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ReC98/th01/main/shape.hpp

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[Decompilation] [th01] 8×8 diamond, star, and snowflake sprite blitting More hardcoded sprites! These are prominently seen in the Konngara, Elis, and Sariel battles, respectively. Completes P0105, funded by Yanga.
2020-08-03 18:45:14 +00:00
// Blits the hardcoded diamond, star, or snowflake sprites in the given [col]
// to the given position.
[Maintenance] Declare distinct types for screen, VRAM, and TRAM coordinates Whew, time to look at every `int` variable we ever declared! The best moment to do this would have been a year ago, but well, better late than never. No need to communicate that in comments anymore. These shouldn't be used for widths, heights, or sprite-space coordinates. Maybe we'll cover that another time, this commit is already large enough. Part of P0111, funded by [Anonymous] and Blue Bolt.
2020-08-20 19:59:45 +00:00
void shape8x8_diamond_put(screen_x_t left, vram_y_t top, int col);
void shape8x8_star_put(screen_x_t left, vram_y_t top, int col);
void shape8x8_flake_put(screen_x_t left, vram_y_t top, int col);
[Decompilation] [th01] Ellipse arc blitting Most frequently used for complete circles, though… but who cares, as of this commit, ReC98, as a whole, is ⅓ done! Part of P0120, funded by Yanga.
2020-09-25 16:24:33 +00:00
[Maintenance] [th01] Merge invincibility sprites into the regular 8×8 shapes They have the same size, their hardcoded sprites are stored next to each other in the code, and… Part of P0153, funded by Ember2528.
2021-08-15 16:31:15 +00:00
// Blits the given [cel] of the hardcoded invincibility sprites to the given
// position.
void shape8x8_invincibility_put(screen_x_t left, vram_y_t top, int cel);
[Decompilation] [th01] Ellipse arc blitting Most frequently used for complete circles, though… but who cares, as of this commit, ReC98, as a whole, is ⅓ done! Part of P0120, funded by Yanga.
2020-09-25 16:24:33 +00:00
void shape_ellipse_arc_put(
screen_x_t center_x,
vram_y_t center_y,
pixel_t radius_x,
pixel_t radius_y,
int col,
unsigned char angle_step,
unsigned char angle_start,
unsigned char angle_end
);
[Decompilation] [th01] Sloppy ellipse arc unblitting The usual case where ZUN should have just written a custom EGC-powered unblitter, instead of resorting to the word-aligned rectangle one… Part of P0120, funded by Yanga.
2020-09-25 17:08:22 +00:00
// Makes a sloppy attempt at restoring the pixels along the given ellipse arc
// from VRAM page 1, but ends up restoring horizontal 16×1 lines along that
// arc.
void shape_ellipse_arc_sloppy_unput(
screen_x_t center_x,
vram_y_t center_y,
pixel_t radius_x,
pixel_t radius_y,
unsigned char angle_step,
unsigned char angle_start,
unsigned char angle_end
);