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Document caret stuff some more

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This commit is contained in:
Clownacy 2020-08-05 20:55:50 +01:00
parent 8adf593403
commit d41b3993f5
1 changed files with 72 additions and 49 deletions
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65
src/Caret.cpp
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@ -38,24 +38,24 @@ CARET gCrt[CARET_MAX];
// Sprite offsets // Sprite offsets
CARET_TABLE gCaretTable[18] = { CARET_TABLE gCaretTable[18] = {
{0, 0}, {0, 0}, // Null
{ 4 * 0x200, 4 * 0x200}, { 4 * 0x200, 4 * 0x200}, // Bubble
{ 8 * 0x200, 8 * 0x200}, { 8 * 0x200, 8 * 0x200}, // Projectile dissipation
{ 8 * 0x200, 8 * 0x200}, { 8 * 0x200, 8 * 0x200}, // Shoot
{ 8 * 0x200, 8 * 0x200}, { 8 * 0x200, 8 * 0x200}, // Snake after-image? This doesn't seem to be used.
{ 4 * 0x200, 4 * 0x200}, { 4 * 0x200, 4 * 0x200}, // 'Zzz' - snoring
{ 8 * 0x200, 8 * 0x200}, { 8 * 0x200, 8 * 0x200}, // Duplicate of the Snake after-image
{ 4 * 0x200, 4 * 0x200}, { 4 * 0x200, 4 * 0x200}, // Exhaust (used by the Booster and hoverbike)
{ 8 * 0x200, 8 * 0x200}, { 8 * 0x200, 8 * 0x200}, // Drowned Quote
{ 8 * 0x200, 8 * 0x200}, { 8 * 0x200, 8 * 0x200}, // The '?' that appears when you press the down key
{28 * 0x200, 8 * 0x200}, {28 * 0x200, 8 * 0x200}, // 'Level Up!'
{ 4 * 0x200, 4 * 0x200}, { 4 * 0x200, 4 * 0x200}, // Red hurt particles (used by bosses and invisible hidden pickups)
{16 * 0x200, 16 * 0x200}, {16 * 0x200, 16 * 0x200}, // Missile Launcher explosion flash
{ 4 * 0x200, 4 * 0x200}, { 4 * 0x200, 4 * 0x200}, // Dust particles (used when Quote jumps into the ceiling)
{20 * 0x200, 20 * 0x200}, {20 * 0x200, 20 * 0x200}, // Broken (unknown and unused)
{ 4 * 0x200, 4 * 0x200}, { 4 * 0x200, 4 * 0x200}, // Tiny version of the projectile dissipation effect
{20 * 0x200, 4 * 0x200}, {20 * 0x200, 4 * 0x200}, // 'Empty!'
{52 * 0x200, 4 * 0x200} {52 * 0x200, 4 * 0x200} // 'PUSH JUMP KEY!' (unused)
}; };
void InitCaret(void) void InitCaret(void)
@ -63,11 +63,13 @@ void InitCaret(void)
memset(gCrt, 0, sizeof(gCrt)); memset(gCrt, 0, sizeof(gCrt));
} }
// Null
void ActCaret00(CARET *crt) void ActCaret00(CARET *crt)
{ {
(void)crt; (void)crt;
} }
// Bubble
void ActCaret01(CARET *crt) void ActCaret01(CARET *crt)
{ {
RECT rcLeft[4] = { RECT rcLeft[4] = {
@ -114,6 +116,7 @@ void ActCaret01(CARET *crt)
crt->rect = rcRight[crt->ani_no]; crt->rect = rcRight[crt->ani_no];
} }
// Projectile dissipation
void ActCaret02(CARET *crt) void ActCaret02(CARET *crt)
{ {
RECT rect_left[4] = { RECT rect_left[4] = {
@ -187,6 +190,7 @@ void ActCaret02(CARET *crt)
} }
} }
// Shoot
void ActCaret03(CARET *crt) void ActCaret03(CARET *crt)
{ {
RECT rect[4] = { RECT rect[4] = {
@ -212,17 +216,19 @@ void ActCaret03(CARET *crt)
crt->rect = rect[crt->ani_no]; crt->rect = rect[crt->ani_no];
} }
// Snake after-image? This doesn't seem to be used.
void ActCaret04(CARET *crt) void ActCaret04(CARET *crt)
{ {
RECT rect[9] = { RECT rect[9] = {
// Left
{64, 32, 80, 48}, {64, 32, 80, 48},
{80, 32, 96, 48}, {80, 32, 96, 48},
{96, 32, 112, 48}, {96, 32, 112, 48},
// Up
{64, 48, 80, 64}, {64, 48, 80, 64},
{80, 48, 96, 64}, {80, 48, 96, 64},
{96, 48, 112, 64}, {96, 48, 112, 64},
// Right
{64, 64, 80, 80}, {64, 64, 80, 80},
{80, 64, 96, 80}, {80, 64, 96, 80},
{96, 64, 112, 80}, {96, 64, 112, 80},
@ -244,6 +250,7 @@ void ActCaret04(CARET *crt)
crt->rect = rect[(crt->direct * 3) + crt->ani_no]; crt->rect = rect[(crt->direct * 3) + crt->ani_no];
} }
// 'Zzz' - snoring
void ActCaret05(CARET *crt) void ActCaret05(CARET *crt)
{ {
RECT rect[7] = { RECT rect[7] = {
@ -276,6 +283,9 @@ void ActCaret05(CARET *crt)
crt->rect = rect[crt->ani_no]; crt->rect = rect[crt->ani_no];
} }
// No ActCaret06...
