#include "../copyright" #include #include #include "c4.h" #include "memmap.h" int16_t C4WFXVal; int16_t C4WFYVal; int16_t C4WFZVal; int16_t C4WFX2Val; int16_t C4WFY2Val; int16_t C4WFDist; int16_t C4WFScale; static double tanval; static double c4x, c4y, c4z; static double c4x2, c4y2, c4z2; void C4TransfWireFrame() { c4x = (double) C4WFXVal; c4y = (double) C4WFYVal; c4z = (double) C4WFZVal - 0x95; // Rotate X tanval = -(double) C4WFX2Val * 3.14159265 * 2 / 128; c4y2 = c4y * cos(tanval) - c4z * sin(tanval); c4z2 = c4y * sin(tanval) + c4z * cos(tanval); // Rotate Y tanval = -(double)C4WFY2Val * 3.14159265 * 2 / 128; c4x2 = c4x * cos(tanval) + c4z2 * sin(tanval); c4z = c4x * - sin(tanval) + c4z2 * cos(tanval); // Rotate Z tanval = -(double) C4WFDist * 3.14159265 * 2 / 128; c4x = c4x2 * cos(tanval) - c4y2 * sin(tanval); c4y = c4x2 * sin(tanval) + c4y2 * cos(tanval); // Scale C4WFXVal = (int16_t)(c4x * (double)C4WFScale / (0x90 * (c4z + 0x95)) * 0x95); C4WFYVal = (int16_t)(c4y * (double)C4WFScale / (0x90 * (c4z + 0x95)) * 0x95); } void C4TransfWireFrame2() { c4x = (double)C4WFXVal; c4y = (double)C4WFYVal; c4z = (double)C4WFZVal; // Rotate X tanval = -(double) C4WFX2Val * 3.14159265 * 2 / 128; c4y2 = c4y * cos(tanval) - c4z * sin(tanval); c4z2 = c4y * sin(tanval) + c4z * cos(tanval); // Rotate Y tanval = -(double) C4WFY2Val * 3.14159265 * 2 / 128; c4x2 = c4x * cos(tanval) + c4z2 * sin(tanval); c4z = c4x * -sin(tanval) + c4z2 * cos(tanval); // Rotate Z tanval = -(double)C4WFDist * 3.14159265 * 2 / 128; c4x = c4x2 * cos(tanval) - c4y2 * sin(tanval); c4y = c4x2 * sin(tanval) + c4y2 * cos(tanval); // Scale C4WFXVal = (int16_t)(c4x * (double)C4WFScale / 0x100); C4WFYVal = (int16_t)(c4y * (double)C4WFScale / 0x100); } void C4CalcWireFrame() { C4WFXVal = C4WFX2Val - C4WFXVal; C4WFYVal = C4WFY2Val - C4WFYVal; if (abs(C4WFXVal) > abs(C4WFYVal)) { C4WFDist = abs(C4WFXVal) + 1; C4WFYVal = (int16_t)(256 * (double) C4WFYVal / abs(C4WFXVal)); if (C4WFXVal < 0) C4WFXVal = -256; else C4WFXVal = 256; } else { if (C4WFYVal != 0) { C4WFDist = abs(C4WFYVal) + 1; C4WFXVal = (int16_t)(256 * (double)C4WFXVal / abs(C4WFYVal)); if (C4WFYVal < 0) C4WFYVal = -256; else C4WFYVal = 256; } else C4WFDist = 0; } } int16_t C41FXVal; int16_t C41FYVal; int16_t C41FAngleRes; int16_t C41FDist; int16_t C41FDistVal; void C4Op1F() { if (C41FXVal == 0) { if (C41FYVal > 0) C41FAngleRes = 0x80; else C41FAngleRes = 0x180; } else { tanval = (double) C41FYVal / C41FXVal; C41FAngleRes = (int16_t)(atan(tanval) / (3.141592675 * 2) * 512); if (C41FXVal < 0) C41FAngleRes += 0x100; C41FAngleRes &= 0x1FF; } } void C4Op15() { tanval = sqrt((double) C41FYVal * C41FYVal + (double) C41FXVal * C41FXVal); C41FDist = (int16_t) tanval; } void C4Op0D() { tanval = sqrt((double) C41FYVal * C41FYVal + (double) C41FXVal * C41FXVal); tanval = C41FDistVal / tanval; C41FYVal = (int16_t)(C41FYVal * tanval * 0.99); C41FXVal = (int16_t)(C41FXVal * tanval * 0.98); }