mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 02:11:36 -04:00
Alex Vanderveen
69 lines
2.6 KiB
C
69 lines
2.6 KiB
C
#include "ws_aspect_cone_math.h"
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#include <stdio.h>
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static int failures;
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static void check(int condition, const char *name) {
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if (condition) {
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printf("PASS %s\n", name);
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} else {
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fprintf(stderr, "FAIL %s\n", name);
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failures++;
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}
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}
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int main(void) {
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/* Camera looking along +X, with an approximately 30-degree vanilla cone. */
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const int32_t q12 = 4096;
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const uint32_t cos_q10 = 880;
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check(psx_ws_aspect_cone_contains(
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1000, 500, 0, q12, 0, 0, cos_q10, 0),
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"vanilla horizontal interior is accepted");
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check(!psx_ws_aspect_cone_contains(
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1000, 650, 0, q12, 0, 0, cos_q10, 0),
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"vanilla horizontal exterior is rejected");
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check(psx_ws_aspect_cone_contains(
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1000, 650, 0, q12, 0, 0, cos_q10, 80),
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"wide extent expands horizontal acceptance");
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check(!psx_ws_aspect_cone_contains(
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1000, 0, 650, q12, 0, 0, cos_q10, 80),
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"wide extent preserves the vertical boundary");
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check(!psx_ws_aspect_cone_contains(
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-1000, 0, 0, q12, 0, 0, cos_q10, 160),
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"points behind the camera are rejected");
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/* A 45-degree pitched forward vector still produces orthogonal forward,
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* horizontal, and vertical tests. */
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check(psx_ws_aspect_cone_contains(
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1000, 0, 1000, 2896, 0, 2896, cos_q10, 0),
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"pitched camera accepts a point on its forward axis");
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check(!psx_ws_aspect_cone_contains(
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1000, 0, -1000, 2896, 0, 2896, cos_q10, 160),
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"horizontal expansion does not bypass pitched vertical rejection");
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check(!psx_ws_aspect_cone_contains(
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1000, 0, 0, q12, 0, 0, 0, 0),
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"invalid zero threshold is inert");
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check(!psx_ws_aspect_cone_contains(
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1000, 0, 0, 0, 0, q12, cos_q10, 0),
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"degenerate horizontal camera basis is inert");
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check(psx_ws_widen_angle_q12(341, 0) == 341,
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"terrain angle is exact at 4:3");
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check(psx_ws_widen_angle_q12(341, 136) == 533,
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"terrain angle follows 21:9 plus guard geometry");
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check(psx_ws_widen_angle_q12(455, 136) == 651,
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"wider vanilla terrain angle scales geometrically");
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check(psx_ws_widen_angle_q12(300, 136) == 484,
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"lava terrain angle uses the same projection geometry");
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check(psx_ws_widen_angle_q12(318, 80) <
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psx_ws_widen_angle_q12(318, 136),
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"terrain angle tracks dynamic horizontal extent");
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check(psx_ws_widen_angle_q12(1023, 256) <= 1023,
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"terrain angle remains below a quarter turn");
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return failures ? 1 : 0;
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}
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