// Exhaust (used by the Booster and hoverbike)
void ActCaret07(CARET *crt) void ActCaret07(CARET *crt)
{ {
RECT rcLeft[7] = { RECT rcLeft[7] = {
@ -320,6 +330,7 @@ void ActCaret07(CARET *crt)
} }
} }
// Drowned Quote
void ActCaret08(CARET *crt) void ActCaret08(CARET *crt)
{ {
RECT rcLeft = {16, 80, 32, 96}; RECT rcLeft = {16, 80, 32, 96};
@ -331,6 +342,7 @@ void ActCaret08(CARET *crt)
crt->rect = rcRight; crt->rect = rcRight;
} }
// The '?' that appears when you press the down key
void ActCaret09(CARET *crt) void ActCaret09(CARET *crt)
{ {
RECT rcLeft = {0, 80, 16, 96}; RECT rcLeft = {0, 80, 16, 96};
@ -348,6 +360,7 @@ void ActCaret09(CARET *crt)
crt->rect = rcRight; crt->rect = rcRight;
} }
// 'Level Up!'
void ActCaret10(CARET *crt) void ActCaret10(CARET *crt)
{ {
RECT rcLeft[2] = { RECT rcLeft[2] = {
@ -385,6 +398,7 @@ void ActCaret10(CARET *crt)
crt->rect = rcRight[crt->ani_wait / 2 % 2]; crt->rect = rcRight[crt->ani_wait / 2 % 2];
} }
// Red hurt particles (used by bosses and invisible hidden pickups)
void ActCaret11(CARET *crt) void ActCaret11(CARET *crt)
{ {
unsigned char deg; unsigned char deg;
@ -426,6 +440,7 @@ void ActCaret11(CARET *crt)
crt->rect = rcRight[crt->ani_no]; crt->rect = rcRight[crt->ani_no];
} }
// Missile Launcher explosion flash
void ActCaret12(CARET *crt) void ActCaret12(CARET *crt)
{ {
RECT rcLeft[2] = { RECT rcLeft[2] = {
@ -449,6 +464,7 @@ void ActCaret12(CARET *crt)
crt->rect = rcLeft[crt->ani_no]; crt->rect = rcLeft[crt->ani_no];
} }
// Particles used when Quote jumps into the ceiling
void ActCaret13(CARET *crt) void ActCaret13(CARET *crt)
{ {
RECT rcLeft[2] = { RECT rcLeft[2] = {
@ -493,8 +509,12 @@ void ActCaret13(CARET *crt)
crt->x -= 4 * 0x200; crt->x -= 4 * 0x200;
} }
// Broken (unknown and unused)
void ActCaret14(CARET *crt) void ActCaret14(CARET *crt)
{ {
// These rects are invalid.
// However, notably, there are 5 unused 40x40 sprites at the bottom of Caret.pbm.
// Perhaps those were originally at these coordinates.
RECT rect[5] = { RECT rect[5] = {
{0, 96, 40, 136}, {0, 96, 40, 136},
{40, 96, 80, 136}, {40, 96, 80, 136},
@ -519,6 +539,7 @@ void ActCaret14(CARET *crt)
crt->rect = rect[crt->ani_no]; crt->rect = rect[crt->ani_no];
} }
// Tiny version of the projectile dissipation effect
void ActCaret15(CARET *crt) void ActCaret15(CARET *crt)
{ {
RECT rcLeft[4] = { RECT rcLeft[4] = {
@ -544,6 +565,7 @@ void ActCaret15(CARET *crt)
crt->rect = rcLeft[crt->ani_no]; crt->rect = rcLeft[crt->ani_no];
} }
// 'Empty!'
void ActCaret16(CARET *crt) void ActCaret16(CARET *crt)
{ {
RECT rcLeft[2] = { RECT rcLeft[2] = {
@ -560,6 +582,7 @@ void ActCaret16(CARET *crt)
crt->rect = rcLeft[crt->ani_wait / 2 % 2]; crt->rect = rcLeft[crt->ani_wait / 2 % 2];
} }
// 'PUSH JUMP KEY!' (unused)
void ActCaret17(CARET *crt) void ActCaret17(CARET *crt)
{ {
RECT rcLeft[2] = { RECT rcLeft[2] = {
@ -585,7 +608,7 @@ CARETFUNCTION gpCaretFuncTbl[18] =
ActCaret03, ActCaret03,
ActCaret04, ActCaret04,
ActCaret05, ActCaret05,
ActCaret04, ActCaret04, // Interestingly, this slot is a duplicate
ActCaret07, ActCaret07,
ActCaret08, ActCaret08,
ActCaret09, ActCaret09,