From 91e5956932d17de17c0c75be20c834cf7a6c6ed9 Mon Sep 17 00:00:00 2001 From: Vito Caputo Date: Fri, 3 Feb 2017 13:06:26 -0800 Subject: rototiller: extricate draw_pixel() bounds checking If a z-buffer is added these checks will need to be done independent from and prior to drawing. Also it's silly to makergb() pixels which can't be drawn. --- src/modules/sparkler/xplode.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'src/modules/sparkler/xplode.c') diff --git a/src/modules/sparkler/xplode.c b/src/modules/sparkler/xplode.c index 24a436e..5f99f7b 100644 --- a/src/modules/sparkler/xplode.c +++ b/src/modules/sparkler/xplode.c @@ -1,6 +1,7 @@ #include #include "draw.h" +#include "fb.h" #include "particle.h" #include "particles.h" @@ -60,16 +61,19 @@ static void xplode_draw(particles_t *particles, particle_t *p, int x, int y, fb_ xplode_ctxt_t *ctxt = p->ctxt; uint32_t color; + if (!fb_fragment_contains(f, x, y)) { + /* offscreen */ + ctxt->longevity = 0; + return; + } + if (ctxt->longevity == ctxt->lifetime) { color = makergb(0xff, 0xff, 0xa0, 1.0); } else { color = makergb(0xff, 0xff, 0x00, ((float)ctxt->longevity / ctxt->lifetime)); } - if (!draw_pixel(f, x, y, color)) { - /* offscreen */ - ctxt->longevity = 0; - } + draw_pixel(f, x, y, color); } -- cgit v1.2.1