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Diffstat (limited to 'include/toolbox.h')
| -rw-r--r-- | include/toolbox.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/include/toolbox.h b/include/toolbox.h new file mode 100644 index 0000000..064f0a3 --- /dev/null +++ b/include/toolbox.h @@ -0,0 +1,154 @@ +// +// toolbox.h: +// +// Tools header for obj_demo +// +// (20060211-20060924, cearn) +// +// === NOTES === +// * This is a _small_ set of typedefs, #defines and inlines that can +// be found in tonclib, and might not represent the +// final forms. + + +#ifndef TOOLBOX_H +#define TOOLBOX_H + +#include "types.h" // (tonc_types.h) +#include "memmap.h" // (tonc_memmap.h) +#include "memdef.h" // (tonc_memdef.h) +#include "input.h" // (tonc_input.h) + +// === (tonc_core.h) ================================================== + +// tribool: 1 if {plus} on, -1 if {minus} on, 0 if {plus}=={minus} +INLINE int bit_tribool(u32 x, int plus, int minus); + + +extern COLOR *vid_page; +extern u16 __key_curr, __key_prev; + + +// === (tonc_video.h) ================================================= + +// --- sizes --- +#define SCREEN_WIDTH 240 +#define SCREEN_HEIGHT 160 + +#define M3_WIDTH SCREEN_WIDTH +#define M3_HEIGHT SCREEN_HEIGHT +#define M4_WIDTH SCREEN_WIDTH +#define M4_HEIGHT SCREEN_HEIGHT +#define M5_WIDTH 160 +#define M5_HEIGHT 128 + +// --- colors --- + +#define CLR_BLACK 0x0000 +#define CLR_RED 0x001F +#define CLR_LIME 0x03E0 +#define CLR_YELLOW 0x03FF +#define CLR_BLUE 0x7C00 +#define CLR_MAG 0x7C1F +#define CLR_CYAN 0x7FE0 +#define CLR_WHITE 0x7FFF + +INLINE COLOR RGB15(u32 red, u32 green, u32 blue); + +INLINE void vid_vsync(); +u16 *vid_flip(); + + +// --- Objects --- + +void oam_init(OBJ_ATTR *obj, u32 count); +void oam_copy(OBJ_ATTR *dst, const OBJ_ATTR *src, u32 count); + +INLINE OBJ_ATTR *obj_set_attr(OBJ_ATTR *obj, u16 a0, u16 a1, u16 a2); +INLINE void obj_set_pos(OBJ_ATTR *obj, int x, int y); +INLINE void obj_hide(OBJ_ATTR *oatr); +INLINE void obj_unhide(OBJ_ATTR *obj, u16 mode); +void obj_copy(OBJ_ATTR *dst, const OBJ_ATTR *src, u32 count); + + +// === INLINES ======================================================== + +// --- (tonc_core.h) -------------------------------------------------- + +// --- Simple bit macros --- +#define BIT(n) ( 1<<(n) ) +#define BIT_SHIFT(a, n) ( (a)<<(n) ) +#define BIT_SET(word, flag) ( word |= (flag) ) +#define BIT_CLEAR(word, flag) ( word &= ~(flag) ) +#define BIT_FLIP(word, flag) ( word ^= (flag) ) +#define BIT_EQ(word, flag) ( ((word)&(flag)) == (flag) ) + +// some EVIL bit-field operations, >:) +// _x needs shifting +#define BFN_PREP(x, name) ( ((x)<<name##_SHIFT) & name##_MASK ) +#define BFN_GET(y, name) ( ((y) & name##_MASK)>>name##_SHIFT ) +#define BFN_SET(y, x, name) (y = ((y)&~name##_MASK) | BFN_PREP(x,name) ) + +// x already shifted +#define BFN_PREP2(x, name) ( (x) & name##_MASK ) +#define BFN_GET2(y, name) ( (y) & name##_MASK ) +#define BFN_SET2(y, x, name) (y = ((y)&~name##_MASK) | BFN_PREP2(x,name) ) + +//! Gives a tribool (-1, 0, or +1) depending on the state of some bits. +/*! Looks at the \a plus and \a minus bits of \a flags, and subtracts +* their status to give a +1, -1 or 0 result. Useful for direction flags. +* \param plus Bit number for positive result +* \param minus Bit number for negative result +* \return <b>+1</b> if \a plus bit is set but \a minus bit isn't<br> +* <b>-1</b> if \a minus bit is set and \a plus bit isn't</br> +* <b>0</b> if neither or both are set. +*/ +INLINE int bit_tribool(u32 flags, int plus, int minus) +{ return ((flags>>plus)&1) - ((flags>>minus)&1); } + + +// --- (tonc_video.h) ------------------------------------------------- + +//! Wait for next VBlank +INLINE void vid_vsync() +{ + while(REG_VCOUNT >= 160); // wait till VDraw + while(REG_VCOUNT < 160); // wait till VBlank +} + +//! Create a 15bit BGR color. +INLINE COLOR RGB15(u32 red, u32 green, u32 blue) +{ return red | (green<<5) | (blue<<10); } + + +// --- Objects --- + + +//! Set the attributes of an object. +INLINE OBJ_ATTR *obj_set_attr(OBJ_ATTR *obj, u16 a0, u16 a1, u16 a2) +{ + obj->attr0= a0; obj->attr1= a1; obj->attr2= a2; + return obj; +} + +//! Set the position of \a obj +INLINE void obj_set_pos(OBJ_ATTR *obj, int x, int y) +{ + BFN_SET(obj->attr0, y, ATTR0_Y); + BFN_SET(obj->attr1, x, ATTR1_X); +} + +//! Hide an object. +INLINE void obj_hide(OBJ_ATTR *obj) +{ BFN_SET2(obj->attr0, ATTR0_HIDE, ATTR0_MODE); } + +//! Unhide an object. +/*! \param obj Object to unhide. +* \param mode Object mode to unhide to. Necessary because this affects +* the affine-ness of the object. +*/ +INLINE void obj_unhide(OBJ_ATTR *obj, u16 mode) +{ BFN_SET2(obj->attr0, mode, ATTR0_MODE); } + + +#endif // TOOLBOX_H |