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ReC98/th01/main/playfld.hpp

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[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
static const screen_x_t PLAYFIELD_LEFT = 0;
static const screen_y_t PLAYFIELD_TOP = 64;
static const screen_x_t PLAYFIELD_RIGHT = RES_X;
static const screen_y_t PLAYFIELD_BOTTOM = RES_Y;
[Decompilation] [th01] .PTN: Byte-aligned 32×32 unblitting Part of P0096, funded by Ember2528.
2020-06-06 14:48:29 +00:00
[Decompilation] [th01] Stage objects: STAGE?.DAT loading Final set of file loading calls in TH01! Part of P0129, funded by Yanga.
2020-11-22 16:01:54 +00:00
static const pixel_t PLAYFIELD_W = (PLAYFIELD_RIGHT - PLAYFIELD_LEFT);
static const pixel_t PLAYFIELD_H = (PLAYFIELD_BOTTOM - PLAYFIELD_TOP);
[Maintenance] Rename all old *_X and *_Y constants to *_LEFT and *_TOP Part of P0112, funded by [Anonymous] and Blue Bolt.
2020-08-25 18:29:24 +00:00
static const screen_x_t PLAYFIELD_CENTER_X = (
[Reverse-engineering] [th01] Reimu's X position 13 copies of the clamping branches… Quality. Part of P0096, funded by Ember2528.
2020-06-05 19:45:55 +00:00
((PLAYFIELD_RIGHT - PLAYFIELD_LEFT) / 2) + PLAYFIELD_LEFT
);
[Decompilation] Add inline functions to calculate playfield fractions Oh no, another place in which I'm going too far?! Just because I'm sick of hardcoded number literals after 6 years? Hm… Part of P0142, funded by Yanga.
2021-05-26 19:41:17 +00:00
inline pixel_t playfield_fraction_x(float fraction = 1.0f) {
return ((int)(PLAYFIELD_W * fraction));
}
static inline pixel_t playfield_fraction_y(float fraction = 1.0f) {
return ((int)(PLAYFIELD_H * fraction));
}
#ifdef rand
// Calculates a random X value that spans the given [fraction] of the
// playfield.
static inline pixel_t playfield_rand_x(float fraction = 1.0f) {
return (rand() % playfield_fraction_x(fraction));
}
// Calculates a random Y value that spans the given [fraction] of the
// playfield.
static inline pixel_t playfield_rand_y(float fraction = 1.0f) {
return (rand() % playfield_fraction_y(fraction));
}
#endif