--- /dev/null
+// ----------------------------------------------------------------------------
+// Zonk.c
+// ----------------------------------------------------------------------------
+
+#include "Zonk.h"
+
+// static char *VB_Name = "modZonk";
+// --- Option Explicit
+
+// ==========================================================================
+// SUBROUTINE
+// Animate Zonks (falling)
+// ==========================================================================
+
+int subAnimateZonks(int si)
+{
+ int subAnimateZonks;
+
+ int tFld;
+
+ // PseudoRegisters:
+ // int ax, bx, cx, dx, di, X, Y;
+ int ax, bx, dx, X, Y;
+ // int ah, bh, ch, dh, al, bl, cl, dl;
+ int al, bl;
+
+ tFld = PlayField16[si];
+ if ((tFld & 0xFF) != fiZonk)
+ return subAnimateZonks;
+
+ if (tFld == fiZonk)
+ {
+ if (FreezeZonks == 2) // Do Zonks fall? (debug)
+ return subAnimateZonks;
+
+ ax = PlayField16[si + FieldWidth]; // select case playfield16(si+60)
+ if (ax == 0)
+ goto loc_g_0D64;
+
+ if (ax == fiZonk)
+ goto loc_g_0D35;
+
+ if (ax == fiInfotron)
+ goto loc_g_0D35;
+
+ if (ax == fiRAM)
+ goto loc_g_0D35;
+
+ return subAnimateZonks;
+
+loc_g_0D35: // Case fiZonk, fiInfotron, fiRAM
+ ax = PlayField16[si + FieldWidth - 1];
+ if (ax == 0 || ax == 0x8888 || ax == 0xAAAA)
+ goto loc_g_0D6B;
+
+loc_g_0D4C:
+ ax = PlayField16[si + FieldWidth + 1];
+ if (ax == 0 || ax == 0x8888 || ax == 0xAAAA)
+ goto loc_g_0D81;
+
+ return subAnimateZonks;
+
+loc_g_0D64: // Case fiSpace
+ MovHighByte(&PlayField16[si], 0x40);
+ goto loc_g_0DA5;
+
+loc_g_0D6B: // roll left?
+ if (PlayField16[si - 1] == 0)
+ goto loc_g_0D74;
+
+ goto loc_g_0D4C;
+
+loc_g_0D74:
+ MovHighByte(&PlayField16[si], 0x50);
+ PlayField16[si - 1] = 0x8888;
+ goto loc_g_0DA5;
+
+loc_g_0D81: // roll right?
+ if (PlayField16[si + 1] == 0)
+ goto loc_g_0D98;
+
+ if (PlayField16[si + 1] != 0x9999) // wow right is different from left!
+ return subAnimateZonks;
+
+ if (LowByte(PlayField16[si - FieldWidth + 1]) != 1)
+ return subAnimateZonks;
+
+loc_g_0D98:
+ MovHighByte(&PlayField16[si], 0x60);
+ PlayField16[si + 1] = 0x8888;
+ } // tFld = fiZonk
+
+loc_g_0DA5:
+ // from now on the zonk is definitely moving,
+ // maybe the sequence is in an advanced frame
+ // or just beeing initialized due to the code above
+ bl = HighByte(PlayField16[si]);
+ bx = 0;
+ MovLowByte(&bx, bl);
+ al = bl & 0xF0;
+ if (al == 0x10) // zonk comes falling from above
+ goto loc_g_0DE8;
+
+ if (al == 0x20) // zonk comes rolling from right to left
+ goto loc_g_0F83;
+
+ if (al == 0x30) // zonk comes rolling from left to right
+ goto loc_g_0FE8;
+
+ if (FreezeZonks == 2)
+ return subAnimateZonks;
+
+ if (al == 0x40) // zonk falls straight down
+ goto loc_g_104D;
+
+ if (al == 0x50) // zonk rolls left
+ goto loc_g_107B;
+
+ if (al == 0x60) // zonk rolls right
+ goto loc_g_10E9;
+
+ if (al == 0x70) // intermediate state
+ goto loc_g_1157;
+
+ return subAnimateZonks;
+
+loc_g_0DE8: // zonk comes falling from above
+ // To Do: draw zonk falling from above
+ // according to position in (bl And &H07)
+ // +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ X = GetStretchX(si);
+ Y = GetStretchY(si - FieldWidth);
