glVertex3f(sprite->position.x + sprite->texture->width * sprite->scale.x, sprite->position.y, 0.0f); + context->gl.glVertex3f((sprite->texture->width - sprite->origin.x) * sprite->scale.x, -sprite->origin.y * sprite->scale.y, 0.0f); context->gl.glTexCoord2f(texture_right, texture_bottom); - 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.glVertex3f((sprite->texture->width - sprite->origin.x) * sprite->scale.x, (sprite->texture->height - sprite->origin.y) * sprite->scale.y, 0.0f); context->gl.glTexCoord2f(0.0f, texture_bottom); - context->gl.glVertex3f(sprite->position.x, sprite->position.y + sprite->texture->height * sprite->scale.y, 0.0f); + context->gl.glVertex3f(-sprite->origin.x * sprite->scale.x, (sprite->texture->height - sprite->origin.y) * sprite->scale.y, 0.0f); context->gl.glEnd(); mgl_texture_use(NULL); + context->gl.glLoadIdentity(); /* TODO: Remove, but what about glRotatef above */ } |