103 lines
4.8 KiB
Text
103 lines
4.8 KiB
Text
# aim_test.ludic - a camera 1.5 m up looking down -z over flat ground with a ridge 42 m out: the ray
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# against a cylinder, the forgiveness, near before far, the ground hiding a thing, the reach floor,
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# which thing the use key means, and the probe agreeing with the ground
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import "ludic.aim"
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import "ludic.base"
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program AimTest {
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numbers float
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state AimtestState {
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cx: float = 0.0
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cy: float = 1.5
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cz: float = 0.0
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fy: float = 0.0
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}
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function fk_x(aimtest_st: AimtestState) -> float { return aimtest_st.cx }
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function fk_y(aimtest_st: AimtestState) -> float { return aimtest_st.cy }
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function fk_z(aimtest_st: AimtestState) -> float { return aimtest_st.cz }
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function fk_fy(aimtest_st: AimtestState) -> float { return aimtest_st.fy }
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function fk_fz(aimtest_st: AimtestState) -> float { return -Math.sqrt(1.0 - aimtest_st.fy * aimtest_st.fy) }
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# a 6 m ridge along z = -42, thirty metres across, the whole width of the view
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function fk_ground(x: float, z: float) -> float { return 6.0 * Math.max(0.0, 1.0 - Math.abs(z + 42.0) / 15.0) }
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function fk_look(aimtest_st: mut AimtestState, x: float, y: float, z: float) -> void {
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aimtest_st.cx = x
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aimtest_st.cy = y
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aimtest_st.cz = z
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}
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bind AimView { x: fn fk_x, y: fn fk_y, z: fn fk_z, fy: fn fk_fy, fz: fn fk_fz, ground: fn fk_ground }
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function fresh(aim_st: mut AimState, aimtest_st: mut AimtestState) -> void {
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aimtest_st.cx = 0.0
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aimtest_st.cy = 1.5
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aimtest_st.cz = 0.0
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aimtest_st.fy = 0.0
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aim_begin(aim_st)
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}
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test "the ray enters a cylinder in front and misses one to the side or behind" (aim_st: mut AimState, aimtest_st: mut AimtestState) {
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fresh(aim_st, aimtest_st)
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expect_near(aim_ray_cyl(0.0, 0.0, 2.0, -10.0, 0.5), 9.5, 0.01)
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expect(aim_ray_cyl(3.0, 0.0, 2.0, -10.0, 0.5) < 0.0)
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expect(aim_ray_cyl(0.0, 0.0, 2.0, 10.0, 0.5) < 0.0)
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expect(aim_ray_cyl(0.0, 0.0, 1.0, -10.0, 0.5) < 0.0)
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expect_near(aim_ray_cyl(0.0, 0.0, 2.0, 0.0, 0.5), 0.0, 0.001)
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}
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test "a thin thing far off is still aimable, by an angle and not a metre" (aim_st: mut AimState, aimtest_st: mut AimtestState) {
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fresh(aim_st, aimtest_st)
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expect(aim_slack_m(20.0) > aim_slack_m(5.0) * 3.9)
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expect(aim_offer(aim_st, 1, 7, 0.25, 0.0, 2.0, -20.0, 0.05, 1.5, 30.0))
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expect(aim_off_centre(aim_st) > 0.5)
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fresh(aim_st, aimtest_st)
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expect(not aim_offer(aim_st, 1, 7, 3.0, 0.0, 2.0, -20.0, 0.05, 1.5, 30.0))
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}
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test "the nearest thing the ray enters is the pick, whatever order they are offered in" (aim_st: mut AimState, aimtest_st: mut AimtestState) {
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fresh(aim_st, aimtest_st)
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expect(aim_offer(aim_st, 1, 1, 0.0, 0.0, 2.0, -20.0, 0.5, 1.5, 30.0))
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expect(aim_offer(aim_st, 1, 2, 0.0, 0.0, 2.0, -8.0, 0.5, 1.5, 30.0))
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expect(not aim_offer(aim_st, 1, 3, 0.0, 0.0, 2.0, -15.0, 0.5, 1.5, 30.0))
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expect_eq(aim_id(aim_st), 2)
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expect_near(aim_dist(aim_st), 8.0, 0.01)
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expect(not aim_offer(aim_st, 2, 4, 0.0, 0.0, 2.0, -25.0, 0.5, 1.5, 30.0))
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expect(not aim_offer(aim_st, 2, 5, 0.0, 0.0, 2.0, -3.0, 0.5, 1.5, 2.0))
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}
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test "the ground in front hides a thing, and nothing within arm's length is hidden" (aim_st: mut AimState, aimtest_st: mut AimtestState) {
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fresh(aim_st, aimtest_st)
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expect(not aim_clear_to(0.0, 1.0, -60.0))
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expect(aim_clear_to(0.0, 1.0, -30.0))
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expect(not aim_offer(aim_st, 1, 1, 0.0, 0.0, 2.0, -60.0, 2.0, 1.5, 80.0))
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aimtest_st.cy = -5.0
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expect(aim_clear_to(0.0, -5.0, -2.0))
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}
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test "the crosshair decides which, the distance whether: every reach is floored at three metres" (aim_st: mut AimState, aimtest_st: mut AimtestState) {
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fresh(aim_st, aimtest_st)
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expect_near(aim_reach_of(1.5), AIM_REACH_MIN, 0.001)
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expect_near(aim_reach_of(3.4), 3.4, 0.001)
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aim_offer(aim_st, 1, 1, 0.0, 0.0, 2.0, -2.6, 0.3, 1.5, 30.0)
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expect(aim_in_reach(aim_st))
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expect_eq(aim_use(aim_st, 1), AIM_USE_THIS)
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fresh(aim_st, aimtest_st)
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aim_offer(aim_st, 1, 1, 0.0, 0.0, 2.0, -6.0, 0.3, 1.5, 30.0)
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expect(not aim_in_reach(aim_st))
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expect_eq(aim_use(aim_st, 1), AIM_USE_NOTHING)
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expect_eq(aim_use(aim_st, 3), AIM_USE_NEAREST)
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fresh(aim_st, aimtest_st)
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aim_offer(aim_st, 1, 1, 0.0, 0.0, 3.0, -20.0, 0.3, 1.5, 30.0)
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expect_eq(aim_use(aim_st, 1), AIM_USE_NEAREST)
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fresh(aim_st, aimtest_st)
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aim_offer(aim_st, 2, 9, 0.0, 0.0, 2.0, -2.0, 0.3, AIM_NEVER, 30.0)
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expect(not aim_in_reach(aim_st))
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expect_eq(aim_kind(aim_st), 2)
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}
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test "the probe finds the bank and agrees with the ground about every line it hides" (aim_st: mut AimState, aimtest_st: mut AimtestState) {
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fresh(aim_st, aimtest_st)
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expect(aim_probe_ground(aim_st, 0.0, 0.0, fn fk_look))
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expect(aim_probe_seen(aim_st) > 100)
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expect(aim_probe_blocked(aim_st) > 0)
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expect(not (aim_probe_disagree(aim_st) > aim_probe_seen(aim_st) / 50))
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}
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}
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