+ dx = bl & 0x7;
+ StretchedSprites.BltEx(X, Y, 0);
+ StretchedSprites.BltEx(X, Y + TwoPixels * (dx + 1), fiZonk);
+ // +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ bl = HighByte(PlayField16[si]) + 1;
+ if (bl == 0x16)
+ {
+ MovHighByte(&PlayField16[si], bl);
+ subCleanUpForZonksAbove(si - FieldWidth);
+ return subAnimateZonks;
+ } // loc_g_0E2B:
+
+ if (bl < 0x18)
+ {
+ MovHighByte(&PlayField16[si], bl);
+ return subAnimateZonks;
+ } // loc_g_0E35:
+
+ MovHighByte(&PlayField16[si], 0); // zonk arrived at the field
+ if ((FreezeZonks & 0xFF) == 2)
+ return subAnimateZonks;
+
+ // loc_g_0E42: // now check if the zonk may go on falling somehow
+ ax = PlayField16[si + FieldWidth];
+ if (ax == 0) // below is empty!-> go on falling 'loc_g_0E4C:
+ goto loc_g_0EDD;
+
+ if (ax == 0x9999) // below is only temporarily used ' loc_g_0E57:
+ goto loc_g_0EDD;
+
+ if ((ax & 0xFF) == fiMurphy) // Murphy dies 'loc_g_0E61:
+ goto loc_g_0F14;
+
+ if ((ax & 0xFF) == fiSnikSnak) // SnikSnak dies 'loc_g_0E6B:
+ goto loc_g_0F6E;
+
+ if (ax == 0x2BB) // loc_g_0E76:
+ goto loc_g_0F36;
+
+ if (ax == 0x4BB) // loc_g_0E81:
+ goto loc_g_0F52;
+
+ if ((ax & 0xFF) == fiElectron) // Electron cracked! 'loc_g_0E8B:
+ goto loc_g_0F6E;
+
+ if (ax == fiOrangeDisk) // OrangeDisk explodes 'loc_g_0E95:
+ goto loc_g_0F75;
+
+ subSoundFXZonk(); // play the zonk sound,'cause zonk hits something "hard"
+
+ if (! (ax == fiZonk || ax == fiInfotron || ax == fiRAM))
+ return subAnimateZonks;
+
+ // loc_g_0EAE: ' Zonk rolls somewhere
+ ax = PlayField16[si + FieldWidth - 1];
+ if (ax == 0 || ax == 0x8888 || ax == 0xAAAA) // may roll left
+ goto loc_g_0EEA;
+
+ ax = PlayField16[si + FieldWidth + 1];
+ if (ax == 0 || ax == 0x8888 || ax == 0xAAAA) // may roll right
+ goto loc_g_0F00;
+
+ return subAnimateZonks;
+
+loc_g_0EDD: // go on falling down?
+ PlayField16[si] = 0x7001; // go into intermediate waitstate
+ PlayField16[si + FieldWidth] = 0x9999; // mark as "zonk waiting to access"
+ return subAnimateZonks;
+
+loc_g_0EEA: // test if zonk may roll left
+ // This if(if true) jumps up far above
+ // to the according rountine for fixed zonks!
+ if (PlayField16[si - 1] != 0) // Remarkable!!! ' loc_g_0EF4:
+ goto loc_g_0D4C;
+
+ MovHighByte(&PlayField16[si], 0x50); // zonk rolls left
+ Mov(&PlayField16[si - 1], 0x8888); // mark as zonk accessing?
+ return subAnimateZonks;
+
+loc_g_0F00: // test if zonk may roll right
+ if (PlayField16[si + 1] != 0) // loc_g_0F08:
+ return subAnimateZonks;
+
+ MovHighByte(&PlayField16[si], 0x60); // zonk rolls right
+ Mov(&PlayField16[si + 1], 0x8888); // mark as zonk accessing?
+ return subAnimateZonks;
+
+loc_g_0F14: // Murphy dies, but not in any case
+ bl = HighByte(PlayField16[si + FieldWidth]);
+ if (bl == 0xE || bl == 0xF || bl == 0x28)
+ return subAnimateZonks;
+
+ if (bl == 0x29 || bl == 0x25 || bl == 0x26)
+ return subAnimateZonks;
+
+loc_g_0F36: // ??
+ ax = LowByte(PlayField16[si + FieldWidth - 1]);
+ if (ax == fiElectron) // loc_g_0F43:
+ PlayField16[si + FieldWidth] = fiElectron;
+
+ if (ax != 0x1F)
+ PlayField16[si + FieldWidth - 1] = 0;
+
+ goto loc_g_0F6E;
+
+loc_g_0F52: // ??
