diff options
Diffstat (limited to 'src/sprite.c')
| -rw-r--r-- | src/sprite.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/src/sprite.c b/src/sprite.c index 30307ae..5818ebf 100644 --- a/src/sprite.c +++ b/src/sprite.c @@ -11,6 +11,7 @@ sprite create_sprite(image* img, int frame_count, int fwidth, int fheight, float s.sec_per_frame = sec_per_frame; s.time = 0.0f; s.frame_start = 0; + s.zoom = 1.0f; return s; } @@ -42,10 +43,13 @@ sprite_frame sprite_get_frame(image* img, sprite* sprite) { int column = (sprite->frame_start + sprite->current_frame) % columns; int row = (sprite->frame_start + sprite->current_frame) / columns; - frame.tl = (vec2f){column * column_percentage, row * row_percentage}; - frame.tr = (vec2f){column * column_percentage + column_percentage, row * row_percentage}; - frame.bl = (vec2f){column * column_percentage, row * row_percentage + row_percentage}; - frame.br = (vec2f){column * column_percentage + column_percentage, row * row_percentage + row_percentage}; + float offsetx = column_percentage * (sprite->zoom-1.0f); + float offsety = row_percentage * (sprite->zoom-1.0f); + + frame.tl = (vec2f){column * column_percentage + offsetx, row * row_percentage + offsety}; + frame.tr = (vec2f){column * column_percentage + column_percentage - offsetx, row * row_percentage + offsety}; + frame.bl = (vec2f){column * column_percentage + offsetx, row * row_percentage + row_percentage - offsety}; + frame.br = (vec2f){column * column_percentage + column_percentage - offsetx, row * row_percentage + row_percentage - offsety}; /* frame.tl = (vec2f){0,0}; @@ -54,4 +58,16 @@ sprite_frame sprite_get_frame(image* img, sprite* sprite) { frame.br = (vec2f){0.25f,0.25f}; */ return frame; +} + +sprite_frame sprite_swap_frame_horizontally(sprite_frame frame) { + vec2f tl = frame.tr; + vec2f tr = frame.tl; + vec2f bl = frame.br; + vec2f br = frame.bl; + frame.tl = tl; + frame.tr = tr; + frame.bl = bl; + frame.br = br; + return frame; }
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