+ ax = LowByte(PlayField16[si + FieldWidth + 1]);
+ if (ax == fiElectron) // loc_g_0F5F:
+ PlayField16[si + FieldWidth] = fiElectron;
+
+ if (ax != 0x1F)
+ PlayField16[si + FieldWidth + 1] = 0;
+
+ goto loc_g_0F6E;
+
+loc_g_0F6E: // someone dies/explodes
+ si = si + FieldWidth; // 1 field down
+ ExplodeFieldSP(si); // Explode
+ return subAnimateZonks;
+
+loc_g_0F75: // OrangeDisk explodes next cycle
+ si = si + FieldWidth; // 1 field down
+ PlayField8[si] = fiHardWare;
+ return subAnimateZonks;
+
+loc_g_0F83: // zonk comes rolling from right to left
+ // To Do: draw zonk rolling from right
+ // according to position in (bl And &H07)
+ // +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ X = GetStretchX(si + 1);
+ Y = GetStretchY(si);
+ dx = (bl & 0x7) + 1;
+ StretchedSprites.BltEx(X, Y, 0);
+ StretchedSprites.BltEx(X - (TwoPixels * dx), Y, aniZonkRollLeft[dx - 1]);
+ // +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ bl = HighByte(PlayField16[si]) + 1; // get and increment sequence#
+ if (bl == 0x24)
+ PlayField16[si + 1] = 0xAAAA;
+
+ if (bl == 0x26)
+ {
+ MovHighByte(&PlayField16[si], bl);
+ subCleanUpForZonksAbove(si + 1);
+ }
+ else if (bl < 0x28)
+ {
+ MovHighByte(&PlayField16[si], bl);
+ }
+ else
+ {
+ PlayField16[si] = 0xFFFF;
+ si = si + FieldWidth; // 1 field down
+ PlayField16[si] = 0x1001; // convert rolling zonk to a falling zonk
+ }
+
+ return subAnimateZonks;
+
+loc_g_0FE8: // zonk comes rolling from left to right
+ // To Do: draw zonk rolling from left
+ // according to position in (bl And &H07)
+ // +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ X = GetStretchX(si - 1);
+ Y = GetStretchY(si);
+ dx = (bl & 0x7) + 1;
+ StretchedSprites.BltEx(X, Y, 0);
+ StretchedSprites.BltEx(X + (TwoPixels * dx), Y, aniZonkRollRight[dx - 1]);
+ // +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ bl = HighByte(PlayField16[si]) + 1;
+ if (bl == 0x34)
+ PlayField16[si - 1] = 0xAAAA;
+
+ if (bl == 0x36)
+ {
+ MovHighByte(&PlayField16[si], bl);
+ subCleanUpForZonksAbove(si - 1);
+ }
+ else if (bl < 0x38)
+ {
+ MovHighByte(&PlayField16[si], bl);
+ }
+ else
+ {
+ PlayField16[si] = 0xFFFF;
+ si = si + FieldWidth; // 1 field down
+ PlayField16[si] = 0x1001; // convert rolling zonk to a falling zonk
+ }
+
+ return subAnimateZonks;
+
+loc_g_104D: // zonk falls straight down
+ bl = bl + 1;
+ if (bl < 0x42)
+ {
+ MovHighByte(&PlayField16[si], bl);
+ }
+ else if (PlayField16[si + FieldWidth] != 0)
+ {
+ bl = bl - 1; // stay waiting
+ MovHighByte(&PlayField16[si], bl);
+ }
+ else
+ {
+ PlayField16[si] = 0xFFFF; // mark as "zonk leaving"
+ si = si + FieldWidth; // 1 field down
+ PlayField16[si] = 0x1001; // go falling
+ }
+
+ return subAnimateZonks;
+
+loc_g_107B: // zonk rolls left
+ // To Do: draw zonk rolling to left
+ // according to position in (bl And &H0F)
+ // +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ X = GetStretchX(si);
+ Y = GetStretchY(si);
+ dx = (bl & 0xF) + 1;
+ StretchedSprites.BltEx(X, Y, 0);
+ StretchedSprites.BltEx(X - (TwoPixels * dx), Y, aniZonkRollLeft[dx - 1]);
+ // +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ bl = HighByte(PlayField16[si]) + 1; // retrieve and increment sequence#
+ if (bl < 0x52)
+ {
+ MovHighByte(&PlayField16[si], bl);
+ return subAnimateZonks;
+ }
+
+ if (PlayField16[si + FieldWidth - 1] != 0)
+ goto loc_g_10E2;
+
+ if (PlayField16[si - 1] != 0)
+ {
+ if (PlayField16[si - 1] != 0x8888)
+ goto loc_g_10E2;
+ } // loc_g_10C8:
+
+ PlayField16[si] = 0xFFFF;
+ si = si - 1; // 1 field left
+ PlayField16[si] = 0x2201;
+ PlayField16[si + FieldWidth] = 0xFFFF;
+ return subAnimateZonks;
+
+loc_g_10E2: // stay waiting
+ bl = bl - 1;
+ MovHighByte(&PlayField16[si], bl);
+ return subAnimateZonks;
+
+loc_g_10E9: // zonk rolls right
+ // To Do: draw zonk rolling to right
+ // according to position in (bl And &H07)
+ // +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ X = GetStretchX(si);
+ Y = GetStretchY(si);
+ dx = (bl & 0x7) + 1;
+ StretchedSprites.BltEx(X, Y, 0);
+ StretchedSprites.BltEx(X + (TwoPixels * dx), Y, aniZonkRollRight[dx - 1]);
+ // +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ bl = HighByte(PlayField16[si]) + 1;
+ if (bl < 0x62)
+ {
+ MovHighByte(&PlayField16[si], bl);
+ return subAnimateZonks;
+ }
+
+ if (PlayField16[si + FieldWidth + 1] != 0)
+ goto loc_g_1150;
+
+ if (PlayField16[si + 1] != 0)
+ {
+ if (PlayField16[si + 1] != 0x8888)
+ goto loc_g_1150;
+ }
+
+ PlayField16[si] = 0xFFFF;
+ si = si + 1;
+ PlayField16[si] = 0x3201;
+ PlayField16[si + FieldWidth] = 0xFFFF;
+ return subAnimateZonks;
+
+loc_g_1150: // stay waiting
+ bl = bl - 1;
+ MovHighByte(&PlayField16[si], bl);
+ return subAnimateZonks;
+
+loc_g_1157: // intermediate state
+ ax = PlayField16[si + FieldWidth];
+ if (ax == 0 || ax == 0x9999)
+ {
+ PlayField16[si] = 0xFFFF;
+ si = si + FieldWidth; // 1 field down
+ PlayField16[si] = 0x1001; // start falling down
+ goto loc_g_0DE8;
+ }
+
+ return subAnimateZonks;
+} // subAnimateZonks endp
+
+int subCleanUpForZonksAbove(int si)
+{
+ int subCleanUpForZonksAbove;
+
+ int ax;
+
+ if (LowByte(PlayField16[si]) != fiExplosion)
+ PlayField16[si] = 0;
+
+ if (PlayField16[si - FieldWidth] != 0)
+ {
+ if (PlayField16[si - FieldWidth] != 0x9999)
+ return subCleanUpForZonksAbove;
+
+ if (LowByte(PlayField16[si - 2 * FieldWidth]) != fiInfotron)
+ return subCleanUpForZonksAbove;
+ } // loc_g_1674:
+
+ if (PlayField16[si - FieldWidth - 1] != fiZonk)
+ {
+ if (PlayField16[si - FieldWidth + 1] != fiZonk)
+ return subCleanUpForZonksAbove;
+
+ goto loc_g_16A7;
+ }
+
+ ax = PlayField16[si - 1];
+ if (ax == fiZonk || ax == fiInfotron || ax == fiRAM)
+ {
+ PlayField16[si - FieldWidth - 1] = 0x6001;
+ PlayField16[si - FieldWidth] = 0x8888;
+ return subCleanUpForZonksAbove;
+ }
+
+ if (PlayField16[si - FieldWidth + 1] != fiZonk)
+ return subCleanUpForZonksAbove;
+
+loc_g_16A7:
+ ax = PlayField16[si + 1];
+ if (ax == fiZonk || ax == fiInfotron || ax == fiRAM)
+ {
+ PlayField16[si - FieldWidth + 1] = 0x5001;
+ PlayField16[si - FieldWidth] = 0x8888;
+ }
+
+ return subCleanUpForZonksAbove;
+} // subCleanUpForZonksAbove
+
projects / rocksndiamonds.git / blobdiff